The time is took Tayna to complete different sets of math problems varied directly with the number of problems in the set Tayna's data is shown in the table. If x = time, and y = the number of problems in the set, which equation models Tayna's direct variation
A. y = 12x
B. y = 1.2x
C. y = x divided by 12
D. y = x divided by 1.2

Answers

Answer 1

Answer:

C

Step-by-step explanation:

time is directly proportional to the number of problems in the set

=> x = ky

k = constant of proportionality

when k = 12

x = 12y

by making y the subject, we divide both sides by 12

=> y = x/12


Related Questions

)Elliot has been running a lawn care business since 2000. He cuts grass, trims, and weed whacks yards for his customers throughout the season. Each year, he has increased his fee by the same amount. The table shows what Elliot charged each customer for two given years of his business:


Year Lawn Care Fee
2000 $750
2010 $1350


A. What is the rate of change and initial value for Elliot’s business? How do you know?
B. Write an equation in slope-intercept form to represent the fees that Elliot charges each year.

Answers

Answer:

Rate of change = (1350 - 750)/(2010 - 2000) = 600/10 = $60

Initial value = $750

Equation is y = 60x + 750; where y is the amount charged to customer and x is the number of years from 2000.

If 2x - 3 = 3x - 7, what is the value of x?

Answers

Answer:

x=4

Step-by-step explanation:

2x-3=3x-7

Subtract 2x from both sides of the equation

-3=x-7

Add 7 to both sides of the equation to isolate x

4=x

What is the slope in the equation:
y = 3/2x + 32

Answers

Answer:

3/2

Step-by-step explanation:

Answer:

3/2

Step-by-step explanation:

To find the slope of a line given the equation of the line, first write it in slope-intercept form. Use inverse operations to solve for y so that it is written as y=mx+b. Then you can easily see the slope since it is the coefficient of the x variable, or the number in front of x.

Solve for y in terms of ......

Answers

Answer is b because when you solve x for y 21 = c

help, this is incorrect! (can you help with working out?)

Answers

Answer:

262 × 39 ÷ 100 = 10218 ÷ 100 = 102.18

Step-by-step explanation:

This is the correct answer your's is wrong.

look at my favorite player​

Answers

Answer:

who was that is TD's wrld

Answer:

yep umm ... he is very Good player... Good choice

A prescription for Singulair costs $14 for a month's supply. How much will this prescription cost for a year?
PLS HELP HW DUE IN 2MIN!!!!

Answers

168 dollars I hope this helps

A Flags amusement park is just opened
up. A year pass costs $150,
but if you buy a pass this month, you can
receive a $75 discount. What is the
percent discount you can save ?
Round your answer to the nearest
hundredth.

Answers

Answer:

50%

Step-by-step explanation:

All it asks," what percent of 150 is 75"

then, (75/150)*100=50

Find the slope from the table

Answers

Answer:

1

Step-by-step explanation:

I used DESMOS and to find this answer

Hope this Helped

help meee will give brainly! Find the domain of the function f(x)=5x−9 .
DONT SAY I DONT KNOW

Answers

Answer and Step-by-step explanation:

[tex]\frac{5}{x-9}[/tex]

The domain is all real numbers except 9 (positive)

This is because we can't have 0 in the denominator, and when x equals 9, then the denominator is 0. Anything divided by 0 is undefined, which is why 9 (in this equation) is not included.

#teamtrees #WAP (Water And Plant)

what is the measure of the missing angle?

Answers

Answer:

137 degrees

Step-by-step explanation:

By using the fact that a triangle contains 180 degrees and angles made by the same lines are congruent we can find out that the top angle in the first triangle is 45 degrees. We can then figure out that the missing angle in that same triangle is 75 degrees by adding 45 and 60 and subtracting that from 180. Then we add that 75 degrees to 68 degrees to get 143 degrees which we can use to discover that the corner of the triangle that connects to the other triangle is 37 degrees. From there we know that triangles contain 180 degrees, so the remaining value is 43 and with this we can discover that the value of the asked for angle is 137 degrees.

A cube of length 7 cm is painted on all its faces. What is the total surface area of the
painted surfaces?

Answers

294 cm^2
7x7=49
49x6= 294

Answer:

294

Step-by-step explanation:

To find the surface area of a cube, first we need to realize that a cube, on its surface, is made up of 6 squares forming a box. That means that all we need to do is find the surface area of one of those squares, and multiply it by 6. So what we do is take side length 7, and square it, giving us 49. Then, we multiply that by 6 giving us 294. The formula for this, in short, is y=6a^2, y being the total surface area and a being a side length, in this case 7.

Hope this helps!! (and brainliest is always appreciated <3)

Eddie is twice as old as Michael. Michael's age is represented by a. Which
expression can be used to find Eddie's age?
A 2+a
B 2-a
C 2a
D 2a+2

Answers

D is how you would find Eddie’s age



X+2/3=-5 I need help solving this

Answers

Answer:

X = [tex]-5\frac{2}{3}[/tex]

Step-by-step explanation:

X + 2/3 = -5

X = [tex]-5\frac{2}{3}[/tex]

X=-5-2/3
X=-17/3
X=-5 2/3 or -5.6

A straight line measures 180°. A straight line and a triangle are
touching as shown in the figure below.
80
16°
What is the value of x in the figure?
A 64
B 84
C 90
D 96

Answers

Answer:

b

Step-by-step explanation:

you add 80 and 16 together and subtract it from 180

so you do 180-96

and you get 84

help!

Questions: fifteen litera of gasoline coast ₱725.what is the coast per litter​

Answers

Answer:

₱48.33 is the cost per litter.

