Answer:
25
Step-by-step explanation:
Do 5 X times 15 = 75 x
Do 75x / 3 = 25
Answer:
x=9.25
Step-by-step explanation:
ABD + CBD + ABC + 180
70 + 5x + 13 + 3x + 33 =180
116 + 8x = 180
8x = 74
x = 9.25
Answer:
n-20=5
Step-by-step explanation:
When it doesn't give you a number use a variable like n or m.
52 and 54. Integers are whole numbers meaning 1..4..7..17...25 and so on. Consecutive meaning one right after the other. So 52 and 54 are the answer.
Answer:
Step-by-step explanation:
25x2 − 40x + 16 = (5x)² - 2*5*4 + 4² { (a - b)² = a² - 2ab + b² }
= (5x - 4)² { here a = 50 and b = 4}
Side of the square = 5x - 4 units
Part B:
25x2 − 16y2 = (5x)² - (4y)² { a² - b² = (a + b) * (a - b) }
= (5x + 4y) * (5x - 4y) { here a = 5x and b = 4y}
Dimensions of Rectangle: (5x + 4y) ; (5x - 4y)