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Leokris [45]
3 years ago
9

In a play-school with 500 students, the number of boys is 20 more than five-sevenths of the number of girls. Let’s find the numb

er of boys and girls in the play-school.
If we assume x to be the number of girls in the play-school, the number of boys can be expressed as:
Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

Ok, so we can express the boys as another letter. just express them as the letter B for boys.

Step-by-step explanation:

I really don't know why.

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Convert 17π/8 to degrees.
Rasek [7]

Answer:

382.5°

Step-by-step explanation:

Multiply

17π                                               180°

------ by the conversion factor ------------

  8                                                π

obtaining:

(17)(180)°

------------- = 382.5°

      8

6 0
4 years ago
Find the future value if £7400 is<br> invested for 6 years at 12.8% p.a.<br> Total
Juli2301 [7.4K]

Answer:

the future value is £15,243.56

Step-by-step explanation:

The computation of the future value is shown below:

As we know that

Future value = Present value × (1 + rate of interest)^number of years

= £7400 × (1 + 0.128)^6

= £15,243.56

Hence, the future value is £15,243.56

7 0
3 years ago
Katie needs to measure water for a recipe she is using to cook dinner. she should measure the liquid in
Lisa [10]
The answer to that question is B. pints
7 0
3 years ago
Read 2 more answers
A hose fills a hot tub at a rate of 3.13 gallons per minute. How many hours will it take to fill a 255-gallon hot tub?
GalinKa [24]

Answer:

about 1.4 hours

Step-by-step explanation:

3.13 gallons per minute.

60 minutes in an hour, so multiply both numbers by 60.

187.8 gallons per hour.

Divide the number of gallons we need to fill the tub the number of gallons put in per hour.

255÷187.8=1.375...

Round it, you get 1.4 hours.

It takes about 1.4 hours to fill the hot tub.

6 0
4 years ago
John &amp; friends brought 4 bags of popcorn and 3 sodas at the movie for a total of 13.50. At the next movie John &amp; friend
scoray [572]

Answer:

The cost of 5 bags of popcorn and 2 sodas is 14.25 units.

Step-by-step explanation:

We are given the following in the question:

Let x units be the cost of a popcorn bag and y units be cost of soda.

The cost of 4 bags of popcorn and 3 sodas is 13.50.

Thus, we can write the equation:

4x + 3y = 13.50

The cost of 2 bags of popcorn and 5 sodas is 12.00

Thus, we can write the equation:

2x+5y=12

Solving the two equations, we get,

4x + 3y-(4x+10y) = 13.5 - 24\\\Rightarrow -7y  =10.5\\\Rightarrow y = 1.5\\\Rightarrow 2x + 5(1.5) = 12\\\Rightarrow x = 2.25

Thus, the cost of popcorn bag is 2.25 units and the cost of a soda is 1.5 units.

Cost of  5 bags and 2 sodas

==5x+2y\\=5(2.25) + 2(1.5)\\=14.25

Thus, cost of 5 bags of popcorn and 2 sodas is 14.25 units.

8 0
3 years ago
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