Answer:
Speed of river's current = 10 mph
Step-by-step explanation:
Given:
Speed of boat in still water =25 mph
Distance traveled by Jacksons down stream= 70 miles
Distance traveled by Jacksons up stream= 30 miles
Let rate of river's current be = mph
Speed of the boat down the river = mph
Speed of the boat up the river = mph
hours [ represent tie taken by the boat down stream.]
hours [ represent tie taken by the boat up stream.]
We know that
So,
Solving for
Cross multiplication.
Using distribution.
Adding both sides.
Subtracting fro both sides.
Dividing both sides by
∴
Speed of river's current = 10 mph
Answer:
47.5 y²
Step-by-step explanation:
The formula for finding the area of a circle: π<em>r</em>²
The radius (<em>r</em>): 5.5
Square (multiply by itself) 5.5.
5.5² = 30.25
Multiply by pi (3.14).
94.985
This figure is a semicircle, therefore, divide the area by 2.
47.4925
Round to the nearest tenth.
47.5
The area of this figure is 47.5 y².
Answer:
James sold 300 adults tickets.
Step-by-step explanation:
Let he number of adult tickets = x
And the number of children tickets = y
Thus, we have the equations
Multiply equation (1) by 2 and subtract from equation (2)
Therefore, James sold 300 adults tickets.
18+15=33 the amount paid per ticket
40+90=130 the amount paid for transportation (not dependent on the number of tickets bought)
The equation would be y=33x+130
Where x is the number of tickets sold
and y is the cost
Hope this helps!
Answer:
Is there an image to visualize the field?
Step-by-step explanation:
I would love to help.