7(n - p) + 5p
7n - 7p + 5p
7n - 2p
Step-by-step explanation:
so, there were in total 63 + 7 = 70 questions.
therefore,
100% = 70
1% = 100%/100 = 70/100 = 0.7
to know how many % are the 63 correct answers we need to divide 63 by 1% :
63 / 0.7 = 90%
so, he got 90% correct.
and you can expand the numerator if you wish, it won't be simplified further though.
Answer:
(3+2)
Step-by-step explanation:
Perimeter of a square = 4L
L is the length of one side of the square
Given the expression 12 + 8 that represents the perimeter of a square, factoring out 4 from both terms;
12 + 8
= (4*3)+(4*2)
= 4(3+2)
Comparing with 4L
4L = 4(3+2)
Divide both sides by 4
4L/4 = 4(3+2)/4
L = (3+2)
Hence the expression that represents one side of the square is (3+2)
Answer:
y= -20
Step-by-step explanation:
