Answer:
it take 1/7 km in 1 hour then,
1 km it take 7 hours
so, it cover 5 km in 35 hours
1/7 km ------- 1 hour
1km ------- 7 hour
5km -------( 5*7) == 35 hours
I don’t know if this is right but the way I did it I got 7.5
Answer:
p= a +2b
Step-by-step explanation:
Making p the subject of the equation means that we need to arrive at the final answer of p= ____.
a= p -2b
a +2b= p <em>(</em><em>+</em><em>2b</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
p= a +2b
Answer:
Area = 2500 square feet is the largest area enclosed
Step-by-step explanation:
A rectangular piece of land borders a wall. The land is to be enclosed and to be into divided 3 equal plots with 200 feet of fencing
Let x be the length of each box and y be the width of the box
Perimeter of the box= 3(length ) + 4(width)

solve for y


divide both sides by 4

Area of the rectangle = length times width



Now take derivative

Set it =0 and solve for x


multiply both sides by 2/9


For any value of x, second derivative is negative
So maximum at x= 100/3
, replace the value of x

Area = 2500 square feet is the largest area enclosed