Answer:
what? Its more than
Step-by-step explanation:
Answer:
31 questions that are worth 7 points, 14 questions that are worth 2 points
Step-by-step explanation:
the variable s will stand for the number of 7 point questions, the variable t will stand for the number of two point questions.
7s + 2t = 245
s + t = 45
-------------
t = 45 - s
7s + 2(45 - s) = 245
7s + 90 - 2s = 245
5s + 90 = 245
5s = 155
s = 31
There are 31 questions that are worth 7 points.
7(31) + 2t = 245
217 + 2t = 245
2t = 28
t = 14
There are 14 questions that are worth 2 points
A) 2/3 divided by 5/1
= 2/3 X 1/5
= 2/15 of the book
B) 14X5=70
1/3
2/3
3/3
70+35= 105 pages
Assuming you retain the same number of pounds of popcorn (3)
find cost now
3*0.80=2.40
2.20 per pound
(2.4+2.2x)/(3+x)=1.6
times 3x both sides
2.4+2.2x=4.8+1.6x
minus 1.6x from both sides
2.4+0.6x=4.8
minus 2.4 both sides
0.6x=2.4
divide both sides by 0.6
x=4
4 pounds of caramel are needed
