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posledela
3 years ago
11

Jayden used a Groupon at the local pizza shop. Instead of paying $15, for the pizza, he paid $12.

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0

Answer:

She is correct because they need to find how much is the discounted price, which is 3. So to see what percentage it is, they need to see how much 3 is worth in comparison to 15. If we spilt 15 into 5 parts to make every part worth 20%, the answer would be 3. Thus Arianna is correct.

Step-by-step explanation:

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Solve either equation for either variable. Since the second one has y on its own, the easiest choice is to solve that for y.

-5x + y = 13   ⇒   y = 5x + 13

Now substitute this into the other equation to eliminate y and rewrite it entirely in terms of x :

-3x + 3y = 3   ⇒   -3x + 3 (5x + 13) = 3

Simplify and solve for x :

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Substitute this into either original equation to solve for y. Plugging x = -3 into the first equation would give

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8 0
1 year ago
Find angle A and angle E
riadik2000 [5.3K]

Answer:

m∠A = 50°

m∠E = 50°

Step-by-step explanation:

7x - 17 and 2x + 8 are same side exterior angles. They have a sum of 180°.

7x - 17 + 2x + 8 = 180

9x - 9 = 180

9x = 189

x = 21

∠A and 7x - 17 are supplementary. ∠E and 2x + 8 are vertical angles.

m∠A + 7x - 17 = 180

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m∠A + 147 - 17 = 180

m∠A + 130 = 180

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m∠E = 2x + 8

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m∠E = 50

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<span>The resent value, also called "discounted value," is the current worth of the camera. So, we know that the discounted value is $105.00.
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So, the discount is 100-87.5=12.5 %.
</span>
7 0
3 years ago
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