GED Distance and Cost

How many miles can you travel if you drive at an average speed of 55 miles per hour for 3 hours?

• 55

• 165

• 65

• 100

Answer explanation

You know that the rate is 55 miles per hour and the time is 3 hours

You will need to use the formula:

Distance= Rate x Time

55 x 3 = 165 miles

Tags

CCSS.6.RP.A.3B

At a bakery, a package frosted cookies is priced at $3 per package. If a teacher treats her class by buying 4 packages, how much would the cookies cost before tax?

Use the cost formula below:

Total cost = (number of units) x (price per unit)

• $12

• $65

• $11

• $15

Answer explanation

Using the formula: C=NR

We know that the units purchased is 4 packages.

We know that the price per unit is $3.

4 x $3 = $12

Max bought a set of 4 floor mats for $44. How much wat the price per floor mat?

• $22

• $10

• $11

• $4

Answer explanation

We know that total cost is $44.

We know that the number of units is 4.

Using the cost formula: C=NR

1) Set up the formula plug in the values:

$44= 4r

2) You will need to get r by itself so you will need to perform the opposite operation by dividing both sides by 4

$44/4 = 4r/4

3) Now you have your price per unit

$11 = r

Tags

CCSS.4.NBT.B.6

Find the total cost of 4 flats of plants at $12 each

D=RT or C=NT

• $58

• $48

• $44

• $35

Answer explanation

You will use the cost formula.

C= 4 x $12

C= $48

Tags

CCSS.HSF-LE.A.1B

How long does it take for a bus to travel 25 miles at an average rate of 25 miles per hour?

D = RT or C = NR

• 2

• 10

• 3

• 1

Answer explanation

You will need to use the distance formula:

25 miles = N(25 miles per hr)

25/25 = 25n/25

You will need to get the n by itself and to do so you will need to perform the opposite operation which is division

1 = n

Tags

CCSS.HSF-LE.A.1B

A truck driver traveled 275 miles in 5 hours. What was his average speed in miles per hour?

• 1375

• 280

• 270

• 55

Answer explanation

You will need to use the distance formula:

D = RT

275 miles = R(5 hrs)

275 miles/5 = 5R/5

The object is to get the R by itself, and we do so by performing the opposite operation which is division.

55 = R

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Inventory shows that a warehouse has 45 printers in stock. If each printer is valued at $125, what is the total value of the printer inventory?

• $5625

• $170

• $80

• $45

Answer explanation

Use formula : C=NR

C= 45 x $125

C= $5625

Tags

CCSS.3.OA.D.8

Lydia can drive 180 miles in 3 hours. On Tuesday, she drove for 7 hours at that rate. How many miles did she drive on Tuesday?

• 60

• 420

• 600

• 1260

Answer explanation

You will use D=RT formula

You will need to find the rate of the first set of number given.

180 = R3

180/3 = R3/3

You will perform the opposite operation to get the R by itself. In this case it is division.

60=R

Once you find the rate you will be able to answer the question, how many miles did she drive on Tuesday?

D = 7 x 60

D = 420

Tags

CCSS.6.RP.A.3B