A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 55% salt and Solution B is 80%
salt. She wants to obtain 30 ounces of a mixture that is 65% salt. How many ounces of each solution should she use?

Answers

Answer 1
Solution B is the one she should use

Related Questions

If 400 people in your neighborhood had a cell phone last year and one year later 500 people had a cell phone,
what percent has cell phone ownership increased?

Answers

Amount of increase = 100 users
100/400 = 0.25 = 25%

EASY MATH PLS HELP !!!

Answers

Answer:

1. 52

2. 86

3. 55

Answer:

if its so easy, why cant you do it?

Step-by-step explanation:

but either way its

52

86

55

please show ur steps thx

17 + 4x = 94. Solve for x.

Answers

Answer:[tex]\boxed{\boxed{\sf{x=19.25}}}[/tex]Solution Steps:

______________________________

1.) Subtract 17 from both sides:[tex]17-17=[/tex] Cancels Out[tex]94-17=77[/tex]

 - We do this to get 1 number left over at the end sum of the equation. To do this you do the opposite of what you see. In this case we have a positive 17, so you subtract 17 on each side.

2.) Divide both sides by 4:[tex]4x[/tex] ÷ [tex]4=x[/tex][tex]77[/tex] ÷ [tex]4=19.25[/tex]

 - We do this to get x alone. To do this you do the opposite of what you see. In this case we have [tex]4(x)[/tex] being multiplied, so you divide by 4 on each side.

So your answer is [tex]\bold{19.25}[/tex].

______________________________

Answer:

x= 77/4

Step-by-step explanation:

(You will first have to rearrange terms)

17+4x-94

4x+17=94

(Now you will have to subtract 17 from both sides of the equation.)

4x+17=49

4x+17-17=94-17

(You will have to simplify now)

4x=77

(You will have to divide from both sides of the equation by the same term.)

4x=77

4x=77

---  ---      (Divide by 4.)

4    4

(you will now simplify)

x=77/4

and that's how you get your answer.

I hope this helps.      :)

What is the equation of the line that passes through the point (4, 4) and has a slope
of 3?

Answers

Answer:

y = 3x - 8

Step-by-step explanation:

Let me know if I am wrong.

Answer:

y=3x-8

Step-by-step explanation:

What is the sign of f on the interval?

Answers

F is sometimes Positive and sometimes negative on the interval

The function f(x) will be sometimes positive and sometimes negative on the interval

Option (3) is correct.

What is a function?

An arrangement known as a function connects inputs to essentially one output.

In other words, a function is a relationship between variables, and the nature of that relationship—for example, y = sinx and y = x +6—defines the function.

Given function:

f(x) = (x - 5) (2x - 7) (7x - 3)

The term (x - 5) will be negative if x < 5.

The term (2x - 7) will be negative if x<3.5

So, If x = 4, (x - 5) will be negative but (2x - 7) will be positive, resulting in a negative overall value.

Therefore, if x = 3, then (x - 5) will be negative, as well as (2x - 7), making the whole value negative.

Hence, the function f is sometimes positive and sometimes negative on the interval.

Learn more about function here:

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help pleaseeee!!!!!! 30 points​

Answers

Answer:

Pen = y

25.00 + y

Step-by-step explanation:

expressions do not have equal signs.

25 more than the pen is 25 + y

the expression would be

25 + y

Answer:

we will say that x stands for the pen

x + $25 = cost of the pencil

Step-by-step explanation:

Find the area of a triangle with the following sides

Answers

Step-by-step explanation:

step 1. The easiest way is to use Herons formula.

step 2. s = (a + b + c)/2 = (3 + 5 + 6)/2 = 7

step 3. A = sqrt(7(7-4)(7-5)(7-6))

step 4. A = sqrt(7(3)(2)(1))

step 5. A = sqrt(42)

step 6. A = 6.4807 = 6.5cm^2.

An expression is shown 7/4 - ?/7 = 1 1/28 What is the missing number?

Answers

Answer:

i pretty sure the missing number is 4

Step-by-step explanation:

Brandi sells 20 cookies for $10.00. How much money will she make if she sells 72 cookies?

Answers

Answer:

he will make $36

Step-by-step explanation:

20 cookies for 10 dollars = 2 cookies for 1 dollar, so we have to do 72 divided by 2 which is 36

what is the area of a hexagon with each side equaling [tex]\frac{16\sqrt[]{3} }{3}[/tex]

Answers

Hopefully this helped you enough , if it’s wrong I’m sorry.

a rectangle has sides measuring (3x + 5) units and (6x + 11) units

Answers

Answer:

Part A: 18x^2+63x+55, B: second degree trinomial, Part c: (3x+5) (6x+11) =18x^2+63x+55

Noah is planning his birthday party. He is deciding between three themes: space, safari, and comics. He also has to determine where he wants his party, at a skating rink or a park. Lastly, he needs to pick the day of the week that the party will happen. His options are Friday, Saturday, or Sunday. How many different possible party outcomes does Noah have with all of these options? solve 1 2 3 4 5 by this math problem

Answers

Answer:

18

Step-by-step explanation:

because 3 themes times 2 places times 3 days of the week = 18 options

15+26-13
Random okay have a great day

Answers

Answer:

28

Step-by-step explanation:

41-13=28

you too have a great day ♡

Simplify the expression d + 11 - 8d.

