A jar contains n nickels and d dimes. There are 21 coins in the jar, and the total value of the coins is $1.55. How many nickels and how many dimes are in the jar?

Choose a variable to isolate and what it is equal to in the system of equations below. 3x = y+4 4y = 3x-1 A. 2y = x-1 B. y = 3x+3 C. 4y = 3x-1 D. y = 3x - 4

The owners of a waterpark are taking a survey to determine how many trips to the park kids in the area take during the summer. they take a survey of kids entering the park on a monday. is this a good sampling method?

How many solutions does this equation have - 10x+3=5x-27

Evuluate the algebraic for the given value of each variable xy-5 at x=5,=2

Allen Tennis Inc. pays its employees on a piece-rate basis of $0.25 for each tennis ball they produced. Boris Becker produced 2,664 Tennis balls. What was his gross pay?

If you was born five years ago how old would u be

What is 5/2 + 7/4 = to?

Solve the inequality -5 (x - 1) > - 40

In the school election, votes were cast for sam, mary, and bill in the ratio of 4:3:2. if a total of 2178 votes were cast, how many votes did mary receive?

How much greater is the volume of the large truck than thr volume of the small truck