You have to combine liked terms. the answer is -5x- -1, which is essentially -5x+1 because two negative is a positive
Answer:
C = .04 sales
Step-by-step explanation:
Hope this helps dude ^-^
You could do 3 ten dollar bills, 5 six dollar bills, two fifteen dollar bills and probably a few more. If you had $45 you could use 8 five dollar bills, 8 five dollar bills
Let x be the number of pounds of beans that sells for $0.72 used and y
be the number of pounds of beans that sells for $0.52 used. Then:
x + y = 110 . . . (1)
0.72x + 0.52y = 81.4 . . . (2)
From (1), x = 110 - y . . . (3)
Putting (3) into (2) gives
0.72(110 - y) + 0.52y = 81.4
79.2 - 0.72y + 0.52y = 81.4
79.2 - 0.2y = 81.4
0.2y = 79.2 - 81.4 = -2.2
y = -2.2/0.2 = -11
x = 110 - (-11) = 110 + 11 = 121
The solution is not reasonable because, there cannot be negative value for the number of pounds of beans used.
And 121 pounds of beans cannot produce 110 pounds.
Step-by-step explanation:
2x^2 + x - 28
= 2x^2 - 8x + 7x - 28
= 2x(x-4) +7(x-4)
= (2x+7)(x-4)
2x+7 = 0 or x-4 = 0
x = -7/4 or x = 4