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Andru [333]
4 years ago
15

A brush cost $2 more than a comb. The brush and come together cost $3.78. Find the cost of each

Mathematics
2 answers:
Anuta_ua [19.1K]4 years ago
7 0
So:
brush = comb+2

Total: comb + (comb+2) = 3.78 
2 * comb + 2 = 3.78  /-2
2 * comb = 1.78 /divide by 2
comb = 0.89

brush = 0.89 + 2 = 2.89
Ymorist [56]4 years ago
4 0
3,78-2=1.78
1.78/2=0.89
0.89+2=2.89
cepillo=2.89
peine=0.89
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Step-by-step explanation:

We have to first find the vertices of the feasible region before we can determine the max value of P(x, y). We will graph all 4 of those inequalities in a coordinate plane and when we do that we find that the region of feasibility is bordered by the vertices (0, 0), (0, 1), (2, 3), and (5, 0). Filling each x and y value into our function will give us the max value of that function.

Obviously, when we sub in (0, 0). we get that P(x, y) = 0.

When we sub in (0, 1) we get 24(0) + 30(1) = 30.

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