Mathematics Middle School

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Question
Write a proportion to find how many points x a student needs to score on a test worth 50 points to get a test score of 78%

Answers

Answer 1

Answer:

78% of 50 points = 0.78 x 50 Step-by-step explanation:

Answer 2

Answer:

0.78 x 50

Step-by-step explanation:

78% is of 1 so it can be rewritten as 0.78.

Related Questions

help me! ill give 20 points

Answers

Answer:22

Step-by-step explanation:

Answer:22

Step-by-step explanation:

2t + 4s

If t = 5 then its 2*5 which is equal to 10 and then s is equal to 3 to its 4*3 which is 12 so u get 10+12 which is 22

Find the area of each composite figure.

Answers

Answer:

Square : 320

Semicircle: 32π

Total Area: 320 + 32π

Step-by-step explanation:

The rectangle is 16 x 20 = 320.

We know the semicircle's diameter is 16, so the radius is 8.

the area of a semicircle is [tex]\frac{1}{2}\pi r^2[/tex]

the radius is 8, we plug that in to get:

[tex]\frac{1}{2}\pi (8^2)\ = \frac{1}{2}\pi (64) = 32\pi[/tex]

The area of the total shape is 320 + 32π

Answer:

320+32π

Step-by-step explanation:

Let's find the rectangle by multiplying both sides.

16*20=320

Let's find the radius of the semi-circle:

16:2=8

Let's find the area of the circle and divide it by two:

The formula for the area of the circle is πr². r is the radius. Now we can plug in the information we have.

8²*π=64π

64π is the whole circle but we only need half of the circle, so we divide by 2.

64π/2=32π

We can now add the two areas in order to get the area of the full figure.

320+32π

Write a different equation with FOUR numbers whose sum equals 0, none of which are opposites.

Answers

Answer:

5+5+-3+7

Is this what you looking for

what is the area of a rectangle with a length of 3 mm and a width of 5.4mm.

Answers

Answer:

16.2 mm^2

Step-by-step explanation:

area = length x width

area = 3mm x 5.4 mm

area = 16.2 mm^2

The area is equal to 16.2

please help me with this question i think someone else answered and they misread or didnt understand the question so i am reposting

Answers

Answer:

2  2/9 i think

Step-by-step explanation:

There is no answer beyond this. I tried a computer system and it said no solution.

i need help w this ! whoever answers correctly gets brainliest

Answers

Answer:

with what there is nothing

Step-by-step explanation:

Answer:

You need to post it because it's not there

Choose the solution to this inequality 4/3 < - 8/3y


A. ( y < -1/2)

B. (y > 1/2)

C. (y > 4/3)

D. (y > 4)


Please help I need this by 11:59 p.m

Answers

The answer is B your welcome

Help pls no joking around PLEASE HURRY

Answers

Answer: ?

Step-by-step explanation: it's too hard and too much waset of time.

Draw a line to match each real world problem with the expression that can be used to solve it.

Lily has 32 ounces of orange Juice. if this is 10% more than sav, how much orange juice does sav have?

Danie is purchasing a new video game controller. After a discount of $32 the cost of the controller is $32. what was the original cost of the controller?

Answer Choices:

A) 0.9x =32
B) 0.1x =32
C) 1.1x=32

Answers

Answer:

Lily has 32 ounces of orange Juice. if this is 10% more than sav, how much orange juice does sav have?

Answer =   0.9x =32 and 0.1x=32

Danie is purchasing a new video game controller. After a discount of $32 the cost of the controller is $32. what was the original cost of the controller?

Answer = 1.1x=32

C i hope this helps you

A pencil costs $0.25 more than an eraser. If the cost of eight pencils is $6.80, what is the cost of one eraser?

