It takes her (100 mi)/(50 mi/h) = 2 h to get to her destination. She has 1 h 40 min = 100 min for her 100 mi return trip.
.. (100 mi)/(100 min) = (60 mi)/(60 min) = 60 mi/h
She must return at the rate of 60 mph to complete the trip in 3 h 40 min.
Say 36% of 100 is 36. so knowing half of 36 is 18, take half of 100, 50.
so 18/50 = 36
The answer is 50.
Answer:
2
Step-by-step explanation:
As per the interval, x = 1 and y = 5/2
<u>Substitute x into the expression:</u>
3 - 1 = 2
Um well KCF stands for Keep Change Flip which is used for dividing fractions... ask if you need a better description ☺️
Answer:
35 questions
Step-by-step explanation:
First find out how many questions he got right setting up an equation.
1)3x=84.
The variable 'x' is the answers he got correct. The next step would be to divide by 3 to get the x alone. Remember, whatever you do to one side is done to the other so divide 84 by three as well
2) 3x÷3 = x.
84÷3=28.
which leads you to x=28.
Then, since he got 7 wrong, you would add the 7 to the 28 he got correct to get the final answer.
3) 28+7=35
another way you can do this is multiply numbers by three until you get to 84. The number you multiplied by is the amount he got correct, then add the correct and wrong ones together to get 35
