Answer:
16 students got an A
Step-by-step explanation:
Set up an equation to compare the ratio to the scores:
Cross multiply:
80 = 5x
Divide each side by 5:
x = 16
Now, check if
16/8 = 2
40/8 = 5
The ratios are the same! Therefore, 16 students got an A!
Hope this helps! Feel free to contact me if you have any questions :)
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in all- 14 pens
<u><em>Answer:</em></u>
<u><em>Explanation:</em></u>
<u>Before we begin, you need to remember that:</u>
1- when we divide fractions, we convert the division into multiplication and flip the second fraction. In other words:
2- When multiplying fractions, we multiply the numerators together and the denominators together. In other words:
<u>Now, for the given:</u>
<u>The given expression is:</u>
<u>We will start by computing the multiplication:</u>
We can cancel out the n from both the numerator and the denominator, this will leave us with:
<u>Now, the expression became</u>
<u>We compute the result based on the rules mentioned above as follows:</u>
Hope this helps :)
D. X cubed
E. X to the negative 3
Answer:
34 and 19.
Step-by-step explanation:
Since the sum of the two numbers is 53, x+y=53. Since the difference is 15, x-y=15.
Adding x+y=53
and x-y=15,
The ys cancel, leaving 2x=68, or x=34. Therefore, 34-y=15, or y=19.