2 years ago

The difference of A and B is 3 the sum of A and B is 13 what are the values of a and b

Mathematics

1 answer:

katen-ka-za [31]2 years ago

8 0

Answer:

a = 8 and b = 5

Step-by-step explanation:

A - B = 3

A + B = 13

2A = 16

A = 8

8 - B = 3

B = 5

You might be interested in

The product of two numbers is −72. One of the factors is −9, what is the other factor?

frez [133]

The other factor is eight because 9 multiplied by eight is 72 and a negative times a positive is a negative

4 0

2 years ago

Read 2 more answers

Find a common factor for 3y^3+2y^2 and 6y^4+4y^3

Anit [1.1K]

Answer:

$3y + 2$

Step-by-step explanation:

We want to find a common factor for

$3 {y}^{3} + 2 {y}^{2}$

and

$6 {y}^{4} + 4 {y}^{3}$

We factor each of them to get;

$3 {y}^{3} + 2 {y}^{2} = {y}^{2} (3y + 2)$

and

$6 {y}^{4} + 4 {y}^{3} = 2 {y}^{3} (3y + 2)$

We can observe now that;

The factor common to both expression is

$3y + 2$

7 0

2 years ago

What is the distance between points A and B shown in the graph below

Bas_tet [7]

Answer:

$D = 7\sqrt 2$

Step-by-step explanation:

Given

$A = (-3,-4)$

$B = (4,3)$

Required

The distance between them

This is calculated as:

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

So, we have:

$D = \sqrt{(3-(-4))^2+(4-(-3))^2}$

$D = \sqrt{7^2+7^2}$

$D = \sqrt{2(7^2)}$

$D = 7\sqrt 2$

3 0

2 years ago

If Adrianna can read 7 pages in 10 minutes. At this rate, how many page can she read in 25 minutes?

lesya692 [45]

3.5 : 5

7 : 10

14 : 20

17.5 : 25

At that rate, she can read 17.5 pages in 25 minuets.

Divide both 7 and 10 by 2, which gets 3.5 and 5

5 * 5 = 25

5 * 3.5 = 17.5

Therefore, in 25 minuets, she can read 17.5 pages.

4 0

3 years ago

Read 2 more answers

What is the length of side a? Thank u

Anna007 [38]

Side a is 13 when using the pythagorean theorem

a^2 + b^2 = c^2
5^2 + 12^2 = c^2
25 + 144 = c^2
c^2 = 169
c = 13

4 0

2 years ago