Answer:
Henry baked 48 rolls.
Step-by-step explanation:
We are given the following information in the question:
Total number of rolls and fruit muffins baked = 84
Number of rolls given = 18
After giving away 18 rolls there are [tex]\frac{5}{6}[/tex] as many rolls as muffins.
Let x be the number of rolls and y be the number of fruit muffins.
Then, we can write the following equations:
[tex]x + y =84\\(x-18) = \displaystyle\frac{5}{6}y[/tex]
We have two equations in two variables. Solving the two equations, we have:
[tex]y =84-x\\(x-18) = \displaystyle\frac{5}{6}(84-x)\\\Rightarrow 6x - 108 = 420 - 5x\\\Rightarrow 11x = 528\\\rightarrow x = 48\\y = 84-48 = 36[/tex]
Thus, Henry baked 48 rolls and 36 fruit muffins.