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3 years ago

Please show work

Mathematics

1 answer:

OlgaM077 [116]3 years ago

8 0

Answer:

3.7hours

Step-by-step explanation:

Step one:

A car travels 360 miles in 8 hours

the speed is calculated as

speed= distance/time

speed= 360/8

speed= 45mph

Step two:

How much time will it take traveling 168 miles?

having found the speed, which is the rate at which the car is tavelling

time= distance/speed

time= 168/45

time= 3.7hours

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If 9(1-x) = 27Y and x-y=-11/2, find the value of x + y.

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Answer:

-2.25

Step-by-step explanation:

9(1-x) = 27Y

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9x +27y =9 equation (1)

x-y= -11/2 equation (2)

by solving 2 equations

x= -3.875

y= 1.625

∴ x+ y = 1.625 +(-3.875) = -2.25

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2 years ago

The owner of a convenience store keeps track of how many customer buy lunch food during the "noon rush" each day for four days a

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Answer:

c) 62.

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