In the morning, Marco sold 12 cups of lemonade for $3. By the end of the day, he had earned $9. How many cups of lemonade did he sell in all?

Kaycee wrote the proportion StartFraction 12 over 3 EndFraction = StartFraction 9 over c EndFraction for this situation. Identify the error and give two ways to write the proportion correctly.

Answers

Answer 1

Answer:

Marco earned $2.25.

Step-by-step explanation:

1. If Marco sold 12 cups of lemonade for 3$, we would divide 12 cups and how much he earned from the 12 cups (3$). 12/3 = 4

2. By the end of the day, Marco earned $9. So, 4 cups = 1$. To break it down, 1$ = 100 cents and 100 cents divided by 4 is 25 cents.  Cups to Cost. ( 4 : 1 ) and/or ( 1 : 0.25 )

3. 8 cups = 2$ plus 1 cup (0.25) = 2.25.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Answer 2

Answer:

Kaycee did not keep lemonade and dollars in corresponding positions in the ratios of the proportion. The proportion should be 12/3=c/9 or it could be written 3/12=9/c. Dollars should be in the same position and cups should be in the same position across ratios.

Step-by-step explanation:

This was the example answer

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Related Questions

If f(x)=2x and g(x) = x+5 then (fg)(x)=

Answers

(fg)(x)= 2x^2+10x

Step-by-Step-Explanation:
(fg)(x)=(f(x))(g(x))
(fg)(x)=(2x)(x+5)
(fg)(x)=2x^2+10x

What is the answer? I don’t get it

Answers

I think it’s B for sure!!!

During his first three months with the Houston Astros, Yordan Álvarez's batting average was represented by three hundred seventeen thousandths.

What is the value of the digit in the hundredths place written using numerals and expanded notation?
0.3 and (3 x110)
100 and (1 x 100)
0.01 and (1 x1100)
0.007 and (7 x11000)

Answers

Answer:

The correct option is;

0.01 and (1 × 1/100)

Step-by-step explanation:

The given parameters includes;

The batting average of Yordan Alvarez's = 0.317

Therefore, we have;

The digit in the hundredths place = 0.01

The expanded notation for the value of the hundredth place is given by the product of the digit and the place value digit as follows;

The expanded notation = 1 × 1/100.

TRUE or FALSE: Darrell writes 15 text messages in 5 minutes. That is the same rate as 30 text messages in 15 minutes.
True

False

Answers

Answer:

false false false

Step-by-step explanation:

hope this helps :]

Which angle in ABC has the largest measure?

Answers

Answer:

Angle B

Step-by-step explanation:

Angle B because the measure of angle B is 12 . Angle A has a measure of 7 and angle C has a meausre of 10 which both measures of the angles are less than angle B. Think of it like this... 17  people (7+10) went to a Bakery. There were only 7 cupcakes and 10 sweet potato pies. To start with there were 35 cupcakes and 35 sweet potato pies.  7 people ordered cupcakes and 10 people ordered sweet potato pie. There were 18 left of the 2 deserts. 18 is greater than 7 and 10. That´s why angle B  is the angle that has the largest measure. 12 is greater than 7 and 10. If there were only 7 milkshakes left and 10 people wanted a milkshake, only 7 people would be able to get a milkshake. 3 people wouldn´t be able to get a milkshake

So angle B is the correct answer.

Answer: angle b

Step-by-step explanation:

HELP NEEDED TIMED i need help figuring out how to do this

Answers

Answer:

The answer is 3/4

99

4

Step-by-step explanation:

yard
1
Rachel is making a bracelet and a necklace for her friend. She needs
3
5
of wire to make a bracelet and yard of wire to make a necklace. She
6
estimates that she will need about yards of wire.
9
Which best explains her estimate?

Answers

Oufoydoydoskdktdotdodtotdclhclhcclhhc

Use the quadratic formula to find the solutions to the equation.
3x2 - 10x + 5 = 0

Answers

Answer: A

Step-by-step explanation:

3x² - 10x + 5 = 0

a = 3      b = -10     c = 5

Δ = b²- 4ac = 100 - 4.3.5 = 40 > 0 => have 2 solutions

=> x = [tex]\frac{10+\sqrt{40} }{6}[/tex] or x = [tex]\frac{10-\sqrt{40} }{6}[/tex]

[tex]x= \frac{10\pm \sqrt{40} }{6}[/tex] is the solution to the given quadratic equation.

What is quadratic equation?

Quadratic equations are the polynomial equations of degree 2 in one variable of type f(x) = [tex]ax^{2} +bx+c[/tex] = 0 where a, b, c, ∈ R and a ≠ 0. It is the general form of a quadratic equation where 'a' is called the leading coefficient and 'c' is called the absolute term of f (x).

