Answers
Answer:
3-5: 3+(-5) and -5+3
5-3: 5+(-3) and -3+5
Step-by-step explanation:
3+(-5) is 3 plus -5 which is simplified into 3-5
-5+3 can be rearranged to make 3-5
5+(-3) is 5 plus -3 which is simplified into 5-3
-3+5 can be rearranged to make 5-3
3+(-5)
Second
5+(-3)
Related Questions
function expressed by formula y=-0.5x is there a value of x for which y=-150 if there is such value then solve it
Answers
Answer:
3000
Step-by-step explanation:
y=-.05x
y=-150
x*.05=150
150/.05=3000
Answer:
3000
Step-by-step explanation:
Someone help me, I’m struggling and I would be so happy if any of you helped me
Answers
Answer:
1. 75 grams of Toasty Oats for 9 grams of protein
2. Toasty Oats
Step-by-step explanation:
By using cross multiplication we can figure out how many grams of Toasty Oats is needed for 9 grams of protein:
[tex]\frac{12}{100}* \frac{9}{x}[/tex] (x) being the grams of toasty oats.
Cross multiply: 12x = 900
solve for x: 900/12 = x
x = 75 grams of toasty oats needed for 9 grams of protein
To find which one has the better ratio of proteins to grams of cereal,
we can multiply the amount of cereal together to get the same denominator
12/100 and 5/45
12/100 * 9
5/45 * 20
to get the same denominator
108/900 and 100/900
we can see the (12/100)*9 has more protein to grams of cereal ratio than (5/45)*20.
Answer:
1. 75 grams of Toasty Oats for 9 grams of protein
2. Toasty Oats
Step-by-step explanation:
Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour):
Number of hours in school per day 4 5 6 7 8 Sample A: Number of students 70 100 125 135 70 Sample B: Number of students 80 90 120 125 85 Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? Explain your answer in two or three sentences. Make sure to use facts to support your answer.
Answers
Answer:
The mean would be 6, meaning Tara is correct.
Step-by-step explanation:
The reason to why this is the answer is that I had to add all the “number of hours in a school per day” to get 30. Then, you would have to divide 30 by 5 (because you have five different hours for a school day) to get 6. Your mean would be 6 because mean is adding up the amount of something, then dividing it of how many numbers you added.
Tara think correct mean i.e., 6 . The student spends a mean of 6 hours in school each day.
Tara is correct.
What is mean of the data?Arithmetic mean or mean or average is the number that is obtained by adding the values of all the items of a series and dividing it by the number of observations.
As per given that :
Time slots (in hours): 4, 5, 6, 7, 8
Sample A: 70 100 125 135 70
Sample B: 80 90 120 125 85
For Sample A, the mean will be
[tex]\frac{\sum fx}{\sum f}[/tex]= [tex]\frac{3035}{500}[/tex]
=6.07
For Sample B, the mean will be
[tex]\frac{\sum fx}{\sum f}[/tex]= [tex]\frac{3045}{500}[/tex]
=6.09
The average mean will be = [tex]\frac{6.07+6.09}{2}[/tex]
=6.08
Tara assumed the correct mean.
Learn more about mean here:
https://brainly.com/question/16415816
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HELP ILL GIVE BRAINLIEST
Part 1: Which compound does C represent?
Part 2: Name a process that could release this compound into the air.
Part 3: Explain how the elements that form it are conserved during the carbon cycle. Use complete sentences to explain your answer.
Justify how this compound was created from a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer.
Answers
The process that arrow C signifies is the burning of fossil fuels in order to present carbon dioxide into the atmosphere. The mentioned procedure in the carbon cycle is comparatively new as humans were not able to generate huge concentrations of carbon dioxide by burning fossil fuels until the emergence of the Industrial revolution.
Part 2:
The phenomenon, which could discharge the compound into the air is the burning of fuels. It is an oxidation reaction in which the carbon present in the hydrocarbons in the fuel is oxidized to carbon dioxide by the presence of oxygen in the air. The carbon dioxide discharged into the atmosphere contributes to the greenhouse effect.
Part 3:
The elements, which produce it are conserved at the time of the carbon cycle by the Law of Conservation of Matter. According to this law, the matter is neither consumed nor produced, it only gets transformed. So, at the time of chemical procedures in the carbon cycle, the atoms of carbon are never destructed, however, they get rearrange and modify into distinct molecules. The mentioned cycle is essential for maintaining life on Earth.
