Someone plz helpppp

A chemistry teacher needs to mix a 40% salt solution with a 70% salt solution to make 25 qt of a 52% salt solution. How many quarts of each solution should the teacher mix to get the
desired result?
40% salt solution=?qt
70% salt solution=?qt

Answers

Answer 1

Answer:

Step-by-step explanation:

We assume we need x qt of 40% and y qt of 70%

40/100 x + 70/100 y = 52/100 (x+y)

So 3y = 2x, which means y = 2/3x

And we know that x + y = 25qt

So x + 2/3x = 25qt

So x = 15 and y = 10


Related Questions

hlep plees

hi i need to do a test for mi 1 grad clas
what 2-2=
3-1=
and for my hom work
what is
56-210=

300x 285
please help

Answers

2 - 2 = 0
3 - 1= 2
56 - 210= 154 (or -154)
300 x 285=85500

Answer:

0, 2, 154, 85,500

Step-by-step explanation:

these are the anwsers to your question

Tom plans to save twice as much next month as he did during the months he saved over $30 a month. How much will Tom save next month?

This question is a multiple-choice answer.

A. $63
B. $126
C. $86
D. $43

Answers

Answer: i think it is A tell me if i am wrong!

Step-by-step explanation:

Help me on question 5!!! Plsss

Answers

Answer:

The answer is C

Step-by-step explanation:

use an open circle for "less than" or "greater than"and a closed circle for "less than or equal to" or "greater than or equal to".

y = 5x – 22
3x + 2y = 34

Answers

Answer:

y = 5x – 22

3x + 2y = 34

Step-by-step explanation:

Answer:

x = 6, y = 8

Step-by-step explanation:

[tex]y=5x-22\\3x+2y=34\\\\3x + 2(5x-22)=34\\3x + 10x - 44 = 34\\13x - 44 = 34\\13x = 78\\x = 6\\\\y = 5*6-22\\y = 30-22\\y = 8[/tex]

A college newspaper interviews a psychologist about student ratings of the teaching of faculty members. The psychologist says that the evidence indicates that the correlation between the research productivity and teaching rating of faculty members is close to zero. The paper reports this as Professor McDaniel said that good researchers tend to be poor teachers, and vice versa. Which statement in plain language (i.e. without the word correlation) correctly explains the psychologist's meaning?
A)There is little connection between research productivity and teaching rating.
B) While bad researchers tend to be good teachers, there is no similar relationship between good researchers and bad teachers.
C) While good researchers tend to be bad teachers, there is no similar relationship between bad researchers and good teachers.
D) Good researchers tend to be bad teachers and bad researchers tend to be good teachers.

Answers

Answer:

The correct option is A.

Step-by-step explanation:

As the psychologist states that there is no correlation found between teaching ratings and research productivity of the same faculty member, meaning that there is no significant relationship between the two. The paper's report states quite the opposite, that there is an inverse correlation. The statement that explains what the psychologist says correctly is A. There is little connection between teaching rating and research productivity.

I hope this answer helps.

How do you find the square root of -24 by simplifying

Answers

Answer:

you can't square root with negative numbers the answer will be math error and you cant simplify it unless it has no negative in it.

How many quarts will you get if you mix 5 gallons 5 quarts and 6 pints

Answers

Answer:

28

Step-by-step explanation:

There are 4 quarts in a gallon, and since we have 5 gallons that gives us 20 quarts. Then we add the 5 quarts to give us 25 quarts. Finally, there are 2 pints in quart, so that gives us 3 quarts. Add those last three quarts and we get 28 quarts in all.

Total quarts when you mix 5 gallons 5 quarts and 6 pints is, 28 quarts

We have to given that,

To find total quarts if you mix 5 gallons 5 quarts and 6 pints.

Since, 1 gallon = 4 quarts

Hence, 5 gallons = 5 x 4 = 20 quarts

And, 1 pints = 1/2 gallons

Hence, 6 pints = 6/2 gallons

                       = 3 gallons

So, Total quarts when you mix 5 gallons 5 quarts and 6 pints is,

20 + 5 + 3

28 quarts

Therefore, Total quarts when you mix 5 gallons 5 quarts and 6 pints is,

28 quarts.

