Answer:
Step-by-step explanation:
If the school spent $1,137.50 and wants to make a $1500 profit, then they need to make $2637.50 to earn back what they spent and make a profit. So, if you divide $2637.50 by 350, the number of books they purchased, you get the amount each book would have to cost to make this much money. The lowest price they could sell them for is $7.54.
Answer:
a= 0.6
b= 0.4
c= 0.2
d= 0.8
Step-by-step explanation:
Ons
(-4,8)(6,13)
slope(m) = (13 - 8) / (6 - (-4) = 5 / (6 + 4) = 5/10 = 1/2
y = mx + b
slope(m) = 1/2
use either of ur points (6,13)...x = 6 and y = 13
now sub and find b, the y int
13 = 1/2(6) + b
13 = 3 + b
13 - 3 = b
10 = b
so ur equation is : y = 1/2x + 10 (slope intercept form)
or..
y = 1/2x + 10
-1/2x + y = 10...multiply by -2
x - 2y = -20 (standard form)
2x + 3y = 36
2x + 3 x 6 = 36
2x = 36 - 18
= 18/2
x = 9
