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Dafna11 [192]
3 years ago
8

Is the number 15 prime or composite?

Mathematics
1 answer:
kramer3 years ago
6 0
It is composite because it can be factored out as 5x3 or 15x1

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Question 3 of 10
Serjik [45]

Answer:

<em>(D)</em>

Step-by-step explanation:

\frac{5(2x-3) -3(x+4)}{9} = \frac{10x-15-3x-12}{9} = \frac{7x-27}{9}

4 0
3 years ago
FInd the solution for 4(x - 5)=2(x - 10) +2x
crimeas [40]
Hello!

You solve this like an algebraic equation

You first distribute the 4 and 2

4x - 20 = 2x - 20 + 2x

Combine like terms

4x - 20 = 4x - 20

subtract 4x from both sides

-20 = 0x - 20

Add 20 to both sides

0 = 0

This means that there are infinite solutions to the equation.

Hope this helps!
3 0
4 years ago
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5 0
3 years ago
Will Has $2.25 in nickels and dimes . If there are twice as many dimes and nickels how many nickels and dimes does will have
Nadya [2.5K]

Answer:

18 dimes and 9 nickels

Step-by-step explanation:

I assume you mean twice as many dimes "then" nickels which would make it 18 dimes = 1.80$ 9 nickels=0.45$

5 0
3 years ago
A store sells 12 cans of nuts for $30 how much would it cost you to buy seven cans of nuts
Stells [14]

Answer: $17.50

Step-by-step explanation:

30 divided by 12 equals 2.5 therefor you would multiply 2.5 by the number of cans purchased, in this case 7.

3 0
2 years ago
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