3 years ago

john has x years his sister has 2 years more if the sum of their age is 10 what is the age of her sister

Mathematics

1 answer:

sveta [45]3 years ago

7 0

John is 4 and his sister is 6.

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Step-by-step explanation:

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2 years ago

Explain why 1.55 centimeters is a reasonable answer for the difference in the wingspans of the two butterflies

melamori03 [73]

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3 years ago

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2 years ago

Find the slope of the line through the points (6,16) and (−6,4)

MakcuM [25]

$m = \frac{y2-y1}{x2-x1}$

$m = \frac{4-16}{-6-6} \\m = \frac{-12}{-12} \\\\m = 1$

Therefore, the slope of the line is 1. In case if you want to know the equation.

$y=mx+b\\y=x+b\\4=-6+b\\4+6=b\\10=b\\$

Therefore, the equation is y=x+10 by substituting the (-6,4) or we can substitute (6,16) too.

$y=mx+b\\y=x+b\\16=6+b\\16-6=b\\10=b\\$

It's the same, you can use any orders given.

Overall, the slope is 1 and the equation is y=x+10

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