Answer: 49
Step-by-step explanation: just roll with it
Answer:
900
Step-by-step explanation:
I used the box method
Answer:
9/16
Step-by-step explanation:
Answer:
16/72 or answer B
Step-by-step explanation:
I have taken the test before
Step-by-step explanation:
x = pounds of cheaper chocolate
y = pounds of more expensive chocolate
30 pounds for $1.10 per pound were sold.
so, the 30 pounds cost
1.1 × 30 = $ 33.00
and then we know
x + y = 30
0.9x + 1.5y = 33
from the first equation we get
x = 30 - y
and we use that in the second equation
0.9×(30 - y) + 1.5y = 33
27 - 0.9y + 1.5y = 33
0.6y = 6
y = 10 pounds
x = 30 - y = 30 - 10 = 20 pounds
anyway, 10 pounds of the $1.50 chocolate was used.