Answers

6.80/8 = 0.85 + 0.25= 1.10
The eraser would cost 0.60
Because 6.8/8 =0.85-0.25=0.60!!!
Hope this helped

I need help thank you

Answers

Answer:

The area is 252

Step-by-step explanation:

(4x +4)(x - 1) = (Hope it helps)

PLEASE HELP ASAP!!!!!!!!!
Segment AB has point A located at (5, 4). If the distance from A to B is 7 units, which of the following could be used to calculate the coordinates for point B? (5 points)
a- 7 = square root of the quantity of x plus 4 all squared plus y plus 5 all squared
b- 7 = square root of the quantity of x plus 5 all squared plus y plus 4 all squared
c- 7 = square root of the quantity of x minus 4 all squared plus y minus 5 all squared
d- 7 = square root of the quantity of x minus 5 all squared plus y minus 4 all squared

Answers

Answer: (-2, 4)

Step-by-step explanation: The right coordinate for point B with 7 units as distance is (-2,4). To arrive at the answer, the distance formula is used. The solution for the problem is:

7= √[(-2-5)² + (4-4)²)

Finding the coordinates for point B will be done through the square root of the quantity of x minus 5 all squared plus y minus 4 all squared so option (D) will be correct.

What is a line segment?

A line section that can connect two places is referred to as a segment.

In other words, a line segment is just part of a big line that is straight and going unlimited in both directions.

The line is here! It extends endlessly in both directions and has no beginning or conclusion.

Given a point A(5,4) and another point B (x,y).

Distance between A to B = 7 units.

To find the distance between any two the following formula is used.

[tex]\sqrt{(x_{2} - x_{1} )^{2} + {(y_{2} - y_{1} )^{2}[/tex] hence, it is clear that option (D) will be correct.

For more about line segment

https://brainly.com/question/25727583

#SPJ5

What is the value of 'm' in this proportion?
1/7 /3/4 = 1/6 / m
Enter your answer as a fraction in simplest form in the box.
m = [ ]

Answers

Answer:

Step-by-step explanation:

Part A is 1/4 of the whole

Part B is 3/4 of the whole

Assuming there are no other parts,

the Whole = A + B is the denominator:

Whole = 3 + 9 = 12

Part A = 3 and Part B = 9 are numerators for each fraction.

The fractions are then:

3/12 and 9/12

Meaning:

Part A is 3/12 of the whole

Part B is 9/12 of the whole

Reducing the fractions, it is also true that:

Part A = 1/4 of the whole

Part B = 3/4 of the whole

Answer:

When 1/7 and 3/4 are next to each other, are they getting multiplyed?

Step-by-step explanation:

Explain how could you find 5 divided by 1/3 by using the value of 5 • 3.

Answers

5 divided by 1/3 is the same as asking "How many different slices of pie are there if you cut 5 pies into 3 slices each?" So, if you were to use the diagram, you could cut each piece into three slices, which is the same as 5 x 3 = 15.

Sorry bad explanation but hope this helped! :D

I think it’s 5/3 but not pretty sure and if it’s wrong I’m sorry.

if 62% of 80 classmates like hip-hop, but 70% of 60 relatives like hip-hop, which one is more?
My mind is in a doozy so I forgot how to do this, also any equations will help a ton!

Answers

62 percent of 80 is more

Step-by-step explanation:

the 62 percent of 80 comes out to 49.6 people and the other one comes out to 42 people

i dont know how to explain how to do it

62% of 80 is more

80=100%
x=62%

You divide the ones with the same units

x/80 = 62%/100% (write those as fractions if you have to show any work)
x=49.6

60=100%
x=70%

x/60 = 70/100
x=42



Martha earns $15 per hour for babysitting. The parents always give her a $5 tip.
-What is the slope of this situation?
-What is the y-intercept in this situation?
-How many hours did Martha babysit if she made $65?
(Please help me)

Answers

Answer:

3

y=3x  

4 hours

Step-by-step explanation:

15 dollars in one hour plus 5 as tip makes the ratio afterwards 15\5 which equals 3. 65 dollars - 5 equals 60, which divided by 15 = 4 hours.

The slope is: 15x
The y intercept is: 5
Which means the equation is y=15x+5 so the answer is 3

Which integer represents a withdrawal of $123?
-123
123

Answers

Answer:

-123

Step-by-step explanation:

When someone is withdrawing something there taking so of you are removing money Wich is represented as -x"x being the amount"

Answer:

-123

Step-by-step explanation:

its -123 because if you have lets say 200$ in your account. whats gonna happen if you take out 123$? you'll have 77$ left, because you subtracted it.

