140 is 70 percent of what number

Answers

Answer 1

Answer: 140 is 70% of 200

Change the percentage (70) into a decimal by dividing over 100:

70 / 100 = 0.7

Divide:

140 / 0.7 = 200

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Determine the mechanical energy of this object: a 1-kg pendulum has a speed of 2 m/s at a height of 1 meter.

Answers

I am going to help you using physics......

Mechanical Energy = Potential Energy + Kinetic energy (or vice versa)

ME = PE + KE

PE = mgh ( m= mass; g = gravity constant which is 9.81; h = height)
= (1kg)(9.81)(1m)
PE = 9.81

KE = 1/2mv^2 (m = mass)(v = velocity)
= 1/2(1 kg)(2 m/s^2)
= (1/2)(4)
KE = 2

ME = KE + PE
ME = 9.81 + 2
ME = 11.81

hope this helps :)

Answer:11.8j

Step-by-step explanation:

A cylinder has a base with a radius of 5 cm and a height of 15 cm. What is the volume of the cylinder? (Use π = 3.14.) A.
235.5 cm3

B.
471 cm3

C.
1177.5 cm3

D.
4710 cm3

Answers

im all most postive it is b 471cm but im not sure i hope this helps

The pyramid shown has a square base that is 32 32 centimeters on each side. The slant height is 24 24 centimeters. What is the lateral surface area?

Answers

The answer is 3072 cm².

Lateral surface area of a pyramid can be expressed as:
L = P × l
where:
L - Lateral surface area
P - Perimeter of a base
l - slant height

We have:
L = ?
P = ?
l = 24 cm
a = 32 cm

Perimeter of a base which is a square is:
P = 4 × a
P = 4 × 32 cm
P = 128 cm

Thus,
L = P × l
L = 128 cm × 24 cm
L = 3072 cm²

Therefore, the lateral surface area is 3072 cm².

Answer:

1536

Step-by-step explanation:

Sophie Ruth is eating a 50-gram chocolate bar which contains 30%, percent cocoa.How many grams of cocoa are in the chocolate bar?

Answers

15 grams of cocoa are in the chocolate bar.

The answer to 8-n=-4n

Answers

Hi the answer is 4 for this question

Answer:

n= -2.666667

Step-by-step explanation:

Is 324 inches least, greater, or equal to 27ft

Answers

1 foot = 12 inches
2 feet = (2 x 12 inches) = 24 inches
3 feet = (3 x 12 inches) = 36 inches
.
5 feet = (5 x 12 inches) = 60 inches
.
.
10 feet = (10 x 12 inches) = 120 inches
.
.
20 feet = (20 x 12 inches) = 240 inches
.
.
27 feet = (27 x 12 inches) = 324 inches I guess they're equal !

Yes.

324/12=27

Hope this helps :)

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