400, 650, 675, 680, 690, 700, 800, 825, 840, 850, 1050
alukav5142 [94]
Answer: i belive it's D
Step-by-step explanation:
Answer:
8x + 3(20 - x) = 5(20)
Step-by-step explanation:
If x represents the number of pounds of $8 chocolates, then (20-x) is the number of pounds of $3 chocolates. The cost of the mix attributable to the $8 chocolates will be 8x, and the cost associated with the $3 chocolates will be 3(20-x). The sum of these costs is the cost of the 20 pounds of mix: $5×20.
In equation form, this is ...
8x + 3(20-x) = 5(20)
_____
The solution is x=8, so 8 lb of $8 chocolates should be mixed with 12 lb of $3 chocolates to make a mix worth $5 per pound.
Answer:
b
Step-by-step explanation:
Multiplication and division are inverse operations.
If you start with a number and divide it and multiply it by the same number (not zero), you get the original number back.
Since you want to undo a division by 7, you must multiply by 7.
Answer: A. Multiplying by 7
