fiza is mixing antifreeze and water. she has 21 litres of a mixture of antifreeze and water in the ratio 5:2 .

A . how much water would she have to add to get1:1.

B . how much water would she have to add to get 1:2

Answers

Answer 1

9514 1404 393

Answer:

9 liters24 liters

Step-by-step explanation:

The amount of water in the mix is 2/(5+2) = 2/7 of the volume of the mix. That amount is ...

  (2/7)(21 liters) = 6 liters

Then the other 21-6 = 15 liters are antifreeze.

A) To make the mix 1 : 1, 15-6 = 9 liters of water need to be added.

__

B) To make the mix 1 : 2, The total amount of water needs to be brought to 30 liters. 15 more liters need to be added for a total of 24 added liters of water.

Answer 2

Answer:

Step-by-step explanation:

The family’s leaders have pulled off three of the great marketing triumphs of the modern era: The first is selling OxyContin; the second is promoting the Sackler name; and the third is ensuring that, as far as the public is aware, the first and the second have nothing to do with one another.

To the extent that the Sacklers have cultivated a reputation, it’s for being earnest healers, judicious stewards of scientific progress, and connoisseurs of old and beautiful things. Few are aware that during the crucial period of OxyContin’s development and promotion, Sackler family members actively led Purdue’s day-to-day affairs, filling the majority of its board slots and supplying top executives. By any assessment, the family’s leaders have pulled off three of the great marketing triumphs of the modern era: The first is selling OxyContin; the second is promoting the Sackler name; and the third is ensuring that, as far as the public is aware, the first and the second have nothing to do with one another.

If you head north on I-95 through Stamford, Connecticut, you will spot, on the left, a giant misshapen glass cube. Along the building’s top edge, white lettering spells out ONE STAMFORD FORUM. No markings visible from the highway indicate the presence of the building’s owner and chief occupant, Purdue Pharma.

Originally known as Purdue Frederick, the first iteration of the company was founded in 1892 on New York’s Lower East Side as a peddler of patent medicines. For decades, it sustained itself with sales of Gray’s Glycerine Tonic, a sherry-based liquid of “broad application” marketed as a remedy for everything from anemia to tuberculosis. The company was purchased in 1952 by Arthur Sackler, thirty-nine, and was run by his brothers, Mortimer, thirty- six, and Raymond, thirty-two. The Sackler brothers came from a family of Jewish immigrants in Flatbush, Brooklyn. Arthur was a headstrong and ambitious provider, setting the tone—and often choosing the path—for his younger brothers. After attending medical school on Arthur’s dime, Mortimer and Raymond followed him to jobs at the Creedmoor psychiatric hospital in Queens. There, they coauthored more than one hundred studies on the biochemical roots of mental illness. The brothers’ research was promising—they were among the first to identify a link between psychosis and the hormone cortisone—but their findings were mostly ignored by their professional peers, who, in keeping with the era, favored a Freudian model of mental illness.

Concurrent with his psychiatric work, Arthur Sackler made his name in pharmaceutical advertising, which at the time consisted al


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Answer: The approximate probability that exactly two of the five are blue is 0.3641

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Step-by-step explanation:

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Hey there!

So the first angle is a complementary angle, meaning that two angles put together will equal 90 degrees. Since we already know that one angle is 75 degrees, all we need to do is 90-75 and we get 15 degrees, which is the value of the missing angle.

The second angle is a supplementary angle, which means two angles equal 180 degrees. Since we know that one angle is 121 degrees, we can take that and subtract is from 180 degrees to get 59 degrees, which is the value of the missing angle.

Remember:

A complementary angle is made of up TWO angles that add up to 90 degrees.

A supplementary angle is made up of TWO angles that add up to 180 degrees.

I hope this helped!!!

a board game is designed for ages 12 and up Write the inequality that represents the problem situation.

Answers

Answer:

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Someone plz help me

Answers

Answer:

jayden is 11.

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hope this helps

Step-by-step explanation:

Answer:

11? im positive its 11

Step-by-step explanation:

-30 cause hes 30 years younger than his mom

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I need help please!!!!​

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Answer:

c - 8.9

Step-by-step explanation:

2.3^2+ 8.6^2

✓79.25

8.9

TV has a listed price of 623.98 if the sales tax rate is 8.5 find the total cost of the TV with the sales tax included​

Answers

Answer:

$677.02

Step-by-step explanation:

623.98 increase 8.5% =

623.98 × (1 + 8.5%) = 623.98 × (1 + 0.085) = 677.0183

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An airplane moves at a constant speed of 120 miles per hour for 3 hours. How far does it go?

Answers

Answer:

360 miles

Step-by-step explanation:

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A recent survey suggests that 47% of all televisions are connected to the internet, 32% are voice controlled, and 22% are both connected to the internet and voice controlled. Suppose a television is selected at random and it is voice controlled. What is the probability that a randomly selected voice-controlled television is also connected to the internet?

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Answers

It suppose to be 0.47

The probability that a randomly selected voice-controlled television is also connected to the internet is 0.69.

