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bekas [8.4K]
3 years ago
14

A number is multiplied by 4, and then 6 is added to the product. The result is 18. What is the number? I already know that the a

nswer is 3 but I have to check my answer. How do I check it?
Mathematics
1 answer:
allsm [11]3 years ago
4 0
You can check your answer by multiplying 3 with 4 <span>and then add 6  to the product. Then your result will be 18.</span>
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What is 74 multiply by 65?
Nady [450]
That equals 4,810. Make sure to have a placeholder when you multiply
4 0
3 years ago
A number cube has sides numbered 1 through 6 the probability of rolla 2 is 1/6 what is the probability of not rolling a 2
Furkat [3]

Answer:

5/6

Step-by-step explanation:

It would be 5/6 because there are 5 possible answers other than 3 making it 5/6

5 0
3 years ago
In January of 2011, the U.S. saw an increase in gas prices. Imagine the average price per gallon was $3.12 with a standard devia
Arada [10]

Answer:

31.92%

Step-by-step explanation:

We are given;

Population mean; μ = $3.12

Sample mean; x¯ = $3.16

Sample size; n = 10

Standard deviation; σ = $0.27

Z-score formula is; z = (x¯ - μ)/(σ/√n)

z = (3.16 - 3.12)/(0.27/√10)

z = 0.04/(0.08538)

z ≈ 0.47

Now, the percent of other sample means, based on 10 gas stations, that would be greater than the one observed is;

P(x¯ > 3.12) = 1 - P(z < 0.47)

From z-table attached P(z < 0.47) = 0.68082

Thus;

P(z > 0.47) = 1 - 0.68082

P(z > 0.47) ≈ 0.3192

This expressed in percentage is 31.92%

4 0
2 years ago
Please help me ASAP. ​
igomit [66]
<h3><u>Solution: </u></h3>

Radius of Cylindrical Pillar , r = 28 Cm = 0.28 m.

  • Height, h= 4 m.

Curved surface area of a Cylindrical = 2πrh.

Curved surface area of a pillar -

=  >  \: 2 \times   \frac{22}{7}  \times 0.28 \times 4 = 7.04 {m}^{2}

Curved surface area of 24 such Pillar :-

(7.04 x 24 = 168.96m²)..

  • Cost of painting an area of 1 m² = Rs8...

• Therefore , cost of painting 1689.6m² :-

( 168.96 x 8 = Rs 1351.68)...

3 0
2 years ago
00000000505 as an scientific notation.
vichka [17]
<span>The number 123,000,000,000 in scientific notation is written as : 1.23 * 10 to the eleventh power.
Thats an example to help you out ;) 

</span>
6 0
3 years ago
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