Mathematics Middle School

The owner of a lemonade stand mixes juice that costs 2 dollars per gallon with juice that costs 7 dollars per gallon. She gets 20 gallons of punch that costs 4 dollars per gallon. How much of each juice does she use?

Answers

Answer 1

Answer:

8 gallons at $7

12 gallons at $2

Step-by-step explanation:

x gallons at $7 with the remaining (20 - x) gallons at $2 to get 20 gallons at $4

x(7) + (20 - x)(2) = 20(4)

Distribute

7x + 40 - 2x = 80

Combine like terms

5x + 40 = 80

Subtract 40 from both sides

5x = 40

Divide both sides by 5

x = 8 gallons at $7

20 - x = 12 gallons at $2

Related Questions

Convert 45 dollars earned in 3 hours to a unit rate. Write your answer using the $ sign and the word "per".

Answers

45$ divided by 3 which is 15 so per hour you make 15$ an hour.
Answer = $15 per hour

Explanation:
$45/ 3 = $15
So, the unit rate is 15

Select the locations on the number line to plot the points 8/3 and −11/3.

Answers

Answer:

Step-by-step explanation:

8/3 is between 2 and 3 above 2.5

11.3 is between 3 and 4 above 3.5

8/3 converts to the decimal 2.666666... which means its located on the number line between 2 and 3 above 2.5.
11/3 converts to 3.6666.... which means its located on the number line between 3 and 4 above 3.5.

Sapatra spent $80 at Mr. and Mrs. Crab. She left a tip of 20%. How much was the tip she left?

Answers

$80 x 20%=16% if we’re talking actual money bills it would be 9.6 US dollars there u go girlly hope it helped don’t know if I’m correct tho<33

Answer:

$16

Step-by-step explanation:

So Sapatra spent $80 at Mr. and Mrs. Crab and She left a tip of 20%. We can convert  20% into a decimal, that would be .2 when you move your decimal from the left 2 times and multiply 80 by .2. meaning her tip she left is $16

2x+12=18-x
a-x=3
b-x=10
c-x=6
d-x=2

Answers

Answer:

3

Step-by-step explanation:

44rr

The answer is d x =2

Which comparisons are true? Select all that apply.

A.
7
.
34
>
7
.
304
B.
1
.
628
>
1
.
63
C.
4
.
05
<
4
.
055
D.
9
.
103
<
9
.
13
E.
2
.
29
<
2
.
129

Answers

Answer: i got D make sure you double check on ur end

Step-by-step explanation:

Organize everything and I’ll help you

25 points and brainliest if it's correct!

Answers

Answer:

Just substitute each number into the expression:

5(5) - 6(3) + 20(1/4)/4(3)(1/4) = 25 - 18 + 5/3 = 7 + 5/3 = 26/3 or 8 and 2/3.

Step-by-step explanation:

26/3 or 8 and 2/3 is the correct answer

David wants to purchase some pens. The pens he likes cost $2 each, not including tax. This is represented by the graph below.

Write an equation for the graph of the line.

Answers

Answer:

Step-by-step explanation:

Y = 2x is it I’m pretty sure

Miguel takes $50 to the mall. He buys a flannel shirt for $18.99 and a hat for $12.49. On his way home, he stops at the bank and withdraws $25.

How much money does Miguel have now?

Answers

He will have $43.52

this problem can be shown like this:

50-18.99-12.49+25=43.52

hope that helped!
The answer is $43.52

Evaluate.

(2a−13)÷ b/15 when a=−4/5 and b=−2.25

Enter your answer as a simplified mixed number in the box.

Answers

Answer:

Step-by-step explanation:

10.66666666666667

Spanish please help I’ll give BRAINLY please fill in the ones that are not filled in

Answers

Answer:

What???

Step-by-step explanation:

3x + 2 = 32
What is x?

Answers

Answer:

x = 10

Step-by-step explanation:

3x + 2 = 32

=> 3x = 30

=> x = 10

Hoped this helped.

The festival prices for each dessert are shown in the banner.
At the end of the festival, there are 24 cannolis, 30 cream puffs, and 62 muffins leftover. How much money did the bakery collect from selling desserts? How much more would the bakery have collected if they sold all of the dessert?

Answers

Answer: how much money are the desserts each

Step-by-step explanation:

We need the prices to know

Pluto is no longer considered a planet because of its flattened shape?

true or false

Answers

false it’s not no longer considered a planet because of its flattened it because it’s size

Alex had 12 gumball machines. Each had about 47 gumballs.



Using compatible numbers, what is the best estimate for the number of gumballs Alex had?

Alex had about ______ Gumballs

DO I do Multiplication or whattt

Answers

Answer:

The answer would be 600 gumballs.

Step-by-step explanation:

The first step that you would do to solve this problem is multiply 12 by 47, which would give you 564.

The second step that you would do is round it. 564 rounded to the hundredths place is 600.

Therefore, your answer is 600.

Answer: 500

Step-by-step explanation:

its 500 round 47 u get 50 then round 12 u get 10 50 . 10=500

IM GIVING THE BRAINLY OUT NOW THANK YOU FOR THE 100% ON THE QUIZ!

