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VARVARA [1.3K]
3 years ago
10

40% of what number is 15?

Mathematics
2 answers:
Fiesta28 [93]3 years ago
4 0

Answer:

15 is 40% of 37.5

Step-by-step explanation:


Goshia [24]3 years ago
3 0

15 is 40% of 37.5

40

100

× x = 15

Multiplying both sides by 100 and dividing both sides by 40,

we have x = 15 ×

100

40

x = 37.5

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Find the volume of a pyramid with a square base, where the side length of the base is
vivado [14]

Answer:

Volume of the pyramid =  927.72 m² (Approx)

Step-by-step explanation:

Given:

Length of base = 16.6 m

Height of the pyramid = 10.1 m

Find:

Volume of the pyramid = ?

Computation:

Area of the square base = Side²

Area of the square base = (16.6)²

Area of the square base = 275.56 m²

Volume\ of\ the\ pyramid = \frac{1}{3}(Area\ of\ base)(Height)\\\\Volume\ of\ the\ pyramid = \frac{1}{3}(275.56)(10.1)\\\\Volume\ of\ the\ pyramid = 927.7186

Volume of the pyramid =  927.72 m² (Approx)

3 0
3 years ago
In a shipment of 600 parts, 30 are found to be defective. How many defective parts should be expected in a shipment of 1000?
kobusy [5.1K]
We can except 30/600 = 0.05>> 5%percent,
so 1000 * 0.05 = 50 parts defective
6 0
3 years ago
Harper works at an electronics store as a salesperson. Harper earns a 6% commission on the total dollar amount of all phone sale
agasfer [191]

<u>Answer:</u>

The system of equations are

x + y = 2600   …….equation (1)

and, 6x + 5y = 13700  ……equation (2)

<u>Explanation:</u>

Let x = amount of sales of phone;

y = amount of sales of computer

For phone, 6% of sales is 6% of x, or 6% * x = 0.06x.

Similarly for computer,

5% of y = 0.05y

Given the total sales; x + y = 2600

And commission; 0.06x + 0.05y = 137; or 6x + 5y = 13700

Therefore the system of equations are

x + y = 2600   …….equation (1)

6 x + 5 y = 13700  ……equation (2)

7 0
3 years ago
Need some help on this. any help is appreciated :) !!
kirza4 [7]

If we think about a normal curve / bell curve and the 68-95-99.7 rule, we know that the majority of data will lie within 1, 2, or 3 standard deviations from the mean. The mean is in the center of the curve, and to each side of the mean, 34% of the data lies 1 standard deviation on either side of the mean. Therefore, we need to add and subtract one standard deviation from the mean.

85 + 12 = 97

85 - 12 = 73

Correct Answer: B. 73 - 97

Hope this helps!! :)

7 0
3 years ago
1. Carlos can run 1km in 5.5 minutes. How long will it take him to
lukranit [14]

Answer:

55 minutes

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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