A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound
B. If a chemist wants to make 621 milliliters of the drug, how many milliliters of compound A are needed?

Answers

Answer 1

Answer:

884

Step-by-step explanation:

We know the ratio of A to B is 5:8

let x = the multiplier

then

5x = amt of compound A

and

8x = amt of compound B

 

:

5x + 8x = 884

13x = 884

x = 884/13

x = 68 is the multiplier

therefore

5(68) = 340 millilters of compound A needed

:

:

Confirm our answer. Find the amt of B

8(68) = 544 ml of B

340 + 544 = 884


Related Questions

Choose ASA, SAA, or neither
to describe this figure.
A
B
С
ASA
SAA
neither

Answers

ASA is the answer give me brainliest

Answer:

SAA

Step-by-step explanation:

SAA is correct

please help me I dont know the answer​

Answers

Answer:

2.71

Step-by-step explanation:

Its as simple as plugging in the values of y and z.

THis would give you

      -1.46 + (-3.82) + 7.99

This plus^ you can think about having a 1 in front of it like

-1.46 + 1 (-3.82) +7.99

Multiple positive 1 with -3.82 1 times any value is that number, and positive times negative is negative. then looking like this:

-1.46 - 3.82 + 7.99 plug into a calculator and you get +2.71

Answer:

2.71

Step-by-step explanation:

We'll add the first value and the value in parentheses, being -3.82, then we'll add y, which is a negative because "-y", being -1.46. That becomes -5.28.

We'll then take our -5.28 and add 7.99, which will become 2.71.

Therefore, 2.71 is your answer.

A sequence is recursively defined by f(1)=3,f(n)=2* f(n-1) for n >=2. Write the equation for the nth term

Answers

Given:

[tex]f(1)=3,f(n)=2\times f(n-1)[/tex]         ...(i)

For [tex]n\geq 2[/tex].

To find:

The nth term for the given recursive formula.

Solution:

The given recursive formula is of the form of

[tex]f(n)=r\times f(n-1)[/tex]            ...(ii)

It is the recursive formula of a GP, where r is common ratio.

On comparing (i) and (ii), we get

[tex]r=2[/tex]

Now,

First term: [tex]a=f(1)=3[/tex]

Common difference: [tex]r=2[/tex]

nth term of a GP is

[tex]f(n)=ar^{n-1}[/tex]

Putting a=3 and r=2, we get

[tex]f(n)=3(2)^{n-1}[/tex]

Therefore, the equation for the nth term is [tex]f(n)=3(2)^{n-1}[/tex].

Given that triangle RST is isosceles, find the value of x.

Answers

Answer:

x = 10

Step-by-step explanation:

RST is an isosceles triangle.

[tex]m\angle T = m \angle R\\\\

8x\degree = (3x + 50)\degree \\\\

8x = 3x + 50\\\\

8x - 3x = 50\\\|

5x = 50\\\\

x = \frac{50}{5} \\ \\ x = 10[/tex]

Jerry borrowed $400 for 5 years at 6% simple interest rate. What will the value of Jerry’s account be after 5 years

Answers

Answer:

here's the answers...,........

Melissa ran at a constant speed of 509.056 meters in 62.08 seconds. How far did Melissa run in one second?

Answers

Answer:

8.2

Step-by-step explanation:

509.056/62.08

what is
4.1 - 1.25 over 0.005


Answers

Answer:

Step-by-step explanation:

4.1-1.25=2.85

lets divide

2.85/0.005=570

Answer:

2.85/0.005=570

Step-by-step explanation:

Hope this helped have an amazing day!

PLEASE HELP ILL GIVE BRAINLIEST I JUST NEED THE ANSWER

Answers

Check yes for: (2,0) (-2,1) (0,3) (0,-1) (3,2)

Answer:

WHATT IS THIS MATH IT LOOKS SO HARD:0

Question 4 HELPPPPPPPPPPPPP

Answers

The opposite of 4 is -4 :/

Answer:

-4

Step-by-step explanation:

correct have a nice day

Noya needs to determine the number of books that will fit into a box. If the box has a length of 18 inches and each book is StartFraction 2 Over 9 EndFraction of an inch thick, which expression can be used to determine the number of books that will fit into the box? 18 2/9 18 times 2/9 2/9 divided by 18 9/2 divided by 18

Answers

Answer:

A. 18÷2/9

Step-by-step explanation:

A. 18÷2/9

B. 18×2/9

C. 2/9÷18

D. 9/2÷18

Let

Total length of box = 18 inches

Thickness of each book = 2/9 inches

Number of books that will fit into the box = x

Number of books that will fit into the box = Total length of box ÷ Thickness of each book

x = 18 ÷ 2/9

= 18 × 9/2

= 162/2

= 81 books

The correct answer is A. 18÷2/9

Hector has 10 cups of flour. Which equation shows how to determine the number of Two-fifths of a cup servings there are in the 10 cups of flour?

