math
Name three factors of 100,000,000 that are not multiples of 10.
math
If 72 divides m, what other numbers must divide m? If 55 divides m, what other numbers must divide m? (Enter your answers as a comma-separated list.)
math
The factors of a number include 9, 12, and 20. What is the smallest number this could be? List all the factors of this number
math
The GCF of two numbers is 15. Their LCM is 450. What are the two numbers? (Enter your answers as a comma-separated list.)
math
A child has a large supply of dominoes, each of which measures 16 millimeters by 88 millimeters. She wants to lay them out to form a solid square, and she wants them all to be laid out horizontally. What will be the dimensions of the smallest square that she can form, and how ...
math
George vacuums the rugs every 18 days, mows the grass every 9 days, and pays the bills every 15 days. Today he did all three. How long will it be before he has another day like today?
math
Ann and Bob are cycling on a track. Ann completes one lap every 15 seconds, and Bob completes one lap every 18 seconds. When will Ann lap Bob, assuming that they started together?
math
I am thinking of a two-digit number in which the sum of the digits is 9 and the number is even. These clues alone do not create one answer. Add one more clue so that there is only one answer. Both digits are divisible by 2. The difference of the digits is 2. Both digits are th...
math
A manufacturer sells widgets, each of which is packaged in a box whose dimensions are 8 centimeters by 8 centimeters by 8 centimeters. Design the dimensions of a box to ship widgets. Your box must hold at least 1000 widgets. (Enter your answer in the form length, width, height...
math
Suppose the U.S. federal debt was $9,400,000,000,000. Let's say that the decision was made to reduce the debt by $10 million per day. How long would it take to pay off the debt at this rate? (Round your answer to the nearest year.)
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