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PIT_PIT [208]
3 years ago
13

Solve the following system of equations. 0.12x - 0.07y = -1.35 0.4x + 0.8y = 4.8

Mathematics
1 answer:
Nat2105 [25]3 years ago
6 0

Answer:

x = -6 and y = 9

Step-by-step explanation:

It is given that,

0.12x - 0.07y = -1.35    -----(1)

0.4x + 0.8y = 4.8   -----(2)

<u>To find the value of x and y</u>

eq(1) * 100 ⇒

12x + 7y = -135   -----(3)

eq(2) /0.4 ⇒

x + 2y = 12   -----(4)

eq(4) * 12 ⇒

12x + 24y = 144   ---(5)

eq(5) - eq(3) ⇒

12x + 24y = 144   ---(5)

<u>12x - 7y = -135 </u>  -----(3)

 0  + 31y = 279

y = 279/31 = 9

Substitute the value of y in eq(4)

x + 2y = 12   -----(4)

x + 2*9 = 12

x = 12 - 18 = -6

Therefore x = -6 and y = 9

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A home gardener estimates that 24 apple trees will have an average yield of 104 apples per tree. But because of the size of the
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Answer:

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Step-by-step explanation:

Given

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x \to additional\ trees

So, we have:

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Required

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The function is:

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Open bracket

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