Answer:
19.5 miles
Step-by-step explanation:
The question is represented in the image attached.
∠A = 45°, ∠B = 45° + (216° - 180°) = 81°
∠A + ∠B + ∠C = 180° (sum of angles in a triangle)
45° + 81° + ∠C = 180°
126 + ∠C = 180
∠C = 180 - 126
∠C = 54°
The sine rule states that for a triangle with sides a, b, c and their corresponding opposite angles A, B and C. The following rule holds:
b = length of beginning of submarine to end point. Using sine rule:
Answer:
Step-by-step explanation:
Calculate the difference:
Calculate the ratio:
Convert to percentage:
Answer:
May
Step-by-step explanation:
Let x be the sales in January,
∵ Sales were 10% greater in February than in January,
So, the sales in February = (100 +10)% of x
= 110% of x
=
= 1.1x
∵ it is 15% less in March than in Feb,
Sales in march = (100-15)% sales in February
= 85% of 1.1x
= 0.935x
∵ It is 20% greater in April than in March,
Sales in April = (100+20)% of sales in march
= 120% of 0.935x
= 1.122x,
∵ It is 10% less in May than in April
Sales in May = (100-10)% of sales in march
= 90% of 1.122x,
= 1.0098x,
∵ It is 5% greater in June than in May
Sales in June = (100+5)% of sales in march
= 105% of 1.0098x,
= 1.5147x
∵ 1.0098x is much closure to x than 1.1x, 0.935x, 1.122x and 1.5147x
Hence, the sales in May is closest to sales in January.