Ernie earned $121.50 more than Kaylin. Tria earned $35 less than 3 times the amount Kaylin earned. Ernie, Tria, and Kaylin earned $579 in all. How much did Tria earn?
$98.50
$220.00
$260.50
$330.50

Answers

Answer 1

x - Ernie, y - Kaylin, z - Tria

x = y + 121.50

z = 3y - 35

x + y + z = 579

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

z = 3 y - 35      =>   - 3 y + z = -35

y + 121.50 + y + z = 579

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

- 3 y + z = - 35        / · ( -1 )

 2 y + z = 457.50     (we will use the elimination method) 

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

3 y - z = 35

2 y + z = 457.50

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

5 y = 492.5,            y = 492.5 : 5 = 98.5

z = 3 · 98.5 - 35

z = 260.5

Tria earned $260.5 

Answer 2
C)260.50
Step by step explanation
Let "x" be the amount earned by Ernie
Let "y" be the amount earned by Kaylin
Let "z” be the amount earned by Tria

Now let’s form the equations

x=y + 121.50 (1)

z=3y- 35 (2)

x + y + 2= 579 (3)

Now plug in x = y + 121.50, in the third equation.

y + 121.50 + y + z =579

2y + z = 457.50

From the second equation 3y - z = 35

2y + z =457.50

3y - z = 35

5y = 492.5

Dividing both sides by 5 we get

y = 98.50

Now let’s find how much Tria earned.

z = 3*98.5 - 35

z = $260.50

Related Questions

The following triangles are congruent (Equal) according to :
A) AAS
B)SAS
C)SSS
D)ASA

Answers

D is the answer according to the picture of my knowledge
I belive i have done this before on accident but got it right im pretty sure it was D

Rational numbers are

Terminating Repeating decimal.
Repeating decimal.
non-terminating decimal.
non-repeating decimal.
HELPPPP

Answers

Answer:

terminating repeating decomal

Step-by-step explanation:

Answer: terminating repeating decimal

Step-by-step explanation: In the subject of Mathematics, we usually classify numbers in several types: whole numbers, rational numbers, natural numbers, and real numbers. We also include decimals in these types. Decimals are used by us to convey a whole number and a fraction together. We do this by separating a whole number from the adjoining fraction by inserting “.” between them. This symbol is called a decimal point. In other words, decimals are just another way of representing fractions.

(2p - 3r)^2=
Will mark as brainliest
Solve with working
P=6
R=2

Answers

Answer:

36

Step-by-step explanation:

(2p-3r)^2

(2•6-3•2)^2

(12-6)^2

(6)^2

36

Adiosss

There are seven colors of the rainbow. How many different ways are there to choose a group of three colors?

Answers

Answer: 35 ways

.......................................

what operation is this

18 + 3 x 6 / 2

Answers

The operation is multiplication.
Homework:What operation is this : 18 + 3 × 6 ÷ 2

Explanation:

18 + 3 × 6 ÷ 2

First let's solve the multiplication

18 + 18 ÷ 2

Following the division

18 + 9

Add

[tex]\boxed{27}[/tex]            ← Result

Att: MusicSubtitulados

Determine whether the ratios are proportional.
10/12 , 15/18

Answers

Answer:

yes, these ratios are proportional.

Step-by-step explanation:

yes they are! proportional ratios are like equivalent fractions.

10/12 is equal to 5/6

15/18 is also equal to 5/6

Billy's Boat Rental Company charges a yearly fee of $105 and $9.50 each time a member wants to rent a boat. Lisa's Boat Rental Company does not charge a yearly fee, but charges $14.75 every time a member rents a boat. How many times does a person have to rent a boat for the cost to be the same amount at both rental companies?

Answers

Step-by-step explanation:

we can proceed to model the cost of Billy's Boat Rental Company

let y be the cost

let x be the number of rentals

y=105+9.5x----1

Also, the cost of Billy's Boat Rental Company

y=14.75------2

the question is "How many times does a person have to rent a boat for the cost to be the same amount at both rental companies"

we have to equate the two cost and solve for x

105+9.5x=14.75

105-14.75+9.5x=0

90.25+9.5x=0

9.5x=-90.25

divide both sides by 9.5 we have

x=-90.25/9.5

x=9.5

Approximately 10 times

Write the equation of a line that is perpendicular to y = 5 and that passes through the point (-7,-5).

Answers

Answer:  x = -7

Step-by-step explanation:

x = -7 will be a vertical line passing through all y values, and perpendicular to y = 5

The attached graph shows the lines and the point.

what is the inverse of the function h(x)= -3/8x+12?

Answers

Answer:

x+3-12/8

Step-by-step explanation:

h(x)=-3/8x+12

y=h(x) let

y=-3/8x+12

here,

put at x at y and put y at x

x=-3/8y+12

8y=x+3-12

y=x+3-12/8

Please help me. I don’t know which phone contract is better.


I am going to change my phone contract. The monthly contract I am considering costs $30 per month with 75 minutes of free calls and 100 free text messages. Additional calls cost 10¢ per minute and additional text messages 10¢ each. An alternative is ‘Pay as you go’ which has no monthly charge but all calls cost 30¢ per minute and texts cost 10¢ each. I typically make 100 minutes of calls and 60 text messages each month. Which would be the better contract for me and by how much?

Answers

Answer:

the monthly contract seems pretty good

Step-by-step explanation:

why pay 30 cent or 10 cent per min when you can just pay monthly cause eventually you going to be paying the same amount . hope this helpsssssss. brainliest:)

2x^2+8−3=0 Complete the square

Answers

Answer:

- 5/4 or - 1 1/4

Step-by-step explanation:

Step 1:

2x² + 8 - 3 = 0      Equation

Step 2:

4x + 8 - 3 = 0      Exponents

Step 3:

4x + 5 = 0      Combine Like Terms

Step 4:

4x = - 5     Subtract 5 on both sides

Step 5:

x = - 5 ÷ 4    Divide

Answer:

x = - 5/4 or - 1 1/4

Hope This Helps :)

2(x+3)=x-4
Anyone know the answer please lol

Answers

Answer:

The Answer is -10.

mark this answer as BRAINLIEST answer. And I hoped this helpful for you....

Thank you ☺️☺️

Lets solve your equation step-by-step

2(x+3)=x-4

Step 1 :Simplify both sides of the equation

2(x+3)=x-4

(2)(x)+(2)(3) =x+-4 (distribute)

2x+6=x+-4

2x+6=x-4

Step 2: Subtract x from both sides

2x+6-x=x-4-x

x+6=-4

Step 3: Subtract 6 from both sides

x+6-6=-4-6

Answer: x=-10

PLEASE MARK ME AS BRAINLIEST !!

Which expression has a value of -5?
A
15 = 3
B
-25-5
100 = -20
-20 = 5

Answers

-20=5 trust audhebsjsbsb
D: -20 = 5

i hope I helped ya!

simplify: 3x+16-(-4x)+7

Answers

Answer:

7x+23 would be the answer

4x+7(3x-3)=9-5x show work please

Answers

Answer:

x = 1

Step-by-step explanation:

4x+7(3x-3) = 9-5x (equation)

4x+21x-21 = 9-5x (simplify)

25x-21 = 9-5x (combine like terms)

30x-21 = 9 (add 5x to each side)

30x = 30 (add 21 to each side)

x = 1 (divide each side by 30)

HELPPP MY HW IS DUE IN 5 MINUTES. WHATS 2 PLUS 2. PLZZZ ANSWER QUICKKKK

Answers

Answer: 4

Step-by-step explanation: 2+2 is 4

What is the answer? If the base of the pyramid is 18 inches squared and the height is 4 inches. What is the volume?

Answers

Answer:

V = 432 inches^3

Step-by-step explanation:

V = 1/3 (18)^2 (4)

V = 1/3 (1296)

V = 1296/3

V = 432

Help please!!!!!!!!!!

Answers

Answer:

The answer is x=18, I believe.

I need help with angles

Answers

Answer:

The value of x is 8

The measure of angle A is 42 degrees

A and B are consecutive interior angles

Step-by-step explanation:

Since A and B are consecutive interior angles you combine both equations and have it equal to 180

16x+10+5x+2=180

21x+12=180

21x=168

x=8

Plug 8 into the equation across from A

16(8) +10

128+10

138 degrees

Since angle A is supplementary you do 180-138= 42 degrees

A gym membership costs $110 to open and $30 per month after
1. What is the dependent and independent variable
2. Explain how you know the variables are independent or dependent
3. Is the relationship linear or non linear? Explain your reason
4. Do you think that given enough information you could create a table,graph, and an equation for the function? Why or why not
5. What information would you need to make your table/graph/equation?

Answers

Answer:

1) The dependent variable is the monthly charge and the independent variable is the $110 to open the membership.

2)The dependent variable is the monthly charge because it will change depending on how many months you plan to keep your membership.

3)This relationship is linear because it will go up by $30 every month.

4)You could create a graph off of this information because all you would need to do is graph the cost each month.

5)I would need the number of month that I would keep the membership going and the amount that i have already paid.

Solve the problem please

Answers

Answer:

The correct answer would be 3x/5y

Step-by-step explanation:

You are substracting, and the denominator is the same for both 5x/5y and 2x/5y, so it will remain the same (5y). This only leaves you needing to substract 5x-2x, which equals 3.

