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Phantasy [73]
3 years ago
15

Johnny and Mark's combined age is 26 years old. Johnny is two years older than twice Mark's age. Write a system of equations and

solve for each of their ages
Mathematics
1 answer:
yaroslaw [1]3 years ago
6 0

m * 2 + 2 = j

Answer:

Mark is 8

Johnny is 18

Step-by-step explanation:

m * 2 = j - 2

26 - 2 = 24

24 / 3 = 8

8 * 2 + 2 = 18

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How to solve for 6x-12+2x=3+8x-15
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6x−12+2x=3+8x−15

Simplify:

6x+−12+2x=3+8x+−15

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8x+−12=8x+−12


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Subtract 8x from both sides.

8x−12−8x=8x−12−8x

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Add 12 to both sides.

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The real numbers are the only solution we can have.


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3 years ago
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viva [34]
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3 years ago
If f(x) = (-x)^3, what is f(-2)?<br> -6<br> -8<br> 8<br> 6
lys-0071 [83]

Answer:

The answer is 8

Step-by-step explanation:

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The floor of a rectangular room is 300 cm long and 180 cm wide. to carpet the floor? How many small tiles are needed​
Vinvika [58]

The number of small tiles are needed​ is 300 tiles.

<h3>Number of tiles needed</h3>

Using area of rectangular formula

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Number of tiles needed = Area of rectangular region / Area of one tile

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Therefore the number of small tiles are needed​ is 300 tiles.

Learn more about number of tiles needed here:brainly.com/question/2136390

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2 years ago
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