bio_man

Rules regarding FRACTIONS

Rules regarding FRACTIONS

Can anyone explain when to use or how to use this rules that I attached ? I'm having a hard time deciding what to apply

Deckz   289   2 Replies

Deckz

How to simplify: 2√(√x) times 2√ x

How to simplify: 2√(√x) times 2√ x

\(2\sqrt{\sqrt{x}}\cdot 2\sqrt{x}\)

First, we change to fractional exponents:

\(2\left(x^{\frac{1}{2}}\right)^{\frac{1}{2}}\cdot 2\left(x\right)^{\frac{1}{2}}\)

Multiply the 2

bio_man   320   1 Reply

Kevin666

The sum of the digits of a two-digit number is 12. When the digits are reversed, the number is incre

The sum of the digits of a two-digit number is 12. When the digits are reversed, the number is incre

The sum of the digits of a two-digit number is 12. When the digits are reversed, the number is increased by 18. Find the number.

presidente   321   2 Replies

sbear056

The sum of two numbers is twenty-one and their difference is fifteen. What are the numbers?

The sum of two numbers is twenty-one and their difference is fifteen. What are the numbers?

The sum of two numbers is twenty-one and their difference is fifteen. What are the numbers?

presidente   250   1 Reply

bio_man

A chemist has two acid solutions, one that contains 14.0% acid and another with 27.0% acid. How many

A chemist has two acid solutions, one that contains 14.0% acid and another with 27.0% acid. How many

A chemist has two acid solutions, one that contains 14.0% acid and another with 27.0% acid. How many litres of each must be mixed to make 250 litres of solution containing 17.64% acid?

presidente   437   1 Reply

bio_man

A projectile is launched from height ho above the ground. Its height (metres) after t seconds is giv

A projectile is launched from height ho above the ground. Its height (metres) after t seconds is giv

A projectile is launched from height ho above the ground. Its height (metres) after t seconds is given by s = kt^2 + v0t + ho where k is a constant, v0 is the initial velocity. If the height at 1.0 s is 7.75 m and the height at 1.5 s is 6.625 m, and

presidente   280   N/A

presidente

The atomic mass of three compounds are known: methane (CH4) is 16.0, glycerol (C3H8O3) is 91.9, and

The atomic mass of three compounds are known: methane (CH4) is 16.0, glycerol (C3H8O3) is 91.9, and

The atomic mass of three compounds are known: methane (CH4) is 16.0, glycerol (C3H8O3) is 91.9, and water (H2O) is 18.0. Calculate the atomic mass of C, H, and O by solving this linear system:
              C + 4H = 16.0

presidente   274   N/A

presidente

A certain number has three digits and the sum of those digits 12. When the number is divided by the

A certain number has three digits and the sum of those digits 12. When the number is divided by the

A certain number has three digits and the sum of those digits 12. When the number is divided by the number formed by the hundreds and the ones digits, the answer equals 11. In addition, the sum of the hundreds and the tens digits is 10 bigger than th

presidente   238   N/A

presidente

The sum of the digits of a certain three-digit number is nine. The sum of the hundreds and the tens

The sum of the digits of a certain three-digit number is nine. The sum of the hundreds and the tens

The sum of the digits of a certain three-digit number is nine. The sum of the hundreds and the tens digits is equal to the ones digit minus one. The number, divided by nine, equals three times the ones digit. What is the number?

presidente   207   N/A

presidente

A projectile is launched from the ground. Its height (metres) after t seconds is given by s = kt2 +

A projectile is launched from the ground. Its height (metres) after t seconds is given by s = kt2 +

A projectile is launched from the ground. Its height (metres) after t seconds is given by s = kt2 + v0t where k is a constant, v0 is the initial velocity. If the height at 1.0 s is 8.7 m and the height at 1.5 s is 7.625 m, determine the height at tim

presidente   262   N/A

presidente

A horizontal beam of negligible weight is simply supported at each end by columns. When a vertical l

A horizontal beam of negligible weight is simply supported at each end by columns. When a vertical l

A horizontal beam of negligible weight is simply supported at each end by columns. When a vertical load as placed on a beam 1.00 m from the left end, the vertical upward reaction is the right column
is 62.5 N. When the load is increased by 40.0

presidente   224   N/A

presidente

A 10.0 kg mass and a 19.5 kg mass are hung from either end of a bar of negligible weight. If the 10.

A 10.0 kg mass and a 19.5 kg mass are hung from either end of a bar of negligible weight. If the 10.

