Ineed answer ! timed !

what is the formula to find the original amount

first thing you have to do is consider the unknown original amount as ‘x’.

next, consider the percent rate of increase or decrease

to find the increase or decrease, you must multiply the rate by the original amount ‘x’.

to find the final amount, add or subtract the increase or decrease to the original amount ‘x’ and equate this to given final amount.

solve the equation and find the original amount of ‘x’.

example:

step 1:

after a 25% increase, a couch was $750. find the original price

first asociate numbers with letters,   the original amount be = x

percent increase = 25%

step 2:

increase in price = 25% of x = 0.25 × x = 0.25x

final amount would be = original amount + increase = x + 0.25x = 1.25x

step 3:

final amount = $750 = 1.25x

solving for ‘x’:

x = 750/ 1.25 = $600

this, the original price was $600

hope this ! : )

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.