Answers

Answer:

I wasn't here but np

Step-by-step explanation:

.....

Identify which equations have one solution, infinitely many solutions, or no solution.

Answers

Here ya go, I did the activity

Answer:

Olananio

Step-by-step explanation:

What is the slope of the line y=35x+7 ?

Answers

Answer:

Slope is 35

Step-by-step explanation:

Answer: slope is 35

 y-intercept: (0,7)

Step-by-step explanation:

2(4v-3)=2(5v-3)-2v
Help explain it to me please.

Answers

Answer:

All Real Numbers

Step-by-step explanation:

First, use the distributive property to expand everything:

8v-6=10v-6-2v

Then, combine like terms:

8v-6=8v-6

Then, subtract 8v from both sides to isolate the variable:

0-6=-6

-6=-6

Any real number you substitute with v will make the equation always true, as -6 always is equal to -6. Therefore, the answer is All Real Numbers.

Alll that equals -6 hope this helps

Simplify the expression.

2(a-3)=

Answers

Answer:

2a - 6 =

Step-by-step explanation:

yeah-ya........ right?

(ik someone answered with the same answer but heres a more detailed answer)

2(a-3) =
To simplify distribute;
2xa - 3x2 =

Answer: 2a-6

In a video game, a guppy that escapes a net turns into three goldfish. Each goldfish can turn into two betta fish. Each betta fish can turn into two angelfish. Enter and evaluate an expression for the number of angelfish that can be formed from one guppy.


What is an expression?


Setup _=_

Answers

Red

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

Answer:

2 angelfish

Step-by-step explanation:

2 angelfish equals 1 guppy

How and why? Pls help and tell me why so I know in future! Thank you!

Answers

Answer:b

Step-by-step explanation:

The easiest way to find out is get a calculator and multiply the number (25) times the percent of battery used (6.45%) and press equals. This will give you the number 1.6125

ill give you braindeath if you get this right

Answers

Answer:

The larger angle is 144 degrees and the smaller angle is 36 degrees

Step-by-step explanation:

Because this is a  supplementary angle you have to find out what x is to solve  this equation [tex]2.4x+9.6x=180[/tex]

Because 2.4x and 9.6x are like terms we add them [tex]2.4x+9.6x=12x[/tex]

So now to find x we divide 180 by 12 to get 15  [tex]\frac{12x}{12} =\frac{180}{12}[/tex]

We replace the x with 15 [tex]2.4(15)+9.6(15)=36+144[/tex]

We add 36 and 144 which equals 180

person above is very much correct have a great day

3. A rectangular block of stone has
a length of 9 cm, a width of 3 cm,
and a height of 5.5 cm. What is the
surface area of the stone?

Answers

Answer:27cm

Step-by-step explanation:9 times 3 =27

Answer:

35

Step-by-step explanation:

9*2+3*2+5.5*2=18+6+11=35

35 is the answer

I will giver brainliest to the person with the most detailed answer. That means tell me how you got ur answer. And the person who answers with the most clear explanation as well. Good luck!! This is due in 8 minutes as well. And pls number ur answers in order so it is clear!!

Answers

Answer:

(12,13)

Step-by-step explanation:i just guessed

11: the y axis is the vertical line. the red line crosses the y axis at -3 which means that you’ve found your y-intercept for the red line. the blue line crosses the y axis at 1 and for the slope it’s rise/run so if it’s going down it’s a negative

Using subsitution, which value of x makes this equation true? x+1/6=1

x=13


x=23


x=56


x=76

Answers

Answer:

5/6

Step-by-step explanation:

ive had this question

5/6
Had same question

Subtract the linear expressions.

(3/4x−1)−(1/3x+4)

What is the difference?

Enter your answer in the box. Enter fractions as simplified fractions.

Answers

1/12x-5 is right I think
The answer is 5/12x-5

Half the sum of a number and 1.75 is -5.1 what is the number

Answers

answer is going to be 8.6

Answer:

8.6

Step-by-step explanation:

or what the other person said-

Andre was trying to write 7⁴/ 7⁻³ with a single exponent and wrote 7⁴/ 7⁻³ = 7⁴⁻³ = 7¹. Explain to Andre what his mistake was and what the answer should be.

Answers

Answer:

His mistake was that he removed the fraction and instead he used [tex]7^4^-^3 =7^1\\[/tex]. He should've kept the fraction to make the answer right.

Item 3
Is this function linear or nonlinear?

y=2x²−4

linear

nonlinear

Answers

Answer:

B.nonlinear

Step-by-step explanation:

Non linear, in order for it to be a linear function it couldn’t have the x to a power

URGENT! WILL GIVE BRAINLY FOR CORRECT ANSWER, AND NO LINKS

Draw the image of \triangle ABC△ABCtriangle, A, B, C under a dilation whose center is PPP and scale factor is 222.

Answers

Answer:

I dont know

Step-by-step explanation:

i dont know answer sorry bro. i want to answer but i can't

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