Lesson check (4.0a. a.2)
1. sari has 3 times as many pencil erasers as
sam. together, they have 28 erasers. how
many erasers does sari have?

Let x be how many erasers Sari has and y be for Sam's.

x = 3y

x + y = 28

y = 28 - x

x = 3(28 - x)

x = 84 - 3x

4x = 84

x = 21

Sari has 21 erasers

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.