Step-by-step explanation:

In order to find the unit rate of an object, divide the cost by the amount of the object. 725/15=48.33

I need help plz help me on this i will give u brainless on this question

Answers

Answer:

Equations: y=x+3 and y=-1/2x

solution: (-2,1)

Step-by-step explanation:

I will mark you as the brainiest if you get this correct
Thx so much xxx

Answers

Answer:

125 ml

Step-by-step explanation:

250 ml is required to make 8 pancakes, so in order to make half as many pancakes, you will need half as much milk.

250 ÷ 2 = 125

If x=3m-4 and y=6-m, which of the following expresses y in terms of x

Answers

Answer:

What you want to do is solve for m in whichever equation it's easier to so in, then substitute that in to the other equation. For instance:

X=3m-4

Y=6-m

Solve the 2nd equation to get m=6-y

Plug that into the first equation to get x=3(6-y)-4

X=18-3y-4

X-14=-3y

14-x=3y

Y=(14-x)/3

What is the value of x in the equation below
6(x-8)=72

Answers

Answer:

x = 20

Step-by-step explanation:

6(x-8)=72

6x-48=72

6x-48+48=72+48

6x=120

6x/6=120/6

x = 20

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

Answer: x=20

Step-by-step explanation:

Distribute the 6 to the values in the parentheses

6x - 48 = 72

Add 48 to each side

6x = 120

Divide each side by 6

x = 20

solve the equation 3(x+1)+2x=1/2(10x-14)
Plz show the steps

Answers

Answer:

x=-2

Step-by-step explanation

1) Remove () and Rewrite

13x+13+2x=1/2x2(5x-7)

2) Collect Like Terms

15x+13=5x-7

3) Move Terms

15x-5x=-7-13

4) Divide Both Sides

10x=-20

ANSWER IS x=-2

Answer:

0=−20

Step-by-step explanation:

Distribute

Combine like terms

Combine multiplied terms into a single fraction

Multiply by 1

Subtract from both sides of the equation

Simplify the expression: -6(-x +
3) – 2x.

Answers

Answer:

4x-18

Step-by-step explanation:

-6(-x +  3)–2x

first u expand =6x-18-2x

then u add up the like terms

Answer:

6x+-18-2x

6x+2x+18

8x+18

Step-by-step explanation:

The graph of a function is shown:

Answers

Answer:

D) {-2, 1, 2, 5}

Step-by-step explanation:

The "output" of a function will never be an ordered pair, so we can immediately eliminate options A and B.

In this case, the output refers to the y-values of the function.  

Since the ordered pairs are: (-2, 5), (-1, 1), (2, -2), and (5, 2), we see that the output of this function is: 5, 1, -2, 2.

Thus, choice D is correct.

Let me know if this helps!

EFGH is translated 6 units to the left and 3 units up.
2 3 4 5 6 7 8
E(4-1)
FIO, 3)
H6, -2)
G(2,-4)
-6
What are the coordinates of G'?
O A. G'(8, -7)
O B. G'(5, -10)
O C. G'(-4,-7)

Answers

Answer:

the correct answer is G´(-4, -1)

Step-by-step explanation

i really hope this helps!

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position. The coordinates of G' are (-4,-1).

What are coordinates?

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.

Given the coordinates of G are (2,-4), now if the point is translated 6 units to the left and 3 units up. The new coordinates of G' are:

G' = (2-6, -4+3)

G' = (-4, -1)

Hence, the coordinates of G' are (-4,-1).

Learn more about Coordinates:

https://brainly.com/question/23450276

#SPJ2

An elementary school
busses hold 48 students
rides a bus to and from
How many busses do they
ANSWER
How do you know your answer is com

Answers

Answer:

48 x 2 if its to and from use caculator and do " 48 x 2"

Step-by-step explanation:

sorry if im wrong

48 x 2 is the answer and you get 96

Hey I did my research still can't find an answer, please help

Answers

second answer, adjacent

4) A soccer team spent $216 on 15 new soccer balls. Each ball cost the same.​

Answers

Answer:

I'm gonna guess you're asking how much did they spend in that case the answer is 3,240

Step-by-step explanation:

The amount of money they spent is 3,240

What is a formula for the nth term of the given sequence?
180, -240,320...

Answers

Answer:

Tn=T1+(n-1)*d

Step-by-step explanation:

Tn is the nth term

T1 is the first term of the sequence

n is the nth term as well

d is the common difference

Simplify the expression. 7d + 3 - 2d

Answers

Answer:

5d+3

Step-by-step explanation:

just as you combine regular numbers you can combine terms that have the same variable raised to the same exponent, and 7d-2d=5d. So the equation simplifies to 5d+3

Step by step pls I’ll make u brainly

Answers

Answer:

a = 6

Step-by-step explanation:

120 = 3 + 3(7a - 3)   (by PEDMAS, expand parentheses first by distributive property)

120 = 3 + 7a(3) - 3(3)

120 = 3 + 21a - 9

120 = 21a - 6    (add 6 to both sides and rearrange)

21a = 120 + 6

21a = 126   (divide both sides by 21)

a = 126/21

a = 6

Step-by-step explanation:

120-(3+3*(7*a-3))=0

Step by step solution :

STEP

1

:

Equation at the end of step 1

120 - (3 + 3 • (7a - 3)) = 0

STEP

2

:

STEP

3

:

Pulling out like terms :

3.1 Pull out like factors :

126 - 21a = -21 • (a - 6)

Equation at the end of step

3

:

-21 • (a - 6) = 0

STEP

4

:

Equations which are never true:

4.1 Solve : -21 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

4.2 Solve : a-6 = 0

Add 6 to both sides of the equation :

a = 6

One solution was found :

a = 6

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