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Basile [38]
3 years ago
10

On a science test, 2 points are deducted from a total of 100 points for each question answered incorrectly. Trevor scored an 84

on the test. The equation 100−2x=84, where x represents the number of questions answered incorrectly, represents the situation. How many questions did Trevor answer incorrectly?
8 questions
9 questions
12 questions
13 questions
Mathematics
1 answer:
iogann1982 [59]3 years ago
7 0

Answer:

8 questions

Step-by-step explanation:

100-2(8)=84

100-16=84

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Name two mixed numbers that the sum is 8 4/8 and the difference is2 2/8
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I will change them back to mixed numbers, I just work better with decimals.
F= first number
S= second number
f+s=8.5
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8.5-3.125= 5.375
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If a number a is chosen at random from the set
Paraphin [41]

Answer:

D. 3/19

Step-by-step explanation:

12/1 = 12

12/2 = 6

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These are the only ones that make the equation true.

There are also only 19 numbers because they need to be less than 20 like the question indicated. Therefore, the answer is D.

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3 years ago
$14.95 dinner; 15% tip
Marysya12 [62]

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hey hope this helps
8 0
3 years ago
How do i even solve this?? i’m super confused anything would help. ty.
alukav5142 [94]

Answer:

{b}^{4}  + 1

Your teacher messed up the question so just put the top right answer and ask your teacher if they did accidently miss-type.

Step-by-step explanation:

The first thing to do in this equation is look at the exponents. When multiplying a variable (or any number equal to itself with the same exponent) you only have to add the exponent. So for a, you would add the exponents to get 0, so a to the power of 0 is 1, because any number to the power of 0 is 1. For b, we would add the 3 and 1. (When no exponenet is present in a number then it is 1, so for this I added 3 and 1). So it would be 4. The correct answer is

{b}^{4}  + 1

5 0
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