A square of 81cm² is cut to make two rectangles, A and B
The ratio of area A to are B is 2:3
Work out the dimensions of A and B
Answers
Answer:
Length of A: 9
Width of A: 6
Length of B: 9
Width of B: 3
Step-by-step explanation:
If you look at the diagram, you can see that the length of rectangles A and B are the same, and are also the same as they were in the original square. We can find the length of each side by finding the square root of the area of the square to give us the length and width of the square which is 9. Now that we know that the length of both rectangles A and B, we can find the width of both rectangles by taking 9, and splitting it into 3 portions of 3. Since the ratio of area is 2:1, we could also do this with the area, but since we know the lengths are the same, we know the widths are proportional to the area. Using the ratio of 2:1, and the 3 portions of 3, you can combine 2 of these portions to get 6, and since the ratio 6:3 is proportional to 2:1, these measurements can be used as the width of each rectangle. Thus, the answer given above.
Answer:
Length of A: 9
Width of A: 6
Length of B: 9
Width of B: 3
Step-by-step explanation:
Please help me with this question. Please, this is due today. Helppppp meeee
Answers
Answer:
6by6by8
Step-by-step explanation:
Answer:
6m
6m
8m
Step-by-step explanation:
calm down ...
don't let a strange problem description overwhelm you right away.
always try to work with the things you know first. and only when you run into something you really don't know, start thinking.
so, perimeter.
your know, what a perimeter is ? it is the circumference. all the side lengths added together. the answer to "how much distance would you have to go, to walk all the way around it one time".
so, what is the circumference of the square based on what we know ?
well, it has 4 equal sides, right ? otherwise it would not be a square.
so, the perimeter is 4×(x+2) = 4x + 8
that is perfectly fine.
now to the next part we know.
the perimeter of the triangle is the sum of its 3 sides (otherwise it would not be a triangle).
an isoceles triangle is a special triangle that has 2 equal sides.
so, we actually know all 3 sides (at least relatively) :
x+3
x+5
and ... another
x+3 (because of the isoceles property)
so, the perimeter is
x + 3 + x + 3 + x + 5 = 3x + 11
alright.
and now we also know that both perimeters are of equal length.
what did that mean ?
that both expressions deliver the same result.
therefore,
4x + 8 = 3x + 11
aha !
x = 3
bingo !
therefore, the side lengths of the triangle are
x+3 = 3+3 = 6 (both sides in the top)
x+5 = 3+5 = 8
and that's all there is to it.
it is really not necessary to panic don't you think ?
I NEED HELP WITH THIS!!
Question: solve the one-step equation.
r-6=7
Answers
Answer:
r = 13
Step-by-step explanation:
r-6=7
Add 6 to each side
r-6+6=7+6
r = 13
The equation of the line of best fit relating age (in years, x) and the median height (in cm, y) of boys is given.
y = 6.5x + 75.5y=6.5x+75.5
Predict the median height of boys age 13.
123 cm
140 cm
160 cm
82 cm
Answers
Answer:
160 cm
Step-by-step explanation:
Substitute x = 13 into the equation
y = 6.5(13) + 75.5 = 84.5 + 75.5 = 160
The median height of boys age 13 is 160 cm
Explain: I just got a feeling
Plese helppp me with this will give the brainlest please help
Answers
==============================================================
Explanation:
We'll add up the values in the bottom row of the table.
A value like +150 is the same as simply saying 150
The negatives stick around.
Adding up the values in that row gets us
150 + (-50) + 400 + 300 + (-175) + (-250) = 375
This indicates that over the entire 6 month period, the overall change is +375
---------
In other words, the initial investment (call it x) has increased by 375 dollars over the 6 month period.
We can then say:
x + 375 = 1500
x = 1500-375
x = 1125
She initially invested $1125
I hope this help
Select the correct answer from each drop-down menu.
In ABC, AD/DE = CE/EB. Complete the proof showing that DE is parallel to AC. (Plato)
Answers
Answer:
corresponding
Step-by-step explanation:
Please help me! I will give brainly!
Question,
Reasoning Explain how you can tell which product is greater without multiplying or estimating.
3.75 x 922 37.5 x 9.22
Question,
Modeling Real Life Nutritionists recommend that fifth-graders should consume about 5 ounces of protein each day. One serving of yogurt contains 0.6 ounce of protein. You eat 2.5 servings of yogurt in 1 day. Do you consume enough protein for the day by eating yogurt?
Yes or No
Explain why
Answers
The second one 6*2.5=1.5 ounces which is 3.5 ounces too little.
Answer:
Question 1. 3.75 x 922
Step-by-step explanation:
for question 1 if u noticed that they both have the same numbers in the same order the only difference is where the decimal point is placed. First u need to anylase both equations to do that u need to look at 922 and 9.22 not the 3.75 and 37.5 because the decimal point doesn't justify anything. So you see 922 is bigger than 9.22. So the answer is 3.75 x 922.
Vladimir has 64 coins of .25 cents and 56 coins for .50 cents. What is the greatest number of identical packs of coins with no coins left over? Be sure to show you work
Answers
Answer:
56 coins for 0.50 cents
Step-by-step explanation:
A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test. The table shows the data:
Number of hours spent studying
(x) 0 0.5 1 1.5 2 2.5 3 3.5 4
Score on science test
(y) 57 62 67 72 77 82 87 92 97
Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer. (4 points)
Part B: Write a function that best fits the data. (3 points)
Part C: What does the slope and y-intercept of the plot indicate? (3 points)
Answers
Answer: From the table we see there is a relation between x and y values
Every step change of x = 0.5, every step change of y = 2
This relation is linear. The formula for linear function is:
y = mx + b
Using to pairs of points to get the slope and y-intercept
(0, 60) and (1, 64)
Calculating the slope:
m = (64 - 60)/(1 - 0) = 4/1 = 4
y - intercept is 60 as per point (0, 60)
So the function is
y = 4x + 60
Part A
Yes. Described above
Part B
y = 4x + 60
Part C
Slope is the steepness of the line.
y -intercept is the lowest score with no time spent studying
HOPE I HELPED ! Have a great day :)
The number of hours students spent studying and the score on the science test are in linear correlation , a function that best fits the data is y = 4x + 60 and the slope and y-intercept of the plot indicate that y -intercept is the lowest score with no time spent studying
Linear CorrelationLinear Correlation is a measure of the degree to which two variables vary together, or a measure of the intensity of the association between two variables.
What are the steps to solve this problem?The steps are as follow:
We can see there is a relation between x and y values that for every step change of x = 0.5, every step change of y = 2So the relationship is linearBy using to pairs of points to get the slope and y-intercept (0, 60) and (1, 64)And Calculating the slope:m = (64 - 60)/(1 - 0) = 4/1 = 4
y - intercept is 60 as per point (0, 60)So the function is y = 4x + 60The slope and y-intercept of the plot indicate lowest score with no time spent studyingSo, the number of hours students spent studying and the score on the science test are in linear correlation , a function that best fits the data is y = 4x + 60 and the slope and y-intercept of the plot indicate that y -intercept is the lowest score with no time spent studying
Learn more about Linear Correlation here:
https://brainly.com/question/4025726
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help please please please please ASAP
Answers
Answer: 46 yds².
Step-by-step explanation:
Find the area of all surfaces & add them up:
(5 · 3) + (5 · 3) + (1 · 3) + (1 · 3) + (1 · 5) + (1 · 5) = 15 + 15 + 3 + 3 + 5 + 5
= 30 + 6 + 10 = 36 + 10 = 46 square
Answer:
46 yd^2
Step-by-step explanation:
The surface area is
SA = 2 ( lw + wh + hl ) where h is height , l is length and w is width
SA = 2( 1*5 + 5*3 + 3*1)
= 2 ( 5+15+3)
= 2( 23)
= 46 yd^2
Question 2 (1 point)
Luis and Jorge are exercising. Luis does 10 push-ups at the same time as Jorge does 15 push-ups. When
Luis does 40 push-ups, how many push-ups does Jorge do?
Answers
Answer:
Jorge does 45 push-ups
Step-by-step explanation:
Why? Beacuse everytime luis does a push up it the same thing as Jorge but just five more so 40 plus 5 is 45 thats how i got my answer.
The graph shows the number of gallons of white paint that were mixed with gallons of blue paint in various different ratios:
The title is Mixing Paint. The horizontal axis label is Blue Paint in gallons. The scale is 0 to 16 in increments of 2. The vertical axis label is White Paint in gallons. The scale is 0 to 32 in increments of 4. Plot points at the ordered pairs 2,4 and 4,8 and 6,12.