Simplify These Fractions:

Answers

Answer is -6. You skip the first fraction change the sign to multiplication and flip the second fraction. Then you multiply and simplify the fraction
The answer is 6 and if you had to do exact form it will be 2/3

HELP PLEASWEEEEE !!!! :C

Answers

I would answer using the mx+b = y equation. To find the slope, use the equation of m = (y2-y1)/(x2-x1).
You can use any 2 pairs of values in the table.
(2-1)/(9-7) = 1/2. Since there is a cost of the container, we will need to find the y-intercept by choosing a coordinate and then plugging it in the equation.
(1,7)
1 = 7(1/2) + b
1 = 3.5 + b
-2.5 = b
They charge for the container is 2.5 dollars and will be consistent.
Since 1 oz = 1/16 lb, then 16 oz = 1 lb
1 oz = 1/2 dollars
16 oz = 8 dollars
I don’t know if I got it right but I hope it helps

Evaluate when x = 9 and y = 10:
1 3
--x + ---y
2 4

SHOW ALL YOUR STEPS

Answers

Answer:

its very easy

Step-by-step explanation:

=13-x-24y

=13-9-(10)24

=4-240

=236

HELP!
P/4 < 2
What does p=?

Answers

P/4 < 2

Isolate p by multiplying both sides by 4:


p < 8


Answer:

p=8

Step-by-step explanation:

put 9 to the power of 4 in prentices and outside of the prentices is to the power of 2

and multiply the exponents

Simplify These Fractions:

Answers

Answer:

D

Step-by-step explanation:

i think that might be a minus sign in between,

but the first fraction -2 1/6 will be -13/6

the second fraction will be -22/3 (also known as -44/6)

the equation will be

-13/6 - (-44/6)

-13/6+44/6= 31/6

31/6 = 5 1/6

so your answer is the last one :) hope i helped!

5 1/6 would be the correct answer

A racecar driver is trying to decrease her lap times by at least 8%. Select whether the description stated shows that the driver reached her goal.

A.The original time was 2.5 minutes, and the new time is 2 minutes.
B.The original time was 4 minutes, and the new time is 3 minutes.
C. The original time was 5.25 minutes, and the new time is 5 minutes
D. The original time was 3 minutes, and the new time is 3.15 minutes.

Answers

Answer:

A. The original time was 2.5 minutes, and the new time is 2 minutes.

B. The original time was 4 minutes, and the new time is 3 minutes.

Step-by-step explanation:

A. 8% of 2.5 is 0.2, but 2 minutes is faster than 2.2 minutes

B. 8% of 4 is 0.32, but 3 minutes is faster than 3.68 minutes

C. 8% of 5.25 is 0.42, 5 minutes is slower than 4.83 minutes

D. she is slower so her lap time is increasing

A and B

For A, 8% of 2.5 is 0.2 and 2.5 - 0.2 =2.3
2 minutes is less than 2.3 so thats correct.

For B, 8% of 4 is 0.32 and 4 - 0.32 = 3.68
3 minutes is less than 3.68 so thats correct.

HELP ASAP DUE AT 8:30!!!

Answers

Answer:

someone already answered?

Step-by-step explanation:

oh

Answer:

2, 3, 5, 7, 11, 13, 17 and 19

 150

/         \

10       15

/\         /\

2 5     3 5

2,3,5,5

Step-by-step explanation:

I would like to borrow $1,200 for 3 years. Your interest rate is 8%. How much interest will I pay over the course of the loan?

a. $228
b. $500
c. $960

Answers

Answer:

answer is a or $228

Step-by-step explanation:

1200x3x0.08= 228

Name the pattern rule

Answers

Hey there!

Your answer would be c) add 5.

This is because the rate of change here is 5.

Hope this helps!

The pattern is just they add 5 like 4+5=9 and 9+5=14

Hoped this helped!

Have a wonderful day-

can someone plZZZZZZ help with these questions in math i did number seven but i would like to know if it's correct or not and i would like some help solving the other questions PLLLLLSSSSSSSSSSSS
IMA SO BAD AT MATHHHHH

Answers

Answer:

yes it is

Step-by-step explanation:

Please help Math will mark brainlyest

Answers

Answer:

Ask a tutor

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Sorry, but you would need to take pictures of the slides so we know what to choose from.

NEED HELP ASAP WILL MARK BRAINLIEST!!

Answers

The answer is for the question is C
It’s a because I got it on edge

helpppppppppppppppppppppppp

Answers

The correct answer is the 3rd one
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