Mathematics Middle School

Joe gets 90% right on a quiz with 20 questions.

How many questions does he get right?
20
18
9

Answers

Answer 1

Answer:

I think the answers 18. hope this helps :)

Answer 2

Answer:

the answer is 18

Step-by-step explanation:

20=100% incorrect

9/10=50% incorrect

Related Questions

what is 3(x-6)+4x+18

Answers

7x is the simplified version

Answer:

i am going to assume that 3(x-6)+4x+18=0

3x-18+4x+18=0

                 7x=0

                   x=0

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Answers

Answer:

Are you lonely :)

Answer:

Are You Lonely

by Alan Walker and Steve Aoki

Step-by-step explanation: pls mark me branliest if its right lol :)

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Answers

Answer:

216

Step-by-step explanation:

The number of smaller unit cubes that could fit inside the bigger one could be calculated by dividing the Volume of the larger cube by the volume of the smaller cubes.

Volume of bigger cube:

[tex](1\frac{1}{2}) ^3 = \frac{27}{8}[/tex]

Volume of smaller cube:

[tex](\frac{1}{4} )^3=\frac{1}{64}[/tex]

[tex]\frac{27}{8} /\frac{1}{64} =\frac{27}{8}*64=216[/tex]

Answer:

Step-by-step explanation:

Take 1 1/2 * 1 1/2 * 1 1/2 = 27/8 (3.375) in which would be the volume  and then all you have to do is put 1/4 into 27/8 how many overtimes (3 3/8)

(I would wait until you have more answers because I'm not that great at math but I'm here to practice)

A) An airplane prepares for landing at an
altitude of 54,000 feet. Assuming it descends
at a rate of 3,000 feet for minute. Write an
equation in slope-intercept form that models
that situation.

Answers

The answer is y=5400x-3000

I need help on part b please. part a is james i already know that.

Answers

Part B: Answer 127.5$

Answer:

$150

Step-by-step explanation:

Well, lets see. I'm no expert but I'm in Advanced Math 7th Grade so I could possibly help.

We have to figure out how much each person is getting per hour for part a.

We can use this formula:

James: 102/12= 10

Julie: 120/15= 8

I really have no clue so my guess would be this.

Using a table: We can figure out how much James would get for a 15 hours based on getting 102 for 12.

We know he gets $10 for 1 hourSo all you have to do it multiply 10 by 15.That is 150.

Therefore according to my 7th grade brain the answer is $150 for doing 15 hours of yard work for James.

I hope this helped!

Evaluate the expression

10 - 4 / 2

Answers

Answer:

The answer to the expression is 8

Answer:

The answer is 8

Step-by-step explanation:

10−4/2

=10/1−4/2

=10/1+−4/2

=10/1+−2/1

=10+−2/1

=8

I turned them both into fractions

A baseball has a diameter of 4.3 inches. Find the volume of the baseball. Round your answer to the nearest tenth. Use 3.14 for π.

Answers

Answer:

13.5

Step-by-step explanation:

4.3 • 3.15(pi)

Rounded to nearest tenth: 13.5

Hope this helps, good luck! :)

Joe and his brother weigh a total 66 pounds in the ratio of 2:1 respectively. How much heavier is Time than his brother?

Answers

Time is 22 pounds heavier than his brother
Time is 22 pounds heavier because 66 would be split into three, which explains 2:1 - 2+1… so 22 is 1/3 of 66 and 44 is 2/3 of 66

I need help with this question

Answers

Answer:

15.28

Step-by-step explanation:

first we divide 96 by 3.14 to get the diameter

96÷3.14=30.57

now we have the diameter we divide by two to get the radius

30.57÷2=15.28

15.28 is your radius

Can someone write a story problem idea for me?
The equation: 1/2 ÷ 2

Answers

You have 1/2 of a pizza left and you want to share it equally between 2 people, how much pizza does each person get?

(8 slices per pizza)

Please help me. Will give brainliest!!

Answers

100 x 400 then do pi times the diameter
This is actually pretty fun to do!

So the formula for area of a circle is A=πr^2
We know that the diameter (or distance across) one blue half-circle is 40 yards
And radius is half of the diameter so 40/2 = 20 so radius=20
Now just plug it into the equation! A = π (20)^2 —> A = π (400) —> A = 1256
BUT that is the equation to find area of a complete circle. Since this is a HALF circle, divide that area in half: 1256/2 = 628
So the area of one of the blue half-circles is 628

Please help me with this. I haven't done a problem like this in forever and totally forgot how. Have an amazing day!!

Answers

Answer:

-100

Step-by-step explanation:

(6+4) × (-3-7)

(10) × (-10)

= -100

Answer:

-100

Step-by-step explanation:

do inside the parentheses first.

10 x -10 = -100

HELP ME PLS IM GIVING BRAINLY IF CORRECT

Answers

Answer:

There’s no picture what’s the question?

Step-by-step explanation:

where is the question?

I know I've asked a bunch of questions but I reallyyyy need help on math

Answers

Answer:

i think its d

i believe it’s the last one

Which two expressions have the same value?

