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Dvinal [7]
3 years ago
13

Solve the equation

Mathematics
1 answer:
Klio2033 [76]3 years ago
4 0

Answer:

x = 25

Step-by-step explanation:

.20x + .68(120 - x) = .54(120) (Distribute .68 to 120 and -x)

.20x + 81.6 - .68x = .54(120) (multiply .54 and 120)

.20x + 81.6 - .68x = 69.6 ( add .20x and -.68x)

-.48x + 81.6 = 69.6 ( subtract 81.6 on each side)

-.48x = -12 (divide -12 by -.48)

x = 25

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Answer:

$1250

Step-by-step explanation:

6 1/4 × 4 = 25

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Cost = $1250

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3 years ago
A jar contains 20 marbles: 6 are brown, 2 are gray, 5 are black, and 7 are white. A black marble is removed and replaced before
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6 0
3 years ago
Simplify the following expression.<br><br> 99 - 3[15 - (2 + 1)]
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Answer:

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Type the correct answer in each box. Use numerals instead of words. Based on the Pythagorean theorem, find the missing length fo
Neporo4naja [7]

Answer: See below

Step-by-step explanation:

The Pythagorean Theorem is a²+b²=c². Since each problem gives us the length of a, b, or c, we can directly plug them into this equation and solve.

Triangle EFG

9²+b²=41²

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Triangle PQR

20²+21²=c²

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c=√841

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Triangle XYZ

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3 years ago
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