Professor Baird wants to mix a solution
containing 10% acid with one containing 15%
acid to obtain a 20-ounce solution containing
12% acid. How many ounces of the 10% solution
should the professor use?

Answers

Answer 1

Answer:

The answer is 12 ounces :)

Step-by-step explanation:


Related Questions

A piece of fabric for a quilt design is in the shape of a parallelogram. The base is 5 in
and the height is 4.3 in. What is the total area of the 23 parallelogram pieces needed for
the quilt?

Answers

Answer:

A =a l × w and then you solve the equation you get the answer

Answer:

494.5 square inches

Step-by-step explanation:

5 times 4.3 is 21.5

21.5 times 23 is 494.5

pls help asap! i will mark brainliest!

Answers

Answer:

3

Step-by-step explanation:

2 x 7= 14 - 17= 3

Josh, Ben and Rick have 70 marbles altogether. The ratio of the number marbles Josh has to the number of marbles Rick has is 1: 2. However, Ben has 15 marbles fewer than Rick. How many marbles does Ben have?

Answers

Answer:

Ben has 19 marbles

Step-by-step explanation:

First taking that josh and ricks ratio is 1:2, this would set up in an equation as [tex]2j = r[/tex] and with ben having 15 less than rick, his formula would be [tex]r = b + 15[/tex] as well as the total of all the boys marbles together being this [tex]j+r+b=70[/tex]

Now we put all of these equations into a set to answer them.

[tex]2j = r\\ r = b + 15\\j+r+b=70[/tex]

First we solve for j

[tex]2j = r\\ j=\frac{1}{2} r[/tex]

Then substitute j

[tex]j+r+b=70\\ \frac{1}{2}r+r+b=70\\ 2b+3r=140[/tex]

Then simplify and multiply by 2 to even out

[tex]r = b + 15\\ -b+r=15\\2b+3r=140[/tex]

Now eliminate the b variable and combine equations

[tex]2b+3r=140\\-2b+2r=30[/tex]

[tex]5r=170[/tex]

Now divide and solve for r

[tex]5r=170\\r=34[/tex]

Now we know Rick has 34 marbles of the 70 marbles, so we can substitute his number back into the original equation

[tex]-b+34=15\\b=19[/tex]

Now we know Ben has 19 marbles of the remaining 36, and can substitute his number as well

[tex]j=\frac{1}{2}(34)\\j=17[/tex]

And now we know how much everyone has, to check we rewrite all the equations with their respective numbers

[tex]11+34+19=70\\2(17)=34\\34=19+15[/tex]

[tex]70=70\\34=34\\34=34[/tex]

Which means the ordered pairing of (b, j, r) is (19, 17, 34)

Using substitution, which value of x makes this equation true?

3+x = 10

A. 13
B. 7
C. -7
D. -13

Answers

Answer:

The answer is B. 7

Step-by-step explanation:

3 + x = 10

3 + 7 = 10

B.

x=7.

Step by step:

x+3=10.

x=7.

(I subtracted 3 on both sides)

Hope this helped!! :)

The side of the Australia flag are in a ratio of 1.2.if the flag is 5 feet long what is its height?

Answers

2.5 maybe sorry if i wrong

Someone plz help me :(

Answers

Answer:

A

Step-by-step explanation:

the ratio shows that for every two songs beth's mom has, beth has one more.

*3 is larger than 2 by 1

meaning, if her mom has 6 songs, then she will have 7

if Beth has 12 songs, her mom would have one less, 11

3х — бу - z = 3
4х +4y +z= — 1
X-2y – z = -1

Answers

Answer:

[tex]3x - 6y - x + 3 = =[/tex]

Help me pls i need help

Answers

Answer:

I'm pretty sure it is LINEAR.

I may be wrong

Step-by-step explanation:

BRAINLIEST?

Answer:

linear

Step-by-step explanation:

the inputs are not the same.

im not exactly sure, but im taking this lesson and thats what i learned :)

pls help!!!!

Sandra uses 6.39 ounces of beans in a recipe. If she triples the recipe, how many ounces of beans will Sandra need?​

Answers

Answer:

19.17 ounces

Step-by-step explanation:

If she uses 6.39 ounces for 1 recipe and she wants to "triple" the recipe we then know that triple also means 3 times.

Due to that fact we now know what our equation is:

6.39 x 3  which equals 19.17

I hope this helps have great day :)

Answer: 19.17

Step-by-step explanation:  6.39 x 3 = 19.17

i don’t understand can I have help please

Answers

Answer:

(y + 1)³

Step-by-step explanation:

Answer:

y^3+3y^2+3y+1

Step-by-step explanation:

Factor the numerator and denominator to cancel the common factors.