Answers

Answer:

10 divided by two fifths = 25


Which of the following would earn the same amount of interest as a $600 principal with 2.5%
interest for 6 years?

Answers

Answer:$225 at 10% for 4 years and $80 at 75% for 18 months

Step-by-step explanation:

The required interest earned is given as $90, as of the given condition.

Given that,
Principal = $600
Rate = 2.5% and time = 6 years

What is simple interest?

Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan.

Here,
Simple interest = principal × rate × time /100
Simple interest = 600× 2.5× 6 /100
Simple interest = 90

Thus, the required interest earned is given as $90, as of the given condition.

Learn more about simple interests here:

https://brainly.com/question/26457073

#SPJ5

Please help me please!!

Answers

Answer:

(2) f(-2) = 3

Step-by-step explanation:

[tex]f(n)=(n-1)^2+3n[/tex][tex]f(-2)=(-2-1)^2+3(-2)[/tex][tex]f(-2)=(-3)^2+(-6)[/tex][tex]f(-2)=9-6[/tex][tex]f(-2)=3[/tex]

O
f(x) = 4x −2+ 7x
1) f(8) =
2) f(-5) =
3) f(0) =

Answers

f(8)=4(8)-2+7(8)
f(8)=32-2+56
f(8)=86

f(-5)=4(-5)-2+7(-5)
f(-5)=-20-2+2
f(-5)=20

f(0)=4(0)-2+7(0)
f(0)=0-2+0
f(0)=-2

How do you find the rule using this tile pattern and this graph

(need desperate help so I’ll add you as brainliest)

Answers

Answer:

I wish you the best dont let people brign you down sending love

Step-by-step explanation:

Middle School has 700 students. 70% of its students are remote
learners. How many students are remote learners?

Answers

Answer:

490 students are remote learners

Step-by-step explanation:

Answer:

490

Step-by-step explanation:

hope this helps

have a nice day!

:)

Brandon and his friend Ben combined their allowance of $15 each, so they could buy a movie for $20. They bought a bag of popcorn to share for $2. Then they bought bags of candy with the remaining money and split the bags evenly between them. The candy cost $1 each.

Answers

They can get 8 pieces of candy

Answer:

Hahaha hahaha hahaha hahaha

Harry predicts that if he can cycle 5 miles in 1 hour, he can travel 20 miles in 4 hours. What do you think might be a problem with this prediction? Do you think that Harry can travel at the same speed for 4 straight hours? Why or why not? Write your answer in two to three sentences.

Answers

Answer:

no cycling for thatc long would cause you to be tired and will slow you down my personal opinon it would be 7 hours

Please help faster all these three correct yes or no answer only if you know or I will report you I would like an expert or above to clarify for me thank you! Brainlist

Answers

Answer:

Yes, they are all correct.

24/514.8
I really need help on this question please help me
I'm begging thanks :)

Answers

Answer:

the answer is .04634994206

Let $n$ be the smallest composite number such that it can be written as the product of two positive integers that differ by 10?

Answers

Answer:

The smallest composite number for [tex]n[/tex] is 24, which is the product 2 and 12.

Step-by-step explanation:

A composite number is an integer that is not a prime number, that is, a number that can be divided only by one and itself. Let be [tex]n[/tex] the smallest composite number such that there are two positive integers [tex]x[/tex], [tex]y[/tex] such that [tex]x - y = 10[/tex] and [tex]x\cdot y = n[/tex]. [tex]n[/tex] is a positive integer, since both integers are positive. Then, we can use the following formula:

[tex](y+10)\cdot y = n[/tex]

[tex]y^{2}+10\cdot y = n[/tex]

[tex]y^{2}+10\cdot y - n = 0[/tex] (1)

We obtain the roots of this second order polynomial by means of the Quadratic Formula:

