Mathematics Middle School

Mrs. Mendez held a reading contest in
her third-grade class. The students read
160 books. The girls read 84 books.
What percent of the books did the boys
read?

Answers

Answer 1
The boys read 47.5% of the books
Answer 2

Answer:

47.5 percent is correct

Step-by-step explanation:

Related Questions

Select all ratios equivalent to 12:8 A. 15:10 B. 27:12 C. 14:2

Answers

Answer:

(12/8 = 1.5)

A) 15:10

Only A!!!!!! The others are incorrect

i needd help with this answer
this is an 10 points but it gon say 50 bc yall are spliting

Answers

Answer:

we 10 points because you are vb and your classmate have 50 point because their bright

Answer:

I think it's A.

Step-by-step explanation:

Spheres have no faces, sides, or verticles. this saying/fact is from a website https://flexbooks.ck12.org/cbook/ck-12-middle-school-math-concepts-grade-7/section/10.1/primary/lesson/classification-of-solid-figures-msm7/#:~:text=A%20sphere%20is%20a%20solid%20figure%20that%20has,has%20one%20face%2C%20but%20no%20edges%20or%20vertices.

I'm super confused about this

Answers

The answer should be n<-0.6 but I might be wrong
I think the answer is n<-0.6

A right triangle has one leg with a length of 5 units. The hypotenuse is 30 units long. What is the length of the other leg?

A. 5 Units

B. 25 Units

C. V 875

D. V 375

Answers

Answer: C. [tex]\sqrt{875[/tex]

Step-by-step explanation:

use Pythagorean theorem [tex]a^{2}+b^{2}=c^{2}[/tex]

a=5 c=30 solve for b

[tex]25+b^2=900[/tex]

subtract 25 from both sides to get [tex]b^2 =875[/tex]

then square both sides to get [tex]\sqrt{875[/tex] for the length of the other leg

i believe the answer is v 875

20 POINTS TO WHOEVER GETS THIS RIGHT <3

What is the value of the expression below when x=8 and y=4
9x-2y

Answers

Answer 64

Step-by-step explanation: if x is 8 you do 8 x 9 which is 72. Then you do 2 x 4 which is 8. So now you have 72 - 8 which is 64.

The answer is 64
Explanation

Select all ratios equivalent to 1:3 A. 9:21 B. 5:15 C. 4:12

Answers

all of the answers would be correct/ equivalent to 1:3
It’s B, and C because 1 x 9 is 9 and 9 x 3 is 27 which proves its incorrect.

And 1 x 5 is 5 and 3 x 5 is 15 so its correct.

Lastly, 1 x 4 is 4 and 3 x 4 is 12 so that proves that this is correct.




Hope this helps! :)

Find the quotient. 3 ÷ 2/5​

Answers

Answer:

7 1/2

Step-by-step explanation:

Keep Change Flip

3 x 5/2

=15/2

=7 1/2

Hope this helps :)

i believe the answer is 7 1/2

how can you use a mental math and the inverse property of addition to find the sum [5.5 + (-2.3)] + (-5.5 + 2.3)?

Answers

Hi you can do 5-3 is two then 5-2 is three so you get 3.2 then go to the either side and do 5-3 that equaled two and then do 5-2 that is three so you 3.2 then you add both of them together to get 6.4

Answer: it is 0

Step-by-step explanation:

[5.5+(-2.3)] + (-5.5+2.3)

We can multiple (-5.5+2.3) by -1 so that it equals the first expression

[5.5+(-2.3)] + (-1)[5.5+(-2.3)]

Then, we change the + to -

[5.5+(-2.3)] - [5.5+(-2.3)]

since we are subtracting the same value, the answer is 0.

Can I please have help

Answers

Since it’s across from each other it would be the same so 69
As they are opposite the angle would equal 69
So
5x+4=69
5x=65
X=13

Find all the solutions to z^4 = -4 in complex numbers.
The complex numbers should be a+bi, where a and b are real

Answers

Answer:

z = 1 - i

z = 1+i

z = -1 - i

z = -1 + i

Step-by-step explanation:

I think?

On monday, your bank account balance was -$12.58. Because you didn't realize this, you wrote a check for $30.72 for groceries. a) What is the new balance in your checking account? b) The bank charges a $25 fee for playing a check on a negative balance. What is the balance in your checking account after this fee? c) How much money do you need to deposit to bring your account balance back up to $0 after the fee?

Answers

Answer:

a) The new balance in your checking account is -$12.58 - $30.72 = -$43.30.

b) After the bank charges a $25 fee for overdrafting, the balance in your checking account will be -$43.30 - $25 = -$68.30.

c) To bring your account balance back up to $0 after the fee, you will need to deposit $68.30.

