Answer:
57
Step-by-step explanation:
Average = total points / total students
95 = (19×97 + x) / 20
1900 = 1843 + x
x = 57
The lowest the last test score can be for the whole class to average a 95 is 57.
Answer:
1080hrs
Step-by-step explanation:

days cancel, redefine week as =5days

weeks cancel redefine 4 weeks = 1 month

months cancel, redefine 9months= 1years

1080hrs per year (if I mathed 120x9 correctly that is, I didn't use a calculator so please double check that 120x9=1080)
It will take 5 days for Montegro Flooring Company to complete this job
<u>Solution:</u>
Given, The Montegro Flooring Company can replace 200 square feet of carpet with tile in one day
They accept a job replacing carpet with tile in an apartment that measures 977.5 square feet
We have to find how many days will it take the Montegro Flooring Company to complete this job?
Now, according to given information,
200 square feet ⇒ 1 day
Then, 977.5 square feet ⇒ n days
Now, by chris cross method

Hence, the company requires 5 days approximately.
Answer:
53
Step-by-step explanation:
The expression is ;
8- (m/n) + p2
8- (8/2) +(7)square
8 -4 +49=53
Answer:
6
Step-by-step explanation:
To check my work I used desmos