algebra

The number that is subtracted in subtraction.

In how many ways can a person choose 1 or more of 4 electrical appliances?

The integer part of a common logarithm is called the ________.

The constant “e” is named in honor of:

A man rows upstream and back in 12 hours. If the rate of the current is 1.5 kph and that of the man in still water is 4 kph, what was the time spent downstream?

A freight train starts from Los Angeles and heads for Chicago at 40 mph. Two hours later a passenger train leaves the same station for Chicago traveling at 60 mph. How long will it be before the passenger train overtakes the freight train?

If 9 ounces of cereal will feed 2 adults or 3 children, then 90 ounces of cereal, eaten at the same rate, will feed 8 adults and how many children?

Mary is twice as old as Helen. If 8 is subtracted from Helen’s age and 4 is added to Mary’s age, Mary will then be four times as old as Helen. How old is Helen now?

What do you call a radical expressing an irrational number?

A sequence of numbers where the succeeding term is greater than the preceding term is called:

How many cubic meters is 500 gallons of liquid?

Michael’s age is seven-tenths of Richard’s age. In four years Michael’s age will be eight-elevenths of Richard’s age. How old is Michael?

The first term of a GP is 160 and the common ratio is 3/2. How many consecutive terms must be taken to give a sum of 2,110?

Steve earned 96% on his first math test and 74% on his second test, and his average over 3 tests is 85%. What is his third test score?

Ian can remodel a kitchen in 20 hrs and Jack in 15 hours. If they work together, how many hours will it take to remodel the kitchen?

What is the numerical coefficient of the term containing \(x^3\) in the expansion of \((x + 2)^5\)?

What is 30% of 293?

A man sleeps on Monday, Tuesday, Wednesday, Thursday and Friday for 8, 6, 7, 4 and 5 hours, respectively. Find the number of hours he slept for 5 days.

How many arrangements of the letters in the word “VOLTAGE” begin with a vowel and end with a consonant?

An airplane flying with the wind took 2 hours to travel 1,000 km and 2.5 hours in flying back. What was the wind velocity in kph?