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Aloiza [94]
3 years ago
7

20% of what number is 90?

Mathematics
1 answer:
ehidna [41]3 years ago
8 0
90 = (20)(x)
so you have to solve for x
90/.20 =450
answer is 450
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Solve the formula c = 1.06p for p, where c is the cost of an item at Shopping City, including tax, and p is the selling price. (
jek_recluse [69]

Answer:

Step-by-step explanation:

I honestly don't know

4 0
3 years ago
7^3 times 7^-7 times 7
dusya [7]

Hello there! :)

<u><em>Answer:\frac{1}{343}</em></u>

<u><em>*The answer must have a fraction.*</em></u>

Step-by-step explanation:

Lesson: Zero and Negative Exponents.

Distributive property: a(b+c)=ab+ac

First, you apply exponent rule.

a^b*a^c=a^b^+^c

7^-^3

\frac{1}{7^3}=7^3=7*7*7=343

Final answer: \frac{1}{343}

Hope this helps!

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4 0
3 years ago
Can someone help with this one?
wel
I believe it would be $132.50.

Hope this helps!!!
3 0
3 years ago
Read 2 more answers
What are the values of rand s?<br><br>​
Vitek1552 [10]

Answer:

s=15

r=10

Step-by-step explanation:

What we know)

The measure of a line is 180º

If two parrel lines are cut by a transversal, the corresponding angles are congruent (corresponding angles postulate)

What we can figure out)

The angle measuring 3r+3s and 6r+3s are on the same line, so

3r+3s+6r+3s=180

3r+3s and 6r+s are corresponding, so

3r+3s=6r+s

Solve)

Now, we just need to solve the equations.

3r+3s+6r+3s=180 can be condensed into 9r+6s=180 by combining like terms. Then, you can divide by 3 to get 3r+2s=60

3r+3s=6r+s can be turned into 2s=3r by subtracting 3r and s.

So we have 3r+2s=60 and 2s=3r

We can substitute 2s for 3r

2s+2s=60

4s=60

s=15

Then, we can plug s=15 into the equation

2(15)=3r

30=3r

r=10

7 0
2 years ago
ABCD is a square. The perimeter is 200 ft. AB = 5x + 20. Find the value of x.
Naddik [55]

Answer:

x=6

Step-by-step explanation:

Each side equals 50ft. 5x+20=50

minus 20 on both sides

5x=30

divide by 5 on both sides

x=6

7 0
2 years ago
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