Learn more about the measurement unit visit:

https://brainly.com/question/777464

#SPJ6

At lunch, Darius ordered a slice of pizza for $2.75, French fries for $1.20, and a drink for $1.35. Sale tax was $0.37. If Darius paid for his lunch with a $10 bill, how much change did he get back?

Answers

Answer:

he gets 4.33 dollars back

Step-by-step explanation:

add 2.75+1.20+1.35+0.37= 5.67

10-5.67=4.33 $

Answer:

4.33

Step-by-step explanation:

if u add 2.75 1.20 and 1.35 plus the additional 37 cents u get 5.67 then u do 10- 5.67

Using distributive property write an expression using 6,7,5,&3 to equal 75

Answers

Answer:

(3*7-6)*5=75

(5+7)*6+3=75

Step-by-step explanation:

1. What is the LCM of 15 and 100?
a. 400
b. 300
c. 200
d. 100​

Answers

Answer:

b. 300

       

i need 20 words this is filler                                  

The answer would be B.300

Hope this helps

Have a great day/night

Feel free to ask any questions

Solve and check the equation.
x/9=x/10-4

Answers

start by getting like terms to one side.
x/9 - x/10 = -4
now make the fractions have a common denominator so that you can subtract
10x/90 - 9x/90 = -4
now simplify
x/90 = -4
now multiply each side by 90 to get rid of the fraction
x = -360
to check, just plug in the value of x into your original equation
it should come out to
-40 = -40

Answer:

x = -360

Step-by-step explanation:

x/9 = x/10 - 4

=> x/9 - x/10 = -4

=> x/10 - x/9 = 4

=> 9x/90 - 10x/90 = 4

=> -x/90 = 4

=> -x = 90(4)

=> x = -360

1000003842638476238476+2837428734682764283746

Answers

Answer:

3.8374326e+21

Step-by-step explanation:

id.k goo.gle said this

alternate exterior angles theorem
vertical angles theorem
corresponding angles postulate
same side interior angles theorem
alternate interior angles theorem
are all the second awsner which one is it


i need this awnser

Answers

117°

same side interior angles theorem

Why is sum of yi.ui zero

Answers

Answer:

Q

=

n

i

=

1

(

Yi

(

β

0

+

β

1

X

i))

2

HELPP I NEED THIS BY 2:30

The second angle of a triangle is 7 more than twice the first angle. The third angle is 3 less than the first. Find all
three angles if the sum of their angles is equal to 180°. (Let x = the measure of the first angle)

Answers

Answer:

44, 95, and 41

Step-by-step explanation:

[tex](x) + (2x +7)+(x-3)=180\\4x +4 = 180\\4x = 176\\x = 44[/tex]

Would the mass of a mouse more likely be 150 gram or 150 kilograms

Answers

150 grams because kilograms is wayyy to large and heavy. 150 kilograms to pounds would be 330.69 pounds and a mouse weighs no where near that

June's flower bed has a length of 8 feet and a width of seven eighths feet. Is the area of the flower bed larger, smaller, or equal to 8 square feet?

Answers

Answer:

it would be larger. the square footage is 56 square feet.

Step-by-step explanation:

What’s 59+(h-11) ??????

Help pleaseeeeee!!!!!!!!

Answers

Answer:

2hklakkskamkaoaiaikanwkaisosossosooaolalao

b.1=(-2x2)+5

or you say x=2 and y=1

Step-by-step explanation:

bro bit a no answer ok

please mark me as brainlist

Write an equation in slope-intercept form that describes the relationship between the number of minutes, x, and the amount charged, y.​

Answers

Answer:

y = 1/20x + 6

Step-by-step explanation:

The number of minutes is your x-value. The amount charged is your y-value.

Let's convert the numbers in the table into coordinates.

(30, 7.5)

(120, 12)

(220, 17)

Now, we will take two points and use the slope formula to plug into the slope-intercept equation: y = mx + b

I chose the first and last points given. All three points do not lie on the same line, but using the first and last point should be closer to the line of best fit.

(30, 7.5) & (220, 17)

m = (y₂ - y₁) / (x₂ - x₁)

m = (17 - 7.5) / (220 - 30)

m = (9.5) / (190)

m = 0.05 = 5/100 = 1/20

m = 1/20

Plug m into your equation.

y = 1/20x + b

To find b, plug in a point for x and y.

