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3 years ago

13

zane and shelby's grandfather is 5 times as old as the total of their ages. If their grandfather is 70 and Shelby is 6, how many

years old is Zane?

1 answer:

wel3 years ago

7 0

G=5(z+s)
70=5(z+6)
70=5z+30
40=5z
z=8

Zane is 8

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<em><u>The equation of line in slope intercept form is given as:</u></em>

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The slope of line is given as:

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$1 = \frac{-3}{4} \times 3 + c\\\\1 = \frac{-9}{4} + c\\\\ \text{Simplify the above equation } \\\\1 = \frac{-9+4c}{4}\\\\4 = -9 + 4c\\\\13 = 4c\\\\\text{Divide both sides by 4 }\\\\c = \frac{13}{4}$

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