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04-04-2020
Mathematics

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D=h+9 The variable H represents the number of hours worked, and the variable d represents the amount of dough prepared how many hours did Eli work if he prepared 21 kg of dough

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05-04-2020

Answer:

12 hours

Step-by-step explanation:

If we assume that the units of D are kg, then we can put the given number into the equation and solve.

21 = h +9

12 = h . . . . . subtract 9

Eli worked 12 hours to prepare 21 kg of dough.

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