Question

Isme estimated that there are 50 students in the seventh-grade class. There are actually 40 students in the seventh-grade class.

A. What is Isme's percent error?

B. Out of the 40 students in the seventh-grade, 60% of the students carry a cell phone. What fraction of the students in the seventh grade class carry a cell phone? How many students in the seventh grade class carry a cell phone/

Answer 1

A) 25%

B) fraction: ⅗

Number: 24

Explanation:

Error: 50 - 40 = 10

%error = 10/40 × 100 = 25%

60% = 60/100 = ⅗

⅗ × 40 = 24