Chris paid $36 for 3 tank tops and 2 t-shirts. a t-shirt cost 3 times as much as a tank top. how much did chris pay for the 2 t-shirts

$24

Step-by-step explanation:

Price of tank-top: x

Quantity of tank-tops: 3

Price of T-shirts: 3x

Quantity of T-shirts: 2

(price of tank top x quantity of tank tops) + (price of T-shirts x quantity of T-shirts) = 36

3x + 2(3x) = 36

3x + 6x = 36

9x = 36

x = 36/9

x = 4

price of 1 T-shirt = 3x = 3(4) = 12

Price of 2 T-shirts = 12 x 2 = $24

Therefore, Chris paid $24 for the 2 T-shirts.

use the power rule  

( a b ) n = a n b n

to distribute the exponent.

apply the product rule to  

3 x 2 y 3 . ( 3 x 2 ) 2 ( y 3 ) 2

apply the product rule to  

3 x 2 . 3 2 ( x 2 ) 2 ( y 3 ) 2

raise  

3

to the power of  

2 . 9 ( x 2 ) 2 ( y 3 ) 2 multiply the exponents in   ( x 2 ) 2

.

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 2 ⋅ 2 ( y 3 ) 2

multiply  

2   by   2 . 9 x 4 ( y 3 ) 2

multiply the exponents in  

( y 3 ) 2 .

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 4 y 3

⋅

2

multiply  

3   by   2 . 9 x 4 y 6

step-by-step explanation:

a .4y4

hope this !