Marcos works 8 hours a day. he makes $19 an hour. on tuesday, he only worked 3/4 of a day. how much did marcos earn on tuesday?
which answer gives the correct solution and explains how to check if the answer is reasonable?
a. solution: $57. explanation: since marcos only worked 3/4 of the day, he made about 3 × $20 or about $60.
b. solution: $456. explanation: since marcos only worked 3/4 of the day, he earned about 3 × $20 or about $60. since there are 8 hours in the work day, then marcos made about 8 × $60 or about $480.
c. solution: $114. explanation: if marcos worked all day, then he would have made about 8 × $20 or about $160. since marcos only worked 3/4 of the day, or 0.75, he would make about $120 (160 × 0.75).

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32

the degrees would remain the same ( the number to the left of the decimal point.

the multiply the decimal by 60 to get the minutes and use the numbers to the left of the decimal point.

then multiply the decimal portion of that by 60 for the seconds and round off as needed.

39 .956652

the 39 remains the degrees.

the minutes = 0.956652 x 60 = 57.39912

the minutes = 57

the seconds = 0.39912 x 60 = 23.95 = 24 ( rounded to nearest tenth)

so 39.956652 = 39 degrees, 57 minutes and 24 seconds

-75.159809

the -75 remains the degrees

the minutes = 0.159809 x 60 = 9.58854

the minutes = 9

the seconds = 0.58854 x 60 = 35.31, rounded to nearest tenth = 35.3 seconds

so -75.159809 = -75 degrees, 9 minutes and 35.3 seconds.

the first coordinate is north or south, since it it positive it is north.

the second number is east or west, because it is negative it is west.

39 degrees, 57 minutes and 24 seconds n

-75 degrees, 9 minutes and 35.3 seconds w