A 10.0 kg mass and a 19.5 kg mass are hung from either end of a bar of negligible weight. If the 10.0 kg is increased to 12.0 kg, the balance point shifts by 16.2 cm. How long is the bar?

presidente   211   N/A

presidente

Number A divided by number B equals one-fourth. Number B divided by number A equals two times number

Number A divided by number B equals one-fourth. Number B divided by number A equals two times number

Number A divided by number B equals one-fourth. Number B divided by number A equals two times number A. What are the two numbers?

presidente   222   1 Reply

Aliya1

A person invested $5,200, part in bonds bearing 5.9% interest and the remainder in bonds bearing 7.6

A person invested $5,200, part in bonds bearing 5.9% interest and the remainder in bonds bearing 7.6

A person invested $5,200, part in bonds bearing 5.9% interest and the remainder in bonds bearing 7.6% interest. Both investments paid the same amount after the same period of time. How much, to the nearest dollar, was invested in each?

presidente   185   1 Reply

Aliya1

There is a fraction such that if 5 is subtracted from the numerator, its value will be 1/4, and if 7

There is a fraction such that if 5 is subtracted from the numerator, its value will be 1/4, and if 7

There is a fraction such that if 5 is subtracted from the numerator, its value will be 1/4, and if 7 is added to the denominator, its value will be 1/3. What is the fraction?

presidente   170   1 Reply

Aliya1

If the width of a rectangle is increased by 4 and the length increased by 1, the area increases by 6

If the width of a rectangle is increased by 4 and the length increased by 1, the area increases by 6

If the width of a rectangle is increased by 4 and the length increased by 1, the area increases by 62. If instead the width is increased by 2 and the length decreased by 3, the area decreases by 12. Find the original dimensions.

presidente   222   N/A

presidente

The sum of two numbers is 67. The quotient of the greater divided by the smaller number is 7 with re

The sum of two numbers is 67. The quotient of the greater divided by the smaller number is 7 with re

The sum of two numbers is 67. The quotient of the greater divided by the smaller number is 7 with remainder 3. Determine the two numbers.

presidente   193   N/A

presidente

Solving rate problems with fractional equations

Solving rate problems with fractional equations

Crew A can assemble 2 cars in 5 days, and Crew B can assemble 3 cars in 7 days. If both crews together assemble 100 cars, with Crew B working 10 days longer than Crew A, how many days must each crew work?

SIN   175   1 Reply

jdiaz197

Verbal statements to algebraic equations

Verbal statements to algebraic equations

A horizontal uniform beam of negligible weight is 6.35 m long and is supported by columns at either end. A concentrated load of 525 N is applied to the beam. At what distance from one end must this load be located so that the vertical reaction at tha

SIN   162   1 Reply

ccnastopoulos

Rate problems containing fractions

Rate problems containing fractions

A small hydroelectric generating station can produce 61 gigajoules (GJ) of energy per year. After 4.0 months of operation, another generator is added which, by itself, can produce 39 GJ in 5.0 months. How many additional months are needed for a total

SIN   184   1 Reply

shaerovira

Algebra rate problem creating equations then solving

Algebra rate problem creating equations then solving

A train departs at noon travelling at a speed of 64 km/h. A car leaves the same station 1/2 h later to overtake the train, travelling on a road parallel to the track. If the cars speed is 96 km/h, at what time and at what distance from the station wi

Goalchi   173   1 Reply

duddy

Word statement to algebraic expression

Word statement to algebraic expression

How many tons of chromium must be added to 2.50 tons of stainless steel to raise the percent of chromium from 11% to 18%?

Goalchi   153   1 Reply

duddy

Converting verbal statements into algebraic equations

Converting verbal statements into algebraic equations

A person invests part of his $10 000 savings in a bank at 6%, and part in a certificate of deposit at 8%, both simple interest. He gets a total of $750 per year in interest from the two investments. How much is invested at each rate?

How

Goalchi   164   1 Reply

duddy

Whay would the trade discount on a bicicyle thst list for 80.95 if a discoumt rate% is offered round

Whay would the trade discount on a bicicyle thst list for 80.95 if a discoumt rate% is offered round

What would the trade discount on a bicycle that lists for 80.95 if a discount rate of 15% is offered. Rounded to the nearest cent

Benabena1   169   1 Reply

bio_man

The difference of two numbers is 54 and the smaller is to the larger as one is to three.

The difference of two numbers is 54 and the smaller is to the larger as one is to three.

The difference of two numbers is 54 and the smaller is to the larger as one is to three. What are the numbers?

Bandana Kaumar   191   1 Reply

bolbol

Solve the equation for x: (3x−5)/2=(2(x−1))/3+4/1

Solve the equation for x: (3x−5)/2=(2(x−1))/3+4/1

Solve the equation for x:

(3x−5)/2=(2(x−1))/3+4/1

please don't just give me the answer, can you show me how to do it. Thanks

Karamveersingh   227   1 Reply

bolbol

Match Each Equation To Its Equivalent Equation In Slope-Intercept Form

Match Each Equation To Its Equivalent Equation In Slope-Intercept Form

Match each equation to its equivalent equation in slope-intercept form.

1. y + 6 = 3(x + 2)                                          &

mandoguy   227   1 Reply

bio_man

Solve Pascal equation as a function of y

Solve Pascal equation as a function of y

Here is a Pascal equation that yields y as a function of the HighLowRange of the data over a number of days. 

Can you reverse the equation to yield the HighLowRange as a function of y ?

[code]Variable: y(0) ;

y

moonwolf   320   N/A

moonwolf