Answer:
1 solution --> y=-13/2
Step-by-step explanation:
7(y+3)=5y+8
7y +21=5y+8
2y=8-21
2y=-13
y=-13/2
The formula for volume of a prism is length x width x height
If we plug in the given numbers: 4.2 x 7 x 15
We get an answer of 441 cm^3
The answer to this question is 175 as 500 divided by 20 is 25. Then, 25 times 7 is 175.
Answer: The measure of non-reflex ∠DOB is 108° and the measure of reflex ∠DOB is 252°.
Explanation:
It is given that the reflex angle ∠DOB has measure of 3.5y while the measure of ∠AOD is y.
From the given figure we can say that angle AOC and COB are supplementary angles and their sum is 180 because they are lies on a straight line.





Therefore the value of y is 72.



Therefore the reflex and is 252 degree.
The measure of non-reflex ∠DOB is,

Therefore, the measure of non-reflex ∠DOB is 108° and the measure of reflex ∠DOB is 252°.
Answer:
The exact answer is 913.5. And the estimate to the tens would be 910.