To solve this system of equations by elimination, what operation could be used to eliminate the x-variable and find the value of y?

Kai worked a total of 30 hours last week on saturday and sunday he worked five times as many hours than he worked the rest of the week how many hours did he work the rest of the week

Ray feeds his dog 0.12 kilogram of dry dog food each day. He wants to buy the smallest bag that has enough food to feed his dog for one month. Should he buy the bag that has 1.8 kilograms, 2.4 kilograms, or 4.2 kilograms of dog food?

A clothing store donated a percent of every sale to hospitals. The total sales were $6,500 so the store donated $260. What percent of $6,500 was donated to hospitals? I'm literally confused

A school pays $1,825 for 150 shirts. This includes $25 flat-rate shipping cost. a. What equation models the total cost as a function of the number of T-shirts ordered? b. What does each variable represent? c.

What's the average of 64 and 63

Maria is planning a party. Nancy, her friend, suggests that she should order 3 pizzas for every 7 people. If she is expecting 21 people at the party, how many pizzas should she order? A. 42 B. 9 C. 49 D. 21

Find the solution to the system of equations. y = - 7x + 3 y = - x - 3 x= y=

How to solve the equation 9x-2=16

Write an equation of the line with the same slope as the line given by 5x + 2y = 8 and the same y-intercept as the line given by 3x - 7y = 10

Last week, Jason ran 26.1 miles. He wants to run further this week. He plans to run 2.4 miles to the park, four times around the park, and 2.4 miles back from the park. To represent that inequality, he wrote: 2.4 + 4p + 2.4 ___ 26.1