Answer: 
Step-by-step explanation:
In order to solve this exercise it is important to remember that a "Rate" is defined as a ratio that compares two different but related quantities.
Then, "Unit rate" tell us how many units of the first quantity corresponds to one unit of the second quantity. Therefore, the second quantity is equal to 1.
According to the information given in the exercise, you know that the number of hours of homework in 8 weeks is 240 hours.
Then, in order to determine the Unit rate (the number of hours per week), you need to divide 240 hours by 8 weeks.
Through the procedure explained above, you get the that the number of hours per week is the following:
(Notice that it is 
)
Answer:
z = -60
Step-by-step explanation:
1/6z= -10
To find the value for z, multiply each side by 6
6*1/6z= -10*6
z = -60
4 because a 45-45-90 triangle has a side ratio of 1-1-sqrt2 with sqrt2 being the hypotenuse
Answer:
<h2>
<em><u>25 square inches </u></em></h2>
Step-by-step explanation:
<em><u>Given</u></em><em><u>, </u></em>
Parallel sides of the trapezium = 3in, 7in
Height of the trapezium = 5in
<em><u>Therefore</u></em><em><u>, </u></em>
Area of the trapezium
= 5in × 5in
<em><u>Hence</u></em><em><u>,</u></em>
<em><u>Area</u></em><em><u> </u></em><em><u>if</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>trapezium</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>25</u></em><em><u> </u></em><em><u>square</u></em><em><u> </u></em><em><u>inches</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>
(3 * n) +4 = 16
(3 * n) = 12
n = 4