(Whenever ^ is in the answer, it means that the number to the right of it is the exponent)

Find the product of (3x + 7y)(3x − 7y)

Answers

Answer:

9x^2 - 49y^2

Step-by-step explanation:

Answer: 9x^2 - 49y^2

Step-by-step explanation:

(3x + 7y)(3x − 7y)

9x^2 -21xy + 21xy - 49y^2

9x^2 - 49y^2

100 POINTS IF U GET THIS RIGHT!

Answers

Answer:

The y-intercept is 4.

Step-by-step explanation:

Our equation: y = mx + b

m = slope

b = y-intercept

=> Now, let's compare:

=> y = mx + b = y = -7x + 4

We can tell that b = 4

Hoped this helped.

[tex]y =-7x +4 \\\\\text{ The above equation is in a form of y=mx+b, where b is the y-intercept}\\\\\\\text{Hence the y-intercept of the given equation is}~ 4.[/tex]

Please help and no links!!!!

Answers

Answer: 18

Step-by-step explanation:

simplify.
remove all perfect squares from inside the square roots. assume x and y are positive.
√8x^3y^2

Answers

Answer:

[tex]2xy\sqrt{2x}[/tex]

Step-by-step explanation:

Because this is a whole term in itself (no addition or subtraction), you can just directly find squares and factor them out. First, when looking at 8, you can factor out 4, to get 2 on the outside. Then, while looking at x cubed, you can factor out x squared, to get x on the outside, and when looking at y squared, you can just pull that outside itself, to get y. Now, we have one 2 and one x remaining, for a total of [tex]2xy\sqrt{2x}[/tex]

someone please help me

Answers

Answer:

∡3 & ∡6 are same side interior angle.

∡4 & ∡6 are alternate interior angles.

∡2 & ∡8 are vertical angles.

∡1  & ∡5 are corresponding angles (because they are in the same spot).

∡1  & ∡3 are vertical angles (because they are the opposite angle of each other).

∡1 & ∡2 are supplementary angles (because they add up to 180°).

The Stock Market Nadia is a stockbroker. She earns 13% commission each week. Last week, she sold $5,300 worth of stocks. How much did she make last week in commission? If she averages that same amount each week, how much did she make in commission in 2011?

Answers

Answer:

34

Step-by-step explanation:

Which ordered pair is a solution to
the equation
3x + 9y = 27 ?

Answers

Answer:

x=9-3y

Step-by-step explanation:

- Move the variable to the right & change its sign

3x + 9y = 27

- Divide both sides by 3

3x = 27 - 9y

- Write the solution x in parametric form

x=9-3y

- Solution:

x= 9-3y

Describe the steps you used to solve the equation and find the amount of Carrie’s allowance.

Linear equation:
1/4a+ 1/3 a + 8 = 22

Answers

Multiply each of the fractions by 1 to get them to have the same denominator.
1/4 x 3/3 = 3/12
1/3 x 4/4 = 4/12
New Equation:
3/12a + 4/12a + 8 = 22
now add up similar terms
7/12a + 8 = 22
subtract 8
7/12a = 14
multiply each side by your denominator
12(7/12)a=12(14)
7a=168
divide by 7
a = 24

some one please help

Answers

Answer:

i can't see the photo

Step-by-step explanation:

pleas send it again

Answer:

Step-by-step explanation:

f(x) = 3-x/5

 

Explanation:

The inverse of a function completely swaps the x and y values. One way to find the inverse of a function is to switch the "x" and "y" in an equation

y=3x -5

turns into

x = 3y+5

Then solve the equation for y

x=3 y- 5

x+5 = 3y

the divide all by three

1/3x + 5/3 =y

f ( x ) − 1 = 3/1 x + 5/3

Urgent! Someone please answer! Will give Brainliest!


4 cm

x cm

The area of rectangle ABCD is 28 cm2

B

B

a) What is the length of side AB in terms of x?

6 cm

length of AB =

(1)

x cm

D

с

b) If the area of rectangle ABCD is 28 cm,

we can show that x2 + ax = b where

a and b are integer values.

Work out the values of a and b.

b

a =

(1)

b=

(1)

Total marks: 3

Answers

Step-by-step explanation:

it is the most easiest answer we get 566474 I think this will help you

Why is math hard????

Answers

Answer:

It doesnt have to be, you are making it. It's really just addition multiplication divison and subtraction in different ways

Step-by-step explanation:

Answer:

BECAUES IT IS

Step-by-step explanation:

I don´t know

Divide $80 among three people so that the second will have twice as much as
the first, and the third will have $5 less than the second. Using an algebraic
equation, find the amount that each will get.

Answers

Answer: 19,38, and 33.

