I’m sorry this isn’t an answer but what in the world are y’all learning what is this ?! i’m in high school & i don’t know this
Answer:
10 pounds.
Step-by-step explanation:
Let x pounds be the amount of mixed nuts we require.
Amount of peanuts in this mix = 0.70x pounds. Amount of peanuts in the 20% mix = 0.20*15 = 3 pounds.
So we have the equation:-
0.70 x + 3 = 0.40(x + 15)
0.70 x + 3 = 0.40(x + 15)
0.70x + 3 = 0.40x + 6
0.70x - 0.40x = 6 - 3
0.30x = 3
x = 10.
Answer:
or 38
Step-by-step explanation:
If Q is the midpoint of Line PR, then lines PQ and QR add up to equal Line PR. We then get

If you want to know the exact number that PR is, we can do additional steps where PQ = QR.

.00084 in scientific notation is 8.4 × 10^-4
The answer is A. 9, 12, 15,