[tex]y = \frac{-10\pm \sqrt{10^{2}-4\cdot (1)\cdot (-n)}}{2}[/tex]

[tex]y = -5\pm \sqrt{25+n}[/tex] (2)

Given that [tex]y > 0[/tex], we must observe the following inequation:

[tex]-5\pm \sqrt{25+n}>0[/tex] (3)

[tex]\sqrt{25+n} > 5[/tex]

[tex]25 + n > 25[/tex]

[tex]n > 0[/tex]

Let is find the values of x and y by iterative means:

x = 11, y = 1

[tex](11)\cdot (1) = 11[/tex]

11 is not a composite number, but a prime number.

x = 12, y = 2

[tex](12)\cdot (2) = 24[/tex]

24 is a composite number, which contains the following product of prime numbers:

[tex]2^{3}\cdot 3 = 24[/tex]

The smallest composite number for [tex]n[/tex] is 24, which is the product 2 and 12.

I need help with this geometry problem please​

Answers

Answer:

A. 29

Step-by-step explanation:

Set 5x - 11 = to 3x + 5, and then solve for X, and substitute the x value (8) back into the equation to get 29.

~theLocoCoco

The answer for A. Is 29 sorry for late responses

3[ 2(10-5) +5(6-5) ] =

Answers

The answer is 45 (explained down at the image).

Answer:

45

Step-by-step explanation:

What you wanna do is just simplify the equation as much as possible:

First, the inner parenthesis:

2(10-5)=20-10=10

5(6-5)=30-25=5

And then we have:

3(10+5)=

Just simplify! :)

30+15=45

45

Juan hires an electrician.
Juan pays a one-time fee of $30.
Juan also pays $45 for each hour the electrician works.
Write a function that can be used to find the total charge, c, Juan will pay when the electrician works,h, works

Answers

Answer:

c = 45h + 30

Step-by-step explanation

Hi! You know that you are trying to find the value of c, so you are going to set that as what would be your y value.

Now you know that you have to pay $30 as a fee no matter what, so you need to make sure that there is $30 attached to the equation without it being multiplied by anything.

Next, you know that it is $45 per hour, so you are going to multiply 45*h, where h is the number of hours the electrician works.

Hope this helps!

50 POINTS PLUS BRAINLIEST

Answers

Answer:

New depth: 11.8 feet

Step-by-step explanation:

0.4 x 3 = 1.2 feet / 1.2 feet in 3 seconds

13 - 1.2 = 11.8

Hope this helps!

xoxo,

cafeology

Answer:

43.5 ft below the surface

Step-by-step explanation:

0.5*5= 2.5

-46+2.5= -43.5

=
105 min
game
?hr.
game
Help please

Answers

Answer:

105 minutes= 1 hour and 45 minutes

Answer:

1 hour and 45 minutes

or

1.75 hours

A company produces fruity drinks that contain a percentage of real fruit juice. Drink A contains 20% real fruit juice and Drink B contains 15% real fruit juice. The company used 100.5 liters of real fruit juice to make 30 more liters of Drink A than liters of Drink B. Write a system of equations that could be used to determine the number of liters of Drink A made and the number of liters of Drink B made. Define the variables that you use to write the system.

Answers

Answer:

There needs to be 300 liters of Drink A and 270 liters of Drink B

Step-by-step explanation:

Let a = the amount of Drink A and b = the amount of Drink B

Multiplying a number by 0.2 is the same as calculating 20% of it and same goes with 15% and 0.15. This makes our equation for the amount of fruit juice:

0.2a + 0.15b = 100.5

We know what the difference between a and b will be 30 liters so:

a - b = 30

Now we have our system of equations

To cancel out a, we can multiply the first equation by -5 so we will now have:

-a - 0.75b = -502.5

a - b = 30

Adding these two equations together, we get:

-1.75b = -472.5

Both sides are negative, so we can take the negative signs away.

