A motorist drove 150 miles in the morning and;
50 miles in the afternoon
His average rate in the morning was twice his average rate in the afternoon
He spent 5hrs driving
Let the times spent driving in the morning be x
Average speed = Distance ÷ time
= 2()
Cross multiplying gives;
750 - 150x = 100x
250x = 750 , x =3
Average speed in the morning is 150/3 = 50miles/hr
Average speed in the afternoon = 50/(5-3) = 25miles/hr
Answer:
$0.38
Step-by-step explanation:
First we need to convert pounds to ounces
1 pound = 16 ounces
Thus 16 ounces cost $3
If a portion requires two ounces of butter, we must find out the cost of these 2 ounces, knowing that 16 ounces cost $ 3
ounces cost
16 -- $3
2 -- x
To find the cost x:
rounding to the nearest cent: $0.38
Solve this with a ratio. Your ratio will be 1 inch/ 5 inches= x inches/ 14 inches
solve using cross multiplication and you get:
5x=14
x= 14/5 inches