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(9.2x10^6)/(2x10^-5) can u cancel the 10^s to make (9.2/2)x10^11

No, just multiply them & get whaever the answer is, so we have,

(9.2x10^6)/(2x10^-5)=184

Because it's easier to calculate!.

how do i solve for y when the equation is -xy+8=x

y = 8/x-1

A 2 1/2-pound bag of white grapes costs $4.70. A 3 1/4-pound bag of red grapes costs $5.98. Which bag of grapes is a better deal? explain how you determined your answer.

Well, Just divide the total price in each by number of pounds and compare the price of the grapes per pound. Thus we have:

$4.70/2.50=$1.88 price per pound for white grapes.

$5.98/3.25=$1.84 prince per pound for red grapes.

Now, you can see for yourself that the red grapes are slightly cheaper than white grapes.

You do math everywhere

By MathMagician101

x + 7/4=17/8,

x=17/18 - 7/4=34/36 - 63/36=-29/36

So x=- 29/36

What is the  compound interest on a sum of £2500 at a rate of 6% per annum for 3 years?

Well, first you divide the interest rate by 100 and you get .06, then add 1 to it

which becomes 1.06. That's the interest for 1 Pound for 1 year.

But you want the compound interest for 3 years, so we have,

1.06^3 X 2,500P=1.191016 X2,500P=2,977.54 Pounds in 3 years.

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It is 24.

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Your long term health.

hope this helps!

7(9+k) = 84

= 7 x 9 = 63 

= 84 - 63

= 21/7

= 3

= 7(9+3) = 84

if "y" is larger than "x". for example: if x=4 and y=6 then

x-y=-2

Hope this helps!

so the best we can do is simplify this expression.

starting by distributing the fractions to the terms inside the parantheses to get

(5/3)x+(8/3)y+(6/4)x-(2/4)y

now we can simplify a couple of the fractions to get

(5/3)x+(8/3)y+(3/2)x-(1/2)y

now we can combine the x & y terms, lets group them to make it easier to see...

(5/3)x+(3/2)x+(8/3)y-(1/2)y 

now we need to keep in mind that we need a common denominator to add the fractions, so..

(10/6)x+(9/6)x+(16/6)y-(3/6)y

now combine the like terms and we have.

(19/6)x+(13/6)y

Hope this helped!

10

so you want to isolate "x" to one side of the equation

Start by adding "x" to both sides. So you get

(x)+2x+4=-x(+x)-2

combine like terms and you get

3x+4=-2

then subtract 4 from both sides to get

3x(-4)+4=-2(-4)

combine likes to get

3x=-6

finally, divide both sides to get 

(3x)/3=-6/3

simplify to get 

x=-2

Hope this helps!

It is a positive

Example: -3 times -4= 12 

2x+4=-x-2

x=-2+(-4)

x=-6

To haunt our very lives!

10

The first answer is right, except the unit is missing.

It's 5.6 X 10^-5  g

8.5