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Ostrovityanka [42]
3 years ago
7

Four positive whole numbers add up to 39. One of the numbers is a Multiple of 7. The other three numbers are equal. Work out the

result when the four numbers are mutliplied.
Mathematics
1 answer:
MrMuchimi3 years ago
3 0
4 positive whole numbers add up to 39. That means there are 4 factors. One is a multiple of 7. (7,14,21,28,35) The other 3 are equal. Let X equal the multiple of 7, and let Y equal the numbers that are equal.
39=x+3y
Now, we have to fill in the possible multiples of 7.

39=7+3y
39-7=7-7+3y
32=3y
32/3=3y/3
10&2/3=y
When we use 7, the 3 numbers are not equal whole numbers. Let's try the next multiple.
39=14+3y
39-14=14-14+3y
25/3=3y/3
5=y
Yes, that is a whole positive number. It's correct.

We have to plug in the other multiples just to check, but I'll leave out the work.

39=21+3y
6=y
Yes, that is a possible answer.

39=28+3y
3&2/3=y The 3 numbers are not whole numbers.

39=35+3y
1&1/3=y The 3 numbers are not whole numbers.


In conclusion, the TWO possible answers are 39=14+3(5) and 39=21+3(6). If we multiply all four numbers for the first one then it equals 1750, and the second one equals 4536. Not sure what exactly your looking for, but I answered the best I could! Hope this helped. :)
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Step-by-step explanation:

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b) Data:

Volume          cubic centimeters     milliliters    fluid ounces     cups

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3 years ago
Max bought CDs online. He paid $157.20 for 15 CDs, including the $12 shipping and handling fee. If each of the 15 CDs was the sa
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5 0
2 years ago
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Rashid spent $31.84 on gas for his car. Gas was $1.99 per gallon. How many gallons did Rashid purchase?
GarryVolchara [31]

Hello there!

total cost ÷ cost per gallon = gallons bought

So: $31.84 total spent ÷ $1.99 per gallon = 16 gallons bought.

This means 16 is your final answer. I hope this helps and have a great rest of your day!

7 0
3 years ago
Write the linear equation in slope-intercept form 2x - 3y = 6
noname [10]
2x - 3y = 6
3y = -2x + 6

y = -\frac{2}{3}x + 2

m = -\frac{2}{3}
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Linear Equation: 
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7 0
3 years ago
Please Help <br> Problem solving
kodGreya [7K]
P  = $1,100
r = 7.25% = 0.0725

A= P(1+r)^t
⇒ 6600 = 1100(1+0.0725)^t
⇒ 6600/1100 = 1.0725^t
⇒ 1.0725^t = 6

Use log to solve it
log(1.0725^t) = log 6
⇒ t * log 1.0725 = log 6
⇒ t * 0.0303973 = 0.7781512
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⇒ t = 25.599 ≈ 25.60 years


8 0
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