Part A
Her steps were
Kelsey made a mistake on line 3. Note how the 17/6 flips to 6/17. This is not correct. You keep the first fraction the same, but you do flip the second fraction. This only applies when you divide two fractions.
The third step should look like
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Part B
Here's what she should have written
If you want to convert that improper fraction to a mixed number, then you could do something like this
Or you could divide 17 over 8 using long division to get 2 remainder 1. The 2 is the quotient that goes to the left of the 1/8. The remainder of 1 is the numerator of 1/8.
Answer:
x = 10.5
Step-by-step explanation:
3x - 30 = 1.5
3x = 31.5
x = 10.5
The score range that sally would have to make a 90 average is 85-100
Answer:
x = 6.573
y = 12.361
Step-by-step explanation:
sin 62° = y/14
y = 14 · sin 62°
y = 12.361
sin 28° = x/14
x = 14 · sin 28°
x = 6.573
Answer:
Area = 823 * 534 = 439,482 ft^2
Step-by-step explanation: