3 years ago

Raymond can paint 5/8 of a wall in 16 minutes. How long would it take to for him to paint 1/3 of a wall

Mathematics

1 answer:

Juliette [100K]3 years ago

5 0

Answer: 128/15 min or 8.5 min

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Help me please!

telo118 [61]

Answer:

$f^{-1}(6) = 50$

Step-by-step explanation:

Given

$f(x) = \sqrt{2x} - 4$

Required

Find $f^{-1}(6)$

First, we calculate the inverse function

$f(x) = \sqrt{2x} - 4$

Express f(x) as y

$y = \sqrt{2x} - 4$

Swap the positions of x and y

$x = \sqrt{2y} - 4$

Solve for y: Add 4 to both sides

$4 + x = \sqrt{2y} - 4+4$

$4 + x = \sqrt{2y}$

Square both sides

$(4 + x)^2 = 2y$

Divide both sides by 2

$y = \frac{(4 + x)^2}{2}$

Express y as an inverse function

$f^{-1}(x) = \frac{(4 + x)^2}{2}$

Next, solve for: $f^{-1}(6)$

Substitute 6 for x

$f^{-1}(6) = \frac{(4 + 6)^2}{2}$

$f^{-1}(6) = \frac{(10)^2}{2}$

$f^{-1}(6) = \frac{100}{2}$

$f^{-1}(6) = 50$

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3 years ago

A chemist has 5 1/10 kg of calcium chloride. If she uses 0.15 kg of the compound each time she performs and experiment, for how

Licemer1 [7]

Answer:

5 1/10 ÷ .15 is 34 so she will be able to perform 34 experiments

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3 years ago

What is slope of the line

aleksley [76]

3 is the correct slope of the line:)

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2 years ago

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Whats 10{3[25-6(22-19)+11]}

katrin2010 [14]

The answer for this equation is 540!

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3 years ago

There are 48 students in a speech contest. Yesterday, 2/3 of them gave their speeches. Today, 3/4 of the remaining students gave

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Answer:

24 :))))))))))))))

Step-by-step explanation:

2/3 of 48 is 32, so 3/4 of 32 is 24.

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3 years ago