Answer:
Step-by-step explanation:
j+47 = 55
j = 55-47
j = 8
Answer: 8
Step-by-step explanation:
Sum means addition so j is a number that equals 55 when added to 47. So what you do is subtract 47 from 55 to give you j. 55-47 is 8 so j is 8.
Please help me! I will give brainly
Question 1
An ear of corn has about $16$ rows of kernels. Each row has about $50$ kernels of corn.
a. About 0.2 of the kernels are white and the rest are yellow. How many kernels are yellow?
____ kernels
Question 2
b. Each ear of corn has about $0.25$ pound of corn kernels. How many pounds of kernels are in a dozen ears of corn?
_____pounds
Answer:
a. 640 kernels
b. 3 pounds
Step-by-step explanation:
a:
Total kernels = 16 * 50 = 800
White kernels = 800 * 0.2 = 160
Yellow kernels = 800 * 0.8 = 640
b:
1 ear weight = 0.25 pounds
12 ears weight = 12 * 0.25 = 3 pounds
a. The number of kernels which are yellow is 640.
b. The amount of kernels will be 3 pounds.
An expression is a combination of symbols, variables, numbers, and operators that represents a value or a computation. It can consist of constants, variables, and mathematical operations such as addition, subtraction, multiplication, division, exponentiation, and more.
Expressions can be simple or complex, involving multiple terms and operations. They are commonly used in mathematics, computer programming, and symbolic logic to represent calculations, equations, and relationships between quantities.
a:
Total kernels = 16 x 50 = 800
White kernels = 800 x 0.2 = 160
Yellow kernels = 800 x 0.8 = 640
b:
1 ear weight = 0.25 pounds
12 ears weight = 12 x 0.25 = 3 pounds
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Choose the correct equation. Then solve the equation.
A sales representative earns weekly base salary of $250 and a commission of 8% on her weekly sales. (A commission is money earned that equals a percent of the sales.) At the end of one week, she earned $410. How much did she sell that week? Let s represent the total sales.
A. 250 + 0.08s = 410
B. 250 + 410 = 0.08s
Johnny rode his bicycle down a hill. It took him 15 seconds to ride from the top of the hill to the bottom of the hill. The equation h = -3t + 45 models his height, h, in feet, above the bottom of the hill as a function of the time, t, in seconds, after he started riding down the hill. Part A: What is the average rate of change in Johnny’s height? Part B: What is the height of the hill? Part C: How long will it take Johnny to travel 1/3 of the distance down the hill?
From the height function, we get that:
a) The average rate of change is of -3 feet per second.
b) The height of the hill is of 45 feet.
c) It will take Johnny 5 seconds to travel 1/3 of the distance down the hill.
-------------------------------
The height, after t seconds, is given by:
[tex]h(t) = -3t + 45[/tex]
-------------------------------
The height of the hill is [tex]h(t)[/tex] when [tex]t = 0[/tex], thus [tex]h(0) = -3(0) + 45 = 45[/tex]. 45 feet, which means that the the answer for option B is 45 feet.-------------------------------
Item a:
The initial height is of 45 feet, at [tex]t = 0[/tex] seconds.The final height is of 0 feet, at [tex]t = 15[/tex] seconds.Thus, the average rate of change is given by:[tex]A = \frac{0 - 45}{15 - 0} = -\frac{45}{15} = -3[/tex]
The average rate of change is of -3 feet per second.
-------------------------------
Item c:
One-third of the distance of 45 feet is [tex]\frac{1}{3}45 = 15[/tex] feet, thus, we have to find the time at which he is at 30 feet, that is, t for which [tex]h(t) = 30[/tex][tex]h(t) = -3t + 45[/tex]
[tex]30 = -3t + 45[/tex]
[tex]3t = 15[/tex]
[tex]t = \frac{15}{3}[/tex]
[tex]t = 5[/tex]
It will take Johnny 5 seconds to travel 1/3 of the distance down the hill.
A similar problem is given at https://brainly.com/question/20732437
what is the gradient?
Answer:
[tex]{ \tt{gradient = \frac{ - 3 - 1}{0 - ( - 1)} }} \\ = \frac{ - 4}{1} \\ = - 4[/tex]
Answer:
The gradient (slope) is -4.
Step-by-step explanation:
Note that two points on the graph through which the blue line passes exactly are (-2, 5) and (0, -3). As we move from the first point to the second, x increases by 2 (the 'run') and y (the 'rise') decreases by 8. Thus, the gradient, or slope, of this line is m = rise/run = -8/2, or m = -4.
MacKenzie surveys 80 of her classmates and finds that 65% of them like sports. She also finds that 75% of her 64 relatives like sports. How many more of her classmates like sports as compared to her relatives? Pls help
Answer:
65%×80=52
(80-52=28) no of classmates who liked sports
75%×64=48
(64-48=16) no of relatives who liked sports
no of classmates who liked sports - no of relatives who liked sports
= 28-16 = 12
Hence, 12 more of her classmates like sports as compared to her relatives
There are total 4 more of her classmates like sports as compared to her relatives.
