I've never been sure about how grades work but I believe it should be somewhere in the high 80's or low 90's
(3x + 7) + (4x - 1) = 90
7x + 6 = 90
7x = 84
x = 12
3(12) + 7 <u>?</u> 4(12) - 1
43 <u>?</u> 47
43 > 47
<ROP is larger
The average is found by adding all the temperatures together, then dividing by the number of days.
Since the average for five days was 63, then the total of the temperatures need to equal 63 x 5 = 315.
The total for the first four days was : 56 + 60 + 79 + 70 = 265
The fifth day is 315 - 265 = 50 degrees.
Answer:

Step-by-step explanation:
hope this helps u ...
It’s 25% because 100 devide by 4 is 25