Element X decays radioactively with a half life of 10 minutes. If there are 510 grams

of Element X, how long, to the nearest tenth of a minute, would it take the element to

decay to 21 grams?

A problem states: "There are 3 more baseball than bats in a dugout. There are 15 bats and baseballs in the dugout in all. How many bats are there in the dugout?"

In math what is 3x-5

0.96*7.1 don't Kno know to check for the reasonablesness

Turn the expressions X-4 and 2x+4 into an equation to find X

A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting the given result. More than three twos. A. 0.433 B. 0.564 C. 0.905 D. 0.403

When rounded to the nearest hundred I become 500 what numbers can I be

camille rides the bus to work. to get downtown, she can ride any bus number between 11 and 34, that can be divided evenly by 3, and is an even number. wich numbers are the buses that camille could ride to work?

Trick question for fun: You're going bird hunting, you come across a group of 40 birds. You shoot 3, how many do you have left?

O is the centre of the circle the angle by arc bcd at the centre is 140 bc is produced to p find angle dcp

Find the median and mean of the data. 45, 40, 41, 68, 62, 77, 55