Step-by-step explanation:

Answer:

First, you subtract the 30.72 from the -12.58 which is -43.03 which is therefore how much you have in your account. Then we subtract another 25 for the fee. -68.03 Is how much you have after paying the fee.

Therefore, to get to 0, you need to pay 68 dollars and 3 cents.

Step-by-step explanation:

4x-5(2x+1)=6x+1. how many solution will this have? is this right

Answers

Yea I’m pretty sure that right

These are homework questions I don't understand- can I please get help?

Answers

WARNING: ANSWER NOT NOT BE RIGHT! Answer: 1- A I really hope this helps! Im not good at this stuff, but I hope I did good! This not be right!

Answer:

1. a. draw 5 boxes with 7ś in them and x=7

2. number 7. x+x+x=9 that is A. and x+3=9 for B.

3. part a: x+9=16 draw a box with x+9=16 and x=7

3. part b: 4(x)=28 draw a bout that matches that and x=7

Step-by-step explanation:

1. the value of x is seven because 5x = 35 divide x on both sides is 7

2. number 7. x+x+x=9 that is A. and x+3=9 for B.

3. part a: x+9=16 draw a box with x+9=16 and x=7

3. part b: 4(x)=28 draw a bout that matches that and x=7

Out of a class with 25 students, 24 of them returned their permission slips to go on the field trip. what percentage of the students returned their permission slips>

Answers

Answer: 96%

Step-by-step explanation: 24/25= 0.96

96%….. this needs to be 20
characters long

…………………………..

Select all ratios equivalent to 30:14 A. 6:4 B. 21:7 C. 60:28

Answers

Answer:

c

Step-by-step explanation:

30:14    The division isn’t proportional. 30/5 is 6 but 14/5 is not 4.

6.4

—————

30:14   Same here as above just now the 14 is proportional just not the 21.

21:7

—————

30:14     Finally! The 2nd ratio is twice the first!

60:28

Answer: hope this helps ♡

C. 60:28

Step-by-step explanation:

30:14

A. 6:4 → 30 ÷ 6 = 5 & 14 ÷ 4 = 3.5 (the answers aren't equal) 30:14 ≠ 6:4

B. 21:7 → 30 ÷ 21 = 1.4 & 14 ÷ 7 = 2 (the answers aren't equal) 30:14 ≠ 6:4

C. 60:28 → 30÷60 =0.5 & 14÷28 = 0.5 (the answers are equal) 30:14 = 60:28

Can anyone help out with this?

Answers

Answer:

Step-by-step explanation:

It is C) TK
This is because that line does not intersect or touch the line LR, so it is not transversal to it.

Football team needs to gain 10 yards to score touchdown. On the first play the team gained 7 yards. on the second play they were penalized and lost 5 yards on the. third play they gained 2 yards. how many more yards must they gain on the forth play in order to score?

A. 2 yards
B. 4 yards
C. 6 yards
D. 8 yards

PLEASE HELP

Answers

Answer:

Step-by-step explanation:

The correct answer is 4 yards

Hallie and Mattie donated blue jeans to the clothing drive. Hallie donated 4 pairs of blue jeans. Mattie donated 6 pairs of blue jeans. Write a ratio to represent the relationship between Hallie's donation of jeans and Mattie's donation of jeans.

Answers

Answer:

2:3

Step-by-step explanation:

Hallie's Donation : Mattie's Donation = 4:6

simplified, it is 2:3

2:3

If you do 4/6 you’ll simplify to get 2/3.

how many solution does 4x-5(2x+1)=6x+1 have

Answers

The number of solution the equation 4x - 5 (2x + 1) = 6x + 1 have is one.

What is a solution?

Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.

We have,

4x - 5 (2x + 1) = 6x + 1

4x - 10x - 5 = 6x + 1

-6x - 5 = 6x + 1

-5 - 1 = 6x + 6x

-6 = 12x

x = -6/12

x = -1/2

This means,

The equation has one solution.

Thus,

The equation has one solution.

Learn more about solutions of equations here:

https://brainly.com/question/545403

#SPJ1

plsss help meee i need my grade to go up

Answers

Answer:

First column:

E: 35

i :51

A: 168

Y: 18

T: 140

E: 7

P: 19

Step-by-step explanation:

I used order of operations / PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction), and plugged in the values for a, b, n, and m. For letter E, add and subtract the values first then divide, it's easier. That's all I got for now. I'll solve the rest and answer as soon as possible. :)

The phrase at the bottom ends up being HEWANTSTOWAKEUPOILY
so in order the answers are
First section 35, 51, 70, 18, 43, 7, 19
Second section 6, 60, 16, 20, 1, 41, 24
Third section 11, 72, 8, 30, 10, 0

7y+5z-2y+z

grade 7 math

Answers

Answer:

Step-by-step explanation:

7y+5z-2y+z

Group the two y and the two z together

7y-2y = 5y

5z+z= 6z

(a variable with out a number is = to 1)

so it would be  5y+6z

Hope this helps

The answer would be 5y+6z.
The reason for this is because only like terms can be added and subtracted.
(7y-2y) and (5z+z)

Solve the system of linear equations by elimination. Check your solutions.

