Step-by-step explanation:
3(x2+2x-3)-4(4x2-7x+5)
3x2 + 6x - 9 - 16x2 + 28x - 20
-13x2 + 34x - 29
Answer:
there is no function
Step-by-step explanation:
Answer:
He would need to work 8 weeks for 2300, 16 for 6400, and 22 for 8800
Step-by-step explanation:
You have to divide 3,200 by 400 since thats how much he makes in a week
that gives you 8
and you do the same for the rest
equation:
money wanted/400=weeks
Given:
Candy x = 0.90 per pound
Candy y = 0.40 per pound
100 pounds * 0.85 per pound = 85
x + y = 100
0.90x + 0.40y = 85
x = 100 - y
0.90(100 - y) + 0.40y = 85
90 - 0.90y + 0.40y = 85
-0.50y = 85 - 90
y = -5 / -0.50
y = 10
x = 100 - y
x = 100 - 10
x = 90
0.90x + 0.40y = 85
0.90(90) + 0.40(10) = 85
81 + 4 = 85
85 = 85