Quadratic formula = [tex]\frac{-b\pm \sqrt{b^{2} -4ac} }{2a}[/tex]

Given quadratic equation

[tex]3x^{2} -10x+5=0[/tex]

a = 3, b = -10, c = 5

Quadratic formula = [tex]\frac{-b\pm \sqrt{b^{2} -4ac} }{2a}[/tex]

[tex]x= \frac{-(-10)\pm \sqrt{(-10)^{2} -4(3)(5)} }{2\times3}[/tex]

⇒ [tex]x= \frac{10\pm \sqrt{100 -60} }{6}[/tex]

⇒ [tex]x= \frac{10\pm \sqrt{40} }{6}[/tex]

Hence,  [tex]x= \frac{10\pm \sqrt{40} }{6}[/tex] is the solution to the given quadratic equation.

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A square table has a perimeter of 16 feet.
Which of these is the length of a side of
the table?

Answers

Answer:

4

Step-by-step explanation:

16/4=4 (16 is the perimeter divided by the 4 equal sides since it is a square)

Lin gets paid 18 dollars every 1 hour at this rate, how much would Lin be paid for 3 hours of work? For 2.1 hours of work HELP ME FREE BRAINLYEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!^_^

Answers

Answer: For three hours of work, she'll get paid $54. For 2.1 hours of work she'll get paid $37.8

Hope this helps you.

Answer:

$54, $37.8

Step-by-step explanation:

3 hrs=$54, 2.1 hrs=$37.8

can i have brainlyest please

If 3g - 11 + 3y, what is the value of y when g is 12?

Answers

Answer:

25 + 3y

Step-by-step explanation:

3g - 11 + 3y when g = 12

~Substitute

3(12) - 11 + 3y

~Simplify

36 - 11 + 3y

~Combine like terms

25 + 3y

Best of Luck!

Answer:

y=25

Step-by-step explanation:

I think this may be the answer but I'm not sure.

Q1. Mara is building a wind chime. She needs string in the following lengths: 6 pieces
of 20 cm, 3 pieces of 30 cm, and 1 piece of 40 cm. How much string does she need?

Answers

Mara needs 250 cm of sting
Kdkdlclhckdmxkckgcgkckgxlglg

You sold a total of 56 student and adult tickets for a total of $328. Student tickets cost $5 and adult tickets cost $8. How many student tickets were sold?

Answers

Answer:

The number of student ticket sold is 40

Step-by-step explanation:

Given;

total number of tickets sold,= 56 tickets

total amount the tickets were sold, = $328.

cost of student tickets, = $5

cost of adult ticket,  = $8

Let the number of student ticket sold = x

Let the number of adult ticket sold = y

To determine the number of student tickets sold, we will have the following equations;

x + y = 56 ------ equation (1)

5x + 8y = 328 -----equation (2)

from equation (1), y = 56 - x

Substitute the value of y in equation (2);

5x + 8y = 328

5x + 8(56 - x) = 328

5x + 448 - 8x = 328

5x - 8x = 328 - 448

- 3x = - 120

x = 120 / 3

x = 40

Therefore, the number of student ticket sold is 40

Find the 91st term of the arithmetic sequence 5,−14,−33,...

Answers

Answer:

-54

Step-by-step explanation:

Answer:

Let's simplify

91st(5)−14−33

Step-by-step explanation:

step-by-step

=455st−47.

I hope my answer helped


What is the 8th term of the sequence given by an = 3n-5?

Answers

Answer:

a10 = 25

Step-by-step explanation:

I'm not certain that I have interpreted the question in the way it was intended; however, if I have:

a 10  =  3 (10 )  −  5  =  

30  −  5  =  25

A can of drink costs 32p. The cost of the drink has increased to 38p.
Jenny calculates that this is a percentage increase of 19%
Is Jenny's percentage correct?
PLZ SHOW WORKING OUT

Answers

Answer:

Jenny's percentage isn't correct

Step-by-step explanation:

You'd have to divide first:

38 / 32 = 1.1875 = (rounded) 1.19%

The percentage increase is 1.19%

Answer:

the percentage is 100 because you add 32 and 38 and equals 100 if you were to subtract you would have got 6%

what is the sell tax of 8.00 dollars

Answers

Answer:

A tax of 7.5 percent was added to the product to make it equal to 8.6. So, divide 7.5 by 100 to get 0.075. Divide the final amount by the value above to find the original amount before the tax was added. In this example: 8.6 / 1.075 = 8.

