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brilliants [131]
3 years ago
14

F(x)=-2(3)(3)+3(3)-8

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

-17

Step-by-step explanation:

-2(3) = -6

-6(3) = -18

3(3) = 9

-18+9 = -9

-9 - 8 = -17

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At a school. Number of boys:number of girls=11:9. There are 124 more boys than girl. Work out the total number of students at th
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Answer:

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Step-by-step explanation:

Given that,

Number of boys: number of girls=11:9

\dfrac{x}{y}=\dfrac{11}{9}\\\\9x=11y ......(1)

There are 124 more boys than girls i.e.

x = 124+y .....(2)

Put the value of x from equation (2) in equation (1). So,

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1116 = 2y

y = 558

Put the value of y in equation (2).

x = 124+558

x = 682

Total students = x+y

= 682+558

= 1240

So, there are 1240 students at the school.

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