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yaroslaw [1]
3 years ago
10

Vivian bought 6 bottles of cooking oil. She gave the cashier $40 and expected $y change. (a) express the cost of 1 bottle of coo

king oil in terms of y. (b) if y=10, find the cost of 1 bottle of cooking oil. (c) if y=1, find the cost of 1 bottle of cooking oil.
Mathematics
2 answers:
MariettaO [177]3 years ago
8 0
Prize of 6 botl= 40-y
prize of 1 botl will 40-y/6
if y=10
then prize of 1 bottle is 5
OleMash [197]3 years ago
4 0

Answer:

Part (a) The required equation is y=40-6x.

Part (b) If y=10, the cost of 1 bottle of cooking oil is $5.

Part (c) If y=1, the cost of 1 bottle of cooking oil is $6.5.

Step-by-step explanation:

Consider the provided information.

Let the cost of each bottle of cooking oil is $x.

Vivian bought 6 bottles of cooking oil.

Thus the cost of 6 bottles of cooking oil is 6x.

She gave the cashier $40 and expected $y change.

This can be written as:

y+6x=40

Part (a) express the cost of 1 bottle of cooking oil in terms of y.

y+6x=40

Subtract both sides by 6x.

y=40-6x

The required equation is y=40-6x.

Part (b) if y=10, find the cost of 1 bottle of cooking oil.

Substitute the respective values in the above equation.

10=40-6x

-30=-6x

x=5

If y=10, the cost of 1 bottle of cooking oil is $5.

Part (c) if y=1, find the cost of 1 bottle of cooking oil.

Substitute the respective values in the above equation.

1=40-6x

-39=-6x

x=6.5

If y=1, the cost of 1 bottle of cooking oil is $6.5.

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