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wariber [46]
2 years ago
14

5. Jack has decided to give away 20% of his

Mathematics
1 answer:
Brrunno [24]2 years ago
7 0

Answer:

1280

Step-by-step explanation:

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If a cone has a 5inch radius and a 12inch height what is the volume of the cone
Burka [1]

Answer:

V = 75π

Step-by-step explanation:

The volume of a cone is πr^2 * h / 3

r = 5

h = 12

25π * 3 = 75π

7 0
3 years ago
Read 2 more answers
How many solutions does the equation have? 6-a = 1/3(9a-18)
Alex777 [14]
6 - a = \frac{1}{3} (9a - 18)

First, simplify \frac{1}{3} (9a - 18) to \frac{9a-18}{3} / Your problem should look like: 6 - a =  \frac{9a - 18}{3}
Second, multiply both sides by 3. / Your problem should look like: 18 - 3a = 9(a - 2)
Third, expand. / Your problem should look like: 18 - 3a = 9a - 18
Fourth, add 3a to both sides. / Your problem should look like: 18 = 9a - 18 + 3a
Fifth, simplify 9a - 18 + 3a to 12a - 18. / Your problem should look like: 18 = 12a - 18
Sixth, add 18 to both sides. / Your problem should look like: 18 + 18 = 12a
Seventh, add 18 + 18 to get 36. / Your problem should look like: 36 = 12a
Eighth, divide both sides by 12. / Your problem should look like: \frac{36}{12} = a
Ninth, since 3 goes into 12 to get 36, simplify \frac{36}{12} to 3. / Your problem should look like: 3 = a
Tenth, switch sides. / Your problem should look like: a = 3

Answer: a = 3 (one solution)

5 0
3 years ago
What is the formula to find the length of an arc when given the central angle and radius?
vazorg [7]
s = \dfrac{n}{360^\circ}2 \pi r

where
s = arc length
n = measure of central angle
r = radius

3 0
3 years ago
Mrs Thomas earns 18.80 per hour for the first 40 hours of work in a week .He earns 1 and a half times and that amount per hour f
s2008m [1.1K]

Answer:

Step-by-step explanation:

Mr Thomas earns 18.80 per hour for the first 40 hours of work in a week. This means that the total amount that he earned in the first

40 hours of work would be

40 × 18.8 = $752

He earns 1 and a half times and that amount per hour for each hour he works over 40 hours in a week. This amount per hour would be

1.5 × 18.8 = $28.2

Last week, Mr Thomas worked 45.5 hours. The extra hours that he worked is 45.5 - 40 = 5.5 hours.

Amount earned for 5.5 hours is

5.5 × 28.2 = $155.1

Total amount that Mr Thomas earned is

752 + 155.1 = $907.1

4 0
3 years ago
What is the area of the shaded region ?​
aleksklad [387]
25 this is it I don’t know if u understand it because I don’t lol

7 0
3 years ago
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