How can you use similiarity and proportionality to find missing measures?

Alex, Stephen and Bridget share some sweets in the ratio 4:1:1. Alex gets 36 sweets. How many sweets are there altogether?

11. Find the mean of first five natural numbers. Also find the range of the numbers

A company produces 7200 gallons of bottled water each day the company puts 8 one-gallon bottles in each carton how many cartons are needed to hold all the 1 gallon bottles produce in one day

Professionals typically order 10% more than calculated. If w represents the minimum number of whole boxes needed, what expression represents the number of boxes they would order?

Solve for x and y x+y=1 2y-x=8

Ella's geometry teacher asked each student to devise a problem and write out its solution. Here is Ella's work: A triangle has side lengths of 10, 11, and 15.

Name another fraction that is equivalent to 4/7

Ellen had 2,080 legos, but she lost 17 legos. How many legos does she have now

Homer has 24 more marbles than lisa. lisa has 105 more than bart. if the three of them have 324 marbles in total, how many marbles does each of them have?

Angelica solves the system { x + y = - 3. x - y = 1 } and finds the solution (1, 3). Use substitution to explain whether Angelica's solution is correct.