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Bossvideogamer21
 one year ago
do i cross cancel using division?
Bossvideogamer21
 one year ago
do i cross cancel using division?

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Bossvideogamer21
 one year ago
Best ResponseYou've already chosen the best response.1here is the problem: Scientists can estimate the amount of bacteria in a refrigerated food by using the formula 0.2b=T^2/20 where b is the number of bacteria and t is the number of seconds. What is the approximate time a food was in the refrigerator if there are 625 bacteria?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1\(0.2 \times 625 = T^2/ 20 \\ \implies T^2 = 0.2 \times 625 \times 20 = ....\)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1so in which step you had that doubt?

Bossvideogamer21
 one year ago
Best ResponseYou've already chosen the best response.1i did everthing right except setting up the problem

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1so we just plug in b = 625 in the given formula and multiply both sides by 20

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1to eliminate the fraction (division by 20) on right

Bossvideogamer21
 one year ago
Best ResponseYou've already chosen the best response.1i got everything except the divide by 20 part

Bossvideogamer21
 one year ago
Best ResponseYou've already chosen the best response.1so is this right : in seconds the answer is 2,500 and in minutes the answer is 41.6

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1T^2 is 2500 so T = 50 seconds :)
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