## Introductory Algebra for College Students (7th Edition)

This problem is asking for us to find the speed $A$ given the Mach number. We can plug in the value given for $A$ into the equation $M = \frac{A}{740}$ to find the speed of this aircraft. We plug in $3.3$ for $M$: $$3.3 = \frac{A}{740}$$ To isolate $A$, we multiply both sides of the equation by $740$ to get rid of the fraction: $$A = (3.3)(740)$$ We now multiply to get the value for $A$: $A =$ 2,442 miles per hour