Answer:
Step-by-step explanation:
Answer:
man just try to get the answer right yourself
Let the cost of one book= x cents
Let the money john have= y cents
According to the question,
45x=y ...eq(1)
(45+5)(x-5)=y
50(x-5)=y
50x-250=y ...eq(2)
On subtracting (1) from (2).
(50x-250)-45x=y-y
5x-250=0
x=250/5
x=50
Thus, cost of each book is 50 cents and john has 2250 cents.
Hope it helps.
Don't feel shy in saying thx if it helps.
Answer:
D
Step-by-step explanation:
Parallel lines must have the same slope. They <em>could</em> have points in common. If the y-intercepts were the same, taking into consideration the fact that the slopes have to be the same, it would be the same line and as the question directs, they are not. Parallel lines can have negative slope, as long as their slopes are equal.
Answer:
8+4n = 36
n=7
Step-by-step explanation:
the sum of 8 and 4 times a number is 36
8+4n = 36
Subtract 8 from each side
8-8+4n = 36-8
4n =28
Divide by 4
4n/4 = 28/4
n =7