17 = 1/20(220) + b

17 = 11 + b

b = 6

Plug b into your equation.

y = 1/20x + 6

Hope this helps!

EASY WORK!!plz look at the photo and yes its easy for other people but not me for people asking.

Answers

Answer:

Here's a way this can help! If the graph it by two then any odd number will by by the middle, start by the origin and you'll be able to see it clearly.

Answer:

start by the origin and you'll be able to see it clearly

Step-by-step explanation:

uh

PLEASE solve the question below

Answers

Answer:

42.30 m

Step-by-step explanation:

Let's take the distance between the campsite, AB, to be "x".

Since the two triangles are similar, their corresponding side lengths are proportional. Therefore:

47/x = 82/73.8

Cross multiply

x*82 = 47*73.8

x = (47*73.8)/82

x = 3,468.6/82

x = AB = 42.30 m (nearest hundredth)

a. Find the value of x
below

Answers

#The x side is same with 80° so

11x + 3 = 80°

11x = 80 - 3

11x = 77

x = 7

Answer : 7

Samantha works in a chocolate factory at a conveyor belt that is 18 inches wide and moves large amounts of chocolate to packaging. She counts 225 chocolates in a rectangular section of the conveyor belt measuring 6.5 inches long and 18 inches wide. What is the approximate number of chocolates per square inch of the conveyor belt, rounded to the nearest hundredth?

Answers

Answer:

1.92 chocolates per in²

Step-by-step explanation:

Given that:

Dimension of conveyor belt :

6.5 inches long and 18 inches wide (6.5in * 18in)

Area of conveyor belt = 6.5 * 18 = 117 in²

Number of chocolate = 225

Number of chocolates per square inch :

225 / 117

= 1.9230769 chocolates

= 1.92 chocolates per in²

The table shows the results of a survey of 100 people selected at random
at an airport. Find the experimental probability that a person selected at
random is going to City C.


The experimetal probability that a person selected at random is going to city C is

Answers

Answer:

[tex]\frac{4}{25}[/tex]

Step-by-step explanation:

22/200 simpilfy is 4/25

The experimental probability that a person selected at random is going to city C is P ( C ) = 4/25 = 0.16

What is Probability?

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

Probability = number of desirable outcomes / total number of possible outcomes

The value of probability lies between 0 and 1

Given data ,

Let the experimental probability that a person selected at random is going to city C is P ( C )

Now , the total number of people in the city = 100

The number of people going to city C = 16

So , P ( C ) = number of people going to city C / total number of people in the city

On simplifying , we get

P ( C ) = 16 / 100

P ( C ) = 4/25

P ( C ) = 0.16

Hence , the probability is 0.16

To learn more about probability click :

https://brainly.com/question/17089724

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What is 4•(5+3)=4•8=

Answers

Answer:

32

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

I hope this helps, and have a great day! :)

The angle measures of a triangle are shown in the diagram below.
What is the value of x?

Record your answer in the grid. Be sure to use the correct place value.

8 points total

7 points correct answer

1 point correct bubbling on grid

Answers

Answer:

6x+90+11x+5=180(sum of interior angle of triangle)

17x=180-95

x=85/17=5 is your answer

using number line what is 4-5​

Answers

Answer:

-1

Step-by-step explanation:

4 - 5 = -1

Count:

4, 3, 2, 1, 0, -1

Whats the slope to this.

Giving brainliest. Correct answer

Answers

Answer:

m=-25

Step-by-step explanation:

m=Δh/Δt

(Im choosing for the difference in height and time (Δh and Δt) to be the difference between the data in the first two rows)

m=(4500-5000)/(20-0)

m=-500/20

m=-25

M = -25 is the correct answer

SOLVE the EXPRESSION
Evaluate 6s - 3t If s=4 and t=-2

Answers

Answer:

30

Step-by-step explanation:

6(4) - 3(-2) =

24 + 6 =

30

Driving 65 mph, it takes Alicia 3 hours to reach the airport to go on a vacation. It then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. How many miles does Alicia travel to get to her destination?

Answers

Answer:

1,795 mi. traveled in total

Step-by-step explanation:

3 × 65 = 195 mi. driven by car

4 × 400 = 1,600 mi. flown by jet

1,600 + 195 = 1,795 mi. traveled in total.

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