Answer:
39
Step-by-step explanation:
We notice this is an arithmetic sequence.
14, 9, 4.
common difference = d = 14 - 9 = 5
first term a_1 = 14
Find 6th term a_6
a_n = (n -1)*d + a_1
a_6 = (6 -1)*5 + 14
a_6 = 5*5 + 14 = 25 + 14 = 39
The answer is 27 for angle f
Divide the quantity done by the time:
2/3 / 3/4
When dividing by a fraction flip it over and change divide to multiply:
2/3 x 4/3 = (2 x4) / (3x 3) = 8/9
In 1 hour she will complete 8/9 of the project.
the answer is D you get this from using simultaneous equations the working out is shown in the photo. ignore the stuff at the top of the page