Average speed: 72 mph
Explanation:
To get the car's average speed, all you really need to know is
the total distance travelled by the car
the total time it needed to cover that distance
In your case, you know that the car travelled for a total of 60 miles and that it needed 50 minutes to do so.
Since you need to express the average speed in miles per hour, not miles per minute, you're going to have to use a simple conversion factor to get you from minutes to hours.
First, calculate the average speed in miles per minute
v
avg
=
d
total
t
total
v
avg
=
60 miles
50 minutes
=
1.2 mi/min
Now convert this value to miles per hour
1.2 miles
1
minute
⋅
60
minutes
1 hour
=
72 mph
We represent the unknown number x. The product of this number and -3 is -3x. This product should be no more than 15. This also means that the product should be less than or equal to 15. This is shown in the inequality,
-3x ≤ 15
The answer is letter B.
Step-by-step explanation:
The mean is given as 7. That is the only information given, and it is not enough to determine the number of raisin in each scoop.
Suppose the total number of raisins was given, then the total number of raisins is easily given as (total number of raisins) ÷ (mean)
= (total number of raisins) ÷ 7
<span>8p = 3p + 25
Subtract 3p from both sides: 5p = 25 Divide both sides by 5: '
p = 5</span>
it is 2/6
you add all the marbles to the bottom and the yellow to the top
