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3 years ago

7th grade math guys!! Proportion equation?? anyone help please???!!

Mathematics

2 answers:

Aleks [24]3 years ago

7 0

The answer is B.

I need 20 character for this answer

Virty [35]3 years ago

6 0

Hey there!

In this problem, we're looking for x's <em>relation</em> to y. We want to know what we multiply, divide, or do any other operation to on x to get y.

And that, is why we have algebra.

We take our x value, and we put a variable, z, after it. That allows us to solve for z and see what we are doing to x to get y.

Let's try one:

We have 2, and when it goes through our function, we get 16. We have:

2z = 16
z = 8

Next one:

3z = 24
z = 8

Finally:

4z = 32
z = 8

We see a common pattern. Y is just x multiplied by 8.

Therefore, your answer is B, y = 8x

Hope this helps!

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Help me please I need it

Allushta [10]

Answer:

(6,4)

Step-by-step explanation:

18/12 (simplify)

3/2

3/2 x 2/2 = 6/4 = (6,4)

6 0

2 years ago

40=3x+x^2<br><br> How do I find the answer to this

tamaranim1 [39]

Answer:

x = -8, x = 5

Step-by-step explanation:

This can be solved using Factorization method:

$40 = 3x + {x}^{2} \\ \\ \implies \: {x}^{2} + 3x - 40 = 0 \\ \\ \implies \: {x}^{2} + 8x - 5x- 40 = 0 \\ \\ \implies \: x({x} + 8) - 5(x + 8) = 0 \\ \\ \implies \: ({x} + 8) (x - 5) = 0 \\ \\ \implies \: ({x} + 8) = 0 \: \: or \: \: (x - 5) = 0 \\ \\ \implies \: x = - 8 \: \: or \: \: x = 5 \\ \\ x = - 8, \: \: 5$

8 0

2 years ago

Each week samantha can pay as much as $15 for her school lunch. Write an inequality showing how much samantha spends on lunch.

Annette [7]

Answer:

$x\leq \$15$

Step-by-step explanation:

Let

x------> amount of money that Samantha spends weekly on her school lunch

we know that

The inequality that represent this situation is

$x\leq \$15$

All positive real number less than or equal to 15

5 0

3 years ago

What is 6 divided by 2

Pani-rosa [81]

Answer: 3
To check:
2 * 3 = 6

7 0

3 years ago

Read 2 more answers

I cannot find the answer on my own, I need a lil' bit of help.

viktelen [127]

for any fraction a/b, the decimal format of it is just a ÷ b.

is the number rational?

well, a rational number is one we can write as a ration or fraction, well clearly is a fraction so it is rational.

can it be written as a repeating/recurring decimal? well, 9/20 is 0.45, so -9/20 is -0.45, no repeating decimal like 0.454545......... , just a plain vanilla -0.45, so nope.

is it less than -0.4?

well, let's recall that for the negative side on the number line, the closer to 0, the larger the number, so then -1,000,000 is much smaller than -1, because -1 is closer to 0.

who is closer -0.4 or -0.45?

|--------------------- -0.45 -------- -0.40 ------------------- 0 --------------- 1 -------------------|

so, -0.45 is farther from 0, and therefore is smaller than -0.4, so yes.

4 0

3 years ago