Word Problems (Part 1)

Sarah has 70 mL of 50% methane solution. How much of an 80% solution must she add so that the final solution is 60% methane?

(Just enter the number answer. No labels)

Tags

CCSS.8.EE.C.7B

An airplane flies 750 miles due west in 1.5 hours and 750 miles due south in 2 hours. What is the average speed of the airplane?

(Round to the nearest tenth. NO LABELS)

Tags

CCSS.HSN.VM.A.3

Two trains leave their stations at the same time. The stations are 150 miles apart. Train A is traveling at an average speed of 55 miles per hour and Train B is traveling at an average speed of 65 miles per hour. How long after departing will the trains pass eachother?

(NO LABELS)

Tags

CCSS.HSA.CED.A.1

In Allie's candy shop, chocolate, which sells for $4 a pound is mixed with peanuts which are sold for $2.50 a pound. This mixture sells for $3.50 a pound. How many pounds of chocolate are needed to make 30 pounds of the mixture?

(NO LABELS)

Tags

CCSS.8.EE.C.7B

Jackson has $4.85 in coins. If he has six more nickels than dimes and twice as many quarters as dimes, how many dimes does he have?

(NO LABELS)

There are three consecutive even integers such that the sum of the smallest and twice the second is 8 more than the third. What is the value of the smallest?

Tags

CCSS.8.EE.C.7B

The sum of two consecutive even integers is -170. Find the larger number.

Tags

CCSS.8.EE.C.7B

We have a jar of coins, all quarters and dimes. All together, they are worth $17.60. We have 13 more quarters than dimes. How many quarters do we have?

(NO LABELS)

Tags

CCSS.8.EE.C.8C

How many gallons of 3% acid solution must be mixed with 60 gallons of 10% acid solution to obtain an acid solution that is 8%?

(NO LABELS)

Tags

CCSS.8.EE.C.7B

Tino drove for 2 hours at 25 mph and 3 hours at 40 mph. Find his average rate.

Tags

CCSS.8.EE.B.5