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
1 answer:
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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