What does it mean to solve a system with an equivalent system?

Consider the following discrete probability distribution. x 15 22 34 40 P (X = x) 0.08 0.52 0.25 0.15 a. Is this a valid probability distribution? c.

Stephanie is going to summer camp. There are three cabins to which she could be assigned: Pine Cabin, Maple Cabin, or Spruce Cabin. She can be assigned either a top bunk bed or bottom bunk bed.

The length of a rectangle is 7 meters longer than its width. What is the width of this rectangle if its perimeter is equal to 130 meters?

1,679 rounded to the nearest thousand

Bobby spent 122 minutes on school work the first week, but only spent 109 minutes on school work the second week.

An employee gets paid $1,035 each week. How much money will the employee get paid for working 6 weeks? How can you use estimation to check the reasonableness of your answer?

a man divided $9000 among his wife son and daughter. the wife rectwice as much as the daughter and the son received $1000 more than the daughter. how much did each receive.

What is 100/112 in a percentage of s 100%

Every Wednesday Carla runs 2.5 miles how many feet did she run

Justin wants to plant grass in his backyard. His backyard is in the shape of a rectangle. Its length is 32 feet and its width is 21 feet. Suppose each pack of seed covers 12 square feet. How many packs of seed will he need to cover the backyard?