Answer:
= 15
Step-by-step explanation:
21 + 15 = 36
36/2 = 18
Therefore, 15 is the missing number :33
1st rock = 19.28 grams
2nd rock = 25.30 grams
3rd rock = 46.3 grams
Add 1st and 2nd rock to get the combined mass
19.28 + 25.30 = 44.58 combined mass of 1st and 2nd rock
Subtract:
3rd rock mass - combined mass of 1st and 2nd rock
46.30 - 44.58 = 1.72 grams
1.72 grams greater was the mass of the 3rd rock than the combined mass of the two rocks.
Answer:
oki then
Step-by-step explanation:
Answer: 1.2x
Step-by-step explanation:
Profit = Selling price - Cost
She bought the stock at a cost of x dollars
Her profit was 20% of that, which is 0.2x dollars
Selling price = Profit + Cost = x + 0.2x = 1.2x