1.75b = 472.5

Now divide both sides by 1.75

b = 270

Plugging 270 into b, we have:

a - b = 30

a - 270 = 30

Add 270 to both sides

a = 300

There needs to be 300 liters of Drink A and 270 liters of Drink B

The system of linear equations which could be used to find the amount in litres of drinks A and B are :

(0.2a + 0.15b) = 100.5a - b = 30

Let :

Amount of drink A = a

Amount of drink B = b

Percentage of real fruit juice for drink A = 20%

Percentage of real fruit juice for drink B = 15%

Total litres made = 100.5

(Amount of drink A × percentage) + (Amount of drink B × percentage) = Total litres

(0.2a + 0.15b) = 100.5 - - - - - (1)

The difference between the amount of drink A and B made :

Drink A is 30 liters more than B :

a - b = 30 - - - - - (2)

The system of equations required to determine the amount of drink A and B made are :

(0.2a + 0.15b) = 100.5a - b = 30

Learn more : https://brainly.com/question/20379472?referrer=searchResults

A Census Bureau report on the income of Americans says that with 90% confidence the mean income of all US households in a recent year was $57,005 with a margin of error of $742. This means that

Answers

Answer: d. the census bureau got the result 57,005 plus or minus 742 using a method that will capture the true median income 90% of the time when used repeatedly.

Step-by-step explanation:

No t-value has been included in this interval so it cannot be correctly labeled a confidence interval.

This invalidates options a to c.

Option d is therefore the correct answer because it states that the census bureau simply got those results above without claiming that the results constituted a confidence interval.

please help meeeeeeeeeee

Answers

Answer:

x=-5

Step-by-step explanation:

If f(x)=0, then x=-5

Drawing the line y=0 shows this visually


through: (4, -5), perp. to y =2/3x – 3

Answers

Answer:

y=-3/2x+11

Step-by-step explanation:

M a t h w a y

The Awnser is Y=-3/2x+11
Other Questions
help lol! the explanation is on the bottom!! 2H2O21. Number of hydrogen atoms in chemical formula 1. 1. What is believed to be the first kingdom of South Africa? O Mapungubwe O Rapta O KilwaO Zambabwe is this set of ordered pairs of a function? (1,1) (2,3) (3,4) (4,2) (5,1) Two angles of a triangle measure 55 and 20.What is the measure of the third angle of the triangle?A. 159B. 90O C. 1050D. 2859HELP Select the correct answer. Which image shows the correct position of on the number line? Which image shows the correct position of -2 1/2 on the number line? A. A B. B C. C D. D The voltage between two points in a circuit is 3.6 V. If the resistance betweenthe points is 75 , what is the current, according to Ohm's law?A. 76.6 AB. 0.048 AC. 20.8 AD. 270 ACorrect answer is B! A sample is in the second half-life. What percent of the sample is stable at this point? A. 12.5%B. 25% C. 50% D. 75% Select all the correct answers.Which three behaviors are a reflection of a healthy relatioiliship?-Roma and Rajiv enjoy each other's company as well as spending time with friends.-Mark always insists his wife wear clothes that he buys.-Hans and Elaine do not hide anything from each other.-Hana does not mind that Carlos spends time with his family every month.-Diane often humiliates John in the presence of her friends. Read the excerpt from "The Legacy of Billy Mason."Outside, the windmill continued its eerie creaking and moaning, and the light of the moon scarcely penetrated the dirt on the glass in the only window in the bedroom. Lying there in the darkness, Billy looked at the door again and again. What was behind it? Did it hide some awful secret? Did something monstrous lurk there? Then suddenly, as he watched, the door slowly opened, and as it opened, he saw his own name glowing in the darkness: Billy Mason.What can the mood of the excerpt best be described as?tragiclightheartednostalgicmysterious Solve the equation.y + 6 = 3y + 26y = 8y = 5y = 5y = 8 What skill components are involved in basketball or dance plssss help meee for p.e class Help!! 10 pts and brainliest! At what point does the row and column shaded in Problem 5 intersect?Need the answer too 6 Which tier do ecologist studying when looking at communities of different speciesinteracting with each other and the abiotic factors of their environment?ecosystembiomeObiospherecommunity How do you factor x^2+8x-5=4? 3. Which of the following is an example of a powerful action taken by the United Nations (UN)?A. Setting aside lands in Palestine for Jewish people and declaring it a nationB. Ending the Cold War with a truceC. Preventing the United States and its allies from invading VietnamD. Declaring war on the USSR What category do you think humans fall into? Explain your reasoning.reproduction wise. Can you please help me with this? In addition to making speeches and printing newspapers, many abolitionistsa.wrote petitions asking Congress to outlaw slavery.b.organized armed rebellions in Southern states.c.bought enslaved people in order to set them free.d.taught young African American children in schools.