Answer:
7.5
Step-by-step explanation:
7.5kilometer
for 30mins semin runs 5kilometer
then for 1min: (1min×5kilometer)÷30mins,
therefore, for 45mins: (45mins×5kilometer)÷30mins=7.5kilometer
We use the formula where d is distance, s is speed and t is time.
Therefore, a car would tracel 480 km.
three equivalent ratios will be
6:22 , 9:33, 15:55
Hope this helps
4
The sum of the measures of all interior angles in triangle is always equal to 180°. So,
∠A+∠B+∠C=180°
∠B=180°-63°-49°=68°
Now use the sine rule:
Answer:360