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PSYCHO15rus [73]
3 years ago
6

The product of my number and twice my number is 128 what is half my number

Geography
1 answer:
Ad libitum [116K]3 years ago
8 0

Let's call your number n. Twice your number is 2n. The product of your number and twice your number (so n multiplied by 2n) is 128.

Set up an equation:

n × 2n = 128

2n² = 128

Divide both sides by 2:

n² = 64

Square root both sides to isolate n:

n = 8


The question asks for half your number, so just half 8:

8 ÷ 2 = 4.


Half your number is 4.

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