4 years ago

Explain why you would make one of the addends a tens number when solving an addition problem

Mathematics

1 answer:

Marianna [84]4 years ago

5 0

Because your adding on 10more

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The area of a rectangular bathroom floor is 53 5/8 feet. If the bathroom is 6 1/2 feet wide, What is the length?

gulaghasi [49]

<h3>- - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - </h3>

➷ Simply divide the values:

(53 5/8)/ (6 1/2) = 8 1/4

Your answer is A. 8 1/4 feet

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If 30 is 50% of a value, what is that value?

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3 years ago

Sum10and product of 9

AVprozaik [17]

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$x+ y = 10 ---(1)\\ x\cdot y = 9 ---(2)\\\\from(2) \ y = \frac{9}{x}\\\\substitute \ y \ in (1) \\x + \frac{9}{x} = 10\\\\x^2 + 9 - 10x = 0\\x^2 -10x + 9 = 0\\x^2 -9x -x +9 = 0\\x(x-9)-1(x-9)=0\\(x-1)(x-9)=0\\x = 1 \ or \ 9\\$

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