7.
2 answers:
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Answer:
Step-by-step explanation:
Direct proportion
60: 1 5 /12 = 120 : x
60: 17/12 = 120:x
Product of extremes = product of mean
60*x = (17/2)*120
It will take 2 5/6 hours to read 120 pages
Answer:
Cos A = 24/25 & Tan A = 7/24
Step-by-step explanation:
See the attached figure.
Construct a right triangle and sign one angle as A
So, Sin A = opposite/hypotenuse = 7/25
∴hypotenuse = 25 and opposite = 7
∴ adjacent = √(25² - 7² ) = √576 = 24
∴ Cos A = adjacent/hypotenuse = 24/25
And
Tan A = opposite/adjacent = 7/24
