Answer:
136
Step-by-step explanation:
Brady has eaten 50% of the original amount. The final amount is 68. So think, what 50% of a number is equal to 68?
Let x= original amount
Let n= final amount
n=68
50%= 0.5
0.5(x)= n
Divide both sides by 0.5
x= n/0.5, we know n=68, sub in 68 for n
x= 68/0.5
x= 136
Therefore, Brady had 136 pieces originally.
20
10+10+10+10=40
40/2=20
12 cents
opportunity cost of the next best option forgone when one alternative is chosen over other alternatives
by loaning matt the money he forgoes the opportunity to earn 12 cents in interest. this is his opportunity cost
That would be:-
4x - 7 = x + 29
the solution:-
3x = 29 + 7
3x = 36
x = 12
7
Undefined