-5x + 3y = -6
9x - 4y = 1

Answers

We can divide both sides of the equation by 43 to solve for x:

90x / 43 - 47y / 43 = -49 / 43

x = -49/43

We can substitute this value for x back into either of the original equations to find y. Let's substitute it into the first equation:

-5x + 3y = -6

(-5 * -49/43) + 3y = -6

y = (-6 + 5 * 49/43) / 3

y = 17/43

The solution to the system of equations is (x, y) = (-49/43, 17/43).

To check our solution, we can substitute the values we found for x and y back into the original equations and see if they hold true.

In the first equation, -5x + 3y = -6, substituting the values we found for x and y gives us:

(-5 * -49/43) + (3 * 17/43) = -6

This simplifies to -6 = -6, which is true, so the solution holds for this equation.

In the second equation, 9x - 4y = 1, substituting the values we found for x and y gives us:

(9 * -49/43) - (4 * 17/43) = 1

This simplifies to -1 = -1, which is true, so the solution holds for this equation as well.

Therefore, the solution (x, y) = (-49/43, 17/43) is correct.

-5*9=-45
-45x+3*9y=-6*9
Equation1: -45x+27y=-54

Equation2: -45x-(4*(-5))y=1*(-5)
-45x+20y=-5

Equation1-equation2= 27y-20y=-54-(-5)
7y=-49
Y=-7

9x-4*(-7)=1
9x=1-28
X=-3

(X, y)=(-3, -7)

Nine out of 45 students said that their favorite color was red. what percentage of students said that red was their favorite color?

Answers

So if theres 45 students in total, thats 100% of students, nine of those would be 20%

20% x 45 = equals 9 so ur answer is 9

PLEASE HELP!!!!!!A set of data includes 98 data points ranging from 0 – 160. If the data is split into classes with a range of 10 (1 – 10, 11 – 20, etc), and there are no values that fall in the class 81 – 90, what can you say about the data?

1 The mean of the data will not be between 81 – 90.
2 All the data lies below 80.
3 The relative frequency of the class 81 – 90 is 0.
4 The median could be in the range 81 – 90.

Answers

A b c ok a Gabe n m j h
I think the answer is 1 because it can’t be 2 because it goes up to 160. It can’t be the 3rd one because the is no data so it can’t be frequent

A restaurant customer left ​$1.40 as a tip. The tax was 5% and the tip was 20​% of the cost including tax. a. Which information is not needed to compute the bill after tax and​ tip? b. What was the total​ bill?

Answers

Answer:

Step-by-step explanation:

(10 x 100) x = 0.70. (10÷ 10) 100 ÷ 10. = 1/10 x = 0.70. X 0.70 x 10. X= 7.00

The total bill would be 7%

The equations below represent the numbers y of tickets sold after x weeks for two different local music festivals. Create a table for the ticket sales each week.

Answers

Answer:Part a) 3.5 weeks

Part b) 185 tickets

Step-by-step explanation:

The table shows the relationship between the participants walking and running for the week's cross-country practices.


Walk (laps) 3 B 15
Run (laps) 5 10 D
Total (laps) A C 40


At this rate, how many laps will the participants walk if the total distance is 24 miles? How many miles will they run?
They will walk 7 laps and run 17 laps for a total of 24 miles.
They will walk 15 laps and run 9 laps for a total of 24 miles.
They will walk 9 laps and run 15 laps for a total of 24 miles.
They will walk 6 laps and run 18 laps for a total of 24 miles.

Answers

Answer: it was just the number of the 2 positive for the following number

Can I please have help

Answers

The correct answer is 154°
the correct is 154* GIVE BRAINLIEST

Garth sells baseball caps outside the stadium. The graph shows the number of caps sold and the income from the sales. It represents a linear function.

Which statement best describes Garth's income from selling these caps?

A. He gets $5.00 per cap.
B. He gets $25.00 per cap.
C. He gets $34.00 per cap.
D. He gets $12.00 per cap.

Answers

he gets 12 per cap

100/8 = 12.50
the answer should be d

29 POINTS TO WHOEVER GETS THIS RIGHT

What is the value of the expression below when w=7 and x=5
3w + 10x

Answers

Answer:

3 × 7 = 21

10 × 5 = 50

21 + 50 = 71

Therefore, the answer is 71.

Answer:

41

Step-by-step explanation:

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