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laila [671]
3 years ago
6

Daisy is making solid spikes for her Halloween costume. The spikes are shaped like right circular cones with base radius of 222

inches and height of 666 inches. If Daisy has 360360360 cubic inches of material for making the spikes, what is the maximum number of spikes she can make? (Round your answer to the nearest whole number.)
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0
Please answer please please thank you
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PLZ HELP ASAP SOLID GEOMETRY WORD PROBLEMS
yan [13]
The volume of the candle initially is:
V=Ab*h
Area of the base of the cylinder: Ab=pi*r^2
pi=3.14
Radius of the base: r=4 cm
Height of the cylinder: h=6 cm

Ab=pi*r^2
Ab=3.14*(4 cm)^2
Ab=3.14*(16 cm^2)
Ab=50.24 cm^2

V=Ab*h
V=(50.24 cm^2)*(6 cm)
V=301.44 cm^3

The candle melts at a constant rate of:
r=(60 cm^3)/(2 hours)=(120 cm^3)/(4 hours)=(180 cm^3)/(6 hours)
r=30 cm^3/hour

The amount of candle melted off after 7 hours is:
A=(30 cm^3/hour)*(7 hours)
A=210 cm^3

The percent of candle that is melted off after 7 hours is:
P=(A/V)*100%
P=[(210 cm^3)/(301.44 cm^3)]*100%
P=(0.696656051)*100%
P=69.66560510%
Rounded to the nearest percent
P=70%

Answer: 70%

8 0
3 years ago
The items Matt ate at dinner cost m dollars. He added 6.5% to the cost of dinner for sales tax. Matt paid $25 using a gift card
Artyom0805 [142]

Answer:

there isn;t anything posted underneath

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is 17cm per min=how much mile per hour
dalvyx [7]
(centimeter/minute): 17
(miles per hour): 0.00633799
6 0
3 years ago
Read 2 more answers
PLEASE ANSWER
statuscvo [17]
Answer: B) 2

Detailed Answer:

The degree of a polynomial is the highest power in the polynomial. Here the highest power is 2 hence the degree is 2. Polynomials with the degree 2 are also called quadratic polynomials.
8 0
2 years ago
A car rental cost 30 a day plus 0.65 per mile after the first 100 miles you are traveling 215 miles in 3 days how much will your
hichkok12 [17]

Answer: His total rental cost will be $164.75.

Step-by-step explanation:

Since we have given that

Cost of per day = $30

Cost of per mile after the first 100 miles = $0.65

According to question, he was travelling 215 miles in 3 days.

So, it becomes,

30\times 3+0.65\times (215-100)\\\\=90+0.65\times 115\\\\=90+47.75\\\\=\$164.75

Hence, his total rental cost will be $164.75.

6 0
3 years ago
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