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I think guest meant to write    :

300 - (20/100)* 300  =

300 - (1/5) * 300  =

300 - 60   =

$240

The ratios  of the sides in this triangle in this triangle are as follows:

1, sqrt(3), 2

If 30 cm is the shortest side [ shortest leg] ......the next shortest side [ the longer leg] would be 30* sqrt(3)   and the hypotenuse would be 60

If 30 cm is the longest leg.....then the shorter leg = 30/sqrt(3)  = 30sqrt(3)/3  = 10 sqrt(3)   and the hypotenuse would be  30*2/sqrt(3) = 60/sqrt(3)  = (60/3)sqrt(3)  =   20 sqrt (3)

So..... 10sqrt(3),  20sqrt(3) and 30sqrt(3) are all possible, but 60 sqrt(3) is not

make r the subject of the formula: A=Pier^2

A=Pi.r^2

r^2=A/Pi take the sqrt of both sides

r=sqrt(A/Pi)

a 300 suit is marked down buy 20%find the sale price round to the nearest dollar

300 - (20/100)=$240 sale price of the suit after 20% discount.

Wait who told you I moved? (Oh yeah I just forgot you're the future me and appearently you know EVERYTHING about me)

i moved....to Denver!!! (Not a good place)

i mean eat it's nice and all, but for all people who know your football geography knowledge, I'm surrounded by many Bronco fans (and I'm a Seahawks fan) 

besides that I'm fine

so, what's up with future me?

Divide both sides by 2 and that is it!.

Go online and use this fractions calculator:

http://www.calculatorsoup.com/calculators/math/fractions.php

Will bought 14 feet of rope for $10.50. What does the rope cost, per foot?

10.5/14=$.75 or .75 cents the cost of rope per foot.

Yea you right but you get it on °F but i need on °C so i put it into °C=5/9(°F-32) and get (A)

Zeke drove 346 miles in 8 hours. What is his average rate of speed (mph)?

346 miles / 8 hours=43.25 mph-average rate of speed.

If hot dogs are sold in packages of 10 and buns are sold in packages of 8, how many packages of each would you need to buy to get an equal number of each?

10= 2 X 5

8 =2 X 2 X 2

The LCM of 8 and 10=2 X 2 X 2 X 5=40, therfore you need to buy:

40/10=4 packages of hot dogs, and

40/8 =5 packages of buns.

The sample STARTS at 20 degrees so the temperature is  20 + ?

Every hour it warms up an ADDITIONAL   3 degrees  so the temperature after  't' hours will be INCREASED  3 x t

It STARTED at 20 degrees    so  add both of the terms together to get the temperature of the sample  20 + (3 x t)

or  20 + 3t     Rewritten :  3t + 20

Now I re-read the question: it asks for Celcius

Convert to Celcius   5/9 (3t +20) -32 )

15/9t - 60/9

5/3t - 20/3

So YOU were RIGHT !   I was WRONG....sorry....I misread the question!!!

ANOTHER way of looking at it... You have to ADD .01 to .09 to get to 0.1

Why (E) ?

Jasira doesn’t understand why 0.1 is larger than 0.09.

Tell Jasira to divide .1/.09 and see what she gets. If the result is greater than 1, then that means it is greater. Do the reverse and see. Another simpler way of seeing it is to multiply both numbers by a 100 =.1 X 100=10, while .09 X 100=9. Now, can you see which is bigger?

E     E   E   EE   EEEE   E   'E'

The Tough 'n Tender Beef Restaurant marks up all dinners 32% on selling price. If the markup on barbecue ribs is $3.48, how much is the menu price

Let the price of Barbecue Ribs=R, then we  have:

1.32R - R=$3.48

.32R=$3.48 divide both sides by .32

R=$3.48/.32

R=$10.88 The menu penu price.

Tenth is need to one digit after the 0 so the answer need to be 0 :) 

I found the answer (A)

Jennifer receives a commission of 9% of sales. If her gross pay this month was $6,714.00 her sales were

6,714.00/.09=$74,600 Jennifer's sales this month.

It is a big number with 607 digits long.

Here are the last 10 digits of your number, so you can see what the last digit is:8994576385.

It isn't. It is just a huge number.

Too huge for the calculator to deal with. :)