Jeff earns money mowing lawns. His earnings and hours worked represent a direct variation. He worked for 5 hours and earned $37.50. Determine the constant of proportionality for dollars earned per hours worked and for hours worked per dollars earned.

Answers

Answer 1

Answer:

Jeff earns $7.50 dollars per hour

Step-by-step explanation: Just divide $37.50 and 5.  


Related Questions

Given f(x) = 17- x?, what is the average rate of change in f(x) over the interval [1, 5]?
-6
-1/2
1/4
1

Answers

Answer: -6

Step-by-step explanation: I just took the test

Karissa is going water skiing. She
can purchase skis for $125 or she
can rent skis for $30 an hour. In
both cases she must rent a safety
flotation device to wear that is $5
per hour. Which inequality shows the
number of hours Karissa must ski
for the cost of buying skis to be less
than renting skis?
A 125 + 5x > 30x
B 125 + 5x < 35x
C 125 + 5x < 30x
D 125 + 5x > 35x

Answers

Answer:

A

Step-by-step explanation:

The sum of 4x^3 +2x-3 and 3x^2-5x-5 is

Answers

Answer:

4x³ + 3x² - 3x - 8

Step-by-step explanation:

Step 1: Write expression

(4x³ + 2x - 3) + (3x² - 5x - 5)

Step 2: Combine like terms

4x³ + 3x² - 3x - 8

Answer:

4x^3+3x^2-3x-8

Step-by-step explanation:

Use parentheses and combine like terms.

The bill at a restaurant came to $136.40.The customer decided to leave a 15% tip.What was the total bill including tip.

Answers

Answer:

$156.86

Step-by-step explanation:

To calculate tip, you need to multiply the total bill by the percent tip you are going to leave. In this case the bill is $136.40, and the customer is going to leave a 15% tip. So, you would want to move the decimal place over to the left by 1, which you should get 13.64 as your number. Then divide it in half, which should give you 6.82. Now add 13.64 and 6.82 with the original bill price. If you don't add the 13.64 you would've forgotten the 10% part of the tip. At the end you should get $156.86 as your final bill.

what is 3/2=9/10k im having troble lots rly

Answers

Answer:

k=  5 over 3  =1.667

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    (3)/(2)-((9)/(10)*k)=0

simplify 9/10

 3      9

 — -  (—— • k)  = 0  

 2     10

simplify 3/2

 3    9k

 — -  ——  = 0  

 2    10

   Find the Least Common Multiple

     The left denominator is :       2  

     The right denominator is :       10

Least Common Multiple:

     10

Calculate multipliers for the two fractions

   Denote the Least Common Multiple by  L.C.M  

   Denote the Left Multiplier by  Left_M  

   Denote the Right Multiplier by  Right_M  

   Denote the Left Deniminator by  L_Deno  

   Denote the Right Multiplier by  R_Deno  

  Left_M = L.C.M / L_Deno = 5

  Right_M = L.C.M / R_Deno = 1

Rewrite the two fractions into equivalent fractions

Two fractions are called equivalent if they have the same numeric value.

For example :  1/2   and  2/4  are equivalent,  y/(y+1)2   and  (y2+y)/(y+1)3  are equivalent as well.

To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.

  L. Mult. • L. Num.      3 • 5

  ——————————————————  =   —————

        L.C.M              10  

  R. Mult. • R. Num.      9k

  ——————————————————  =   ——

        L.C.M             10

Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3 • 5 - (9k)     15 - 9k

————————————  =  ———————

     10            10  

Pull out like factors :

  15 - 9k  =   -3 • (3k - 5)

-3 • (3k - 5)

 —————————————  = 0  

      10      

When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 -3•(3k-5)

 ————————— • 10 = 0 • 10

    10    

Now, on the left hand side, the  10  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  -3  •  (3k-5)  = 0

Solve :    -3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solve  :    3k-5 = 0  

Add  5  to both sides of the equation :  

                     3k = 5

Divide both sides of the equation by 3:

                    k = 5/3 = 1.667

one solution was found

k = 5/3 = 1.667

hope it helps sry its so long

Last year Essex Manufacturing paid $3500 for utilities. This year the company used energy-saving techniques to reduce the utility bills by 13% of last year's cost. What was the cost of utilities for Essex Manufacturing this year?

Answers

Answer:

$3045

Step-by-step explanation:

You need to find 13% of 3500, and subtract it from 3500.

