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2 years ago

What is 65% of 20? ye

Mathematics

2 answers:

irga5000 [103]2 years ago

5 0

Answer:

Step-by-step explanation:

x/20 = 65%/100

20 x 65 = 1300

1300 divided by 100 = 13

Fantom [35]2 years ago

4 0

Answer:13

First you have to turn the percent into a decimal, and then multiply it by the original number.

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Step-by-step explanation:

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3 years ago

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Debora [2.8K]

Answer:

the side of a square is 45 m

Step-by-step explanation:

The computation of the side of the square field that contains the similar area as compared with rhombus is given below:

As we know that

Area of rhombus = Base × Altitude

= 81 × 25

= 2025

And, area of Square = Side × side

2025 = side^2

side = √2025

= 45m

Hence, the side of a square is 45 m

8 0

2 years ago

A new experimental strain of pepper plants was being studied to estimate how much fruit one plant would produce in a typical gro

zmey [24]

Answer:

58.9% produced produced peppers weighing between 13 and 16 pounds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 15

Standard Deviation, σ = 1.75

We are given that the distribution of weight of peppers is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(peppers weighing between 13 and 16 pounds)

$P(13 \leq x \leq 16) = P(\displaystyle\frac{13 - 15}{1.75} \leq z \leq \displaystyle\frac{16-15}{1.75}) = P(-1.142\leq z \leq 0.571)\\\\= P(z \leq 0.571) - P(z < -1.142)\\= 0.716 - 0.127 = 0.589 = 58.9\%$

$P(13 \leq x \leq 16) = 58.9\%$

58.9% produced produced peppers weighing between 13 and 16 pounds.

7 0

3 years ago

If 5 tractors can plow a field in 4 hours, how many hours will it take 3 tractors to plow the field?

Mrac [35]

The number of hours required for 3 tractors to plow the field is 2.4 hours

Solution:

Given that 5 tractors can plow a field in 4 hours

We have to find out number of hours required for 3 tractors to plow the field

5 tractors can plow a field in 4 hours, So time taken for 1 tractor

$\text{ time taken for 1 tractor } = \frac{\text{ time taken for 5 tractor}}{5}$

$\text{ time taken for 1 tractor } = \frac{4}{5} \text{ hours }$

So time taken for 3 tractors is given as:

time taken for 3 tractor = time taken for 1 tractor x 3

$\text{ time taken for 3 tractor} = \frac{4}{5} \times 3 = \frac{12}{5}$

$\rightarrow \frac{12}{5} = 2.4$

So number of hours required for 3 tractors to plow the field is 2.4 hours

3 0

2 years ago

A sphere has a radius of 3 and a hemisphere has a radius of 6. Compare the ratio of the volume of the sphere to the volume of th

Trava [24]

S=(4πr^3)/3, H=(4πr^3)/6

S/H=2rs^3/rh^3

S/H=(2*3^3)/6^3

S/H=54/216

S/H=1/4

So the volume of the hemisphere is 4 time the volume of the sphere.

8 0

2 years ago

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