The lowest common multiple is the “the lowest quantity that is a multiple of two or more given quantities (e.g. 12 is the lowest common multiple of 2, 3, and 4)” - so you’re probably having trouble because you need another number to find the lcm :))
H(m+n)/2
4(5+6)/2
4(11)/2
44/2
22
(but if you mean by multiplication)
88
Let x be the speed of the slower plane, in km/h. Then the faster plane travels at x+40.
[2 hrs at speed x] + [(2 hrs - 1/2 hour) at speed (x+40)] = 2860(2x) + (1.5)(x+40) = 2860 solve for xx=800x+40=840
Plane 1 800 km/h
Plane 2 840 km/h
Answer:
∠ DCV = ∠ VBD = 50°
Step-by-step explanation:
The inscribed angles DCV and VBD are half the measure of their intercepted arcs, that is
∠ DCV =
DV =
× 100° = 50°
∠ VBD =
DV =
× 100° = 50°