Monday

March 30, 2015

March 30, 2015

Posted by **Russell** on Wednesday, August 15, 2007 at 10:05pm.

Would you first subtract 4.8 from 19.2 then subtract 10 ^ 9 from 10 ^20

Leaving an answer of

14.4 x 10^11????

you are using the word "over", which implies division.

Why would you even consider subraction

(19.2 x 10 ^ 20) over (4.8 x 10 ^ 9)

=(19.2 x 10 ^ 20) ÷ (4.8 x 10 ^ 9)

= 19.2/4.8 * 10^20 / 10^9

= 4 * 10^11

Perhaps you were thinking of the procedure of dividing powers with the same base, where you

Thank you!!!! My mind is going blah.......first you divide number but then you just subtract then when you divide......this can be confusing, but I get it now :)

Thank you again!

**Answer this Question**

**Related Questions**

Math 8R - Help!!!!!!!!!!!!!!!!!!! - 14. Subtract -5 from -14 -14 - (-5) 16. ...

Math - if I was doing algebra and it was 3/5a - (-4)=5 would I first subtract 4 ...

Algebra - I am re posting this for fear that it was overlooked earlier. I have ...

Math, Please Help! - Ned divided a given number by 3 and then added 2. If he ...

algebra - how do I solve 3/8x+5=25 First subtract 5 from both sides. first you ...

Algebra - Hello all! I had a quick homework question: I have to prove that the ...

math ( subtracting fractions) - 12 1/4- 4 1/8 When you add or subtract fractions...

math - Match the equation with the step needed to solve it. 1. 2m - 1 = 3m ...

math - Match the equation with the step needed to solve it. 1. 2m - 1 = 3m ...

Math - I have a problem..... -4(2x-3)=-8x+5 I understand first you distribute ...