2x+ky=7 and 4x-9y=4 find value of k if matrix of coefficients is singular

A women-only gym has 60% of its members married. 75% of the married women exercise in the morning and 30% of the single women exercise in the morning. Find the probability of being married if you go to the gym in the morning.

14=7x+4-2x (Simplify your answer)

There are 24 animals in the barn. Some are chickens and some are horses. If there are 84 legs in all, how many of each animal are there? (No animals are missing

I have 72oz of juice. I have to fill as many 6oz glasses as possible. Then I can drink what's left over. How much juice do I get to drink?

A u. s. dime has a thickness of 27 / 20 millimeters guy has a stack of Dimes that is 783 / 10 millimeters tall. How many dimes does he have?

Emily is 46 years old. Colin is 11 years older than Emily. Dan is 5 years younger than Emily. What is the total of their combined ages?

a chicken needs cooking for 2 hours 20 min it needs to be cooked at 1pm what time do i need to start cooking

Whats the definition of quadratic expression

There are two dogs for every three cats. That means there are 2/3 as many ___ as ___ dogs or cats?

B squared over B squared