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zaharov [31]
3 years ago
13

Solve each system of equation by substitution y=-x+5 x+2y=2​

Mathematics
1 answer:
Likurg_2 [28]3 years ago
3 0

Answer:

x = 8

y = -3

Step-by-step explanation:

Given :

y = -x + 5 ...................... equation 1

x + 2y = 2 ........................ equation 2

solving the system of linear equation by substitution method , substitute equation 1 into equation 2 , that is

x + 2(-x+5) = 2

x - 2x + 10 = 2

-x + 10 = 2

collect the like terms

10 - 2 = x

therefore :

x = 8

substitute x = 8 into equation 1 to find the value of y , that is

y = -8 + 5

y = -3

Therefore :

x = 8

y = -3

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the table shows the cost of the daycare for Lucy's dog this week her dog went 3 full days of day care and 2 half days of day car
drek231 [11]

An expression for the total cost of the daycare for Lucy's dog this week is T = 3F + 2H and the total cost is equal to $114.

<h3>How to write an expression for the total cost?</h3>

In this exercise, you're required to write an expression for the total cost of the daycare for Lucy's dog this week. Thus, we would assign a variable to the cost for full-day and half-day day care as follows:

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Thus, the total cost of the daycare is given by:

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2 years ago
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Answer:

A.  2 distinct roots.

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