Mathematics Middle School

7 students have 3 books each. Which helps you find the total number of books?

7 - 3
7 ÷ 3
7 × 3
7 + 3

Which one?

Answers

Answer 1
7x3 i has each and each means multiply.
Answer 2

Answer: 7 x 3

Step-by-step explanation: 7 students have three books, so you have 7 sets of three books. 3+3+3+3+3+3+3 is the same as 7 x 3

Related Questions

Kareem's mother's age, in years, is 5 years less than 8 times Kareem's age. If Kareem is k years old, which expression represents his mother's age? 5−8k years 5k−8 years 8−5k years 8k−5 years

Answers

8k-5 years.

k is his age so. 8 times his age would be 8k. 5 years less is 8k-5

Answer:

8k - 5

Step-by-step explanation:

since k represents kareems age, you would have to multiply that by 8. the expression 8•k can be simplified to 8k. the question states that the mothers age is 5 less than 8k, so the correct expression to represent the mothers age is 8k-5

I- GUESS WHO NEEDS HELP AGAIN...
I don't wanna fail math aaaa

Answers

Answer:

C

Step-by-step explanation:

Follow Pythagorean Theorem. a^2 + b^2 = c^2

We know b and c:

a^2 + 12^2 = 13^2

a^2 + 144 = 169

a^2 = 25

a = √25

a = 5

The answer is C because we know side a = 5

Give this branliest

Please Help! How to simplify the exponential Expression of (2a^-4 b)^3 (3a^2 b^-2)^2
Thanks!
<3

Answers

The answer is 72/a^8b
72 over a^8b

( Rachel needs to write 3 book reports with b pages 3 science report with s pages during the school year write an algebra expression for the total of pages Rachel will need to write )

Follow up question

Rachel’s friend Yassi has to write 3 ( b + s ) pages for reports, Use properties of operations to determine whether this expression is equivalent to the expression for the number of pages Rachel needs to write.

Answers

anwser: 3b+3s

step by step explanation:

Shawna, Dexter, and Tilana are solving the equation Negative 2.5 (5 minus n) + 2 = 15.

Shawna says, “I can begin by dividing each side of the equation by –2.5 to get 5 minus n minus StartFraction 2 over 2.5 EndFraction = Negative StartFraction 15 over 2.5 EndFraction.”
Dexter says, “I can begin by distributing Negative 2.5 to get Negative 12.5 + 2.5 n + 2 = 15.”
Tilana says, “I can begin by multiplying each side of the equation by Negative StartFraction 1 over 2.5 EndFraction to get 5 minus n minus 0.8 = negative 6.”

Which students are correct?
only Shawna and Tilana
only Shawna and Dexter
only Dexter and Tilana
Shawna, Dexter, and Tilana

Answers

Answer:

All students are correct

Step-by-step explanation:

Shawna, Dexter, And Tilana

All students have the correct answer

What fraction is greater than -2/3 and less than -1/2
A. -3/4 B. -7/12 C. -5/12 D. -3/8

Answers

A is the answer

Hope this helps...

C Is the correct answer

please help me with this

Answers

Answer:

D -55

Step-by-step explanation:

-55, since we put -1 and -3 instead of x and y. We multiply the result in the brackets by five. This gives us five

Answer:

The answer is C: -45

Step-by-step explanation:

Use the distributive property to find the equivalent expression.
7(7 + 6b) =

Answers

7x7= 49

7x6b= 42b


49+42b

Answer:

49 + 42b

Step-by-step

You are using the distributive property, Take the 7 on the outside, and multiply it by both numbers on the inside.

7 * 7 = 49

7 * 6b = 42b

49 + 42b

Multiply four and eight tenths multiplied by three.

thirteen and one tenth
thirteen and four tenths
fourteen and two tenths
fourteen and four tenths

Answers

Fourteen and four tenths

Step-by-step explanation to answer:

(4 + 2/5)3

(4x3) + (2/5x3)

12 + 1 1/5

13 and 1/5 or 2/10

Plsssssssss Help!!!!!!!!
In the graph shown, at what value of X does the value of Y change from increasing to decreasing or decreasing to increasing?

Answers

Answer:

The answer is B

Step-by-step explanation:

I'm not sure how to explain it but the answer B

At X=-1 change from increasing to decreasing

Need help with an algebra question please and thank you ^^

Answers

flvs:( this is so sad

Which of the following uses the reciprocal property to rewrite {x}{5} = {72}{4}

A: x/72 = 4/5

B: 5/x = 4/72

C: x/5 = 72/4

D: x/4 = 5/72

Will mark brainliest if answer is correct.

Answers

Anw:

a

Step-by-step explanation:

72*4=5x

=288

5x=288

x=288/5

=57.6

x=57.6

57.6/72=0.8

4/5=0.8

Without graphing the​ equations, decide whether the system has one​ solution, no​ solution, or infinitely many solutions.

4y = x - 9
6x - 8y = 18

How many solutions does the system​ have?

