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soldier1979 [14.2K]

2 years ago

12

In a school the number of girls is more than twice the number of boys. If the school has 650 students find the greatest number o

f boys and the greatest possible number of girls in the school

2 answers:

Leya [2.2K]2 years ago

8 0

Answer:

750

Step-by-step explanation:

because if the has 650 students and it is the greatest number

GrogVix [38]2 years ago

3 0

The greatest number of boys could be 300 and the greatest number of girls could be 350. Because they’re are more girls than boys

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3 years ago

Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,

Tresset [83]

Answer:

$\boxed{y=2x^2+4x-7}$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

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$9=a(-4)^2+b(-4)+c$

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We substitute $(0,-7)$ to obtain;

$-7=a(0)^2+b(0)^2+c$

$\Rightarrow c=-7---(2)$

We finally substitute $(1,-1)$ to obtain;

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We put equation (2) into equation (1) to get;

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$16a-4b=16$

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We add equation (4) and (5) to get;

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We put $a=2$ into equation (5) to get;

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The reqiured quadratic function is

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3 years ago

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Answer:

a

Step-by-step explanation:

-5/9 ÷ 5/7

= -5/9 × 7/5

= -7/9

The answer should be a

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3 years ago

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3 years ago

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fredd [130]

Answer:

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Step-by-step explanation:

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3 years ago