3 years ago

Pe ling needs 2 yards of fabric for a craft project . she has 3 feet already how many inches of fabric dose she still need

Mathematics

1 answer:

IRINA_888 [86]3 years ago

4 0

She need 3 more feet

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The value of (x-y) is 16

Further explanation:

We have to use the given values to find the value

Given

$x+y=4\\and\\x^2-y^2=64$

We will use:

$x^2-y^2=64$

Simplifying by using: $x^2-y^2=(x+y)(x-y)$

So,

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As we know that x+y=4

Putting the value in equation

$(4)(x-y)=64$

Dividing both sides by 4

$\frac{4(x-y)}{4}=\frac{64}{4}\\x-y=16$

The value of (x-y) is 16

Keywords: Algebraic formulas, Simplification

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