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Gnesinka [82]
3 years ago
7

PLEASE ANSWER QUICK I NEED TO FINISH IN 50 MINUTES FOR MY TEST

Mathematics
1 answer:
Julli [10]3 years ago
4 0

Answer: Willis will take 3 hours to paint the room by himself.

Step-by-step explanation:

Given: Time taken by James to complete job by himself = 6 hours

Let Time taken by Willis to complete job by himself = t hours

Together they take 2 hours.

\dfrac{1}{6}+\dfrac{1}{t}=\dfrac{1}{2}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{2}-\dfrac{1}{6}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{3-1}{6}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{2}{6}\\\\\Rightarrow\ t=\dfrac{6}{2}\\\\\Rightarrow\ t=3

So,  Willis will take 3 hours to paint the room by himself.

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A baseball team had 75 players show up for tryouts last year and this year had 90 players show up for tryouts. Find the percent
BigorU [14]

Answer:

20%

Step-by-step explanation:

Subtract the original number from the new number: 90-75=15

The increase is 15

Now divide the increase by the original number: 15/75=.20

Then multiply your answer by 100: .20x100=20

5 0
3 years ago
Taylor used 2 cans of blue paint and 5 cans of yellow paint to decorate a wall. Each can contains 200 millilitres of paint.
rewona [7]

Answer:

C.

Step-by-step explanation:

200 X 5 = 1000

200 X 2 = 200

1000-200= 800.

Taylor uses 800 ml more of yellow paint compared the blue paint.

7 0
3 years ago
Part one: Sequence and Series
ASHA 777 [7]

Answer:

- 57

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The n th term of an arithmetic sequence is

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Here a = 13 and d = - 2.5, thus

a_{29} = 13 + (28 × - 2.5) = 13 - 70 = - 57

8 0
3 years ago
The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of 0.5 min
Hitman42 [59]
Given:
μ = 2 min, population mean
σ = 0.5 min, population standard deviation

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From standard tables, obtain
P(x ≤ 3) = P(z ≤ 2) = 0.9772
Therefore
P(x > 3) = P(z > 2) = 1 - 0.9772 = 0.0228

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8 0
3 years ago
PLEASE HELP ME THIS THING IS DUE TOMORROW. 14 feet ≈ ? meters
ddd [48]
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3 0
3 years ago
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