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mojhsa [17]
2 years ago
12

Dan can tile a floor in 3 hours. his assistant could tile the same floor in 8 hours. if they work together, how long will it tak

e to tile the floor?
Mathematics
1 answer:
natta225 [31]2 years ago
7 0

There is a formula for this:

Total Time = (worker1 * worker2) / (worker1 + worker2)

(3 * 8) / (3 + 8)

24 / 11 =

2.1818181818 hours


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Solve the following equation. Then place the correct number in box provided.
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3 years ago
Jack is holding nickels and dimes. He has 4 more dimes than nickels. He has a total of $.70 in his hand. How many of each coin d
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3 years ago
If a cube is 3 inches on each edge, what is it’s volume
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8 0
3 years ago
A hyperbola centered at the origin has a vertex at (0,−40) and a focus at (0, 41).
aniked [119]

\frac{(x-h)^{2} }{a^{2} } - \frac{(y - k)^{2} }{b^{2} } = 1

\frac{(x-0)^{2} }{40^{2} } - \frac{(y - 0)^{2} }{b^{2} } = 1

a² + b² = c²

40² + b² = 41²

         b² = 41² - 40²

         b² = 1681 - 1600

         b² = 81

         b = 9

slope (m) of asymptote = +/-\frac{y}{x} = +/-\frac{b}{a} = +/-\frac{9}{40}

y-intercept (b) = 0 since the center is at the origin

Answer: y = \frac{9}{40}x and y = -\frac{9}{40}x

7 0
3 years ago
Read 2 more answers
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