What is the answer to the equation 3(x+4.5)=36?

Mathematics

2 answers:

kozerog [31]3 years ago

8 0

Answer:

$x = 7.5$

Step-by-step explanation:

$3(x + 4.5) = 36$

$3x + 13.5 = 36$

$3x = 36 - 13.5$

$3x = 22.5$

$x = \frac{22.5}{3}$

$x = 7.5$

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Rufina [12.5K]3 years ago

3 0

Hello

Answer:

x=7.5

Step-by-step explanation:

:-3(x+4.5)=36

Opening the brackets

:-3x+13.5=36

:-3x=36-13.5

:-3x=22.5

:-x=22.5/3

:-x=7.5

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nydimaria [60]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

the length of a rectangle is 2 in more than it's w i d t h the area of a rectangle is equal to 1 inch less than three times a pe

Marizza181 [45]

If we let x and y represent length and width, respectively, then we can write equations according to the problem statement.
.. x = y +2
.. xy = 3(2(x +y)) -1

This can be solved a variety of ways. I find a graphing calculator provides an easy solution: (x, y) = (13, 11).

The length of the rectangle is 13 inches.
The width of the rectangle is 11 inches.

______
Just so you're aware, the problem statement is nonsensical. You cannot compare perimeter (inches) to area (square inches). You can compare their numerical values, but the units are different, so there is no direct comparison.