A compound bow can shoot an arrow at a speed of 245 feet per second.
How fast, to the nearest tenth, does the
arrow travel in kilometers per hour?

0.1 km an hour

Step-by-step explanation:

245 to km is 0.074676 divided by 60 minutes is 0.0012446 then move you decimal back up 0.12446 = 0.1 rounded

29 mil

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: