Solve for the system of liner equations by substitution.

X+4y = - 1

-3x-14=y

The sum of 3 and a number is added to 24? algebra

What is the anwser to 3 (2t+5) = 5t+25

Troy is baking a cake for his mother's birthday the recipe calls for 3 1/4 cups of flour since so many people are coming to the party Troy wants to make a cake 5 times larger than the recipe calls for how many cups of flour should be used in the

Cuál es el resultado de 71 sobre 40, debo simplificar

The equation v=-2000+20000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth $10,000, substitute 10,000 into the equation to find the age of the car.

When four times the number is added to 7 times the result is 33. What is the number?

A tablet computer costs $189.69 including tax. It is marked up 30%. What is the final price of the tablet computer after it is marked up? A. $56.91 B. $132.78 C. $219.69 D. $246.60

Jeff found 3 times as many seashells as his sister. Jeff found 39 seashells. How many seashells did his sister find? Write an equation to represent the situation. Then solve the equation to answer the problem.

Divide. square root of - 18 / square root of - 50

Which type of probability is determined by personal experimentation and testing? a. unpredictable probability b. theoretical probability c. random probability d. empirical probability?