Use the following situation for the next few questions:
At Elsa's auto shop, it takes her 12 minutes to do an oil
change and 15 minutes to do a tire change. Let x be the
number of oil changes she does. Let y be the number of tire
changes she does. We are wondering what combinations of
the two tasks she can complete in 60 minutes or less.

1-If Elsa were to only do oil changes, no tire changes, how
many could she do in 60 minutes or less?

Answers

Answer 1

Answer:

5 oil changes.

Step-by-step explanation:

60 = 12x + 15y

60 = 12x + 15(0)

60 = 12x + 0

60

---- = x

12

5 = x


Related Questions

Which of the following is true? A. Perpendicular lines never intersect each other. B. Parallel lines always intersect each other. C. Parallel lines are always in the same plane. D. Perpendicular lines are not in the same plane.

Answers

Answer:

C : Parallel lines are always in the same plane.

Step-by-step explanation:

Parallel lines must be coplanar

Answer:

The answer is, parallel line are always in the same plane.

Step-by-step explanation:

Definition of parallel line:

Lines in a plane that are always the same distance apart are called parallel lines. Parallel lines do not cross.

A - Perpendicular lines must always cross at least once.

B - Parallel lines should never cross.

D- This isn't always the case.

C is true.

Skewed lines are those that are not in the same plane.

To know more about parallel line here, https://brainly.com/question/24607467

#SPJ2

Un árbol mide 10m de altura proyecta una sombra de 15m,¿ Cual es la altura de un faro que proyecta una sombra de 30m a la misma hora?

Answers

La repuesta es 50m de de altura

Find the value of x and show all steps please

Answers

Answer:

[tex]x=3[/tex]

Step-by-step explanation:

[tex](x)(4x)=(4)(9)[/tex][tex]\frac{4x^2}{4} =\frac{36}{4}[/tex][tex]\sqrt{x^2}=\sqrt{9}[/tex][tex]x=3[/tex]

---------------------

hope it helps...

Solution :-

[tex] \implies \sf{(x)(4x) = (4) \: (9)}[/tex]

[tex] \implies \sf{ \frac{4 {x}^{2} }{4} } = \frac{36}{4} [/tex]

[tex] \implies \sf{ \sqrt{ {x}^{2} } = \sqrt{9} }[/tex]

[tex] \sf \boxed {x = 3}[/tex]

________________________

Thank you

Hope it helps uh :)

What is the perimeter of the pentagon in feet? (NO LINKS)

Answers

Answer:

21.6

Step-by-step explanation:

3.8 x 3.8 x 4.4 x 4.4 x 5.2 + 21.6

Simplify. Write the expression using only positive exponents.

Answers

Answer:

Step-by-step explanation:

Answer:

8 [tex]\frac{1}{w^{5}}[/tex]

Step-by-step explanation:

Write a recursive rule for an= Зn — 6.

Answers

Answer:

Explicit formula: a(n)=3n-6

Recursive formula: a(n)=-3+(n-1)3 <--

Step-by-step explanation:

a(n)=3n-6 where a(1)=3(1)-6=-3 and d=3

Plug values into recursive formula:

a(n)=a1+(n-1)d

a(n)=-3+(n-1)3

BLANK + 308 + -126 = 450

Answers

Answer:

268

Step-by-step explanation:

Answer:

268

Step-by-step explanation:

 450

- 126

Find sin(β) in the triangle.

Answers

Answer:

4/5

Step-by-step explanation:

Given :-

A right angled triangle with sides as 3 , 4 and 5 cm .

We need to find the value of sin(β) in the given triangle . We know that the ratio of sine is ,

[tex]:\implies[/tex] sin(β) = p/h

Where p is perpendicular and h is hypontenuse.

[tex]:\implies[/tex] sin(β) = 4/5

Hence the required answer is 4/5.


Graph y = -1/4 x + 6 in slope intercept form

Answers

Answer:

here are the coordinates to use to graph.

(0,6)

(4,5)

Step-by-step explanation:

put a dot on those coordinates, then draw a line to make the two points connect.

Answer:

I have a graphing calculator so i used that.

