Amanda, Bryan, and Colin are in a book club. Amanda reads twice as many books as Bryan per month and Colin reads 4 fewer than 3 times as many books as Bryan in a month. In 4 months the number of books Amanda reads is equal to 5/8 the sum of the number of books Bryan and Colin read in 4 months. How many books does each person read each month?

Answers

Answer 1

Answer: A=2bC=3b-4. A=5/8x4 = b+cx4If Brian read let's say 3 books a month then amanda reads 6 and Collin reads 5So the answer would be B= Brian's books. A= Amanda's books and c= Collins booksSo a=2xbB=bC=(3b)-4

Answer:

The unit rate is 75/1.

Step-by-step explanation:

To figure out this problem you have to divide.

375 divided by 5 is equal to 75.

Therefore the unit rate is 75/1.

Hope this helps and have a great day!!!

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What is the value of 4a3 – 2b2 + 5 when a = 3 and b = −2

Answers

4a^3-2b^2+5
4(3)^3-2(-2)^2+5
4(27)-2(4)+5
108-8+5
100+5
105

Explain a real world situation where you would. need to multiply with negative or rational numbers

Answers

Let us say you must pay someone ten dollars a month. This is the same as being paid negative ten dollars a month. Ten months ago (in negative ten months) you were 100 dollars richer *. (-10)x(-10)=100

What two numbers multiply to 100 and add to 20???

Answers

$10*10=100 \n 10+10=20 \n \n \boxed{10\ and\ 10}$

10 times 10 equals 100
10 plus 10 equals 20 OR 50*2=100
it is 10 2+18=20 it is 2

Gus bought a pair of sunglasses for $45.00 and then sold them to his friend for $58.50. What percent did Gus mark up the sunglasses before selling them?

Answers

30% First find the difference between the two (58.50-45) then divide the difference by the original (13.5/45) and that will give you .30 to make it a percent move the decimal two places to the right :)

First we want to subtract 58.50 by 45.00. what is the answer

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