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3 years ago

6

Supergirl had a gift card for a local movie theater. Each time she went to the movies, the balance remaining on the card decresa

sed by $8.50. What number represents the total change in value on her card after she went to the movies 4 times?

1 answer:

Karolina [17]3 years ago

7 0

It is not possible to answer since we do not know the amount of money the gift card has. what ever the amount is just subtract $34

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════ ⋆★⋆ ════

$\mathbb{A~N~S~W~E~R~:}$

$= r$ · $2$

➡ $\Huge \sf \mathbb \color{}\underline{\colorbox{ANSWER~WITH~EXPLANATION ~!}{}}$

$\mathfrak{apply~the~fraction~rule: }$ $a$ $\frac{b}{c} =\frac{a~. ~b }{c}$

$\mathfrak{apply~rule: }$ $a$ · $1 = a$

$r$ · $1$ · $4 = r$ · $4$

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$\mathfrak{divide~the~numbers~: }$ $\frac{4}{2} = 2$

$= r$ · $2$

So, your answer will be is :

$= r$ · $2$

$\color{}{Hope\:it\:helps. ..}$

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$\mathbb{A~N~S~W~E~R~:}$

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3 years ago

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<h2>a = 400/21, b = 580/21</h2>

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

$\dfrac{a}{20}=\dfrac{20}{21}$ <em>cross multiply</em>

$21a=(20)(20)$ <em>divide both sides by 21</em>

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For b, we can use the Pythagorean theorem:

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