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Law Incorporation [45]

2 years ago

8

peggy is five years older than peter and susan is two years younger than peter the sum of their ages is 15 years how old is each

child

1 answer:

spin [16.1K]2 years ago

5 0

Peggy is 9, Peter is 4, and Susan is 2
9+4+2=15

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The volume of a CONE-shaped hole is 75pi ft cubed. If the hole is 9 feet deep, what is the radius of the hole?

Arturiano [62]

Answer:

The radius of hole is 5 feet

Step-by-step explanation:

Depth of conical hole = 9 feet

Let the radius of hole be r

Volume of conical hole = $\frac{1}{3} \pi r^2 h$

So, Volume of conical hole = $\frac{1}{3} \pi \times r^2 \times 9$

We are given that volume of a CONE-shaped hole is 75pi ft cubed.

So, $\frac{1}{3} \pi \times r^2 \times 9=75 \pi$

$\frac{1}{3} \times r^2 \times 9=75$

$r^2=\frac{75 \times 3}{9}$

$r=\sqrt{\frac{75 \times 3}{9}}$

r=5

Hence The radius of hole is 5 feet

6 0

3 years ago

Need help with all questions

Vesnalui [34]

Answer:

14, 15

Step-by-step explanation:

5 0

2 years ago

Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Setler79 [48]

Answer:

diameter = 3,600 units

Step-by-step explanation:

Let $\pi$ = 3.14

C = 2 $\pi$ r

11,304 = 2(3.14)r

r = 1,800

d = 2r = 2(1,800) = 3,600

7 0

2 years ago

a company uses two vans to transport workers from a free parking lot to the workplace between 7:00 and 9:00 am . one van has 6 m

olganol [36]

Y - x = 6
y + 2x = 57

2y - 2x =12
y + 2x = 57

∴3y = 69
y = 23

23 - x = 6
-x = -17
x =17

large van = 23
small van = 17

4 0

3 years ago

Read 2 more answers

PLEASE HELP 15 POINTS!!!!!!

pychu [463]

Area of a triangle: (b*h) /2
So :
(14,5 * 10.5) /2
=152,25 /2
= 76.125

7 0

3 years ago