2.5y + 3x = 27
5x - 2.5y = 5
Align the variables to make solving this easier.
2.5y + 3x = 27
-2.5y + 5x = 5
You can see that the 2.5y and -2.5y cancel each other out. Then add the 3x and 5x, and 27 + 5.
3x = 27
5x = 5
8x = 32
Divide both sides by 8.
x = 4
Now input that x into one of the equations to get y.
2.5y + 3(4) = 27
2.5y + 12 = 27
2.5y = 15
y = 6
The answer to this system of equations is x = 4, y = 6. (4, 6)
We have that
<span>f(x) = 3x + 2
</span><span>g(x) = x - 3
[</span>g(x) - f(x)]=(x-3)-(3x+2)--------> (x-3-3x-2)-----> -2x-5
the domain is all real numbers
the answer is
<span>–2x – 5; all real numbers</span>
Just add together these two fractions to determine by how much the height of the photo is shortened. 5/8 plus 3/8 comes to 8/8, or 1.
The photo is now 1 inch shorter than it was originally.
Step-by-step explanation:
answer is; c. 2%
Multiply by 100 to convert a number from decimal to percent then add a percent sign %. Converting from a decimal to a percentage is done by multiplying the decimal value by 100 and adding %. The shortcut to convert from decimal to percent is to move the decimal point 2 places to the right and add a percent sign.
pic below
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