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If Anna and Tamara's travel time between Bonita Springs and Northville is 5x - 10,

what is the travel time between the two when x = 45? (time is in minutes)
Minutes

User Zhen Sun
by
7.4k points

2 Answers

7 votes

Answer \frac{sin40^{\circ}}{x} = \frac{sin60^{\circ}}{12}

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

\frac{sin40^{\circ}}{x} = \frac{sin60^{\circ}}{12}

which is the required equation for finding the value of x,

\frac{x}{sin40^{\circ}}= \frac{12}{sin60^{\circ}}

x= 12\times \frac{sin40^{\circ}}{sin60^{\circ}}

x= 12\times 0.74222719896

x= 8.90672638762\approx 8.967

User Artem Shmatkov
by
7.0k points
1 vote

Answer:

=215

Step-by-step explanation:

5x-10 subsitute 45 for X

=5(45)-10

simplify

=225-10

=215

User Pedro Manfredi
by
6.7k points