It’s not 100 points it’s only five points
Answer:
y =16
I have solved it . It's in the picture above. Hope it helps
Answer:
14,300
Step-by-step explanation:
move the decimal 5 places to the right.
1.43 x 10^5= 14,300
The number of questions in the test is 30
Step-by-step explanation:
Let's call the total number of questions in the test N.
We know that Laura answered 27 questions, and these 27 questions represent the 90% of the test.
Therefore, we can say that 27 is the 90% of N.
Re-writing the percentage as a fraction,

This means that:

And now we can solve for N to find the number of questions in the test:

Learn more about percentage:
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Top answer is -4 because when you divide by a negative your answer will come out negative and bottom answer is 6 because when you multiply two negatives it turns into a positive