Sam solved the proportion3 = 5, but she has some mistakes in her solution. read her steps carefully, and then answer the questions. step 1: (x + 5)1 = 4(x + 2)step 2: x + 5 = 4x + 8step 3: 5 = 3x + 8step 4: 3= 3xstep 5: -1=1millpart a: in which step did sam make her first mistake? part b: what is sam's first mistake? select one answer for part a, and select one answer for part b.

A. Step One

B. She multiplied straight across in the proportion instead of diagonally

Step-by-step explanation:

A. Step One

B. She multiplied straight across in the proportion instead of diagonally

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:

i got 86 for this

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