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Question 276969: A wire is attached to the top of a 36-foot pole. The other end of the wire is attached to the ground 20 feet from the bottom of the pole. If the pole makes an angle of 90degrees with the ground, find the length of the wire to the nearest tenth of a foot.
Click here to see answer by Theo(13342)  |
Question 278810: A student wants to know how many integers between 1 and 1000 are a multiple of 4 or a multiple of 5. She wonders if it is correct to find the number of those integers that are multiples of 4 and add the number of those that are multiples of 5. How do you respond?
Click here to see answer by Theo(13342)  |
Question 279762: A young equestrian loved to ride her horse all day long, dreaming of the day she would ride in the Kentucky Derby. One day in early April, she left home at 10:00 a.m. and rode her stallion at a nice, steady 10 miles per hour away from her house. At noon a call came in from the Derby saying she was in. Her father immediately jumped on his scooter to try and track her down and tell her the good news.
Riding at a breezy 15 miles per hour, after how many hours on the scooter will her father catch up to her?
Click here to see answer by richwmiller(17219)  |
Question 281593: When the first equation is solved we obtain the value of x as 3, when 3 is substituted in the second equation, its value is 10, hence only option A is correct.
4(3x - 3) = 24 or 12x - 12 = 24 or 12x = 36 or x = 3
5x - 5 = 5 * 3 - 5 = 15 - 5 = 10
Please show me how to solve the question
step by step
Thank you
Click here to see answer by richwmiller(17219)  |
Question 281845: I had this mixture problem on a quiz and its really hard. If i'd pulled out 10 hairs for each time i tried again, i'd be bald. Can someone help me with it? It is a mixture problem which is:
One solution is 80% acid and another one is 30% acid. How much of each solution is needed to make a 200L solution that is 62% acid?
I really need help with this so someone please answer it please! Thanks in advance!
Click here to see answer by nerdybill(7384)  |
Question 281839: 12. A car travels a distance of 250 miles, 700 miles and 325 miles at the rate of 50 miles/hr, 35 miles/hr and 13 miles/hr respectively.Find the average speed of the car in miles/hr.
A. 30
B. 25.5
C. 42.5
D. 13
E. 50
Hello!
Can you please show me step by step how to solve the answer.
Thank you
Tania
Click here to see answer by mananth(16946)  |
Question 281995: basic statistics: A box contains 18 transistors of which 3 are defective. If sample three of the transistors, Find the probability that we would find exactly 1 defective transistor. And find the probability that we would find at least 1 defective transistor.
Click here to see answer by solver91311(24713)  |
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