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3 years ago

10

Five of the 25 girls on Alden Middle School’s soccer team are seventh-grade students. Find the percentage of seventh graders on

the team. Show two different ways of solving for the answer. One of the methods must include a diagram or picture model.

1 answer:

Fed [463]3 years ago

6 0

Oh, I remember this one. Here's this if you need it, if it doesn't help then let me know.

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HELPP!!!! Is the first one right? and if not can u correct it also can u help me on the other ones plz!!!!???

SpyIntel [72]

Answer:

69 noice

Step-by-step explanation:

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3 years ago

If x-y =8 find the value of y when x=3

DedPeter [7]

Answer: y = -5

Substitute in 3 for x.
x - y = 8 Substitution
3 - y = 8 Subtract 3 from both sides
-y = 5 Divide by -1 to both sides
y = -5 Answer!

You can also check your work.
x - y = 8
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3 years ago

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natali 33 [55]

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Step-by-step explanation:

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2 years ago

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2 years ago

Let f(x)=x^2+17x+72<br><br><br><br> What are the zeros of the function?

densk [106]

Answer:

The zeros of the given function $f(x)=x^2+17x+72$ is $\left(x+8\right)\left(x+9\right)$ are -8 and -9.

Step-by-step explanation:

Given : Function $f(x)=x^2+17x+72$

We have to find the zeros of the functions.

Consider the given Function $f(x)=x^2+17x+72$

Since, we have to find the zeros of the given functions.

Put f(x) = 0

Thus, $x^2+17x+72=0$

We can solve the given equation using middle term splitting method.

17x can be written as 8x + 9x

$x^2+17x+72=0$ can be written as $x^2+8x+9x+72=0$

Taking x common from first two term and 9 common from last two terms, we have,

$x(x+8)+9(x+8)=0$

Simplify, we have,

$\left(x+8\right)=0$ or $(x+9\right)=0$

x = -8 and x = -9

Apply zero product rule, $a\cdot b= 0 \Rightarrow a=0 \ or \ b=0$

$\left(x+8\right)\left(x+9\right)=0$

Thus, The zero of the given function $f(x)=x^2+17x+72$ is $\left(x+8\right)\left(x+9\right)$ are -8 and -9.

3 0

3 years ago