9514 1404 393
Answer:
Step-by-step explanation:
Let d represent the number of daffodil bulbs you buy. Then 60-d is the number of crocus bulbs. The total cost will be ...
0.45(60 -d) +0.65(d) = 35.00
27 +0.20d = 35
0.20d = 8 . . . . . . . . . subtract 27
d = 40 . . . . . . . . . . multiply by 5
60 -40 = 20 . . . . . crocus bulbs
You can buy 20 crocus bulbs and 40 daffodil bulbs for $35.
Answer:
D, $100.00
Step-by-step explanation:
1. Find out how much what each percent is out of 400
Food - 20% of 400 = 80
Entertainment - 18% of 400 = 72
Savings - 15% of 400 = 60
Misc - 12% of 400 = 48
Clothes - 10% of 400 = 40
2. Subtract the money from 400
400 - 80 = 320
320 - 72 = 248
248 - 60 = 188
188 - 48 = 140
140 - 40 = 100
3. All we have left is 100, so he spent $100 dollars on rent.
For this case we must calculate the surface area of the container to know the amount of paint that Ernie must use.
We have then:
A = pi * r ^ 2 + 2 * pi * r * h
Where,
r: cylinder radius
h: cylinder height
Substituting values:
A = 3.14 * (3/2) ^ 2 + 2 * 3.14 * (3/2) * 18
A = 176.625 in ^ 2
Answer:
The amount of paint needed is:
A = 176.625 in ^ 2