Step-by-step explanation:

Included is the graph (on 10 x 10 axis) and the table

hope this helps,

<3 Austen and Addie

What is the intermediate step in the form (x + a)2 = b as a result of completing the
square for the following equation?
X2 + 23x – 19 = 9x - 4

Answers

Answer:

(x + 7)^2 = 64

Step-by-step explanation:

x^2 + 23x – 19 = 9x - 4

x^2 + 23x - 9x = -4 + 19

x^2 + 14x = 15 = 0

Completing the square:

(x + 14/2)^2 - (14/2)^2 = 15

(x + 7)^2 - 49 = 15

(x + 7)^2 = 64

What does -2(x) equal to.

Answers

Answer:

-2(x)=-2x

Step-by-step explanation:

-2(x)=-2*x=-2x

can someone help me with this first one to answer gets brainllest and 20 points.

Answers

Answer:

Sorry i don't get this at all. what grade is this ?!!?!?!?

Step-by-step explanation:

Find the missing exponent. I really need help with this question

1/169=(1/13)?

? =

Answers

The answer for thi question is 2

Lana draws a triangle( LMN) on the coordinate plane. What is the perimeter of the triangle( LMN)? Round to the nearest unit.

Answers

Answer:

The answer is "25".

Step-by-step explanation:

Please find the graph in the attachment.

[tex]Longest \ side= 12[/tex]

Calculating the triangle two other sides:

[tex]=\sqrt{3^2+6^2}\\\\=(9+36)\\\\=45[/tex]

let

[tex]\to \sqrt{45}= 6.7.\\\\\to 6.7\times 2=13.4\\\\\to 13.4+12=25.4 \approx 25[/tex]

less than a number is 18. What is the number (n)?

Answers

Answer:

Step-by-step explanation:

 

18<n

What is the weight of a 22 kg object on the surface of the moon (g = 1.6 m/s2)?

Answers

Weight is the gravitational force by which a massive object attracts on another object .

So,

f = m × g

where,

f = force / weight m = mass ( 22 kg )g = acc due to gravity ( 1.6 m/s² )

=》

[tex]f = 22 \times 1.6[/tex]

=》

[tex]35.2 \: \: newtons[/tex]

Answer:

[tex]35.2 \: is \: your \: answer[/tex]

I hope it helps

have a nice day

#Captainpower

NEEP HELPS ASAP IMAGE BELOW!!!

Answers

Answer:

every 5 units to the left you go 28 upwards???

i hope this helps have a nice day

Step-by-step explanation:

6 because you need to find the slope of this and 6 is the slope

The measures of interior angle of a convex pentagon are in ratio 1:2:3:4:5. Find the measures of each angle

Answers

Answer:

The angles have measurements 36, 72, 108, 144, and 180.

Step-by-step explanation:

Pentagon has 5 sides and 5 angles.

The amount of triangles formed by choosing one vertex and drawing from that vertex to every nonadjacent vertex is 3.

3(180)=540 which is the sum of the angles in a pentagon.

So since the ratio is 1:2:3:4:5, that means the angles are 1x,2x,3x,4x, and 5x.

We have the equation 1x+2x+3x+4x+5x=540 to solve.

15x=540

Divide 15 on both sides:

x=540/15

x=36

1x=36

2x=72

3x=108

4x=144

5x=180

The angles have measurements 36, 72, 108, 144, and 180.

HURRY!!!
What are the solutions of the quadratic equation (x + 3)^2 = 49?
O x = -2 and x = -16
O x = 2 and x = -10
x = 4 and x = -10
0x = 40 and x = -58

Answers

Answer:

√49=±7

x+3=7

x=4

x+3=-7

x=-10

x is 4 and -10

4 students took the spelling quiz. The mean of their quiz scores is 15. A fifth student took the quiz and scored 10. What is the new mean of the five scores?​

Answers

Answer:

14

Step-by-step explanation:

Fill in the table using this function rule. y=-3x-3 ​

Answers

Answer:

When x = -2, y = 3

When x = -1, y = 0

When x = 0, y = -3

When x = 1, y = -6

Step-by-step explanation:

