Answer:
45 kg = Bethan's share
105 kg = Jade's share
Step-by-step explanation:
Let 3x = Bethan's share
4x = Noah's share
7x = Jade's share
Since Noah's share was 60, then 4x = 60
x = 15
3(15) = 45 kg = Bethan's share
7(15) = 105 kg = Jade's share
(-1,5) = (x1,y1)
(3,13) = (x2,y2)
slope(m) = (y2-y1)/(x2-x1)
= 2
by using slope point form
y-y1 = m (x-x1)
y-5 = 2(x+1)
2x-y+7=0
Answer:
20.85 ft
Step-by-step explanation:
first convert 7 in to ft than add 9 to it
10×5×9.583 = 479.15ft that's how much carpet he needs for his room
500-479.15= 20.85ft left for the rest of his house
Answer:
9 seconds
Step-by-step explanation:
When the object is on the ground it's height = 0
Equate h(x) = 0, hence
- 5(x + 1)(x - 9) = 0
equate each factor to zero and solve for x
x + 1 = 0 ⇒ x = - 1
x - 9 = 0 ⇒ x = 9
x > 0 hence x = 9
The object hits the ground 9 seconds after being launched
