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JulsSmile [24]
3 years ago
12

The number 8A3BC5 is a perfect square of a number that is divisible by 3. Find A + B + C if A, B, and C are different digits.

Mathematics
1 answer:
mash [69]3 years ago
5 0

Answer:

11

Step-by-step explanation:

The number is divisible by 9 since the square root is divisible by 3. A+B+C+8+3+5 is a multiple of 9. There are only two sums that are divisble by 9. The number either adds up to 36 or 27. A+B+C add up to 20 or 11. 20 doesn't work since its not a square so the answer is 11.

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A project being analyzed by PERT has 60​ activities, 13 of which are on the critical path. If the estimated time along the criti
mario62 [17]

Answer:

Step-by-step explanation:

What is given:

Formula to be used Z = (X - mean) / standard deviation

Mean = 214

X = 224

Variance = 100

Formula of Standard deviation = sqrt(variance) = sqrt(100) = 10

So Z = (224 - 214) / 10 = 10/10 = 1

For z = 1, the probability is 0.3413; 34.13%  ⇒ The probability of project being completed by 224 days is 34.13%

6 0
4 years ago
There is a bowling ball with a diameter of 216 mm and a baseball with a diameter of 74 mm. Find how many times greater the volum
sp2606 [1]

Answer:

The volume of the bowling ball is about 2.9 times greater.

Step-by-step explanation:

216÷74 = 2.92

8 0
3 years ago
Assume a population of weights is normally distributed.
borishaifa [10]
The answer is 0.9599
8 0
3 years ago
Ben wanted to run with his dad during a race. His dad was running a marathon which has a distance of 26.2miles. Ben goal was to
egoroff_w [7]

Answer:

16.4 miles

Step-by-step explanation:

In this scenario, we are provided with the total distance of the race which Ben's dad ran as well as the fraction of that distance that Ben ran from his goal. In order to calculate the distance in miles that Ben ran we simply need to first multiply the total distance of the race by the fraction that is Ben's goal. We can simplify this even more by dividing the fraction and turning it into decimal form

3 / 4 = 0.75

0.75 * 26.2miles = 19.65miles

Now we can see that Ben's goal was to run 19.65miles but he was only able to run 5/6 of that. Therefore we can multiply this fraction by his goal to get the actual distance that he ran.

5 / 6 = 0.8333

0.8333 * 19.65 = 16.375

Finally, we can see that Ben ran a total of 16.4 miles (rounded to the nearest tenth)

5 0
3 years ago
What is $240.267.40 increased by 147%
vladimir2022 [97]

Increasing by 147% means that we are at 100% right now and we need to get to 247%. That is because 100+147=247. It is pretty tricky in that way.

$240267.40 x 2.47 = $593460.48 approx.

answer: $593460.48 approx.

6 0
4 years ago
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