Answer:
The similar shortcut for division works because division is the opposite operation of multiplication—it “undoes” multiplication. If we move the decimal point to the right when multiplying by 10, 100, 1000 and so on, then it is quite natural that the rule for division would work the “opposite” way.
Step-by-step explanation:
$495.28 I think I'm not sure if I'm right.
I'll just do red for now, but if you're very desperate I guess I'll help with a few more lol. It's just a lot of typing and my computer is at 6% :)
RATIO:
Ratios are another way of comparing things. It's almost like a fraction, except that it can look like x:y.
I'm guessing you're comparing all of the reds to the total amount, which should be 39. Put 5 in for x and 39 for y to make it look like 5:39.
DECIMAL:
Oh decimals are so fun...
Just divide 39 by 5. The answer to red's decimal is 7.8.
PERCENTAGE:
Percentage can come a little bit confusing to some people, so I'll explain this the best I can.
Basically, all you have to do to find it is divide the number you're making into a percentage by the total amount, then multiply it.
5/39 x 100
0.1282051282 x 100
12.8205128205
I'm going to the nearest hundredth which is 12.82.
Your percentage is %12.82
(If you're rounding to the nearest whole number, it'll be %13)
THEORETICAL:
For this simplify your ratio. 5/39 cannot simplify, so just leave it as 3/39.
Sorry, sometimes I come out a little confusing, so just try not to think too hard about what I'm trying to say if you're confused more lol. Anyway my computer is going to die so I'll go now :)
Answer:
<em>×</em><em>=</em><em>5</em><em>0</em><em>,</em><em>×</em><em>+</em><em>0</em><em>9</em><em>+</em><em>6</em><em>7</em><em>3</em><em>-23</em>
<em>×</em><em>=</em><em>(</em><em>3</em><em>3</em><em>)</em><em>+</em><em>(</em><em>2</em><em>×</em><em>)</em>