What is the Percentage?The Latin phrase "per centum," which means "by the hundred," is where the English word "percentage" comes from. Percentage segments are those with a numerator of 100. In other words, it is a connection where the whole is always deemed to be valued 100.
As per the information given in the question,
Total number of students surveyed = 80
Percentage of students who like sports = 75%
So,
(80 × 65)/100
= 5200/100 = 52
Total number of Relatives = 64
Percentage of relatives who like sports = 75%
So,
(64 × 75)/100
= 4800/100 = 48
Then, the number more of her classmates like sports compared to relatives will be:
52 - 48
= 4
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Can someone please help me with this question I need to find the unit rate.
First we have to take any point, I'll take (5,3).
X-axis represents number of pounds and y-axis represents total cost (in $).
So, 5 pounds = $3
=> 1 pound = $3/5
=> 1 pound = $0.6
=> 1 pound = 60 cents
Answer:
60c per pound.
Step-by-step explanation:
If 5lbs cost 3 dollars, 1lb = 3/5
3/5 = 0.6$
60c
Which coordinate grid shows Point A at (0.25, −1.75)?
Step-by-step explanation:
If possible, please provide a picture otherwise we do not know what to answer. First move 0.25+ along the x axis, then -1.75 in the y direction. it should look like this
PLEASE HELP
Write an equivalent expression for -5x+3×2.5x
Answer:
2.5x
Step-by-step explanation:
-5x+3*2.5x
Multiply
-5x+7.5x
Combine like terms
x(-5+7.5)
2.5x
Figure A is a scale image of Figure B.
whas the value of x?
Can Some1 Tell Me the answer?
Answer: D
Step-by-step explanation:
Answer: D(2.8a-12a-3.6
hope that helped <3
Which expression is equivalent to 16.8−18.6
A.18.6-16.8
B.16.8-(-18.6)
C.-18.6+(-16.8)
D.16.8+(-18.6)
Answer:
D is your answer16.8+(-18.6)OAmalOHopeO
Quadrilateral
A
R
M
Y
ARMYA, R, M, Y is rotated
9
0
∘
90
∘
90, degrees about the origin.
Answer:
See explanation
Step-by-step explanation:
From the question, we understand that the quadrilateral is rotated by 90 degrees about the origin.
The question is incomplete; so, I will give a general explanation.
The rule for 90 degrees rotation about the origin is:
[tex](x,y) \to (-y,x)[/tex]
For instance:
A point (4,6) will become (-6,4) after rotation.
please help me answer this question quickly
Answer:
A and D is true.
(see how to solve in pic)
Please answer this question will give brainiest please answer
Answer:2 and 3
Step-by-step explanation:
Olivia pays $189 for a painting, including tax.
If the actual price is $179.50, what is the sales tax rate?
The sales tax rate = 5.29%
What is the formula for tax rate?"Tax rate = (Tax amount / Price before tax) × 100% "
What is the formula for tax amount?"Tax amount = Final price - Price before tax"
For given question,
Olivia pays $189 for a painting, including tax.
⇒ Final price = $189
The actual price of the painting is $179.50
⇒ Price before tax = $179.50
Using the formula of tax amount,
⇒ Tax amount = Final price - Price before tax
⇒ Tax amount = 189 - 179.50
⇒ Tax amount = 9.5
Now we find the sales tax rate.
Using the formula of tax rate,
⇒ Tax rate = (Tax amount ÷ Price before tax) × 100%
⇒ Tax rate = [tex]\frac{9.5}{179.50} \times 100~\%[/tex]
⇒ Tax rate = 5.29%
Therefore, the sales tax rate = 5.29%
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Name the property shown by each statement:
(commutative, associative, identity, or multiplicative property of zero)
1. 7 + 10 = 10 + 7
2. 4 • 1 = 4
3. 10 + 8y = 8y + 10
Answer:
1. commutative
2. identity
3.multiplicative
hope it helps^-^
Answer:
1. commutative
2. identity
3.multiplicative
Step-by-step explanation:
Neelam’s team had a mean score of 150 in the 4 games his team played this season. Alanoud’s team had a mean score of 80 in the 6 games her team played. What is the mean score for all 10 games played?
Answer:
115
Step-by-step explanation:
The mean score for all 10 games played is 108 if Neelam’s team had a mean score of 150 in the 4 games his team played this season.
What is mean?It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.
We have:
Neelam’s team had a mean score of 150 in the 4 games his team played this season.
Total score(Neelam's team) = 150×4 = 600
Total score(Alanoud’s team) = 80×6 = 480
Total scores = 600 + 480 = 1080
Mean score for all 10 games:
= 1080/10
= 108
Thus, the mean score for all 10 games played is 108 if Neelam’s team had a mean score of 150 in the 4 games his team played this season.
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HELP QUICK.
The problem solving plan identifies the letter W as "What do you need to do to solve the problem?" Which of the following answer choices are included in the problem solving plan for the letter W? A. Solve the problem and change your strategy if necessary. B. Did you check the answer and did you answer the question asked. C. Read the problem carefully, find the question, understand the problem and find out what you know. D. Organize the problem and find the question.
