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3 years ago

Which of these proportions is equivalent to the equation 2+1/b-2 = 3b/b+2 ?

Mathematics

2 answers:

Leokris [45]3 years ago

7 0

The answer could be 2b+3/b-2=3b/+2

neonofarm [45]3 years ago

7 0

2 + 1/(b-2) = 3b/(b+2)
(2b-4+1)/(b-2) = 3b/(b+2)
(2b-3)/(b-2)= 3b/(b+2)

answer is C.) 2b-3/b-2 = 3b/b+2

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kelly is using a bucket to fill up a barrel with water from a well. The barrel holds 25.5 liters.the bucket holds 800 millileter

SVEN [57.7K]

To determine how much of the barrel is left to fill, you must subtract the amount of water already in it from the total mass of the bucket.

25.5 - 5.2 = 20.3 Litres

In order to the fill the entire barrel, Kelly must collect 20.3 Litres of water. You must then covert the measurement from litres to millilitres so that the bucket and barrel are measured in the same units.

20.3L = 20300mL

You must then divide the amount of space left by the mass of the bucket. This will determine the least number of buckets needed to fill the barrel.

20300 ÷ 800 = 25.375

That means the you would have to do a minimum on 25.375 buckets to fill the barrel, or 26.

Hope this helps :)

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3 years ago

The Royal Fruit Company produces two types of fruit drinks. The first type is 55% pure fruit juice, and the second type is 80% p

Stolb23 [73]

Answer:

First type of fruit drinks: 48 pints

Second type of fruit drinks: 32 pints

Step-by-step explanation:

Let's call A the amount of first type of fruit drinks. 55% pure fruit juice

Let's call B the amount of second type of fruit drinks. 80% pure fruit juice

The resulting mixture should have 65% pure fruit juice and 80 pints.

Then we know that the total amount of mixture will be:

$A + B = 80$

Then the total amount of pure fruit juice in the mixture will be:

$0.55A + 0.8B = 0.65 * 80$

$0.55A + 0.8B = 52$

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -0.8 and add it to the second equation:

$-0.8A -0.8B = -0.8*80$

$-0.8A -0.8B = -64$

$0.55A + 0.8B = 52$

--------------------------------------

$-0.25A = -12$

$A = \frac{-12}{-0.25}$

$A = 48\ pints$

We substitute the value of A into one of the two equations and solve for B.

$48 + B = 80$

$B = 32\ pints$

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3 years ago

Chi chi can hit The golf ball 72 yards. Rory Can hit a golf ball 24 yards. How many times further can Chi chi hit a golf ball th

ivanzaharov [21]

Answer:

Chi chi canhit a golf ball three times further than Rory.

Step-by-step explanation:

To compare the distance between the two golfers, we can set up a ratio:

$\frac{Chi chi Distance}{Rory Distance} = \frac{72}{24} =\frac{3}{1}$

Since the distance that Chi chi can hit the ball is 3:1 the distance that Rory can hit the ball, than Chi chi can hit the golf ball three times further. When reducing a ratio or fraction to lowest terms, you need to divide the numerator and the denominator by the same factor. Since 72 can be evenly divided by 24, we can divide both the numerator and the denominator by 24 to get 3:1.

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3 years ago

Problem The gift shop at a science museum sells lollipops that are made to look like the planets. Each lollipop is shaped like a

Gre4nikov [31]

The volume is about 7234.56 cubic mm.

I assume the radius is 12 mm, it must have been repeated accidentally.

To find the volume of a sphere, we cube the radius, multiply by pi and finally multiply by 4/3.

We are the steps:

(12^3) = 1728 x pi (3.14) = 5425.92 x (4/3) = 7234.56

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3 years ago

Read 2 more answers

Graph y=2x+4 how do i solve this i really need help

chubhunter [2.5K]

Y-int (0,4) because y=Mx+b, b is y-int
Slope is 2 means that the pattern of the graph is 2/1 up 2 over 1

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3 years ago