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Keith_Richards [23]

2 years ago

11

Emma ran 5 miles each day for one 1 month. The next month she ran 6.5 miles each day. What percent did Emma increase her mileage

for the second month?

1 answer:

Law Incorporation [45]2 years ago

4 0

The difference = 6.5 - 5
the difference = 1.5

percentage = 1.5/5 × 20/20
percentage = 30/100
percentage = 30%

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Step-by-step explanation:

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3 years ago

A french class has a total of 25 student.The number of males is 7 more than the number of females how many males and how many fe

Lady_Fox [76]

Answer:

16 males and 9 females

Step-by-step explanation:

To solve this we can use a system of equations.

Let's start by naming the number of females x.

The number of males would then be y.

<u>Using these variables, we can set up 2 equations using info provided:</u>

A french class has a total of 25 students, -> x+y=25

The number of males is 7 more than the number of females -> x+7=y

Use substitution to solve.

<u>From the second equation:</u>

x+7=y

Subtract 7 from both sides.

x=y-7

Substitute that into the first equation.

x+y=25

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Combine like terms.

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3 years ago

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Luba_88 [7]

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2 years ago

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Nataly [62]

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Better still we could use the slope formula:

$m = \frac{y_2-y_1}{x_2-x_1}$

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3 years ago