Step-by-step explanation:

80=2x+x+2x-5=5x=95=x=19

A submarine is cruising at an elevation of
-250/3 meters below sea level, then
descends another 120% meters into the
sea. What is the new location of the
submarine?……NO LINKS

Answers

Answer:

Step-by-step explanation:

these are two different questions .

first i solve first

position of submarine= -250/3 meters below see level

height descended=120 % of 250/3=120/100 ×(250/3)=300,00/300=100 m

new location=-250/3+(-100)=-650/3 below see level.

2nd question

position of submarine=-250 2/3=-752/3 m below see level

height descended=120 5/8=965/8 m =-965/8 m below see level

new positin=-752/3+(-965/8)=-(6016+2895)/24=-8911/24=-371 7/24m below sesa level.

3w-4z=8
2w+3z= -6
What is w and z for these two equations?

Answers

The w is 0 and z is -2.

What’s the product of 2.6

Answers

Answer:

2×6=12

Step-by-step explanation:

what is 2+3-4+6+22=

not that hard

Answers

Answer:

29

Step-by-step explanation:

Simplify 2+3 to 5

5-4+6+22

Simplify 5-4 to 1.

1+6+22

Simplify 1+6 to 7.

7+22

Simplify.

29

PLS HELP ASAP ITS AN EMERGENCY ITS DUE IN A FEW HOURS THANKS

Answers

Answer: -8

Step-by-step explanation:

-8+22=14

Has to be less than 14 so the value has to be less than -8

Sophie liked 35 of the 50 different flavors of Jelly Beans. Enter the percent of the Jelly Bean flavors she did not like.

Answers

70% would be the answer

13- pls help with this pre-algebra problem is urgent

Answers

Answer:

What else is in the equation?

Step-by-step explanation:

Also, i think the - should be right here>-13 instead of it being here 13-<

Help me please!! :) :)

Answers

THE SECOND AND THIRD ANSWERS
Other Questions
What 5,727 dived by 83 Write 3^2 33 as a single power of 3. Jane Roses semimonthly salary is $750. Her yearly salary is A.$9000 B. $12,500 C. $18,000 D. $19,500 E. $21,000 For the lunch special at a high school cafeteria, students can get either salad or french fries as a side order. The following table shows the number of each side order for the lunch specials purchased on one day, classified by the grade of the student. A local business donated 40,782 marbles to distribute equallyamong 42 sixth grade classes in the district. How many marblesdid each class receive? What city in florida gets the least amount of hurricanes. Poppy most likely qualified for a zero interest auto loan because:A. her credit-to-debt ratio is very high.B. her credit-to-debt ratio is very low.C. she applied during a special auto sale.D. her credit card balance exceeds her current car loan payment. Which expression does not belong with the other three? Explain your reasoning.2(x+2) 5(x-8) 4+(x4) 8(9-x)Which one does not belong:Explain your reasoning: what times what equals 48 and adds to -16 The nature of intellectual property laws and how they are enforced is one aspect of a country's _____. 3. Kyle and Michael a rup a lap around a track. Kyle gets a 50 a meter head start and runs 3 meterspersecond. Michael runs at a speed of 4 meters per second. How long will it take for Michaelto reach Kyle? 21 What important information does Odysseus learn in the Land of the Dead (Book 11)? List two things he learns. 3 I What is the frequency of yellow light, which has a wavelength of 5.56 x 10^-7 m?O A) 5.40 x 10^14 m/sO B) 5.40 x 10^14 HzO C) 1.85 x 10^15 m/sO D) 1.85 x 10^15 Hz Is how much, where and when you spend money the same as you using your right to free speech? Kristina (41), a freelance photographer, reports a net profit of $50,000 on schedule c, profit or loss from business. This is her only income. How much is kristina's self-employment tax?. Identify one point and the slope from the equation y + 4 = 1/3(x - 1)Options:m = 4 Point = (1/3, 1) m = 1/3 Point = (1, -4)m = 1/3 Point = (1, 4)m = 1/3 Point = (-1, 4) Ordena las biriguienses palabras y descubre la frase.a. JOSHI: ___________________b. CANOBEDEZ: ___________________c. A: ___________________d. USS: ___________________e. SERPA: ___________________f. NE: ___________________g. DOTO: ____________________ h. EUQRPO: ____________________i. SOE: ____________________j. SE: ____________________k. OL: ____________________l. OTRRECCO: ____________________m. ERTNE: ____________________n. SONATIRIAC: ____________________ Potato Osmosis LabPerform the calculations for the following on a separate sheet of paper:-300 mL of 0.0 M sucrose solution-300 mL of 0.2 M sucrose solution-300 mL of 0.4 M sucrose solution-300 mL of 0.6 M sucrose solution-300 mL of 0.8 M sucrose solution Solve 2x + 3(x+ 10) = 60.O A. x = 6O B. x = 5O C. x= 3O D. x = 7 can anyone help me with this ?? pleasee and thank you.