MollyAE
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batteries are sold in packets and boxes. There are 4 batteries in a pack. There are 20 batteries in a box. Derek buys box of batteries he takes T batteries out of the box write down an expression in terms of T for the number of battery is left in the box.

batteries are sold in packets and boxes There are 4 batteries in a pack There are 20 batteries in a box Derek buys box of batteries he takes T batteries out of class=

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ankita
20*4-t=x is the equation according to me. 
forgive me if it is wrong
PeytonBrainly
An equation to represent this problem is:
20(4)-t = x

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