Duas contas de regra de três simples

Name all sets of numbers to which each real number belongs. 2/3

When x=12, y=8. Find x when y=12

What is the probability of having 53 Mondays in a leap year?

Mark's brother is 5 years older than Mark. Their combined ages add up to 23. How old is Mark?

What is 4.24 divided by 40?

Jasper has a coin collection consisting of quarters and dimes. He has 50 coins worth $8.60. How many of each coin does he have?

Y = 3x + 19 y = 5x + 33 Solve this system of equation by substitution

A vet's office offers boarding for cats and dogs. boarding a cat cost$20 per night and a dog cost $25 per night if the vet's office boards 18 total animals in one night and earns a total of $400 which equations can be used to find the number of

There are 101 students going on a field trip to pan for gold. If they are going in vans that hold 9 students each, how many vans are needed? How many students will ride in the van that isn't full? vans are needed.

David expressed the ratio of the number of books that he owns to the number of DVDs that he owns as 27:11. Which statement could be true based upon this relationship?