Answers
Related Questions
Solve and check:
y = x + 4
y = 3x
Answers
Answer:
X=2
Step-by-step explanation:
3x = x + 4
3x - x = 4
2x = 4
x = 4/2
x = 2
Check:
3(2) = 2 + 4
6 = 6
If f(x) = 3x - 2 then what is f(10)?
Answers
Answer:
f(10) = 3(10) - 2 = 28
Step-by-step explanation:
-3x-8>19?I have to solve for x
Answers
Answer:
x < -9
Step-by-step explanation:
Add 8 to both sides:
-3x - 8 > 19
-3x > 27
Divide each side by -3:
-3x > 27
Dividing by a negative number on each side switches the inequality:
x < -9
So, the answer is x < -9
Answer:
[tex] \huge \: x < - 9[/tex]
[tex]\huge \: x \in (-∞,-9)[/tex]
Step-by-step explanation:
to understand thisyou need to know about:inequalityPEMDASgiven:[tex]-3x-8>19[/tex]tips and formulas:the direction of inequality doesn't change when you
Add (or subtract) a number from both sidesMultiply (or divide) both sides by a positive numberSimplify a sidethe direction of inequality does change when you
Multiply (or divide) both sides by a negative numberSwapping left and right hand sideslet's solve:[tex]step - 1 : define \\ -3x-8>19[/tex]
[tex]step - 2 : \\ add \: 8 \: to \: both \: sides[/tex]
[tex]-3x-8 + 8>19 + 8[/tex]
[tex] - 3x >27 [/tex]
[tex]step - 3 \: \\ divide \: both \: sides \: by \: - 3 \: and \: swap \: the \: inequality[/tex]
[tex] \huge \therefore \: x < - 9[/tex]
Straight white mail hate myself im so mad cause my skin so pale.
what this song
Answers
Answer:
is it never gonna give you up by official rick astley
The citizens of a city were asked to choose their favorite type of pet. The circle graph shows how the citizens answered. If 60,000 citizens answered the
question, how many chose Dog?
Cal
Fish
15%
Hamster
696
Dog
26%
Snake
9%
0
Х
5
?
Cat
21%
Bird
23%
Answers
Answer:
16000
Step-by-step explanation:
I rlly need help and the operation bby plssssss help me
Answers
Answer:
∠ AFE = 35°
Step-by-step explanation:
∠ EFD = ∠ BFC = 55° ( vertically opposite angles )
Since BD is a straight line , then
∠ EFD + ∠ AFE + AFB = 180°, that is
55° + ∠ AFE + 90° = 180
∠ AFE + 145° = 180° ( subtract 145° from both sides )
∠ AFE = 35°
The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters.
What is the volume of the pyramid in cubic centimeters?
Answers
Answer:
volume = 13500 [tex]cm^{3}[/tex]
Step-by-step explanation:
For a given pyramid, its volume can be determined by:
volume of pyramid = [tex]\frac{lwh}{3}[/tex]
Where: l is the base length, w is the base width and h id the height of the pyramid.
For the given question, l 30 cm, w = 30 cm and h = 45 cm.
So that,
volume = [tex]\frac{30*30*45}{3}[/tex]
= [tex]\frac{40500}{3}[/tex]
= 13500
volume = 13500 [tex]cm^{3}[/tex]
The volume of the pyramid is 13500 [tex]cm^{3}[/tex].
The volume of the square-based pyramid is [tex]13500cm^3[/tex]
The volume of a pyramid is given by
[tex]V=\dfrac{Ah}{3}[/tex]
where
[tex]A=\text{area of the square base}\\h=\text{perpendicular height}[/tex]
The area of the square base, [tex]A[/tex], is calculated as follows
[tex]A=side^2\\=(30cm)^2\\=900cm^2[/tex]
substitute the value of [tex]A[/tex], and [tex]h[/tex] ([tex]45cm[/tex]) into the volume formula to calculate the pyramid's volume
[tex]V=\dfrac{Ah}{3}\\\\=\dfrac{900\times 45}{3}\\\\=13500cm^3[/tex]
Therefore, the volume of the pyramid is [tex]13500cm^3[/tex]
Learn more about volume of pyramids here: https://brainly.com/question/1260835
The price of nails, n, is $1.29/lb. The price of washers, w, is $0.79/lb. The price of bolts, b, is $2.39/lb.