Option C is correct.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

let P(V) is the probability of selecting a voice controlled television

and, P(I) is the probability that a selected television is connected to the internet.

So, the probability that a randomly selected voice-controlled television is also connected to the internet

P(I|V) = P(I ∩ V)/P(V)

P( I ∩ V) = 22%

P(V) = 32%

So, P(I|V) = 22%/32% = 0.6875

Learn more about Probability here:

https://brainly.com/question/20145085

#SPJ7

Find the curved surface area of the spheres whose radius r = 3.5cm

Answers

Answer:

        154 cm²    

Step-by-step explanation:

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Answer:

It's the chemical because they have to work with dangerous stuff.

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Answer:

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Step-by-step explanation:

Answer:

0.5

Step-by-step explanation:

3-2/0-2= 0.5

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Answer:

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A band teacher ordered T-shirts for the marching band members. T-shirts cost $15 each, including tax, plus a one-time shipping fee of $10 for the order. The teacher paid a total of $370 for the T-shirts .How many T-shirts did the teacher order?


A. 15
B. 16
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D. 25

Answers

Answer:

C

Step-by-step explanation:

$370 - $10 = $360

$360 / $15 = 24

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

Yes

Step-by-step explanation:

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Answer:

Yaa

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Frank invests $1,000 in simple interest investment account that pays 8% a year. After a number of years, he withdraws his balance of $2,200. Using the formula I = P r t, how many years was his money invested? Work backwards-but find the Interest first!

Answers

Answer:

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Step-by-step explanation:

Given data

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Step-by-step explanation:

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Answers

Answer:

-2+4x+5x^2

Step-by-step explanation:

add together what can be added together

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Answers

Answer:

[tex] \huge \purple {\frac{2 \sqrt[3]{6} + \sqrt[3]{18} }{ 6} }[/tex]

Step-by-step Explanation:

[tex] \huge \frac{2 + \sqrt[3]{3} }{ \sqrt[3]{6} } \\ \\ = \huge \frac{(2 + \sqrt[3]{3} )}{ \sqrt[3]{6} } \times \frac{ \sqrt[3]{6} \times \sqrt[3]{6} }{\sqrt[3]{6} \times \sqrt[3]{6}} \\ \\ = \huge \frac{(2 + \sqrt[3]{3} )}{ \sqrt[3]{6} } \times \frac{ \sqrt[3]{6 ^{2} } }{\sqrt[3]{6^{2}} } \\ \\ = \huge \frac{(2 + \sqrt[3]{3} )\sqrt[3]{6} }{ \sqrt[3]{6} \times \sqrt[3]{6 ^{2} }} \\ \\ = \huge \frac{(2 \sqrt[3]{6} + \sqrt[3]{3} \sqrt[3]{6} )}{ \sqrt[3]{6 ^{3} }} \\ \\ = \huge \orange{\frac{2 \sqrt[3]{6} + \sqrt[3]{18} }{ 6} }[/tex]

WILL GIVE BRAINLIEST AND 20 POINTS!
One side of a square room measures 24 ft. How many square yards of carpet are necessary to carpet the room? Hint: 1 yd2 = 9 ft2.
yd2

Answers

Answer:

64 square yards

Step-by-step explanation:

If the room is a square, then all sides of the room should be equal. To find the area of the room, we would need to multiply 2 adjacent sides of the room, meaning 24 x 24 = 576. Since we need yards of carpet, not feet, and we know that 1 square yard is 9 square feet, we divide our total area in feet by 9. This gives us 64sq yards of carpet

what is a scale copie

Answers

A scale copy of a figure is a figure that is geometrically similar to the original figure. This means that the scale copy and the original figure have the same shape but possibly different sizes. ... In real life, a scale copy is often smaller than the original figure.

Answer:

A scale copy of a figure is a figure that is geometrically similar to the original figure.

Step-by-step explanation:


PLEASE HELP THIS IS URGENT !

Complete the table by squaring each negative x-value listed.
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11

Answers

4, 9, 16, 25, 36, 49, 64, 81, 100, 121

a negative times a negative is a positive and squaring those numbers would be multiplying a negative by itself.

For example (-2)*(-2) is 4

**note, this only applies if the negative value is in the parentheses. (-2)^2 is different than -2^2 because with -2^2 only the 2 is getting squared and then you’d have to multiply the negative after**

x                                         x3

-2                     -2^3 = -2 • -2 • -2 = -8

-3                     -3^3 = -3 • -3 • -3 = -27

-4                     -4^3 = -4 • -4 • -4 = -64

-5                     -5^3 = -5 • -5 • -5 = -125

-6                     -6^3 = -6 • -6 • -6 = -216

-7                     -7^3 = -7 • -7 • -7 = -343

-8                     -8^3 = -8 • -8 • -8 = -512

-9                     -9^3 = -9 • -9 • -9 = -729

-10                   -10^3 = -10 • -10 • -10 = -1,000

-11                     -11^3 = -11 • -11 • -11 = -1,331

Answer Straight From Edmentum/Brainly Hope it helps! :)

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