All categories

3 years ago

If a, b, and c are prime numbers, do (a + b.and c have a common factor that is greater than 1 ?

1 answer:

8 0

Let's do the math. In the example a =2, b = 3, c = 5. If we are trying to see if the sum of these numbers has a common factor more than 1 do the math. 2 + 3 + 5 = 10. Ten has four factors which are 1, 2, 5, and 10. So the answer to your question is yes.

You might be interested in

Someone help me pls!!!!!!

Pavel [41]

Answer:B

Step-by-step explanation:

3 0

3 years ago

What is 87 multiplied by2?

natulia [17]

87 multiply by 2 is 174

5 0

3 years ago

Read 2 more answers

The mean of four numbers is 43. What are those four numbers?

Andrej [43]

Answer:

42,43,43,44

Step-by-step explanation:

If there are four numbers in a list then the middle 2 numbers should be added up and divided up to give the mean. If we are given the mean we can now work backwards to give us:

$\frac{x+y}{2}$ (where x and y are the 2 middle numbers)

We can also see that x and y must be equal as the mean is an integer.

So:

$43=\frac{2x}{2}$

So x=43 and that is the middle 2 numbers.

I don't exactly know how to explain how i got the other 2 numbers.

7 0

2 years ago

Amy has three pieces of string of length 16 cm, 56 cm and 24 cm respectively. For an art project, she wants to cut the three len

____ [38]

Answer:

8cm

Step-by-step explanation:

Given three pieces of string of length 16 cm, 56 cm and 24 cm respectively. To get the the greatest length that each piece of string can be if she wants to cut the three lengths of string into smaller pieces such that all the pieces are of equal length, with no string left over, we will have to find the greatest common factor for the three lengths

16 = 2 * 8

56 = 7 * 8

24 = 3 * 8

Since 8 is common to all the factors, hence the greatest common factor is 8.

Hence the greatest length that each piece of string can be, in cm is 8cm

6 0

2 years ago

Write the resulting inequality. −9 ≤ −1; Add 10 to both sides

Firdavs [7]

Answer: 1 <= 9

Step-by-step explanation:

Do math

6 0

3 years ago