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2 years ago

Y = 0.115x + 0.0045 , y = 0.499x – 0.22 solve for x

Mathematics

1 answer:

enyata [817]2 years ago

6 0

Answer:

x=0.5612

Step-by-step explanation:

-Given the functions:

$y=0.115x+0.0045\ \ \ \ ...i\\\\y=0.499x-0.22\ \ \ \ \ ...ii$

We subtract equation i from ii to eliminate y and solve for x:

$ii-i\\\\0=0.384x-0.2155\\\\0.384x=0.2155\\\\x=0.5612$

Hence, the value of x is 0.5612

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Let the cost of one cup of hot chocolate be = x

Let the cost of one cup of hot tea be = y

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$y=\frac{2x}{3}$ .... (2)

Putting the value of y from (2) in (1)

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