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2 years ago

Please answer plz

Mathematics

1 answer:

djyliett [7]2 years ago

4 0

x + y = 3.36 --> the boys are splitting $3.36

x = 3y - .12 --> one boy received $.12 less than 3 times as much as the other

--> substitute the second equation for the x in the first equation

(3y - .12) + y = 3.36 --> combine like terms

4y - .12 = 3.36 --> add .12 to both sides of the equation

4y = 3.48 --> divide both sides by 4

y = .87

the other boy gets $0.87

substitute into x = 3y - 12

x = 3(.87) - .12

x = 2.61 - .12

x = 2.49

the first boy gets $2.49

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Is 3 1/4 a rational or irrational number?

slamgirl [31]

Answer:

It is a rational number.

Step-by-step explanation:

A number is only irrational if it has a decimal that never ends and doesn't have a pattern. So a number like Pi (3.141592653589...) is irrational while a number like 1/3 (0.33333333...) is rational.

4 0

1 year ago

Read 2 more answers

James earns $418 per week and has one exemption. His office’s payroll software is broken and can only compute the withholding fo

user100 [1]

James should earn a <em>weekly</em> salary of $ 432.76 with 0 exemptions to give the closest exemption.

<h3>How to estimate the salary without exemption</h3>

In this question, we should estimate the salary <em>earned</em> before one exemption and find the <em>equivalent brute</em> salary with no exemptions. The expected salary is equal to product the <em>brute</em> salary minus the product of the <em>tax</em> rate and <em>brute</em> salary.

According to the table we have the expected salary after one exemption:

$x = 418\cdot \left(1-\frac{19.66}{100} \right)$

$x = 335.82$

After a quick inspection to the <em>salary</em> column for zero exemptions, we find that percentage associated to a salary with no exemptions: ( $r = 22.40\,\%$ )

$C = \frac{335.82}{1-\frac{22.40}{100} }$

$C = 432.76$

James should earn a <em>weekly</em> salary of $ 432.76 with 0 exemptions to give the closest exemption. $\blacksquare$

<h3>Remark</h3>

The exemption table is missing. The complete figure is shown below.

To learn more on salaries, we kindly invite to check this verified question: brainly.com/question/3315407

7 0

1 year ago

PLEASE HELP!! The area of a square is 16 square units. Since 4^2 = 16 and (-4)^2 = 16, both 4 and -4 are square roots for 16. Ex

Rus_ich [418]

we can't say that "both square roots for 16, the area of the square, are the length of each side of the square"

Because one of these solutions does not have a meaning in the given contest.

<h3></h3><h3>Why is the statement incorrect?</h3>

So we have a square with an area of 16 square units, then the side length of that square will be given by:

S^2 = 16 square units

Now, there are two solutions for the above equation, these are:

S = 4 units

S = -4 units.

But being a solution of the equation does not mean that the solutions have sense in the context of the problem.

When we talk about dimensions of figures, negative numbers are not really well defined. We can't say that a square has a side length of "negative 4 units"

That does not make sense, remember that math is just a language, and it should be used to communicate things to others.

So the logical solutions (4 and -4) is not the only thing we need to look at when we state the solutions of a problem, but also the problem itself.

That is why we can't say that "both square roots for 16, the area of the square, are the length of each side of the square"

Because one of these solutions does not have a meaning in the given contest.

If you want to learn more about square roots:

brainly.com/question/98314

#SPJ1

4 0

1 month ago

Help me answer this pls

stira [4]

Answer:

x=5

Step-by-step explanation:

From this information we know that,

$5x - 6 = 3x + 4 \\ 5x - 3x = 4 + 6 \\ 2x = 10 \\ x = 5$

Hope it helps :)

6 0

2 years ago

6y + 2 + 3 + 14y

hichkok12 [17]

Answer:

20y + 5

Step-by-step explanation:

6y + 2 + 3 + 14y

20y + 2 + 3

20y + 5

Have an amazing day!

PLEASE MARK BRAINLIEST!

3 0

2 years ago

Read 2 more answers