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Lera25 [3.4K]
3 years ago
6

The ratio of girls to boys in a boarding school is 2:7,if there are 1251 student in the school, how many of the student are girl

s​
Mathematics
2 answers:
Y_Kistochka [10]3 years ago
7 0

278 students are girls in this case.

andrey2020 [161]3 years ago
6 0
Answer with explanation is given ......

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For the last 4.5 hours, the temperature has decreased at a rate of 2.8 Degrees Fahrenheit per hour. Which best represents the ov
faust18 [17]

Answer:

The overall change in temperature over the time period ∆T = -12.6°F

Step-by-step explanation:

Rate of change of temperature r = -2.8°F per hour

Time t = 4.5 hours

The overall change in temperature ∆T = Rate of change of temperature × time period

∆T = r × t

∆T = -2.8°F per hour × 4.5 hours

∆T = -12.6°F

The overall change in temperature over the time period is -12.6°F

Step-by-step explanation:

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3 years ago
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Del ray can run 20 1/2 miles in 2 1/4 hours. How many miles per hour can he run?
emmasim [6.3K]
20 \frac{1}{2} :2 \frac{1}{4} = \frac{41}{2}: \frac{9}{4}=  \frac{41}{2}* \frac{4}{9} =\frac{82}{9} =  9 \frac{1}{9} \ \ \text{miles per hour}
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3 years ago
What is negative 5 squared?
fiasKO [112]
Negative 5 squared is negative 25
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3 years ago
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A 36 inch string is divided into 5 pieces. Two of the
icang [17]
X + x + 3(2+x)= 36
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3 0
3 years ago
State the additive property of zero using the variable b.
Juli2301 [7.4K]

Answer with Step-by-step explanation:

We are given a variable b

We have to state the additive property of zero using the variable b.

Additive property of zero: It states that when any number b is added to zero then we get  sum is equal to number itself.

Mathematical representation:

b+0=0+b=b

Suppose, a number  b=9

Then, 9+0=9

0+9=9

This property is called additive property of zero because when 9 is added to 0 then we get sum equals to 9.

7 0
3 years ago
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