13% of 3500 = 455

3500 - 455 = 3045

Help a gal out yal!

1.) Which of thr following equations is noy a linear equation?

A.) x-4y=-1
B.) x=2
C.) y=x-1/2
D.) x 2=5y

2.) Which of the following points lies on the graph of this equation?

2y=x+3

A.) (0,3)
B.) (2,5)
C.) (-1,2)
D.) (1,2)

3.) Fin the value of y that makes the equation 3y = x + 2 true, when x=1.

A.) 1
B.) 3
C.) 1/3
D.) 2​

Answers

1.) D, because the equation is not written in y=mx+b form.

2.) D, (1,2) i made a graph and checked myself!

3.) A. because if x = 1 you do 2+1 and get 3y=3 then divide on both sides and end up with y=1.

hope this was helpful!

evaluate 7m+ 3mn when m=8 and n=14?Answers:aA:84,B:196,C:392,D=168​

Answers

Answer:

c) 392

Step-by-step explanation:

x² – x² – 3x + 3
all rational zeros to a polynomial

Answers

Answer:

x = 1

Step-by-step explanation:

[tex] {x}^{2 } - {x}^{2} - 3x + 3 \\ - 3x + 3 \\ 3x = 3 \\ x = 1[/tex]

In a class of 30 students 60% said they walk to school.

A) estimate how many students in the class walk to school.

B) write a proportion that you could use to determine the number of students in the class who walk to school.

C) solve your proportion. Check that your answer is reasonable.

Answers

Answer:

a) 18

b) 18 : 12

c)3  : 4

Step-by-step explanation:

a) 30 × [tex]\frac {60}{100}[/tex]

= 18 students walk to school

b)             No. of students                                       No. of students

            who walk to school               :                 who walk to school

                        18                               :                                 12

c)

18 : 12

=18/6 : 12/3

=3  : 4

Given: K is between H and J, HK = 2x − 5, KJ = 3x + 4, and HJ = 24. What is the value of x?

Answers

Answer: x = 5

Step-by-step explanation:

Solve for S pls!!!

5s = 3s + 30

Answers

S = 15 should be the correct answer

Answer:

s= 15

Step-by-step explanation:

3 x 15 = 45

30 + 45 = 75

75 divided by s(15) =

5

this is how I got my answer

good luck and I hope this helps! :)

and can I get a brainliest? you don't have to, though

What is the property of 42x1=42

Answers

identity property of multiplication

If you simplified 10/15 as a fraction what would the answer be

Answers

Answer:

2/3

Step-by-step explanation:

10/15 can be divided by 5

PLEASE!!!

3. Determine whether the following table of values represents a linear, quadratic, or neither function. Show your calculations.

b) Explain how you know whether it is a linear, quadratic, or neither function.

Answers

Answer:

Quadratic function

Explanation:

It is not linear because the difference between y values is not constant.

([tex]10-5\neq 5-2[/tex] for example) In a linear function, the difference between y values would be constant.

Worth all my points plus Brainlist answer number 14 please it’s due in three hours

Answers

Answer:

Answer below

Step-by-step explanation:

2.08

2.082

2.8

2.82

√8 (it's 2.8284)

Answer:

let me know if im incorrect!

Step-by-step explanation:

2.082, 2.08, 2.8, 2.82, 8 squared (2.828)

what is 15 3/5 times 6

Answers

Answer: 93 3/5

Step-by-step explanation:

3/5 + 3/5 + 3/5 = 9/5

9/5 + 9/5 = 18/5 = 3 3/5

15 x 6 = 90

90 + 3 3/5 = 93 3/5

Let me know if this helped! :D

93 3/5 I used a calculator to double check my answer let me know if this helped

Explain why 10 x 2 is equivalent to 10 ÷ 1/2.

Answers

Answer:

in order to divide by a fraction, you need to multiply by its reciprocal instead, which would be 2 over 1 (2/1)

Step-by-step explanation:

in this case, 10 divided by 1/2 turns to 10 x 2/1

i tried my best, sorry if i couldnt help

freeZ Pointz!!!!!!!!!

Answers

thank you :) very much

Answer:

thankk youu

Step-by-step explanation:

Help......,...........

Answers

66 degrees

Thing you have to know for these types of problems: The total measure of all angles is 180 degrees.

With that in mind, if we add 83 and 31, we get 114 degrees.

Now subtract from 180 and you will get 66 degrees.

