Dave arrived to his grandmother's hours in7.75 hours.
Answer:
use a calculator
Step-by-step explanation:
We can use the pythagorean theorm. This means that the points can form the two legs of a triangle.
a = 6
b = 6
c = length AB
a^2+b^2 = c^2
2(6^2) = c^2
72 = c^2
c would be
or
<span>This question tells us that after every three squares, we will place a cork square. So there are 3 normal squares for every cork square. We are also told that there are a total of 12 squares. If we divide the total squares by the number of normal squares for every cork square, we obtain the number of cork squares. 12 / 3 = 4. So there are 4 cork squares.</span>
Let
x = time of Byran's work
x + 10 = time of Andy's work
Rate is usually expressed a reciprocal. The total rate will be 12 minutes.
1/x + 1/(x + 10) = 1/12
The value of x will be 20 minutes.
Therefore Byran can take 20 minutes while Andy can take 30 minutes.
