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ASHA 777 [7]
3 years ago
13

There are 9 boys to every 10 girls in a particular high school. there are 2622 students at the school. how many girls are there?

Mathematics
1 answer:
VashaNatasha [74]3 years ago
8 0
Boys : Girls
  9     :   10

-------------------------------------------
Find total parts :
-------------------------------------------
Total Parts = 9 + 10 = 19

-------------------------------------------
Find 1 Part :
-------------------------------------------
19 parts = 2622 
1 part = 2622 ÷ 9
1 part = 138

-------------------------------------------
Find 10 parts (girls) :
-------------------------------------------
1 part = 138
10 parts = 138 x 10
10 parts = 1380

--------------------------------------------------------------------------------------
Answer: There are 1380 girls.
--------------------------------------------------------------------------------------
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Answer:

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Step-by-step explanation:

a)

1) First, you have to turn 4 1/3 into an improper fraction, so you get 13/3

2) Then you do 13/3 *6/1 =78/3 (so you multiply both numerators and denominators)

3) Lastly, 78/3 can be simplified as 26

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3 years ago
if a car travels 370.3 miles on 52 liters of gas, how many liters of.gas.will take to go 722 miles.if the car travels at the sam
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Answer:

101.4 liters.  

Step-by-step explanation:

First of all we will find mileage of car.  

\text{Mileage of car}=\frac{\text{Total distance traveled}}{\text{Total amount of fuel}}

\text{Mileage of car}=\frac{370.3\text{ miles}}{52\text{ liters gas}}

\text{Mileage of car}=7.12115\frac{\text{ miles}}{\text{ liters gas}}

We can see that car travels at the rate of 7.12 miles per liter gas. Now let us find amount of gas needed to travel 722 miles at the same rate.

\text{Amount of gas needed}=\frac{722}{7.12}

\text{Amount of gas needed}=101.388

Therefore, it will take 101.4 liters of gas to travel 722 miles.

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