Hope this helps, Please mark branliest if it did

The number π is A. Rational B. Irrational

Answers

irrational. pi is an irrational number.

A master baker can fill a big order in 6 hours. A student baker can fill the same order in 8 hours. They start working together, and after 2 hours, the student leaves and the master baker finishes the work alone. How long will it take him to finish the order?

Answers

Answer:

It will take the master baker 2.86 hours to finish the remaining order after 2 hours.

Step-by-step explanation:

the time taken for the master baker to fill the order = 6 hours

the time taken for the student baker to fill the order = 8 hours

let the time taken for both to finish the work together if they work at the same rate = x

[tex]\frac{x}{8} + \frac{x}{6} =1\\\\\frac{3x + 4x}{24} = 1\\\\7x = 24\\\\x = \frac{24}{7}\\\\x = 3.43 \ hours[/tex]

After 2 hours, the remaining time for them to finish the work together is given by;

t(remaining) = 3.43 hours - 2 hours = 1.43 hours

Working at the same rate, 2 persons will take 1.43 hours to finish the remaining work.

One person will take hour many hours ?

2 persons working at the same rate  --------> 1.43 hours

1 person working at the same rate -----> ?

= 2 x 1.43 hours

= 2.86 hours

Therefore, it will take the master baker 2.86 hours to finish the remaining order after 2 hours.

Answer:

2 hours 30 minutes

Step-by-step explanation:

Three support beams for a bridge form a pair of complementary angles. Find the measure of each angle.
(2x - 20) (4x - 10)

Answers

(2x - 20) = 55
(4x - 10) = 25

Help ASAP I’m stuck

Answers

Answer:

5, 12, 6, 4, 6, 5

Step-by-step explanation:

The nearest square root to 28 is 25, which is 5.

The nearest square root to 135 is 121, which is 12.

The nearest square root to 38.7 is 36, which is 6.

The nearest cubic root to 51 is 64, which is 4.

The nearest cubic root to 200 is 216, which is 6.

The nearest cubic root to 95 is 125, which is 5.

Consider the equation and its solution.

8 (x minus 2) = 64. 8 x minus 16 = 64. 8 x = 80. x = 10.

Which property is used in the last step to find that x = 10?

Answers

Answer:

The answer is Division property of equality

Step-by-step explanation:

Answer:

division property of equality

Step-by-step explanation:

Just took the test on edge

How do I simplify (6x-10x^2+3)-(5x^2+3x-4) ???

Answers

Answer:

Step-by-step explanation:

6x-10x^2+3-(5x^2+3x-4)

when there is a - in front of an expression in (), change the sign of each term in the expression

6x-10x^2+3-5x^2-3x+4

now collect like terms

3x-10x^2+3-5x^2+4

3x-15x^2+3+4

3x-15x^2+7

now use the commutative property to reorder the terms

-15x^2+3x+7

=-15x^2+3x+7

where do you put a decimal on 64

Answers

it depends what the question is

Answer:

Whats the question tho

Step-by-step explanation:

One of the largest swimming pools in the world is in Garden City, Kansas. It is rectangular and
measures 67 meters by 100 meters. If you swim diagonally across the pool, how many meters would
you swim? Round your answer to the nearest whole meter

Answers

Answer:

The answer is 7,000 meters

Step-by-step explanation:

because you do 67*100 which equals to 6,700 and then u round it which makes it equal to 7,00 meter

Answer:

120 meters (approx)

Step-by-step explanation:

Think of the rectangle like two triangles;

if we find the hypotenuse of one, then we know the length of the rectangle across

Remember the Pythagorean theorem:

a^2 + b^2 = c^2

where a and b are the sides of the triangle

so then substitute in the known values:

a = 100

b = 67

now solve

100^2 + 67^2 = c^2

14489 = c^2

sqrt(14489) = c

120.37 = approx c

What is the slope of the line that passes through the points (-9, 5)and (-17, 5) ? Write your answer in simplest form.

Answers

Answer:

0

Step-by-step explanation:

[tex]\frac{y2-y1}{x2-x1}[/tex]

[tex]\frac{5-5}{-17-(-9)}=\frac{0}{-8} =0[/tex]

slope=0

Please help me with this

Answers

Answer:

D

Step-by-step explanation:

Answer is D

Explanation: Let’s take the x of 4 and y of 10 for example. Now let’s plug in with D
y=2x+2
10=2*4+2
10=8+2
10=10
To check you can try again with the other given numbers!!
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