3 years ago

For the expression 5-5x to have a negative value, what must be true about the value of x?

Mathematics

1 answer:

storchak [24]3 years ago

7 0

X has to be greater than 1

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Suppose that 12 inches of wire cost 48 cents at the same rate how many inches of wire can be bought for 28 cents

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7 in

Step-by-step explanation:

If 12 inches of wire can be bought for $0.48, we can set up the following ratio:

$\frac{12\text{ in}}{\$0.48}$

Then, to determine how many inches of wire can be bought for $0.28, set up equivalent fractions, as such:

$\frac{12\text{ in}}{\$0.48}=\frac{x}{\$0.28}$

Then, cross-multiply and solve for $x$ :

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