Basic operations and concepts - math word problems - page 169 of 319
Number of problems found: 6371
- Profit, revenue, cost
Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x), if R(x) = 3x3 + 2x - 1 and C(x) = x4 - x2 + 2x + 3? - Sum of the seventeen numbers
The sum of the 17 different natural numbers is 154. Determine the sum of the two largest ones. - Progression
-12, 60, -300,1500 need the next 2 numbers of pattern - Divisibility
Write all the integers x divisible by seven and eight simultaneously, for which the following applies: 100 < x < 200. - Series
Andrew wrote this series of numbers: 1,3,7,15, ...., n. Which number in the series does not belong? ... - Exponential equation
Find x, if 625^x = 5 The equation is exponential because the unknown is in the exponential power of 625 - Have solution The sum of four consecutive even numbers is 92. Determine these numbers.
- Consecutive 4122
The sum of four consecutive natural numbers is 90. Determine these numbers. - Equation: 3881
What is the solution of the equation: 2^x = 2/64 - Multiply 2762
Which number is to multiply the number by to get the number: a) 1 b) m - The sum AP with rule
Find the sum of all natural numbers between 1 and 100, which are divisible by 2 or 5 - Radioactive material
A radioactive material loses 10% of its mass each year. What proportion will be left there after n=6 years? - More money
Lenka has €4.8 more than Natalia. Who will have more and how much when Lenka gives Natalia €2.5? - Buffet
At the school, buffet were 30 children. Twenty-one children bought sandwiches, and 15 children bought lemonade. The four children did not buy anything. How many children bought lemonade and sandwiches? - Trains
Daily passes the same track section 8 pairs of trains with average 2400 passengers. How many people, on average, travel on one train?
- Cow
104 cow consumes 6968 kg hay per day. How many kg of hay was consumed by one cow in one day? - Unknown 3922
16% of the unknown number equals the square root of the number 25. Find this unknown number. - Number 3780
25% of the number x equals 2-1. What is the value of x? - Individual 64124
The line is divided into two parts in a ratio of 4:7. The difference in lengths of individual parts is 18 cm. What is the length of the line in cm? - Boys and girls 8
In a class of 35 boys and girls with a ratio of 2:5. 5 boys are absent, and five boys are present. How many students are present?
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