Answer:
73
Step-by-step explanation:
Since DA is the diameter, this means that you can divide the circle into two half-circles. You will solve with the right half-circle. A half-circle has a 180 total degrees. Add up the values given and solve for x.
(2x) + (7x - 4) + (85) = 180
2x + 7x - 4 + 85 = 180
9x - 4 + 85 = 180
9x + 81 = 180
9x = 99
x = 11
Now that you have the value of x, solve for m∠CZB.
m∠CZB = 7x - 4
m∠CZB = 7(11) - 4
m∠CZB = 77 - 4
m∠CZB = 73
Let the measure of the unknown angle is x °
Supplementary angles sum up to 180°. So the supplementary angle of x° will be (180 - x)°
According to the given data, measure of x is 40° less than 3 times the measure of its supplementary angle (180 - x). So we can set up the equation for this scenario as:

So the degree measure of the required angle is 125°.
Answer:
136,64,24,16
Step-by-step explanation:
Answer:
e represent a fraction happy to help
<em>He would need to add 20 cups of flour.</em>
<em>According to the problem Marcus puts in twelve cups of sugar, and the original amount of sugar was 3 cups. If you divide 12 by 3 you get 4. This means that you multiply 5 by 4 to get the total amount of flour required (originally there were 5 cups of flour).</em>
<em>Hope this helps and have a nice day.</em>
<em>-R3TR0 Z3R0</em>