Answer:
The answer is 45.
Step-by-step explanation:
60% of a number is 54, find the original number
54 ÷ 60%
= 54 ÷ 60/100
= 54 * 100/60
= 90
50% of 90 is
90 * 50%
= 90 * 50/100
= 90 * 1/2
= 45
Answer:
3x
Step-by-step explanation:
The area of a triangle is (base × height)/2.
In this picture, the base is 3.
The height is 2x.
(3×2x)/2
=6x/2
=3x
12 degrees
Think of a number line -12 is 12 spaces away from 0.
Answer:
D=160-13 1/3t
Step-by-step explanation:
D is distance in this instance
We are using y=mx+b for this.
The initial distance is 160 miles, that's our y-intercept or <em>b</em><em>.</em>
Now we need to find our slope. If Andrew is 40 miles away in 3 hours, he is 13 and 1/3 miles away in 1 hour. It's negative because you are subtracting from the initial distance. You can keep that as an improper fraction if that makes it easier for you.
Now plug it in
Distance=13 1/3 miles times <em>how</em><em> </em><em>many</em><em> </em><em>hours</em><em> </em>subtracted from 160 or D=-13 1/3+160. This can be rearranged to the answer above.
