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AveGali [126]
3 years ago
10

What is the percent

Mathematics
1 answer:
Lyrx [107]3 years ago
8 0

3.9/x=100/78

(3.9/x)*x=(100/78)*x - we multiply both sides of the equation by x

3.9=1.28205128205*x - we divide both sides of the equation by (1.28205128205) to get x

3.9/1.28205128205=x

3.042=x

x=3.042


now we have:

78% of 3.9=3.042

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marissa [1.9K]

Answer:

x = -4

Step-by-step explanation:

Take out 3x from both sides:

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2x           =   0

2x + 9 = 1

Take out 9 from both sides:

9 - 9             =       1 - 9

0                  =      -8

Divide 2 from both sides:

\frac{2x}{2} = \frac{-8}{2}

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3 years ago
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OLEGan [10]
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4 0
3 years ago
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A pile of earth removed from an excavation is a cone measuring 12 ft high and 30 ft across its base. How many trips will it take
sattari [20]

Answer:

12 trips

Step-by-step explanation:

Given;

Dimension of cone shapef pile of earth;

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ad-work [718]
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What is an equation to show the relationship between 7 meters and 0.007 kilometers
Dafna11 [192]

Answer:

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or

0.001 kilometers = 1 meter

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