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Usimov [2.4K]
3 years ago
14

Tim earns $31 after 2 hours, $46.5 after three hours,

Mathematics
1 answer:
sladkih [1.3K]3 years ago
6 0

Answer:

Step-by-step explanation:

The clue here is to determine how much he makes in 1 hour, then see if that amount works for 2 hours and 3 hours. If we know that he makes $31 in 2 hours, then 31/2 is $15.50. And $15.50 times 2 hours is $31, and $15.50 times 3 hours is $46.50. So the equation that represents the amount of money Tim makes is y = 15.5x, where y is the amount of money he makes when he works x number of hours at $15.50 per hour.

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What was the percent increase of China's
Rom4ik [11]

The percentage increase China's population from 1970 to 1995 is: 56.25%.

<h3>How to Calculate Percentage Increase?</h3>

Percentage increase = (Final Value - Original Value)/Original value × 100.

Given the following:

Original value = 0.8 billion

Final Value = 1.25 billion

Final Value - Original Value = 1.25 - 0.8

Final Value - Original Value = 0.45

Percentage increase = 0.45/0.8 × 100 = 56.25%.

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4 0
2 years ago
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Darya [45]

Step-by-step explanation:

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8 0
2 years ago
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Anton [14]

Answer:

232/15 [as an improper fraction] or 15 7/15 [as a mixed fraction]

Explanation:

16 - 8 / 15 =

(16) - (8 / 15) =

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(240 - 8) / 15 =

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7 0
2 years ago
uppose that y varies inversely with x. Write an equation for the inverse variation. y = 2 when x = 5
gizmo_the_mogwai [7]

Answer:

An equation for the inverse variation y = 2 when x = 5 is:

y=10/x

Step-by-step explanation:

Suppose that y varies inversely with x:

y=k/x

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Substituting y by 2 and x by 5 in the formula above:

2=k/5

Solving for k: Multiplying both sides of the equation by 5:

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10=k

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Then the equation is:

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Fofino [41]

Answer:

$8505

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315 x 27 = $8505

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2 years ago
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