Given:

y = -3x - 3

Fill in the table using the following value for x

When x = -2

y = -3x - 3

y = -3(-2) - 3

y = 6 - 3

y = 3

When x = -2, y = 3

When x = -1

y = -3x - 3

y = -3(-1) - 3

y = 3 - 3

y = 0

When x = -1, y = 0

When x = 0

y = -3x - 3

y = -3(0) - 3

y = 0 - 3

y = -3

When x = 0, y = -3

When x = 1

y = -3x - 3

y = -3(1) - 3

y = -3 - 3

y = -6

When x = 1, y = -6

PLS HELP AND EXPLAIN.... AND NO LINKS PLS!!!

Answers

Answer:

surface area is- 198 and volume is 162

Simplify the expression 2√6 -5√54

Answers

Answer:

- 13[tex]\sqrt{6}[/tex]

Step-by-step explanation:

Using the rule of radicals

[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]

Simplifying [tex]\sqrt{54}[/tex]

[tex]\sqrt{54}[/tex]

= [tex]\sqrt{9(6)}[/tex]

= [tex]\sqrt{9}[/tex] × [tex]\sqrt{6}[/tex]

= 3[tex]\sqrt{6}[/tex]

Then

2[tex]\sqrt{6}[/tex] - 5[tex]\sqrt{54}[/tex]

= 2[tex]\sqrt{6}[/tex] - 5 (3[tex]\sqrt{6}[/tex] )

= 2[tex]\sqrt{6}[/tex] - 15[tex]\sqrt{6}[/tex]

= - 13[tex]\sqrt{6}[/tex]

What is the value of this expression when n=-15
-2|n+6|

Answers

Answer:

18 I believe

Step-by-step explanation:

-2 |n + 6|

-2 |-15+6|

-2× -9

18

The mean of six numbers is 8, and the mean of another four numbers is 5.
What is the mean of all ten numbers?​

Answers

Answer:

6.8

Step-by-step explanation:

8 * 6 = 48 (to reverse dividing by 6 to basically un-average the 6 numbers).

5 * 4 = 20 (to un-average these numbers as well).

48 + 20 = 68

68 / 10 = 6.8

Basically by doing this you are still adding all the numbers together & then dividing by 10 as if you added them all up at once & not in a group of 6 & a group of 4.

Hope this helped. :)

9.
An ice cream cone can hold about 134 cm of ice cream. If the radius of the
cone is 4 cm, about what is the height of the cone?

Answers

8cm high dudeiooooooo

A football coach compared the yards per game of two of his running backs over the course of 10 games.


Based on the data represented in the box plots, which football player had greater success during the 10 games?

Nasir was more successful because he had the greatest number of yards in one game.
Aaron was more successful because he had a greater total spread.
Nasir was more successful because he had the greater measure of center.
Aaron was more successful because he had an outlier.

Answers

Answer: C. Nasir was more successful because he had the greater measure of center.

Step-by-step explanation: Just did the assignment in Edugenuity

Answer:

Nasir was more successful because he had the greater measure of center.

Step-by-step explanation:

Given p(x) = 2x³ + 7x² + 2x - 3 and p(1/2) = 0, then the factor of p(x) is

Options :

A(2x + 1)

B(2x - 1)

C(x - 2)

D(x + 2)

no spam and kindly explain your answer!​

Answers

THE ANSWER IS B (2x-1)

Given p(x) = 2x³ + 7x² + 2x - 3 and p(1/2) = 0p(1/2) = 0, hence x =1/2now x= 1/22x= 12x-1 = 0Answer- p(1/2) = 0, then the factor of p(x) is 2x-1

Solve for x, and JUSTIFY your answer

Answers

Answer:

60

Step-by-step explanation:

every angle is the same and 1/3 of 180 is 60

Help me please I’ll give brainliest

Answers

Answer:

30 degree

Step-by-step explanation:

acb is 60 equilateral triangle

then dac angle is 120 double of centre angle

triangle dac is isoceles so 2 into angle acd=180-120

then acd =30

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