Question

1. find the value of one unit of the bar model. *

70
your answer

1. what is the prime factorization of 48? *

Explanation:

Question 18

Step1: Count the number of units

The bar model has 7 equal units.

Step2: Divide total by units

Total value is 70, so one unit is $70 \div 7 = 10$.

Step1: Start dividing by smallest prime

Divide 48 by 2: $48 \div 2 = 24$

Step2: Continue dividing by 2

$24 \div 2 = 12$; $12 \div 2 = 6$; $6 \div 2 = 3$

Step3: Divide by next prime (3)

$3 \div 3 = 1$

Step4: Write prime factors

Prime factors are $2 \times 2 \times 2 \times 2 \times 3 = 2^4 \times 3$

Answer:

10

Question 19