Answer:
c
Step-by-step explanation:
Hey can someone help with this problem!?
Answer:
5 spaces
2×(-5)=-10
Answer=10
Step-by-step explanation:
Answer:3
Step-by-step explanation:
looks like 3
Question 1
Click the refresh button until you get a right triangle with A as the right angle. Fill in the fraction forms of sin B, cos B, tan B and then the
associated measure of B using sin^-1, cos^-1, and tan^-1, rounded to three decimal places each. Then fill in the fraction forms of sin C, cos C, tan C, and the associated measure of C using sin^-1, cos^-1, and tan ^-1 rounded to three decimal places.
x=width of pool
2x=length of pool
the dimensions of the rectangle forming the walkway and the pool are x+4 and 2x+4
the area of this rectangle minus the area of the pool is 196 square feet
(2x+4)(x+4)-(x)(2x)=196
2x^2+4x+8x+16-2x^2=196
combine similar terms
12x+16=196
12x=196-16
12x=180
x=180/12
x=15 feet is the width of the pool
check: 34*19-30*15=196
646-450=196
196=196
Answer:
Step-by-step explanation:
!PLEASE EXPLAIN IT EASY SO I UNDERSTAND IT!
Elliot has been running a lawn care business since 2000. He cuts grass, trims, and weed whacks yards for his customers throughout the season. Each year, he has increased his fee by the same amount. The table shows what Elliot charged each customer for two given years of his business:
Year Lawn Care Fee
2000 $750
2010 $1350
A. What is the rate of change and initial value for Elliot’s business? How do you know?
B. Write an equation in slope-intercept form to represent the fees that Elliot charges each year.
Answer:
Rate of Change: $60 Per year
Step-by-step explanation:
We can find how many years are from 2000 to 2010 not overcouting. That is 10. Now, we do 1350 minus 750 because that's the change of the fee. That will give you 600. Now, 600 divided by 10, giving you how much change each year. That's 60.
So,
2000:750
2001:810
2002:870
2003:930
2004:990
2005:1050
2006:1110
2007:1170
2008:1230
2009:1290
2010: 1350
You can graph it out with that, now.
I’ll mark brainliest
Which problem solving strategy would be best to solve this problem? Avelina earned half as much money as Gus. If Gus earned $125.00, how much money did Avelina earn? A. write an equation B. make a table, chart or list C. compute or simplify D. guess, check and revise
Answer:
a...............
Step-by-step explanation:
125.00 ÷ 2
11 and 14 please!! I’ll give Brainlist please
Answer:
11. p-(780/6) or p-130
14. 12
Step-by-step explanation:
11. 780/6 because there are 6 people so we split it evenly.
14. 24/2 = 12
Question 4
<
>
B0/1 pt 53
Write a polynomial in standard form that has the following characteristics.
leading coefficient: -1/3
zeros: 0,9, -21, -3
Answer:
-(x^5)/3+2x^4+(23/3)x^3+8x^2+36x
Step-by-step explanation:
The polynomial is - 1/3(x-9)(x)(x-2i)(x+2i)(x+3)=-(x^5)/3+2x^4+(23/3)x^3+8x^2+36x
The expression (F - 32) • 5/9 can be used to convert a temperature from Fahrenheit to Celsius.
1. Find the temperature in Celsius if it is 50°F.
2. Find the temperature in Celsius if it is -10°F.
Answer:
1.) 10
2.) 14
Step-by-step explanation:
Express the extended fraction at the right as a simple fraction in lowest terms.
Answer: 5/2
Yes it has to be 5/2
Answer:
5/2
Step-by-step explanation:
questions
solve for k.
4m+5k=3t
solve for b.
a/7 + b/3 = x/21
Please answer my question and explain it.
================================
Work Shown:
4 1/2 = 4 + 1/2 = 4 + 0.5 = 4.5
In short, 4 1/2 cups is the same as 4.5 cups
---------
1 cup = 8 fluid ounces
4.5*(1 cup) = 4.5*(8 fluid ounces) ....... multiply both sides by 4.5
4.5 cups = 36 fluid ounces
Answer:
D
Step-by-step explanation:
please help me answer for this quickly
What is 1/2[4x + 6(2 + 2x)]
Answer:
8x+6
Step-by-step explanation:
1/2[4x + 6(2 + 2x)]
Work inside out
Distribute inside
1/2[4x + 12 + 12x)]
Combine like terms
1/2[16x +12]
Distribute
8x+6
[tex]\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}[/tex]
[tex]\sf{\dfrac{1}{2}[4x+6(2+2x)] }[/tex] [tex]\sf{\dfrac{1}{2}[4x+12+12x] }[/tex] [tex]\sf{\dfrac{1}{2}[16x+12] }[/tex] [tex]\sf{\dfrac{1}{2}[2(8x+6)] }[/tex] [tex]\sf{\dfrac{1}{\cancel{2}}×\cancel{2}(8x+6) }[/tex] [tex]\sf{ 8x+6 }[/tex][tex]\sf{ }[/tex]
