Answer:it all take them 0.8 hours
Step-by-step explanation:
Let x represent the distance covered by Fed.
Their houses are 4 miles apart. It means that by the time they meet, John would have covered 4- x miles.
Let t represent the time taken by Fred to cover x miles and also the time taken by John to cover 4 - x miles.
Distance = speed × time
Therefore,
Distance covered by Fred would be
x = 3 × t = 3t
Distance covered by John would be
4 - x = 2 × t = 2t
Substituting x = 3t into 4 - x = 2t, it becomes
4 - 3t = 2t
2t + 3t = 4
5t = 4
t = 4/5 = 0.8 hours
Answer:
<u>See below:</u>
Step-by-step explanation:
Let the angles be 5x , 4x , 3x.[Since the angles are in ratio 5:4:3 ] respectively.
We know that sum of all angles of a triangle is 180°.
So,

Now Find the value of x of this equation.





Now,
Multiply each ratio given by 15 which is the value of x we got.
That is;



Hence,the measurements of the angles of the triangle would be 75°[First Angle],60°[Second angle],and 45° [Third Angle].

I hope this helps!
Let me know if you have any questions.
Hola!
7.32 × 8.5 = 62.22
hope it helps!