At summer camp the ratio of boy to girls was 7:1. If there were 63 boys, how many girls were there

Answers

Answer 1

Answer: For every 7 boys, there is one girl

So: 63/7 = 9

There are 9 girls.

Answer 2

Answer: 9 girls

Because the ratio is 7:1 ,every 7 boy there is a girl. So you just need to take 63÷7 then you will get the number of girls

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darnell's car used 8 gallons of gasoline to travel 340 miles. after a mechanic work on teh car, it used 7 gallons of gasoline to travel 350 miles. if the price of gasoline was approximately $4.00 per gallon, how much less to the nearest cent per mile, did it cost to run the car after the mechanic worked on it?
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Write the absolute value equations in the form x−b =c (where b is a number and c can be either number or an expression) that have the following solution sets: Two solutions: x=−2, x=−32.

Answers

Answer:

|x +17| = 15

Step-by-step explanation:

The absolute value equation ...

|x -b| = c

can be rewritten as two equations:

x -b = -c

x -b = c

The solution to the first is x = b -c.

The solution to the second is x = b +c.

The first solution is the smaller of the two, so we have ...

b -c = -32

b +c = -2

Adding these two equations gives ...

2b = -34 ⇒ b = -17

Subtracting the first equation from the second gives ...

2c = 30 ⇒ c = 15

The the equation you seek is ...

|x +17| = 15

7% of 120 (Need work shown)

Answers

1% of 120 is 1.2, so 7 *1.2 = 8.4

Also you could set up the proportion 7/100 = x/120 and solve for x.

120=100%

x= 7 %

cross-multiply

100x= 120*7

100x= 840

x= 840/100

x= 42/5

x= 8.4

Therefore 7% of 120 is 8.4

I hope that's help !

kristy ran 24 laps in chairity run and then walked 0.2 kilometer to the presentation table. The total distance Kristy traveled was 29.6 kilometers. What was the distance of each lap? Explain how you solved the problem.

Answers

Answer:

1.225km is equal to each laps

Step-by-step explanation:

Since Kristy total distance traveled = 29.6km

And Kristy ran 24 laps and later walk 0.2km. it simply implies that

Total distance traveled = distance covered running + distance covered walking

Since we know that

Total distance traveled = 29.6km

distance covered running = 24 laps

distance covered walking = 0.2km

Distance covered running in km = total distance traveled - distance covered walking

Distance covered running in km = 29.6km - 0.2km = 29.4km.

To now find the distance for each lap.

Since we have:

Distance covered running in km = 29.4km.

Distance covered running in lap = 24 laps

i.e

24 laps = 29.4km

1 lap = x

Use cross-multiple

24 laps * x = 29.4km × 1 lap

x = 29.4km / 24

x = 1.225km

Therefore

1.225km is equal to each laps.

totaldistanceof24laps

29.6km - 0.2km

=29.4km

totaldistanceofeachlap

24 laps = 29.4km

1 lap = ?

Usecross-multiple

24 laps × X = 29.4km × 1 lap

X = 29.4km / 24

X = 1.225km

Answer

1.225km

Is the value of the first 5 in California's population 10 times as great as the value of the second 5 ?

Answers

yes because 10 times as 5 is population

There is 3/4 of a box of cereal remaining You eat 2/5 of the remaining cereal What fraction of the box do you eat

Answers

3/4 - 2/5 = 7/20

LCD = 20

15/20 - 8/20 = 7/20

A scale model of the statue of liberty is 5 inches tall. if the statue of liberty is 305ft tall find the scale of the model.

Answers

12 inches in a foot
305ft = 3,660 inches

5 inches to 3,660 inches is 1 to 732

scale is 732:1

Final answer:

The scale of the model is 1 inch : 61 feet.

Explanation:

To find the scale of the model, we need to compare the height of the scale model to the real Statue of Liberty. The scale is the ratio of the height of the scale model to the height of the real object. In this case, the height of the scale model is 5 inches and the height of the statue is 305 feet. To find the scale, we can set up a proportion:

5 inches / x = 305 feet / 1

Cross multiplying, we get 5x = 305. Solving for x, we find that x = 305/5 = 61. So the scale of the model is 1 inch : 61 feet.

Learn more about Scale models here:

brainly.com/question/19512201

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