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Lunna [17]
2 years ago
13

The number of wrecks at a certain intersection varies directly as the number of cars that travel through the intersection. If th

ere are 31 wrecks when 1,085 cars have traveled through the intersection, how many cars have passed through the intersection after 7 wrecks?
Mathematics
1 answer:
Ierofanga [76]2 years ago
3 0

The number of cars that have passed through the intersection is 245.

<h3>How many cars passed through the intersection?</h3>

Direct variation is when two variables move in the same direction. If one variable increases, the other variable increases.

The equation that represents direct variation is; c = wk

Where:

  • c = number of cars
  • w = number of wrecks
  • k = constant of proportionality

1085 = k31

k = 1085 / 31

k = 35

c = 7 x 35

c = 245

To learn more about direct variation, please check: brainly.com/question/27573249

#SPJ1

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Step-by-step explanation:

degree 1 -  5x+5  -  d.

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3 years ago
Jenny's mom is 36 years old. If Jenny's great-grandmother is 90 years old, what percent of Jenny's mother's age is Jenny's great
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Answer:

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Step-by-step explanation:

The percentage needed is calculated by the following expression:

x = \frac{n_{M}}{n_{G}}\times 100\,\%

Where:

x - Percentage of Jenny's mother with respect to Jenny's great-grandmother, measured in percentage.

n_{M} - Age of Jenny's mother, measured in years.

n_{G} - Age of Jenny's great-grandmother, measured in years.

If we know that n_{M} = 36\,yr and n_{G} = 90\,yr, the percentage is:

x = \frac{36\,yr}{90\,yr} \times 100\,\%

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