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Ainat [17]
3 years ago
8

You earned a 84% on a science test. You answered 21 questions correctly. How many questions were on the test?

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0
20 x .80 = 16 
So the answer would be 16. 
I hope this helps :)
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Evaluate 13 - 0.75w + 8x when w = 12 and x = 1/2
sashaice [31]

Answer:

8

Step-by-step explanation:

13 - 0.75 (12) + 8 (0.5)

13 - 0.75 (12) + 4

13 - 9 + 4

4 + 4

8

3 0
3 years ago
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PLEASE help me with this!​
Step2247 [10]
The answer is d.

The easiest way is to find a point within the shaded region and test out the equation.
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3 years ago
Help will give brainliest
Levart [38]

Answer:

(-1)+(-3)=-4

Step-by-step explanation:

We were originally on -1.

But we jumped to -4.

-4 is 3 spaces to the left of -1.

In other words, we subtract 3 into -1.

Another way of saying this is that we added -3 to -1.

Therefore, our equation is:

(-1)+(-3)=-4

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3 years ago
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Natali5045456 [20]

Answer:

Definition of segment bisector, SSS

Step-by-step explanation:

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3 years ago
What equation can be used to find n, the number of nickels in the collection ?
Semenov [28]

Given, Bodhi has a collection of 175 dimes and nickel. If she has n numbers of nickel. Then,

The number of dimes coin= 175-n.

The collection is worth $13.30.

1 nickel is worth five cents. So, n nickel will worth 0.05n.

Similarly 1 dime is worth 10 cents. So, 175-n dimes will worth 0.1(175-n).

Since the total worth is $13.30. So, we can set the equation as follows:

0.1(175-n)+0.05n=13.13.

Hence, the last option is the correct choice.

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3 years ago
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