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3 years ago

Austin mowed 7 lawns in 4 hours. At that rate, how long will it take to mow 21 lawns?

Mathematics

1 answer:

cestrela7 [59]3 years ago

3 0

Answer:

Step-by-step explanation:

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5x-4y when x=-2 and y=3

scoray [572]

Answer:

=-22

Step-by-step explanation:

first you fix the x and y into the eqution.

5(-2)-4(3)

Mulitiply and divide (left to right)

5(-2)=-10

mulitply and divide (left to right)

4(3)=12

so the would make the problem look like this

-10-12

add and subtract (left to right)

-10-12=-22

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3 years ago

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The last one since there are no solutions

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Ronch [10]

Answer:

Step-by-step explanation:

$- |3a + \sqrt{b} |$

By putting the values of a = -4 , b = 9,

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$= - | - 9|$

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= -9 (Ans)

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3 years ago

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4 years ago

Simplify 5(6x+1)+3(7x+-5) please

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5(6x+1)+3(7x+-5)
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4 years ago

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