Answers

the answer is -7d+11
11-7d is the answer.

A car is traveling at a speed of 50 meters per second. What is the cars speed in kilometers per hour? How many kilometers will the car travel in 3 hours?

Answers

The car is going 180 kph. In three hours the car would travel 540 kilometers. Hope this helps.

Answer:

180 kilometers per hour, 540 in 3 hours

find the slope of the line that passes through (4,1) and (7,5)

Answers

Answer:

4/3

Step-by-step explanation:

You flip a coin and roll a six-sided die. How many possible outcomes are in the sample space?​

Answers

Answer:

There are two outcomes for the coin because it has two sides and there six outcomes for the dice because it has 6 sides.

Step-by-step explanation:

1: heads or tails (2 possibilities)
2: 1, 2, 3, 4, 5, 6 (6 possibilities)

6 * 2 = 12 outcomes

{1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T}

Please help! Giving points :)!

Answers

Answer:

C

Step-by-step explanation:

3/5 + 1/4 = 0.85

0.85 as a fraction is 17/20

So the answer is C

3 (x - 1) = 2x + 9
Is it
A.infinite solutions
B. One solution
C. Zero solutions

Answers

Answer:

its infinite solution

Step-by-step explanation:

INEQUALITIES PLEASE HELP!!!

The record for the most rolls of wrapping paper sold for the school fundraiser is 593. Let w = the number of rolls of wrapping paper sold.

Choose Yes or No to tell if each inequality represents a number that would beat the school record.

w ≥ 593 (YES OR NO?)

w > 593 (YES OR NO?)

w ≤ 593 (YES OR NO?)

593 < w (YES OR NO?)

Answers

Answer:

The record is 593.

To beat the record you need a greater number:

w > 593

Options:

w ≥ 593  NO, it includes 593 w > 593  YES   w ≤ 593  NO, it includes 593 and smaller numbers  593 < w  YES

work
Determine whether each triangle with sides of given lengths is a right
triangle. Justify your answer. (Example 3)
30 cm, 122 cm, 125 cm
5

Answers

Answer:

It is not.

Step-by-step explanation:

The formula of a right triangle is "[tex]a^{2}+b^{2} =c^{2}[/tex]" where c is the hypothenuse (the longest side of the triangle) if we replace the formula with the values we will get

  "[tex]30^{2} +122^{2} =125^{2} \\900 + 14884 = 15625\\15784\neq 15625[/tex]

Help please I have a timer and it almost over

Answers

Answer:

2/25 or 0.08%

Step-by-step explanation:


19. Explain the difference
between (-12)2 and - 122.

Help!

Answers

(-12)2 equals 144 -122 equals 22

back at it again can someone help me I'll give out brainly

Answers

Answer: what is the question

Step-by-step explanation:

A skating rink charges $75 for a nightly reservation as well as $5 per person skating. If n is the number of people skating, write an expression for the cost of reserving the rink.

Answers

Answer:

75+5n

Step-by-step explanation:

please help!

One number is 5 more than another. The sum of thrice the small plus twice the larger is 50

What are the two numbers?

A: 8
B: 10
C: 7
D: 13
E: 5
F: 15
G: 12

Answers

A and D I did the maths

How to solve a system of equations by graphing

Answers

You first graph both equations.
Once that is done find the point of intersection (where the equations cross).
The point where they meet up (intersect) will be your solution.

Find the missing number (i.e. the coefficient in front of x) so that the equation has no solutions: □x + 4 = 4x + 15

Answers

Answer:

X=8

Step-by-step explanation:

Brad has a garden with dimensions 12 feet long x 7 feet wide. He wants to enlarge the garden to an area of 119 square feet. How much farther will he need to extend the length of the garden to attain his desired

Answers

Answer:

the length will need to be increased by 5 feet

He will need to 5 feet extend the length of the garden to attain his desired.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Brad has a garden with dimensions 12 feet long x 7 feet wide.

And, He wants to enlarge the garden to an area of 119 square feet.

Now,

Let the number of additional feet added to the length = x

So, We can formulate;

⇒ 7 (12 + x) = 119

⇒ 84 + 7x = 119

⇒ 7x = 119 - 84

⇒ 7x = 35

⇒ x = 5

Thus, He will need to 5 feet extend the length of the garden to attain his desired.

Learn more about the mathematical expression visit:

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Which of these needs to be completed first in order to construct a circle that circumscribes a triangle?

A. the perpendicular bisectors of any two sides of the triangle

B. the lines perpendicular to any two sides of the triangle

C. the altitudes of any two sides of the triangle

D. the medians of any two sides of the triangle

Answers

Step-by-step explanation:

step 1. draw a perpendicular bisector for 2 sides of a triangle.

step 2. where they cross is the center of the circle.

step 3. construct a circle starting at one triangle point and the circle will connect all triangle points.

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