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arlik [135]
3 years ago
10

4x = 18-y, if x=2 and y=6

Mathematics
1 answer:
yarga [219]3 years ago
3 0
If you're using substitution, solve for the first variable in one of the equations, then substitute the result into another equation. your answer is no solution:

x = 2 ; y = 6

4x = 18 - y
4 (2) = 18 - 6
8 = 12

8 does not equal 12, there is no solution
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A truck can be rented from Company A for ​$70 a day plus ​$0.20 per mile. Company B charges ​$20 a day plus ​$0.40 per mile to r
Otrada [13]

Answer:

For Company A to have a better deal, the truck must be driven more than 250 miles per day.

Step-by-step explanation:

Given that:

Rent per day of company A = $70

Per mile charges = $0.20

Let,

x be the number of miles.

A(x) = 0.20x + 70

Rent per day of company B = $20

Per mile charges = $0.40

B(x) = 0.40x + 20

For make Company A better deal,

A(x) > B(x)

0.20x+70 > 0.40+20

0.20x-0.40x>20-70

-0.20x>-50

Dividing both sides by -0.20

\frac{-0.20x}{-0.20}>\frac{-50}{-0.20}\\x>250

Hence,

For Company A to have a better deal, the truck must be driven more than 250 miles per day.

8 0
3 years ago
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5 0
2 years ago
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Ainat [17]

Answer:

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Step-by-step explanation:

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3 years ago
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tigry1 [53]

Answer:

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Step-by-step explanation:

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7 0
1 year ago
What is the answer?!
Brut [27]
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2 years ago
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