All categories

3 years ago

Michelle went shopping for some clothes and found a pair of slacks that cost

Mathematics

1 answer:

rjkz [21]3 years ago

7 0

Answer:

The sirt cost $7.5 before tax.

Step-by-step explanation:

Since the pair of slacks cost twice as much as the shirt, we have:

slacks = 2*shirt

And the total purchase was $22.5, so we have:

slacks + shirt = 22.5

We can create a system of equations such as:

slacks = 2*shirt

slacks + shirt = 22.5

If we apply the first formula on the second we can solve for the value of the shirt, we have:

2*shirt + shirt = 22.5

3*shirt = 22.5

shirt = 22.5/3 = 7.5

So the slacks cost:

slacks = 2*7.5 = 15

You might be interested in

8x-18=30 math homework I need help

horsena [70]

Ok i will give you a hint ok look subtract 18-30 then you will get yhe answef for 8× ok try it

7 0

3 years ago

Read 2 more answers

What are the values of a, b and c in the quadratic equation -2x^2+4x-3=0?

AlladinOne [14]

Answer:

$a=-2\\b=4\\c=-3$

Step-by-step explanation:

In a quadratic equation in the Standard form

$ax^2+bx+c=0$

You need to remember that "a", "b" and "c" are the numerical coefficients (Where "a" is the leading coefficient and it cannot be zero: $a\neq0$ ).

You can observe that the given quadratic equation is written in the Standard form mentioned before. This is:

$-2x^2+4x-3=0$

Therefore, you can identify that the values of "a", "b" and "c" are the following:

$a=-2\\b=4\\c=-3$

4 0

3 years ago

Read 2 more answers

9999999999999999999999999999999999999+888888888888888888888888888888888888

alexandr1967 [171]

Answer:

a lot

Step-by-step explanation:

3 0

3 years ago

Find the measure of one interior angle of a regular 14-gon.

lozanna [386]

$\bf \textit{sum of all interior angles in a polygon}\\\\ n\theta =180(n-2)~~ \begin{cases} n=\stackrel{polygon}{sides}\\ \theta = angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ n = 14\\ \end{cases}\implies 14\theta =180(14-2) \\\\\\ 14\theta =180(12)\implies 14\theta =2160\implies \theta =\cfrac{2160}{14}\implies \theta \approx 154.3^o$

8 0

3 years ago

What is the expanded form for 128,045

Anna11 [10]

Expanded form of 128,045: 100,000+20,000+8,000+40+5

5 0

3 years ago

Read 2 more answers