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nydimaria [60]
3 years ago
7

X+2y=10 Y=4x-22 solve the system by substitution method

Mathematics
2 answers:
mr_godi [17]3 years ago
6 0

Answer:

{x,y} = {3,5}

earnstyle [38]3 years ago
5 0

Answer:

(6, 2 )

Step-by-step explanation:

Given the 2 equations

x + 2y = 10 → (1)

y = 4x - 22 → (2)

Substitute y = 4x - 22 into (1)

x + 2(4x - 22) = 10 ← distribute and simplify left side

x + 8x - 44 = 10

9x - 44 = 10 ( add 44 to both sides )

9x = 54 ( divide both sides by 9 )

x = 6

Substitute x = 6 into (2) for corresponding value of y

y = (4 × 6) - 22 = 24 - 22 = 2

Solution is (6, 2 )

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4 years ago
A phone company chargers each customer a monthly fee of $10.75. In addition, it charges $0.03 per minute for in-state calls and
ozzi

Answer:

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Step-by-step explanation:

In order to find the total monthly charge for the customer, you can set up an equation using two different variables and putting in the charges and number of calls for each.  

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8 0
3 years ago
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