Answer:
$21
Step-by-step explanation:
2Lbs. = $6
(2/2) = (6/2)
1Lbs. = $3
(1*7) = (3*7)
7Lbs = $21
Since strawberries are priced on weight, you first need to find the weight of one pound. The prices need to be proportional, so whatever you do to one side of the equal sign, you need to do to the other. Divide both numbers by 2. One pound costs three dollars. Then multiply both numbers by 7. Seven pounds of strawberries cost twenty-one dollars
Answer:
Malcom's maximum speed = 200 km/h
Ravi's maximum speed = 320 km/h
Step-by-step explanation:
Let m = Malcom's maximum speed
Let r = Ravi's maximum speed
Average of their maximum speed would be represented as
.
Make m the subject of the formula by subtracting r from both sides:
. Let this be equation 1.
Given that Malcom's speed (m), when doubled is 80 km/h more than that of Ravi (r). This can be expressed as: . This is equation 2.
Plug in (520 - r) into equation 2 to replace m:
Solve for r. Subtract 1040 from both sides:
Subtract r from both sides
Divide both sides by -3
To find m, plug in the value of r into equation 1.
. =>Equation 1
.
Malcom's maximum speed = m = 200 km/h
Ravi's maximum speed = r = 320 km/h
1) Unanswered (Sorry)
2) Find the cost of a four-line ad
3) Find the cost of a ten-line ad
Answer:
4970
The mean - the median = 4970