Section a .Write an expression to represent the total price of the supplies
Section b. What is the total cost of buying 2 pounds of nails, 4 pounds of washers and 3 pounds of bolts?
Answers
Answer: 1.29n + 0.79w + 3.39b is the expression.
The total cost is $12.91
Step-by-step explanation: Substitute the number of pounds for each given supply. Multiply to get the individual amounts, then add all of those amounts to find the total cost.
1.29(2) + 0.79(4) + 2.39(3) = total
2.58 + 3.16 + 7.17 = 12.91
Answer:
1.29n + 0.79w + 2.39b
1.29(2) + 0.79(4) + 2.39(3) =
2.58 + 3.16 + 7.17 = $12.91
Step-by-step explanation:
Find 4% of 1275- I couldn’t seem to figure this one out for some reason I dunno
Answers
Answer:
51
Step-by-step explanation:
4% as a decimal is 0.04, so you can just do 0.04 * 1275 = 51.
Answer:
-51
Step-by-step explanation:
ree
The ____ is the distance across a clrcle, going through the center.
radius
circumference
area
diameter
Answers
Answer: diameter
Step-by-step explanation:
Answer:
The Diameter
Step-by-step explanation:
:)
The cylinder shown here has a height of 7 centimeters and a radius of 4 centimeters. What is the area of the base of the cylinder? Express your answer in terms of 1. Do not include units (cm2) in your answer. Use pi to represent the n symbol. For example: 321 would be typed as 32pi
Answers
Answer: 16pi
Step-by-step explanation:
What is the slope of the graphed line?
Answers
Answer:
3/9
Step-by-step explanation:
3/9 because it goes up 3 right 9
Question 5
1 pts
A 5 1/2 pound ham will serve 11 people. How many people will a
10-pound ham
serve? Set up a proportion and solve.
I
Answers
Answer:
intake manifold gasket :)
Step-by-step explanation:
it's pretty obvious.
answer:20
step by step: 4 1/2 feeds 9 people so just add
What is (56)(91)x -17
Answers
You really good
I NEED HELP! PLZ! 20 POINTS. :)
Answers
Answer: i have no clue?
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
100 = 2x + 4y > 100 = 2x+40 > 60 = 2x> x = 30
Justin is working with a microscope that magnifies objects to 175 times their actual size.
Part A
Enter a number in each box to determine the scale factor for the microscope.
Part B
The diameter of an amoeba cell is 0.30 millimeter. How big will the cell appear to Justin under the microscope?
millimeters
Part C
What is the percent increase of the area of the amoeba cell under the microscope?
%
Answers
Answer:
Part A
Scale factor
= 1 : 175
Part B
52.5 mm
Part C
99.4%
Step-by-step explanation:
Justin is working with a microscope that magnifies objects to 175 times their actual size.
Part A
Enter a number in each box to determine the scale factor for the microscope.
= 1 : 175
Part B
The diameter of an amoeba cell is 0.30 millimeter. How big will the cell appear to Justin under the microscope?
Scale factor =
1 : 175
Diameter of the Amoeba cell = 0.3mm
1mm = 175 mm
0.3mm = x
Cross Multiply
x = 0.3 × 175
x = 52.5 mm
Part C
What is the percent increase of the area of the amoeba cell under the microscope?
Increase = 52.5 mm - 0.3mm
= 52.2 mm
Percent increase
= 52.2/52.5 × 100
= 99.4%
A. There are 300 fish in a pond. 50 fish are tagged. If you catch one fish out of the pond, what is the probability that your fish is tagged? Write your answer in a fraction and a decimal. Explain and show your work.
B. Suppose you catch 100 fish out of this pond. How many of these fish would you expect to be tagged? Explain.
Answers
Answer:
B. 50
Step-by-step explanation:
Answer:
The probability is 16.6%
And if you catch 100 fish, you should expect at least 17 of them are tagged.
