Whats the correct answer?

What is the solution to this system of equations? 5x-3y=10 3x+3y=3

The sixth grade is charging $9 per car to wash cars. The fifth grade is charging $8.50 per car. Suppose each grade washes 50 cars. How much more money will the sixth grade earn?

The dimension of the row space of a 3 x 5 matrix A is 2 d. What is the dimension of the solution space of the homogeneous system Ax = 0?

Using complete sentences, explain the key features of the graph of the cosine function.

What is the value of 6x-3y if x=5 and y = - 1

The simple interest on a principal amount, P, borrowed for T years at R% annual interest is given by the following formula. Which of the following describes the relationship between the variables of the simple interest formula? 1.

Y varies inversely as x. When y = 18, x = 6. Find the constant of variation and determine the value for y when x = 27.

A sandwich shop has three types of sandwiches: ham, turkey, and chicken. Each sandwich can be ordered with white bread or wheat. Customers can add any combination of the four available toppings.

When my teacher says find (a) but i found it, what does she mean?

You order 4 fish sandwiches and a hamburger. The cost of the hamburger is $2.50 your total bill before taxes $14.30. Write and solve an equation to find the cost of a fish sandwich.