Answer:
m∠1 = 50°
m∠2 = 130°
Explanation:
m∠2 = 130° because of alternate exterior angles.
m∠1 = 50° because it is supplementary to m∠2. So, 180 - 130 = 50.
To solve this problem you have to set up a proportion. To form one side of the proportion you use "is over of" meaning what number represented by is, in this case 18, is placed over the number represented by of, 3000.

Since you are finding the percent of something, youre x value is placed above "100" because percent values are most commonly out of 100%.
So now your proportion will look like


To solve the proportion you cross multiply and divide. So you multiply 100 and 18 since they are crossed from each other, then divide 1800 by 3000. The answer is .6. 18 is .6% of 3000.
Both the angles will be 105°
Just add up the given angles, subtract the result by 360, and divide by 2.
(8/4) = (10/x)
8x = 4 x 10
8x= 40
x = 40/8
x=5
It will take 5 hours.
There are three elements in this problem. That is the speed, time and distance. If two of the above-mentioned are given there is no problem of getting the third. In the problem, speed and distance is given, and time is required. Speed is equal to distance over time.
3m/min = 37.5m / t.
Let us then find for t. Doing algebraic manipulation we should get t = 12.5 mins.