Danny worked 40 hours and earned $6.30 per hour. His friend Erica earned $8.40 per hour at her job. How many hours would Erica have to work in order to equal
Dannys earnings for 40 hours?

Correct Answer: C 🗳️
Danny earned a total of 40($6.30) = $252. To find the number of hours Erica would take to earn $252, divide $252 by $8.40.

∆ ABC is a right triangle, and
┴
. If the measure of CAD = 40°,w hat is the measure of DCB?
∠
∠

Correct Answer: C 🗳️

Since m ACB = 90 and m CAD = 40, then m B = 180 90 40 = 50. In BCD, m CDB =90 and m B = 50. Therefore, m DCB = 180 90 50 = 40.

The number of students in a class is x. One day, 5 students were absent. What fractional part of the class was present?

Correct Answer: E 🗳️

If the class has x students and 5 students are absent, then x 5 students are present:

The gauge on a water tank shows that the tank is1/3full of water. In order to fill the tank, 16 gallons of water are added. How many gallons of water does the tank hold when full?

Correct Answer: B 🗳️





If the tank is full, it is empty. Let x= the capacity of the tank; x= 16, so x= 16 = 16
= 24.