Hamburgers cost $2 per lbs and chicken costs $3 lbs and you only have $30 to spend and expect at least 3lbs of hamburger
if you want at least 3 pounds of hamburgers, then $6 is enough to buy those 3 pounds of hamburgers. if you only buy 3 pounds, then you also have enough for 4 pounds of chicken. $3 a pound x 4 = $12. you have 2 dollars left to spare, which means you can buy another pound of hamburgers. so 4 pounds each are able to be purchased.
x = 1 and y = 11
to start, let's substitute in y into the first equation. we will get 5x + 3 (3x + 8) = 38. now, distribute the 3 in the 2nd term to get 5x + 9x + 24 = 38. add like terms to get 14x + 24 = 38, and subtract 24 from both sides to get 14x = 14. now, divide both sides by 14 to get x = 1. plug this back in to get that y = 11.
answer: 11378.58 ft
1. draw a figure like the one attached, where a is the position of the airplane and b and c are the positions of the cars.
2. the distance between the cars is the length bc, then, you need to calculate the measure of bd and dc to add them and obtain bc.3. you know the opposite side and the angles of depression, then, you can calculate the distance between the cars as following: