Answer:
x=7.12
Step-by-step explanation:
This is a trigonometry problem so you would use sin cos or tan. and in this case we need to use sin.
An acronym I use to help me remember is is sohcahtoa
so sin= opposite / hypotenuse
and that means sin(22)= x/19
we then plug in sin (22) in out calculator and get around .37
then we can use algebra and multiply .37 by 19 to get our x value
.37(19)=x
x=7.12
85 Quarts equals 170 Pints Because:
1 Quart = 2 Pints
85*2=170 Pints
Distance = velocity x time
Assume the distance moved by your friend is "d" and that the time taken for you to catch to him is "t"
you are moving with a velocity of 18 mph and your friend is moving with a velocity of 12 mph.
distance covered by your friend (d) = 12t miles ......> equation 1
If you add 3 to your rate, your distance will be the same as your friend's. This means that:
<span> d+3 = 18t miles ......> equation 2
Substitute by 1 in 2:
12t + 3 = 18t
3 = 6t
t = 0.5 hours
This means that you will catch up to your friend in half an hour.</span>
