Math Quiz 2

• 0

Answer explanation

Substitute r = 0 into the expression: (5(0) + 1/5)^2 = (1/5)^2 = 1/25. Therefore, the value is 1/25.

Tags

CCSS.6.EE.A.2C

During a weekend, a store owner gave away gift cards to every 80th visitor. If 1,210 people visited on Saturday, and 1814 on Sunday, how many people received a gift card?

• 37

• 38

• 39

• 40

Answer explanation

To find the number of people who received a gift card, divide the total number of visitors by 80. For Saturday: 1210 / 80 = 15.125, rounded down to 15. For Sunday: 1814 / 80 = 22.675, rounded down to 22. Total: 15 + 22 = 37 people received a gift card.

Tags

CCSS.4.OA.B.4

Nina bought 12.2 gallons of gas at $3.45 per gallon. How much did she spend in total?

• $42.09

• $40.29

• $41.19

• $43.99

Answer explanation

To find the total amount spent, multiply the gallons purchased (12.2) by the price per gallon ($3.45): 12.2 * $3.45 = $42.09. Therefore, Nina spent a total of $42.09.

Tags

CCSS.7.EE.B.3

• 1.608

• 16.08

• 160.8

• 0.1608

Answer explanation

To find the value of 1608 divided by 10^3, we divide 1608 by 1000, which equals 1.608. Therefore, the correct value is 1.608.

Tags

CCSS.5.NBT.A.2

• 20 times

• 18 times

• 15 times

• 22 times

Tags

CCSS.6.NS.A.1

An airplane travels at a constant speed of 320 miles per hour. How far, in miles, will the airplane travel in 15 minutes?

• 80 miles

• 40 miles

• 120 miles

• 60 miles

Answer explanation

The airplane travels at a speed of 320 miles per hour. In 15 minutes (1/4 of an hour), it will cover 1/4 * 320 = 80 miles. Therefore, the airplane will travel 80 miles in 15 minutes.

Tags

CCSS.6.RP.A.3B

• 5.5 weeks

• 6.5 weeks

• 5.9 weeks

• 4.5 weeks

Answer explanation

Choose 5.5 weeks as Ben can work 15.5 hours per week. Divide total hours by weekly hours to get the answer.

Tags

CCSS.7.EE.B.3

• 3

• 9

• 27

• 28

Answer explanation

To find x, multiply both sides by 3 to get x = 28.

Tags

CCSS.6.EE.B.7

Annie has finished 12 of the 20 lessons in her piano book. Wade has finished the same percent of lessons from his piano book. His book contains 30 lessons. How many lessons has Wade finished?

• 18

• 15

• 20

• 12

Answer explanation

Since Annie finished 12 lessons out of 20, she completed 60% of the lessons. Wade finished the same percent of lessons, which is 60% of 30 lessons, equaling 18 lessons.

Tags

CCSS.6.RP.A.3C

• 2

• 1

• 4

• 8

Answer explanation

Substitute m=4 and n=1/2 into the expression m/(8n) to get 4/(8*(1/2)) = 4/4 = 1. Therefore, the value of the expression is 1.

Tags

CCSS.6.EE.A.2C