shiaaschwenen6m shiaaschwenen6m

07-01-2017
Mathematics

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45% of the beads in a box are blue. if there are 36 blue beads in the box, how many beads are there altogether ?

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AmplifiedHuman AmplifiedHuman

07-01-2017

36÷0.45=80
There are 80 beads altogether

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ka1eighmae ka1eighmae

07-01-2017

Breaking down the numbers shows that if 45% is 36 beads, then 5% is 4 beads (divide by 9). Then multiply 5% by 20 (to get 100%) and 4 beads by 20 (distributive property) to have 80 beads.

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