Jacob had math homework on 81 evenings.
Step-by-step explanation:
Time spent of each evening = 1/3 of an hour
Time spent in minutes = 
Total time spent = 27 hours
Total time spent in minutes = 27*60 = 1620 minutes
Let,
x be the number of evenings spent doing math homework.
Time spent each day* Number of evenings = Total time spent

Dividing both sides by 20

Jacob had math homework on 81 evenings.
Keywords: multiplication, division
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Need a little bit more information to be able to answer the question
Step-by-step explanation:
if you are solving for X' it is X=4
Answer:





Step-by-step explanation: the other angle is equal to his simmetrical, cause the triangle is isosceles, so is value is x. The sum of the angle in a triangle must be 180°
Answer:
Step-by-step explanation:
1- Order in descending order the following polynomial with respect to the
variable n. Then identify the independent term:

The independent term is - 5.
3- Look at the following polynomial and identify what the terms are
similar:

The similar terms are + 3m^3 n and - 11 nm^3 and
- 4 m^2 n and 6 m^2 n