3 years ago

Solve the equation. 3 (x - 1) = 18

Mathematics

2 answers:

marishachu [46]3 years ago

6 0

Expand: 3x-3=18
Move 3 to other side: 3x=21
Divide the 3 over: x=7

In-s [12.5K]3 years ago

4 0

3 ( x - 1 ) = 18
or, 3x - 3 = 18
or, 3x = 18 - 3
or, 3x = 15
or, x = 15 ÷ 3
or, x = 5

Answer:

x = 5

Hope you could understand.

If you have any query, feel free to ask.

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Mrs. Johnson put 22,250 miles

Viefleur [7K]

The change in quantities can be represented as percentage

The percentage decrease in miles driven is 34.83%

The given parameters are:

$\mathbf{Initial = 22250}$

$\mathbf{Final = 14500}$

The percentage decrease is calculated as:

$\mathbf{\%Decrease = \frac{Final - Initial}{Initial} \times 100\%}$

Substitute known values

$\mathbf{\%Decrease = \frac{14500- 22250}{22250} \times 100\%}$

$\mathbf{\%Decrease = \frac{-7750}{22250} \times 100\%}$

$\mathbf{\%Decrease = \frac{-775000}{22250} \%}$

$\mathbf{\%Decrease = -34.83 \%}$

The negative sign implies that, the change represents a decrement.

Hence, the percentage decrease in miles driven is 34.83%

Read more about percentage change at:

brainly.com/question/14801224

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