Answer:
so you wont have to find the LCD (least common denomonatoir )
Step-by-step explanation:
Answer:
i only know a few
Step-by-step explanation:
5. 60
6. 80
4. 58
3. 38
Answer:10
Step-by-step explanation:
multiply then divide and cross it out
Step-by-step explanation:
Explanation:
Less Men, means more Days {Indirect Proportion}
Let the number of days be x then,
27 : 36 :: 18 : x
[Please pay attention, we have written 27 : 36 rather than 36 : 27, in indirect proportion, if you get it then chain rule is clear to you :)]
=>27x = 36 * 18
=> x = 24
So 24 days will be required to get work done by 27 men..
ANSWER
EXPLANATION
We want to find the exact value of cos(150°).
150° makes an angle of 30° with the positive direction of the x-axis and it is also in the second quadrant.
The cosine ratio is negative in the second quadrant.
Using the unit circle,
