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Tcecarenko [31]
3 years ago
6

Simplify and solve this equation: 40 + 9 +5 -12=42

Mathematics
1 answer:
enot [183]3 years ago
6 0
I hope this helps you

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If i get 14/20 on a test what percent would that be? 30 POINTS!!!!! 5 STARS AND A THANKS TOO
IgorC [24]
To figure out the percentage you got correct, we need to set up fractional proportions.

We already have one fraction, 14/20.
Since we are looking for a percentage, we need to have a maximum total percentage that represents the total score.
100% is the maximum percentage for any total.
So we have our fractional proportions set;
14/20 : x/100

To solve for this, we need to cross multiply the numerator (top number) of one fraction by the denominator (bottom number) of the other fraction.

Let's try this!

14 • 100 = 1400
20 • x = 20x

Now that we have our products, set them as an equation.

20x = 1400.

To solve for x, we need to divide both sides by 20.

20x / 20 = x
1400 / 20 = 70.

You are left with:

x = 70.

Your answer is:

If you get 14/20 on a test, you would get 70% of the questions correct.

I hope this helps!
8 0
3 years ago
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How many adults are needed if there <br> are 72 children
Murrr4er [49]

Answer:

36

Step-by-step explanation:

72÷2

2 adults per one child

8 0
3 years ago
O
Jet001 [13]

Answer:

5 because the 3 times 1000 and when you divide that it gets 5

4 0
3 years ago
Find the slope of a line parallel to y = 1/2x + 3.
daser333 [38]

Answer:

The slope is 1/2

Step-by-step explanation:

hope this helps

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A line's y-intercept is 8, and its slope is 6. What is its equation in slope-intercept form?
dimulka [17.4K]

Answer:

y = 6x + 8

Step-by-step explanation:

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