Justin is evaluating the expression 12.5 + 3.8 x, when x is 7.9. 12.5 + 3.8 (7.9). 16.3 (7.9). 128.77. What was Justin’s error?

asked Dec 20, 2021 6.0k views

1 vote

Justin is evaluating the expression 12.5 + 3.8 x, when x is 7.9.

12.5 + 3.8 (7.9). 16.3 (7.9). 128.77.

What was Justin’s error?

3.3k points

Please log in or register to add a comment.

2 votes

PEMDAS
He should have multiplied before adding
12.5 + 3.8(7.9)
12.5 + 30.02
42.52

Anupam Roy answered Dec 27, 2021

3.7k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.8m questions

4.9m answers