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68 paramecia are found in an area measuring 2 cm x 3 cm. _____ paramecia/cm2 *

Sagot :

dannhi
So the area is 2x3 cm with 68 paramecia.

Not sure if this is the best way to do it, but I’d do 68/2*3 (68 divided by (2 times 3))

So first 2*3 is 6cm.

Now you’re trying to find paramecia/cm2. You are trying to find a unit rate. That is a value over one.

Then because there are 68p and 6cm, to find the unit rate, you’d do 68/6.

Now you have your unit rate, which is 11.3 repeating, or 11 1/3 as a fraction.

That would be 11.3 (11 1/3) paramecia per cm2

also I’m not 100% sure if this is correct, just wanted to help, so no guarantees
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