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2 years ago

6

Tiana can clear a football feild of debris in 3 hours. Jacob can clear the same feild in 2 hours. If they decide to clear the fe

ild together, how long will it take them

1 answer:

OleMash [197]2 years ago

3 0

Answer:

1 hour

Step-by-step explanation:

3 hours subtract 2 hours

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Ok, so we can express the boys as another letter. just express them as the letter B for boys.

Step-by-step explanation:

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What’s the inverse of the function F(x)=2x+1

antoniya [11.8K]

Answer:

Step-by-step explanation:

1. Replace F(x) with y.

2. Interchange x and y in y = 2x + 1: x = 2y + 1

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alukav5142 [94]

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2 years ago

An employee at a department store is stocking cell phone cases. He has a box of 80 cases. Among the 80 cases, 40 are black, 10 a

Salsk061 [2.6K]

Answer:

$\sf \dfrac{203}{4108}$

As a decimal = 0.05 (nearest hundredth)

Step-by-step explanation:

$\sf Probability \ of \ an \ event \ occurring = \dfrac{Number \ of \ ways \ it \ can \ occur}{Total \ number \ of \ possible \ outcomes}$

First pick:

$\sf \implies P(pink)=\dfrac{30}{80}$

As the case is NOT replaced, second pick:

$\sf \implies P(pink)=\dfrac{30-1}{80-1}=\dfrac{29}{79}$

As the case is NOT replaced, third pick:

$\sf \implies P(pink)=\dfrac{29-1}{79-1}=\dfrac{28}{78}$

Therefore,

$\sf \implies P(pink \ and \ pink \ and \ pink)=\dfrac{30}{80} \times \dfrac{29}{79} \times \dfrac{28}{78}=\dfrac{203}{4108}$

Answer as a decimal = 0.05 (nearest hundredth)

6 0

2 years ago