Basic operations and concepts - math word problems - page 173 of 323

Number of problems found: 6446

Exponent equation
Determine the value of x: 2^x = (2^-3): 2
Multiplicative inverse
Which number is to multiply the number by to get the number: a) 1 b) m
Mushrooms
For five days, we collected 410 mushrooms. Interestingly, we collected ten mushrooms more every day than the preceding day. How many mushrooms have we collected during the 4th day?
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?
Sequence
Find the common ratio of the sequence -1, 3, -9, 27, -81. Please ratio writes as a decimal number rounded to a tenth.
ZOO
In the zoo were elephants, as many as ostriches. Monkeys were four times more than elephants. Monkeys were as many as flamingos. Wolves were five times less than flamingos. How many of these animals were together? We know that there were four wolves.
Number series key
A series of numbers was created according to a specific key. Uncover it and fill in the last two missing numbers. 2-3-6-15-42-? -?
Factorial division remainder
Find the remainder after division when we divide the sum of 1! +2! +3! +. ... . +300! number 13.
Arithmetic progression
Determine the difference and the first term of AP if a3 + a4 = 48, a7 = 80.
Exponent value
Determine the value of f: 0.49^f = 0.7
Equation - integers
Solve the equation with the unknown x from the field of natural numbers 1+6+11+16+. ... +x=970
Special sequence
What if 2×9=1 3×9=2 4×9=3 5×9=4 6×9=5 7×9=6 8×9=7 9×9=8 10×9=9 then 1×9=??? Answer with solutions.
Divisible by nine
How many three-digit natural numbers in total are divisible without a remainder by the number 9?
Sum and ratio
The sum and ratio of two numbers are equal to 10. Which numbers are they?
Hens and pigs
Hens and pigs have 46 feet in total. At least how much can heads have?
Have solution
The sum of four consecutive even numbers is 92. Determine these numbers.
Exponent value
Determine what z equals in the expression 169^z = 2 · 6.5
Exponential equation
Find x, if 625^x = 5 The equation is exponential because the unknown is in the exponential power of 625
Divisibility
Write all the integers x divisible by seven and eight simultaneously, for which the following applies: 100 < x < 200.
Number series continuation
Continuation of the number series 9,12,18,27

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