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2 years ago

If you double a number and then add 32, the result is 80. what is the number?

Mathematics

2 answers:

forsale [732]2 years ago

6 0

24 is your answer.
80-32
 2

maw [93]2 years ago

3 0

80-32 ÷ 2= 24
( you just do it sdrawkcab)

backwards

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Answer:

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3 years ago

14. Find the Error Hiroshi is determining -42 – (-37). Find his

vaieri [72.5K]

Answer:

Hiroshi's error was not having changed the sign of the number 37 by removing the parentheses and placing -37 instead of +37.

Step-by-step explanation:

we have

Hiroshi's work

$42-(-37)=42-37=5$

Remember that

a negative number is just a positive number multiplied by -1

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Correct work

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3 years ago

-3x^2 plus 24x = 27 complete the square

Rudik [331]

You can divide the whole expression by -3:

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Recalling that

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So, we want to complete

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Which differs from $x^2-8x$ by 16. So, if we add 16 to both sides, we have

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