Acar is traveling at a rate of 30 meters per second. what is the car's rate in kilometers per hour? how many kilometers will the car travel in 2 hours? do not
round your answers
rate:
xs ?
distance traveled in 2 hours:

Rate = 108 km/hr

Distance travelled in 2 hours = 216 km

Step-by-step explanation:

A car is travelling at a rate of 30 meters per second

1 km = 1000 meters

? km = 30 meters

Cross multiplying gives; km

1 hr = 3600 seconds

? hrs = 1 second

Cross multiplying gives; hrs

Speed = Distance ÷ Time

Speed in km/hr =   km ÷   hrs =   km × = 108 km/hr

Distance travelled in 2 hours = 2 × 108 km = 216 km

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629