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3 years ago

Graham drove 42 1/3 miles in 1 1/3 hours. A. How many miles did he drive in one hour?

Mathematics

1 answer:

Nonamiya [84]3 years ago

6 0

change to improper fractions

42 1/3

(3* 42 +1) /3 = 127/3

1 1/3 = (3*1 +1) /3 = 4/3

127/3 divided by 4/3

copy dot flip

127/3 * 3/4

127/4

31 3/4 miles per hour

He drove 31 3/4 miles in one hour

31 3/4 miles 1 mile

------------ = ------------

1 hours x hour

using cross products

31 3/4 * x =1*1

x = 1/ 127/4 (copy dot flip)

x = 1 * 4/127

x = 4/127

it takes 4/127 of 1 hour (approx .03 hours)

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2 years ago

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The recommended dimensions for the garden is as follows:

Length 1 = Length 2 = 20 feet

width 1 = width 2 = 5 feet

depth 1 = 1.5 feet

depth 2 = 3 feet

<u>Given data</u>

The garden should be at least 200 square feet for the for the plants

The volume should be less than 500 cubic feet

<h3>How to get the are at least 200 cubic feet</h3>

The area of the garden available should be the top of both levels

say the top has equal widths of 5 and the length is 20

therefore area of the two levels will be

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The platform has two levels representing two depths say 3 for the higher level and 2 for the lesser level.

Using the same division used for area and adding them together we find the volume as follows:

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