Jameson wants to save up his money to buy a car. His parents said they will match what he saves, up to $ 2,000 Jameson mows lawns in the summer and shovel snow in the winter. He charges $25 per lawn and $20 per driveway. Let x represent the amount of money that Jameson can save so that his parents will match the amount. Let L represent the number of lawns he mows, and D represents the number of driveways he shovels. Which of the following inequalities need to be part of the system? Select all that apply.

x<=2000
x=>2000
25l+20d=x
20l+25dx

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a