Step-by-step explanation:

Not sure if this will help but yea and this from google

Solve the rational equation quantity 3 times x minus 5 end quantity divided by 7 equals four sevenths. A: f(n) = f(n − 1) ⋅ 0.3 + 25, n > 0 B: f(n) = 100 − f(n − 1) ⋅ 0.3 + 25, n > 0 C: f(n) = f(n − 1) ⋅ 0.7 + 25, n > 0 D:f(n) = 100 − f(n − 1) ⋅ 0.7 + 25, n > 0

Answers

Answer:

2.8 < x -0

Step-by-step explanation:

if n = 4, the value of the expression
[tex]28 - 12 \sqrt{n \div 2} [/tex]


Answers

Answer:

pretty sure it's 17

Step-by-step explanation: just did it

The value of the expression is 11.032

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

28 - 12 √(n ÷ 2)

Sustitute n = 4

= 28 - 12 √(4 ÷ 2)

= 28 - 12√2

= 28 - 12 x 1.414

= 28 - 16.968
= 11.032

Thus,

The value is 11.032

Learn more about expressions here:

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Hellpp!!! will award brainliest for the first correct answer

Answers

Answer:

a) (-2,-1)

b) (-3,0) (-1,0)

Step-by-step explanation:

It tells you on the graph

Answer:

a) I think the turning point is max or min correct? If so, the min of the function is (-2, -1) AKA the vertex

b) I also think the roots are just another way to say the x-intercepts so in that case, the roots are (-1, 0) and (-3, 0)

Step-by-step explanation:

I hope that helps!


Evelyn is buying a motorcycle that costs $14,000. The tax rate is 6.75%, and she plans to make a down payment of $1,500. The sales tax is
added before the down payment is applied. She is considering a three-year loan

Answers

Answer:

449.10

Step-by-step explanation:

Her monthly payment, if she is considering a three-year loan is $373.47

Given the cost of the motorcycle to be $14000

If the tax rate is 6.75%, the total cost plus tax is expressed as:

Final cost = 14000+(0.0675 * 14000)

Cost of motorcycle = 14000 + 945

Cost of motorcycle = $14945

If she plans to make a down payment of $1,500 before the sales tax is applied, then;

Balance = 14945 - 1500

Balance = $13,445

If she considers  a three-year loan, her monthly payment will be ;

Monthly payment = 13,445/36

Monthly payment = $373.47

Hence her monthly payment if she is considering a three-year loan is $373.47

Learn more here: https://brainly.com/question/25398965

At the rate shown in the table, how many weeks did it take to sell 700 books? [Type your answer as a number.]

Answers

Answer:

3

Step-by-step explanation:

Answer:

10 weeks

I hope this help you

8/15÷4/5 Help Anyone

Answers

Answer:2/3

Step-by-step explanation:

answer me plsssssssssssssssssssssssssssssssss brainlyest

Answers

The answer is C trust me

Answer: I will say it’s C because if you decide 8 by both sides 8 and cancel out 204.8/8=25.6, so it gives the answer of m=25.6.

-by-step explanation:

Derek has $20 to spend on used books. Hard cover books cost $5 each and paperbacks cost $2 each. Complete the equation which determines the number x of hardcover books and the number y of paperback books he can buy. What are the possible combinations of books that Derek can buy? Select all that apply.


A. (-2,15)
B. (0,10)
C. ( 2,5)
D. (3,5/2)

Answers

Answer:

c i think

Step-by-step explanation:

You and a friend ordered fajitas for two, and agreed to split the bill. The bill came to $19.06. You decided to give a 15 % tip. How much did you pay?

Answers

$2.86 if you’re tipping off of $19.06 but if you’re tipping off half of that so the split bill which is $9.53 then your tip is $1.43

WILL GIVE LOTS OF EXTRA POINTS PLEASE HELP ME ASAP! MORE THAN ONE PERSON CAN ANSWER I WILL GIVE BOTH OF YOU EXTRA POINTS!!

Answers

Answer:

(x+4, y+1)

Step-by-step explanation:

I couldn't see the options below but this is the right one

Plz name me brainliest Thank You

Answer:

(x+4, y-1)

Step-by-step explanation:

Makes the most sense-

The y value goes down one, which makes it negative and if u go along the x line it goes over 4 and sense it goes to the right, it would be positive.


What is the value of x in the right triangle?

90
26
10
37
O 127
O 90
O 53

Answers

i assume it is 90 but if their is a picture it would be easier to understand

Is -0.003 irrational or rational

Answers

Answer: irrational

Explanation:

Answer:

rational it can be written as a fraction

I hope this is good enough:

Solve 4a= 12 jvyctxychvuvu

Answers

Answer:

The answer is a = 3

Step-by-step explanation:

Because 4 * a = 12 you can also reverse it and make it 12 / 4 = a, and 12 / 4 = 3, so that is your answer.

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