Basic functions - math word problems
Number of problems found: 2472
- Three towns and roads
If there are 3 roads from town A to town B And 4 roads from town B to town C, in how many ways can one go from town A to town C and back to town A, through town B, without passing through the same road twice? - Two workers
One worker makes a part 4 hours and the second 9 hours later than they would make the same part together. How long does it take for each worker to make the part himself? - Big school kitchen
If 250 learners can be fed by 75kg. How many kg can 600 learners can be fed? - Three sigma rule
The height of trees in a given stand is known to be a quantity with a normal probability distribution with a mean value of 15 m and a variance of 5 m2. Determine the interval in which there will be tree heights in such a stand with a probability of 90% - Poisson distribution - daisies
The meadow behind FLD was divided into 100 equally large parts. Subsequently, it was found that there were no daisies in ten of these parts. Estimate the total number of daisies in the meadow. Assume that daisies are randomly distributed in the meadow. - Unemployment rate
Over the last 16 years, the country's unemployment rate has changed according to the following frequency table: years of unemployment: 2 5 2 3 3 1 unemploymen rate: 0.5 1 1.5 2 2.5 3 in % (percent). Determine the two-sided confidence interval for the vari - Sean Junkins
Sean Junkins works at X-Mobile. His pay is easily calculated by using the expression 12h+8c, where h is the number of hours he works and c represents the amount of phones he sells. Would Sean Junkins make more money if worked 37 hours and sold 3 cell pho - Hour salary + fix
Devin recently hired a contractor to do some necessary work. The contractor gave a quote of $395 for parts plus $62 an hour for labor. Let x represent the number of labor hours worked. Write an algebraic expression to represent the total cost for the rep - Dinner tickets
At the spring festival, 7 out of the first 25 attendees had pre-purchased their dinner tickets. Based on this information, if 600 people attended the spring festival, then how many attendees could be expected to have pre-purchased their dinner tickets? - Center of gravity and median
In the isosceles triangle ABC, the center of gravity T is 2 cm from the base AB. The median parallel to the AB side measures 4 cm. What is the area of the ABC triangle? - Smoker male
For a person selected randomly from a certain population, events A and B are defined as follows. A = event the person is male B = event the person is a smoker. For this particular population, it is found that P(A ) = 0.53, P(B) = 0.15, and P(A n B ) = 0.1 - Petra's test
The answer will be given 8 marks, and the wrong answer will be deducted 3 marks. The total number of marks obtained by the school is 36. If Petra answered six questions correctly, how many questions were answered incorrectly by the student from the scho
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