Answers

Answer:

One and two

Step-by-step explanation:

The answer is one and two since you would first multipy anyway using pemdas

Answer:

One and 2 since the only difference is parentheses

PLZZZ HELP ME GIVING 20 POINTTSSSS

Answers

Answer:4/5

Step-by-step explanation:

I think it's 4/5 because the number 3 is only one number of 5. And if you subtract 5-1, you'll get 4.

I think it’s 1/5 because theirs only 1 marble with the number 3 on it out of the total 5 marbles

On a scale drawing, the height of a tree is 3.75 inches.
If the scale of the drawing is 1 in. : 50 ft, how tall is the tree?
Geometry

Answers

Answer:

d

Step-by-step explanation:

Each outer wall of the Pentagon in Washington D.C , measures 921 feet .What is the measure of each angle made by the Pentagon’s outer walls?

Answers

Answer: its 4605

Step-by-step explanation:

Rania is playing with her friend Arun, and they are setting up dominoes across the room. Each domino is 2 inches long. They have already placed 10 dominoes in a row. The room is 10 feet long and they want to know how many more dominoes they can set up before they reach all the way across the room. Does the inequality 2d + 20 < 120 model this situation? Explain why or why not.

Answers

Answer:

no

Step-by-step explanation:

It should be less then or equal too, seeing as they want to reach all the way across the room.

Which decimal is equal to 4/5?

Answers

0.8 is equal to 4/5
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The speed limit on a highway is 75 miles per hour. Which of the following inequalities represents this situation? x ≤ 75 x ≥ 75 x < 75 x > 75

Answers

Answer:

x ≤ 75

Step-by-step explanation:

Answer:

x ≤ 75

Step-by-step explanation:

Latasha deposits 250$ into a account savings. The simple intrest rate paid is 3.5%. how much interest does Latasha earn in one year?

Answers

Multiply $250 by 3.5% = 8.75
250 + 8.75 = 258.75

The amount of interest that Latasha earns in one year will be $8.75.

What is simple interest?

Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.

The formula for interest is written as,

I = (PRT)/100

Where P is the principal, R is the rate of interest, and T is the time.

Latasha deposits $250 into her account savings. The simple interest rate paid is 3.5%.

Then the amount of interest that Latasha earns in one year will be given as,

I = ($250 x 3.5 x 1) / 100

I = $875 / 100

I = $8.75

The amount of interest that Latasha earns in one year will be $8.75.

More about the simple interest link is given below.

https://brainly.com/question/2793278

#SPJ2

Help please, need help

Answers

Answer:

Step-by-step explanation:

B) Small triangle:

height = 20 - 15 = 5

base = 1

height to base =  5 :1

Medium triangle :

height = 60 -30 = 30

base = 2

height to base =  30 :2  = 15 :1

Large triangle:

height = 120 - 60 = 60

base = 4

height to base =  60 : 4 = 15 : 1

c) The ratios are same. This is true because wage and working hours are in direct proportion.

E) Take any two points. (1 , 15) & (2 , 30). Find the slope.

Slope = Change in y ÷ change in x

 m = (30-15) ÷ (2 -1) = 15/1 = 15

y -y1 = m(x -x1)

y - 15 = 15(x - 1)

y - 15 = 15x - 15

y = 15x - 15 + 15

y = 15x

The answer is: Y= 15x

Questions in the attachment! Please answer both no bitly links please

Answers

Answer:

a) y = x + 3

b) y = x + 4

Step-by-step explanation:

a)

the line is going through 3 on the y-intercept line

b)

0,4 is graphed and if there is a 0 under the x, the y is automatically the y-intercept

Match the descriptions with the shapes:

My faces are rectangles.
My two bases are triangles
All six of my faces are rectangles.

I have a rectangle for a base.
The rest of my faces are triangles.

I have a triangle for a base.
All of my faces are triangles.

I have a square for a base.
The rest of my faces are triangles.

All six of my faces are congruent squares.
I am also called a cube.

Answers

A: Hexagon
B: Diamond
C:Triangle
D:Star
E:Square?

I rlly hope this helps, I don’t know it all but I rlly hope it helps at all :)

order these values from least to greatest.

Answers

Answer:

1 . 16

2 . 4

3 . 64

4 . -4

The fourth one goes first and then the second one and then the first one and then the third one.

1.16 2.4 3.64 4.-4 the order is -4, 4, 16, 64

Which of the following could be used to describe angles DBC and ABD?

Answers

the answer is C :)))

lol can someone help and please do the step by step explanation and the answer correctly (best answer will get brainliest)

Answers

Answer:

A

Step-by-step explanation:

Sorry if i'm wrong but i think B is wrong because for the field hockey team the max is mmore seperated than the basketball team. again, sorry if i'm wrong

PLEASE HELP ASAP PLEASE AND THANK YOU

Answers

Answer:

9; 4.6

10; 2.7

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Answers

Answer:

1232

Step-by-step explanation:

Step 1: 8x14 to find the base

Step 2: Base times Height

Good Luck! And have a great day!

Answer:

[tex]410\frac{2}{3}[/tex] cm³

Step-by-step explanation:

8 × 4 × 11 = 1232 cm³

1232 cm³ ÷ 3

[tex]410\frac{2}{3}[/tex] cm³

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