Ask question

Ask question

All categories

3 years ago

15

Cynthia made the conjecture that the sum of any prime number and any composite number is a composite number.

1 answer:

Vladimir79 [104]3 years ago

8 0

Well,

We will need an equation in the form of:
(prime no.) + (composite no.) = (prime no.)

Options C and D immediately are rejected because the result is a composite number.

Option A looks like it could be a counterexample, but 2 is a prime number.

That leaves option B, which is the correct option.

You might be interested in

What percent of 25 is 5

SSSSS [86.1K]

What percent of 25 is 5?

5/25

5 ÷ 25 = 0.2

0.2 × 100 = 20
20%

5 is 20% of 20.

6 0

3 years ago

Read 2 more answers

Simplify 6(x + 2) + 7.

Elina [12.6K]

Answer:

6x+19

Step-by-step explanation:

First thing first, we need to multiply the 6 into the equation. We do this by multiplying the x and 2 by 6.

6(x+2)+7

Multiply

6x+12+7

Now we need to combine like terms by adding the 12 and 7

6x+19

There it is simplified.

8 0

3 years ago

10×+73=7 solve two step equations by using inverse operations. and use inverse operations to solve the equations

MrMuchimi

Answer:

x=-67/10

Step-by-step explanation:

What you have to do is first subtract 73 from both sides. that makes it 10x=7-73. That is 10x=-67. Then divide both sides by 10. That is x=-67/10

Can I get brainliest

7 0

3 years ago

Read 2 more answers

Make a table of values, then graph.<br><br> y = 2x + 1

hram777 [196]

I put the answer below in the picture!

7 0

3 years ago

The total amount of deductions from an employee’s gross pay is $83.20. If the gross pay is $378.18, what percent of their gross

Masja [62]

Answer:

22%

Step-by-step explanation:

A percent of something can be thought of as part of that thing divided by the total amount of the same thing and multiplied by 100%.

In this case, the part of the thing is part of a paycheck. The total thing is the total paycheck.

$Percent=\frac{Part}{Total} *100%$ %

$Percent=\frac{83.20}{378.18} *100=0.2200*100=22.000$ %

4 0

2 years ago