If n is "the number," which equation could be used to solve for the number?

The chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Multiply [ 2 ] [ 3 ]. [-1 5 6]

Rick won 27 tickets playing a game. to get a prize, he needs to win at least 30 tickets. how many more tickets can he win to get a prize?

Driving from oban to stranraer a driver averages 8 miles per gallon of feul. If feul cost 83 cents a gallon how much will the journey cost in fuel

If the size of the sample to be used in a particular test of attributes has not been determined by utilizing statistical concepts, but the sample has been chosen in accordance with random selection procedures A) No inferences can be drawn from the

Zhen is an audiobook narrator. The table gives some completed audio lengths and the amount of time Zhen spends researching, recording, and editing the audiobook. Completed (hours) _ Working time (hours) 1 _ 6 1/2 3 1/2 _ 22 3/4 7 _ 45 1/2 10 _ 65

Eight algebra questions (explanations would be appreciated): Use substitution to solve the following: 1) y=x² y=x+2 2) y=x²+3 y=4x 3) x²+4y=1 y=x+1 4) x²-3y=-2 y=4+x 5) x²-2y=-4 y=6-x 6) x²+4y=9 y=x-3 7) x²+5y=16 y+x=2 8) y=x²-6x 3x-y=-10

Brenda is making bracelets that each use three 6 inch. strips of leather. she wants to make 6 bracelets. how many strips of leather does Brenda need.

0.75,1/2,0.4, and 1/5

Monthly Payment - Ms. Moore is purchasing a house and needs to finance a $150,000 mortgage from the bank with an annual percentage rate (APR) of 3.8% She is financing it over 30 years and making monthly payments. What is the total amount Ms.