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timofeeve [1]
4 years ago
15

(3/4)(12x-8)-5x how do I solve this?

Mathematics
2 answers:
IrinaVladis [17]4 years ago
7 0
\frac{3}{4}*(12x-8)-5x=\frac{3(12x-8)}{4}-5x=\frac{36x-24}{4}-5x=\frac{36x-24}{4}-5x=
=9x-6-5x=4x-6
Neporo4naja [7]4 years ago
3 0

Answer:

4-6x

Step-by-step explanation

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There is a charge of $0.18 per mile for extra miles. if tim drives 500 extra miles, how much more will those cost him?
Norma-Jean [14]
Charge for 1 mile = 0.18

So, for 500 miles, it would be: 500 * 0.18 = 90

In short, Your Answer would be: $90

Hope this helps!
7 0
3 years ago
Read 2 more answers
The sum of three numbers is 54. the third number is 2 times the first. the first number is 6 more than the second. what are the
vaieri [72.5K]
Hello!

To solve this, we will use a system of equations. We will have the numbers be represented by x, y, and z, where x will represent the first, y the second, and z the third.

x+y+z=54
z=2x
x=6+y

We know that x is equal to 6+y. We can plug this into the second equation to find z.

z=12+2y

Now we can plug these y values into the first equation to find y.

6+y+y+12+2y=54
18+4y=54
4y=36
y=9

Now we know the value of y. We can plug this into the equations to find the other values.

x=6+9
x=15

z=15(2)
z=30

Just to check, we will add them all up and see if they equal 64.

15+9+30=54

The first number is 15, the second is 9, and the third is 30.

I hope this helps!

4 0
3 years ago
How do you graph -y <= 3x
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I'm not good at graphing, but desmos.com is an online graphing calculator that works really well.
4 0
3 years ago
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Tju [1.3M]

Answer:

y = \displaystyle \frac{5}{2}\, x + 54.

(Equivalently, 5\, x - 2\, y = 108.)

Step-by-step explanation:

Rewrite the equation of the line 2\, x + 5\, y = 10 in the slope-intercept form y = m\, x + b to find the slope m.

5\, y = -2\, x + 10.

\displaystyle y = -\frac{2}{5}\, x + 2.

Therefore, the slope of the line 2\, x + 5\, y = 10 is (-2 / 5).

Let m_1 and m_2 denote the slope of two lines on a cartesian plane. If these two lines are perpendicular to one another, then m_1 \cdot m_2 = (-1).

In this question, the slope of the first line was already found m_1 = (-2 / 5). Solve m_1 \cdot m_2 = (-1) for the slope m_2 of the unknown line:

\begin{aligned}m_2 &= \frac{-1}{m_1} = \frac{-1}{-2 / 5} = \frac{5}{2}\end{aligned}.

The following information are thus available for the requested line:

  • The slope of this line is \displaystyle m = \frac{5}{2}.
  • This line contains the point (x_0,\, y_0) = (-20,\, 4).

Hence, the point-slope form (y - y_0) = m\, (x - x_0) would be a possible choice for the equation of this line:

\displaystyle y - 4 = \frac{5}{2}\, (x - (-20)).

Simplify to obtain the slope-intercept form equation of this line:

\displaystyle y = \frac{5}{2}\, x + 54.

Equivalently:

5\, x - 2\, y = 108.

7 0
3 years ago
Suppose that$ 7000 is placed in an account that pays 6% interest compounded each year.
spin [16.1K]

Answer:

1) 7420

2) 7865.5

Step-by-step explanation:

The Formula for Compound Intertst is Amout(rate/100+1)^number of years

7000(.06+1)^1

7000(.06+1)^2

5 0
2 years ago
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