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3 years ago

HELP!!!!!!!!!!!! 1/5+20.3-(-5 3/5) show all the steps

1 answer:

8 0

$change\ fractions\ as\ decimals:\\\\\frac{1}{5}=\frac{1\times2}{5\times2}=\frac{2}{10}=0.2\\\\\frac{3}{5}=\frac{3\times2}{5\times2}=\frac{6}{10}=0.6\to5\frac{3}{5}=5.6\\\\therefore:\\\\\frac{1}{5}+20.3-\left(-5\frac{3}{5}\right)=0.2+20.3+5.6=26.1$

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A local pizza restaurant delivery time has a uniform distribution over 0 to 60 minutes. What is the probability that the pizza d

Likurg_2 [28]

Answer:

$X \sim Unif (a= 0, b=60)$

And we want to find the following probability:

$P(X>30)$

And for this case we can use the cumulative distribution given by:

$F(x) =\frac{x-a}{b-a}, a \leq x \leq b$

And for this case if we use this formula and the complement rule we have:

$P(X>30)= 1-P(X$

Step-by-step explanation:

Let X the random variable who represent the pizza delivery time and we know that the distribution for x is given by:

$X \sim Unif (a= 0, b=60)$

And we want to find the following probability:

$P(X>30)$

And for this case we can use the cumulative distribution given by:

$F(x) =\frac{x-a}{b-a}, a \leq x \leq b$

And for this case if we use this formula and the complement rule we have:

$P(X>30)= 1-P(X$

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4 years ago

Solve the equation<br> √x-7=3

loris [4]

Answer:

Step-by-step explanation:

√x - 7 = 3 {add 7 to bothe sides}

√x - 7 + 7 = 3 + 7

√x + 0 = 10

√x = 10

Square both sides,

(√x)² = 10²

x = 100

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3 years ago

Chelsea and her friends are making small fruit baskets for their neighbors. They have 90 pears, 45 peaches, and 75 apples. What

iVinArrow [24]

Answer:

15 baskets

Step-by-step explanation:

This question is a GCF question

The first step would be to find the factors of 45, 75 and 90

The factors of 45 are: 1, 3, 5, 9, 15, 45

The factors of 75 are: 1, 3, 5, 15, 25, 75

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

The greatest common factor is 15.

Therefore, the greatest number of baskets they can make if each basket has the same number of pears, the same number of peaches, and same number of apples, with no fruit leftover is 15 baskets

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3 years ago

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irina1246 [14]

You were probably given a number to plug into the equation , which is no different then it being y=x-4 , just solve for the f(x)

4 0

3 years ago

I need help asap plz

mylen [45]

The answer is: 64

Hope it helps! And have a great day✌

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3 years ago