Bubba’s car needed work. The mechanic charged him $160 for parts plus $38 per hour for labor. If the bill totaled $300, how many hours of labor were required.

Answer:

Step-by-step explanation:

First multiply 9x3

=[tex]27xy^4x^3y[/tex]

give the terms that dont have a exponent a 1

=[tex]27x^1y^4x^3y^1[/tex]

Multiply terms with the same base

[tex]27x^{1+3} y^4x^3y^1[/tex]

Multiply terms of same base

[tex]27x^{1+3}y^{4+1}[/tex]

Just add all the exponents

[tex]27x^{4}y^{5}[/tex]

Answer:

-1

Step-by-step explanation:

First you do what's inside the brackets,

-3 + 4 = 1

Now we have 1 + a = 0

so we rearrange for a

0 - 1 = -1

a = -1

Have a great day <3

Answer:

1. 50

2. 130

3.130

Step-by-step explanation:

50 is a vertical angle to 1. so it has the same value.

a line is 180 so 180-50=130

Answer:

-42/8

Step-by-step explanation:

Answer: -21/4 or 5 1/4

Step-by-step explanation:

to divide fractions, multiply by the reciprocal of the divisor

7/8*-6/1

then, just multiply the numbers to get -42/8. then, simplify by dividing both the numerator and denominator by 2. this will get -21/4

The solution of the system of equations  2x+3y=9 and y=x+8 is x = -3 and y = 5.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the two equations are 2x + 3y = 9 and y = x + 8. The value of x and y is calculated as:-

2x + 3y = 9

y = x + 8

Solve the equations as;-

2x + 3y = 9

-2x + 2y  = +16

___________

      5y = 25

        y = 5

y = x + 8

x = 8 - 5

x = 3

Therefore, the solution of the system of equations  2x+3y=9 and y=x+8 is x = -3 and y = 5.

To know more about an expression follow

https://brainly.com/question/1859113

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Answer:

0

Step-by-step explanation: 2x+8=2x+6 --> 8=6

8 cant be equal to 6 so this equation is wrong and has no solution.

Answer:

5, 1.4

Step-by-step explanation:

you just take a value of x with its matching value of y and divide it

Answer:

1) 5/1 is the slope, and 10 is the y intercept.

2) Inital amount is the y intercept, and 10 is the rate of change.

3) Should be easy from there! Just graph (0,10), and go up 5, right 1, and repeat.

Step-by-step explanation:

This is in slope intercept form! Where 5 is the slope, and 10 is the y intercept. The rate of change is another way of saying slope, and the inital amount is your starting value, or y intercept.

Answer:

The answer is 246

Step-by-step explanation:

Just add 234+12

I think its 24? or am i just not smart

Answer:

I believe the answer is neither

Step-by-step explanation:

9514 1404 393

Answer:

  9.1 cm

Step-by-step explanation:

The law of cosines can be used to find the missing side.

  l² = m² +n² -2mn·cos(L)

  l² = 8² +2.8² -2(8)(2.8)cos(103°) ≈ 81.9178

  l ≈ √81.9178 ≈ 9.0508

The length of l to the nearest tenth centimeter is 9.1 cm.

Answer:

[tex]y \geq2x - 5[/tex]

Step-by-step explanation:

First off, we can tell that the line has a positive slope because it's going upwards to the right. To find the slope of the line exactly, we will start at the first given point and count the units until we get to the next point.

(Remember that slope is written as rise/run.)

So the slope is 2/1 or just 2.

Next, we can tell that the y-intercept is -5, because that's where the line crosses the y-axis.

Additionally, since the line is solid, the inequality sign will either be the "greater than or equal to" sign, or the "lesser than or equal to" sign. In order to tell which one to use, we will look at the shaded area. Since the shaded area is above the line, y will be "greater than or equal to" the line.

So to put it together: The line written in slope-intercept form, is

[tex]y \geq2x - 5[/tex]

Hope this helps you :)

Answer:

-24 does not equal 0, so therefore there's no solution.

Step-by-step explanation:

In order to get x by its self, you first have to subtract 6x on both sides to get -24 = 0. Next divide 12 on both sides to get -2 = x.

Hope this helps you :)

(Answer has been edited, because I realized I did the first step wrong, my bad.)

Answer:

41.53333

Step-by-step explanation:

The answer is a decimal, and not a whole number because 623 is not divisable by 15. But if we we're to round 41.53 by the nearest tenth, your new rounded number would be: 42.

Have a great day! :D

Answer:

The third one

Step-by-step explanation:

Answer:

Step-by-step explanation:  

     10 cents x 7 cents= 70 cents

     5 cents x 3 cents= 15 cents    

     70

  + 15

     85

Answer:

8/7

Step-by-step explanation:

2/7 *4/1 = 8/7

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The LCM of 5 and 6 is 30

Answer:

30

Step-by-step explanation:

for 5: 5,10,15,20,25,30

for 6: 6,12,18,24,30

Answer:

the answer is 136.24 minutes

Step-by-step explanation:

i took the test and it was right

Answer:

slope = 3/8

Step-by-step explanation:

slope is rise over run

use the points (-4,1) and (4,4)

going up 3 and over 8 will connect you to the other point

Answer:55 degrees

Step-by-step explanation:

this is just an addition to the great reply above.

[tex]\begin{array}{ccll}\$&tickets\\\cline{1-2}54&3\\x&2\end{array}\implies \cfrac{54}{x}=\cfrac{3}{2}\implies 108=3x\implies \cfrac{108}{3}=x\implies \boxed{36=x}[/tex]

Answer:

Step-by-step explanation:

First one 1, can’t bet negative amount of money

x = 130°

If parallel lines are cut by a transversal, alternate exterior angles will be congruent.

Answer:

130 degres

they lie on the same line so the angles are equal

Answer:

c

Step-by-step explanation:

i think it's 1

Let x = gallons consumed by car 1

Let y = gallons consumed by car 2

We set up our equations:

35x+40y = 1850        eq1

x+y = 50                   eq2

Substituting eq 2 into eq 1,

35x+40(50-x) = 1850

35x+2000-40x = 1850

-5x+2000 = 1850

-5x = -150

  x = 30

Substitute value of x into eq 2.

x+y = 50

30+y = 50

     y = 20

Car 1 consumes 30 gallons of gas.

Car 2 consumes 20 gallons of gas.