Step-by-step explanation:
Let A be the event of catching a tagged fish:
[tex]P(A) = \frac{50}{300} = \frac{1}{6} = 0.166[/tex]
Now if you catch 100 fish, each one has the probability of 1/6 and each event is independent of the other.
[tex]N = \frac{1}{6} * 100 = 16.6[/tex]
5) Write the slopes of a line parallel and perpendicular to the line y= -2/5x+6 (Hint: 2 answers) 1 What is current aradan
Answers
Answer:
Step-by-step explanation:
Parallel: -2/5
Perpendicular: 5/2
Zack gets paid $8 an hour to babysit. The amount of money he earns depends on the number of hours he babysits.
Which is the dependent variable, and which is the independent variable
Answers
Answer:
$8 is the independent variable. The amount he earns is the dependent variable.
Step-by-step explanation:
No matter what he is making $8 an hour is a constant. While how much he makes is dependent on how much he works.
X + 5x - 6 < 12 solve for inequality
Answers
Answer:
7
Step-by-step explanation:
x+5x<12
x+5x=12
12-5x
=7
7 divide by 1
=7
What is the slope of the line (-4,-1) (1,4)
Answers
Answer:
1
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
yes what do you need help with
Jordyn made some bracelets and sold them at a craft fair for $8 each. She paid $50 in
materials and fees. Jordyn's profit after the fair was $310. She wants to know how
many bracelets she sold.
Answers
Answer:
38
Step-by-step explanation:
because when u divide it
Beatriz makes a conjecture that the sum of two odd integers is always an even integer. Which choice is the best proof of her conjecture? PLEASE QUICKK
Answers
Answer:
C
If the side of a square, a, is an odd number, then the perimeter of the square is an even number, b.
12 = 3 (g - 1)
Options are:
5
3
-5
-3
Answers
Answer:
It's 5.
Step-by-step explanation:
substituting g = 5 into the equation,
12 = 3(5 - 1)
12 = 12
state if polygons are similar
Answers
Answer:
B
Step-by-step explanation:
Solve 5n +3>27
sorry I’m not the best at maths so simple stuff like this makes my brain buffer
Answers
x+0.5y=1.5 solve for y
Answers
Answer:
Y = 3 - 2x
Step-by-step explanation:
Mr Lee has a family of 6 people and Mrs Scarlett has a family of 4. They were given 15 kg of chocolate
when they visited a chocolate factory for work. If they decide to share it so that each family
member gets an equal amount, determine the required ratio and hence calculate how much
chocolate Mr Lee and Mrs Scarlett will each take home to their families.
Answers
Answer:
Mr Lee gets 9kg
Mrs Scarlett gets 6kg
Step-by-step explanation:
First, we have 15kg of chocolate and a total of 6 + 4 = 10 people.
We want to divide the 15kg of chocolate evenly between these 10 people, then we just need to do the quotient
15kg/10 = 1.5kg
This means that each person gets 1.5 kg of chocolate.
Now, Mr. Lee has a family of 6 people, and each one of these 6 people got 1.5 kg of chocolate, then the total amount of chocolate that Mr. Lee will bring home is 6 times 1.5kg:
6*1.5kg = 9kg
And Mrs Scarlett will get the remaining, that is:
15kg - 9kg = 6kg
Mrs Scarlett will get 6kg of chocolate.
Solve 7+2x over 3 = 5
Please and thank you! x
Answers
Answer:
x = 4
Step-by-step explanation:
(7 + 2x) / 3 = 5
Cross product
7 + 2x = 5 * 3
7 + 2x = 15
Subtract 7 from both sides
2x = 15 - 7
2x = 8
Divide both sides by 2
x = 8/2
x = 4
What is the probability of the compound event of spinning a 3 on a 5 number spinner and landing on tails with a coin.
Answers
Answer:
1/10
Step-by-step explanation:
1/5 to land on the spinner, and 1/2 to land on tails. Compound prob = we gotta multiply the probabilities so we get 1/10
