Posted in Mathematics

F(5) = 4*5-2
f(5)= 20-2
f(5) = 18 the value of x is equal to 5 to make the function equal to 18.


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Posted in Mathematics

If 12 eggs cost $2.04 how much with 18 eggs cost

If 12 eggs cost $2.04, you need to figure out how much 1 egg cost. In order to do that, you need to divide the cost ($2.04) by the amount of eggs (12):

 frac{2.04}{12} = 0.17

1 egg = 0.17

Now that we know how much 1 egg costs, we need to take that number and multiply it by 18:

0.17 * 18 = 3.06

In this case, 18 eggs will cost $3.06.

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Posted in Mathematics

Find the ​twenty-ninthninth term of the arithmetic sequence 22​, 20​, 18​, …

The Twenty-Ninth term is -34. The arithmetic sequence is degrading by -2. Below is the sequence.

22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0, -2, -4, -6, -8, -10, -12, -14, -16, -18, -20, -22, -24, -26, -28, -30, -32, -34

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Posted in Mathematics

What does x equal? 3(14x-15)=-72

The 3(14x-15) is basically multiplying so 3*14x-3*15 so that would be 42x-45=-72. After that, you add 45 on both sides canceling -45 and make the -72 to -27. 42x=-27, now you divide 42 into both sides making x=-27/45.

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Posted in Mathematics

What does x equal? 8(5x+2)=27

8(5x+2)=27

1. Distribute the 8 to both of the terms within the parentheses:
40x+16=27

2. Subtract 16 from both sides:
40x=11

3. Divide both sides on 40:
x=11/40
(you could do the actual division but this is an easier way to show 11 divided by 40)

4. Solution:
x=11/40

Posted in Mathematics

What does x equal? 3(x-7)=138+3x

3(x-7) = 138 + 3x      First multiply
3x-21 = 138 + 3x      subtract 3x from both sides 
-21 = 138            

This is a false statement because -21 does not equal to 138 so the answer is no solution.

Hope this helps! Please give me the brainliest answer if you like it! If you have further questions, please leave a comment or add me as a friend!

Posted in Mathematics

What does x equal? 2x-8=2x+6+x

2x-8=2x+6+x

Add the like terms on opposite side mean add the 2x+x which equals 3x

2x-8=3x+6

Then combine the like terms on opposite side
2x−8−3x=3x+63x
then add 8 to both sides
-1x=14
-1x/-1=x
14/-1=
x=-14

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