Question

Rewrite the expression using the GCF and the distributive property (39+91)

Answer 1

Answer:

1. $13\cdot (3+7)$

2. $2,520

Step-by-step explanation:

1. Given numbers 39 and 91. Factorize them:

$39=3\cdot 13\\ \\91=7\cdot 13,$

then

$GCF(39,91)=13$

Use distributive property:

$39+91=3\cdot 13+7\cdot 13=13\cdot (3+7)$

2. Month salary = $2,100

To find 10% of $2,100, just multiply $2,100 by 0.1 (because 10% is 0.1 as decimal):

$\ 2,100\cdot 0.1=\ 210$

$210 is the monthly tax, then the year tax is

$\ 210\cdot 12=\ 2,520$