The number of gallons of white paint mixed with 1 gallon of blue paint is _____
Answers
Answer
1/2 gallon, 0.5 gallons
Explanation:
The amount of blue paint is always half the amount of white paint.
Answer:
d
Step-by-step explanation:
answered the picture shows the graph of the movement of the pedestrian and the bicyclist using the graph answer the following questions
https://homework.russianschool.com/resource?key=16643imdkylod
Answers
Answer:
Answer: Wheref(the) is the distance in kilometers and the input the is the time in hours
BC f(t) = -5t + 40
CD f(t) = 20. Or f(t)= -20(t/t)+40 OR f(t) = 0t + 20
DE f(t) = -5(t-2) + 40
Step-by-step explanation:
The negative slope means that the distance is decreasing by 5 km/hr when there is movement. Between hours of 4 and 5, the slope is 0, but the distance remains constant at 20. All the options for CD are strange. But they describe the line segment in the graph.
Plug in the values of the hours to check.
Step-by-step explanation:
Rewrite 18y x 4x using the Commutative Property.
Answers
the commutative property states the change in the order of numbers in an addition or multiplication operation does not change the sum or the product. The commutative property of multiplication can be written as A * B = B * A ;)
please help me with these 2 questions will give brainly!
1 . Which integer represents the following: –(–28)?
28
-28
2. Which integer represents the following: –(–(–65))?
-65
65
Answers
Answer:
1. 28
2. -65
Step-by-step explanation:
The rule I learned, was that if there is an even number of negative signs, the outcome is positive. If there is an odd number of negative signs, the outcome is negative.
In the first question, we have 2 negative signs. So the outcome is positive. 28 is positive.
In the second, we have 3 negative signs, so the outcome is negative. -65 is negative.
I hope this helps!
Answer:
28, -65
Step-by-step explanation:
Which graph represents a linear function?
Answers
form a phythogorean triplet using the following numbers
7,11,6,13
Answers
(01.02 HC)Morris is showing his work in simplifying (−6.7 + 4.3) − 1.2.
Step 1: (4.3 − 6.7) − 1.2
Step 2: 4.3 − (6.7 + 1.2)
Step 3: 4.3 − (7.9)
Step 4: −3.6
Which statement is true?
In step 1, Morris used the commutative property.
In step 2, Morris used the distributive property.
In step 3, Morris used the associative property.
In step 4, Morris's answer is incorrect.
Answers
Answer:
In step 3, Morris used the associative property.
Explain: key work ASSOCIATIVE
how did the temperature change if at first it increased by 60 and then decreased by 80
Answers
Answer:
Step-by-step explanation:
+25-80=-55
therefore there was a -55˚ change from the og temp
Answer:
-20/dropped 20 degrees
Step-by-step explanation:
60-80 = -20 (or, it dropped 20 degrees)
Which property can be used to expand the expression -2 (3/4x + 7)
Answers
Answer:
distributive property
Need help with these fraction questions
grade 6 work
Answers
WILL MARK BRAINLIEST!!!
Line A: x + y = 2
Line B: 2x + y 4
Which statement is true about the solution to the set of equations?
a. infinitely many solutions
b. two solutions
c. one solution
d. no solution
Answers
Answer:
(C. one solution
Step-by-step explanation:
hope this helps
HELP! PLEASE SOLVE. lol
Answers
Answer:
2, 2, 4, 8, 14, 22, 32, 44
solve for x
4= tx
gh= 7x
2d + x = w
Answers
Answer:
Step-by-step explanation:
(a) We are to solve 4 = tx for x. Isolate x by dividing both sides by t:
tx 4
---- = ----
t t
This yields the formula x = 4/t
(b) If gh = 7x and we want a formula for x, we divide both sides by 7 to isolate x:
gh 7x
------ = ----- or x = gh/7
7 7
(c) To solve 2d + x = w for x, subtract 2d from both sides. We get:
x = w - 2d
Write the expression as an exponent with a base 2 and find its value:
2^4*2
Answers
2^6
Step-by-step explanation:
8^2=8×8
=2×2×2×2×2×2
=2^6
“Model a desert community where 60% is houses, 10% is shops, and 30% is parks.”
Answers
Answer:
house are 60 squares
shops are 10 squares
and parks are 30 squares
I think because it can be a wrong answer
any way best of luck
