Question

One jar of crushed tomatoes costs $3. How many jars can you buy for $21?

Answer 1

7 Jars

Explanation:

Given

1 jar --------------> costs $3

We can also express this as:

$3 ---------> can buy 1 Jar (i.e the unit rate is $3 per jar)

$1 -----------> can buy (1/3) Jar

$21 ---------> can buy (1/3) x 21 = 7 Jars

Answer 2

7

Explanation:

7x3=21