Cara figured that she would score 35 points on the last test. She actually scored 40. What is her percent error on her guess?
1 answer:
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If x is the smaller one, and is odd, the next consecutive odd integer is x+2.
Check:
11(13) = 143
23 + 5(11 + 13) = 23 + 120 = 143, check
-3(-1) = 3
23 + 5(-3 + -1) = 3, check
Answer: 11,13 or -3,-1
I was taught to get a common denominator and then arrange them in the correct order.
So first you find out what all the denominations can be multiplied to. That would be 40
So you multiply the bottom of each fraction by a number that will get 40.
3/4 * 10 = 30/40
7/8 * 5 = 35/40
3/5 * 8 = 24/40
Then you get 30/40, 35/40, and 24/40.
Then you organize the m.
24/40, 30/40, and 35/40