5x/5y-2x/5y= 3x/5y

Simplifying Difference of Rational Expressions

Step-by-step explanation:

[tex]\frac{5x}{5y}-\frac{2x}{5y}\\ \frac{5x -2x}{5y}\\ \frac{(5-2)x}{5y} \\ \frac{3x}{5y}[/tex]

Answer:

[tex]\frac{3x}{5y} \\[/tex]

Which statement correctly compares the function shown on this graph with
the function y = 2x - 5?

A. The function shown on the graph has a smaller rate of change and lower starting point.

B. The function shown on the graph has a smaller rate of change, but a higher starting point.

C. The function shown on the graph has a greater rate of change and a higher starting point.

D. The function shown on the graph has a greater rate of change, but a lower starting point.

Answers

It’s c because I just got finishes taking the test

The correct option is Option C: The function shown on the graph has a greater rate of change and a higher starting point.

What is the rate of change of function?

The rate of change of function is the change in the value of the function with respect to x value.

rate of change of function f(x)= df(x)/dx= f'(x)

Here the function given in the question is y=2x-5

rate of change of function= f'(x)= df(x)/dx= dy/dx= d(2x-5)/dx= 2

the starting point of the function f is y-intercept of the function.

the y-intercept of the function is the point where the function touches the y-axis which can be calculated by putting x value is equals to 0.

y= 2x-5

⇒y= 2*0-5

⇒y= -5

The starting point of function is -5.

Given the graph has slope = |y-intercept| / |x intercept|

= 4/1 =4

rate of change of graph = slope of graph= 4

similarly, the y-intercept of the function is the point where the function touches the y-axis which can be calculated by putting x value is equals to 0.

The y-intercept of the graph= the starting point of the graph= -5

Therefore the function in the graph has a higher rate of change as well as a higher starting point.

From the above, it is clear that the correct option is Option C: The function shown on the graph has a greater rate of change and a higher starting point.

Learn more about the rate of change of function

here: https://brainly.com/question/3939432

#SPJ2

0.5/10 5/100 are these ratios equal?

Answers

Answer:

No

Step-by-step explanation:

5/100 would be 0.05 as a decimal

Grace is playing a game with her friends. Each player gets
5 pieces. In all, there are 45 pieces on the game board.
Which number sentence can be used to find the number
of people playing the game?
A
45-5=
B
45-5=
c
45x5
D
45+5=

Answers

B: 45/5
45 divided by 5.
Hope this helps!

2x - 1y = 6
-3y = -6x + 18

please explain how you got the answer, thank you :)

Answers

Answer: {y,x}={2,8}

// Solve equation [2] for the variable  y

 [2]    y = -2x + 18

// Plug this in for variable  y  in equation [1]

  [1]    (-2x+18) - x = -6

  [1]     - 3x = -24

// Solve equation [1] for the variable  x

  [1]    3x = 24

  [1]    x = 8

// By now we know this much :

   y = -2x+18

   x = 8

// Use the  x  value to solve for  y

   y = -2(8)+18 = 2

Solution :

{y,x} = {2,8}

Solve the inequality.
6 ≤ -2x + 2

Answers

Answer:

x ≤ 2

Step-by-step explanation:

6−2 ≤ −2x

4 ≤ −2x

x ≤ 2

4 ( g + 5 ) + 2 ( g + 3 )

Answers

Answer:

[tex]g = - \frac{13}{3} [/tex]

Step-by-step explanation:

4g+20+2g+6=0

6g=-26

[tex]g = - \frac{26}{6} [/tex]

[tex]g = - \frac{13}{3} [/tex]

you have to simplify the expression so i think the answer is 6g + 26

hope this helps :)

Please help me I really need it..

Answers

Answer:

[tex]\frac{1}{8^{2} }[/tex]

Step-by-step explanation:

Solve for m.
m
15.02 = + 19.16
-4
m
Submit

Answers

Answer:

The answer is No.

Step-by-step explanation:

Due to 19.16 - 4 equaling 15.16, it isn't correct. 15.16 doesn't equal 15.02.

If I missed part of the question let me know, the question seems incomplete.

Please Help Me with this, I need to get finished

The area of a circle will _____ be larger than the area of a polygon circumscribed about the circle.

always
often
sometimes
never


The area of a regular hexagon inscribed in a circle with radius 2 is what. Round your answer to the nearest tenth.

Answers

Answer:

often

Step-by-step explanation:

YOU SEE i have depression

it feels like it wouldn't be long until something happens

ALSO, I FEEL DEAD INSIDE!!!!!:(sometimes I start to twitch and my face turns completely white depression+anxity don't mix well

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