A. One solution
B. Infinitely many solutions
C. No solution

Answers

Answer:

No solution

Step-by-step explanation:

Look at the first problem. As you see there is a y and a x. You cannot find x and y. So there is simply no solution.

Michelle ordered 200 T-shirts to sell at the school carnival. She paid $2.80 per shirt, plus 5% of the total order for shipping. When she sells each T-shirt at the carnival, she adds 150% markup to the total price she paid for the shirt (including the cost of shipping). What is the selling price of each T-shirt? help i only have 10 points but plz help

Answers

Answer: 4.18$ or 4.19$ per shirt (I’m not entirely sure my answer is correct but do what you must with this info)

Step-by-step explanation: 200 times 2.80 is 560,

5% of 560 is 588,

150% of 588 is 882,

and then 882 divided by 200 is 4.18 (or 4.19)

What is the equation of a direct variation that goes through the points (-6, 2) and (9, -3)?

y = -1/3 x
y = -3 x
3 - y = x
y = x - 3

Answers

The answer is A


-3-2=-5 -5 divided by 5= -1
9+6=15 15 divided by 5=3

Answer:

y = -1/3x

Step-by-step explanation:

Help with math I have to finish this for attendance

Answers

Answer:

she can make 40 baskets in 5 hours

Step-by-step explanation:

because there is 10 1/2 hours so 10 x 4= 40

what are two fractions that make 17/20. please don't respond if you don't know the answer because I'm wasting points please and thank you.

Answers

1. 34/40
2. 51/60
Hope this helps!!!!

Answer: 9/10 and 8/10

Step-by-step explanation:

Let's hope I'm rightt

Please help me answer this :/

Answers

Answer:

Option C. 27m^6n^12 I'm assuming

Answer:

27m^6n^12

Step-by-step explanation:

:)

Please help! I would be more thankful if you really helped.

Answers

Answer:

2a + 15 = 51

Step-by-step explanation:

51 is the total inches

15 would be the 5 three inches (aka 5 x 3)

then you have mystery amount of 2 inch pieces which would be 2a

hope it helped

It is the last answer!!

A real estate agent received 2.5% commission for a house that sold for $175,000. How much was the agent's commission?

Answers

A : 4375
175,000 of 2.5

Answer:

I think $70,000

Step-by-step explanation:

I took $175,000 and divided it by 2.5

Hope it helps!

Have a great day!

If I am right please thank, rate and please give brainliest.

Max earns $6.50 per hour mowing lawns. On Saturday he earned $52. How many hours did he mow lawns?

Answers

Answer:

8 hours

Step-by-step explanation:

i just did 52÷6.50=8

He worked 8 hours because if you divide his total amount made but his hourly pay you get 8 hours he worked

r+(-5r)


Combine the like terms to create an equivalent expression:

Answers

Answer:

Remove parentheses.

r-5r

Simplify.and the answer will be

-4r

Anytime love

Step-by-step explanation:

I need help with this question that's attached

Answers

The answer is a certain combination of numbers or letters and spaces and maybe symbols that I will no tell
Explanation: common sense dude XD

i put in a lot of points so plz give me an answer and not just for the points

Answers

Answer:

t = .61 seconds

Step-by-step explanation:

61
That is what t equals

i need help please
fr tho i need help

Answers

The transformation for this specific diagram is (-y,x)

Sara and Ellie have $60 to spend on a gift for their mom. They want to buy her a bracelet that costs $62.50. What is the minimum discount that they need to be able to buy the bracelet including the CT tax?
Please show your work!

Answers

Answer:

Simplify the expression. 4x - 3 + 8x - 5 - 3x

Step-by-step explanation:

the renaissance is in a black shirt lol i shirt and green shirts and shirts for halloween shirt and shirt shirt and green shirt and shirt shirts lol i shirts shirts shirt and shirt shirts shirts shirt shirt.

Solve each system by elimination
8/11y+3/11=-x
-21=56y+77x

Answers

Answer:

Find the least common denominator (LCD) by factoring each denominator multiple ... -77x+11_- Tx 5.6X-5 – 2x-3_24x 6. ... 11y-3 = 14 - 2x ... 2x=-16. 1. x+y=-1 x 3-8. Solve each system of linear equations by substitution. ... elimination method.

Step-by-step explanation:

The answer is y=-11x-3/8

Please help meeeeeeeeeeeeeeee

Answers

Answer: the answer would be 143*

Explanation:
A line is 180, and angle T is 37. Subtract 180 - 37 = 143

Combine the like terms to create an equivalent expression:

-5j+(-2j)+3

Answers

Answer:

-7j + 3

Step-by-step explanation:

easy

Sarah has all of the letters for the word WATERMELON in a bag. She chooses one letter, KEEPS it, then chooses another letter. What is the probability that she will choose the letter A and then the letter W?

1/9
1/18
1/90
2/9

Answers

Answer:

2/9

Step-by-step explanation:

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