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Lubov Fominskaja [6]
3 years ago
15

Use the original price and the markdown to find the retail price. Original price: $100; Markdown: 28%. What is retail price ?​

Mathematics
1 answer:
Rasek [7]3 years ago
4 0

Answer:

$72 is the retail price

Step-by-step explanation:

100 x (100-28)/100

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Step-by-step explanation:

all you do is multiply 27 and 18. i feel like using compatible numbers bc the numbers you have will give you your answer.

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Which group of three squares will form a right triangle when<br> joined at their vertices?
Ilia_Sergeevich [38]

Answer:

Option ?) 17 cm, 15 cm, 8 cm

<em>The assignment should have </em><em>four options</em><em> to choose from, but there is only a picture of two. </em>

Step-by-step explanation:

<em>None of the squares </em><em>shown</em><em> form a right triangle. To determine if sides form a right triangle, you use </em><em>this</em><em> formula:</em>

a²+b²=c²

<em>We are given two options in the picture.</em>

Option A) 18, 10, and 8.

Option B) 12, 9, and 6.

<em>So, now we need to apply the formula:</em>

Option A)

║8² + 10² = 18²

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║64 + 100 = 324

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║FALSE

Option B)

║6² + 9² = 12²

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║36 + 81 = 144

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<em>Both of these options are false.</em><em> But, I decided to look up this assignment to check my answer. It turns out, there are </em><em>4 options</em><em>, and you only had a picture of two. So, what's the answer?</em>

<em />

<em>There is an answer choice that shows 3 squares with the lengths of 17 cm, 15 cm, and 8 cm. </em><em>This is the correct answer</em><em>.</em>

<em />

<em>For proof, let's apply the formula:</em>

Option ?)

║8² + 15² = 17²

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║64 + 225 = 289

  ↓

║TRUE

<em>[Since the option isn't shown, I'll put a '?' so there is no confusion]</em>

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2 years ago
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The answer is 40/3

your welcome! :3

7 0
3 years ago
Substitute x = 5 into the expression (-2)x + 6. Do you get -4? Substitute x = -1 into the expression (-2)x + 6. Do you get - 4 W
8090 [49]

Answer:The first method, by substituting  5 into the expression   (-2)x + 6 gives the coreect answer of   -4

Step-by-step explanation:

Ist method

Substituting  x = 5 into the expression   (-2)x + 6,  we have

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2nd method

Substitute x = -1 into the expression (-2)x + 6,we have

(-2)(-1) + 6

2  +6=10

The first method, by substituting  5 into the expression   (-2)x + 6 gives the coreect answer of   -4

7 0
2 years ago
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