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3 years ago

Plz help me with this

Mathematics

1 answer:

enot [183]3 years ago

3 0

Answer:

27.7

Step-by-step explanation:

Pythagorean Theorem

$88.3^{2}$ - $10.7^{2}$ = $x^{2}$ (10.7 comes from half of the 21.4 side)

$x^{2}$ = height

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Alice and Bob both go to a party which starts at $5:00$. Each of them arrives at a random time between $5:00$ and $6:00$. What i

faltersainse [42]

The probability comes out to be 9/32.

Deducing Arrival Time Possibility

All the possible arrival times by Alice and Bob, in minutes after 5 PM, is constrained by the values of given values of x and y,

x = 0, y = 0, x = 60, y = 60.

Here, let the values of x represent how many minutes after 5 PM Alice arrives at the party.

Let the y values represent the time in minutes that Bob arrives at the party after 5 PM.

Calculating the Required Probability

The times that concern us, however, are obtained by the following probability function,

x + y ≤ 45.

And x = 0, y = 0, and x + y ≤ 45 define the constraints of this probability function. Thus the perimeter of such a graph will be given as,

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Since the total area of the various arrival times is 60 x 60, or 3600 square units, the probability that Alice and Bob will arrive together after 5 o'clock in the evening in less than 45 minutes is therefore = 1012.5 / 3600 = 9/32

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2 years ago

A flower vendor sells roses for 50 cents each. how much does she pay per flower if she makes $6.00 on every $20 worth sold

kkurt [141]

We are given

selling price of one flower is $0.50

so, $SP=0.50$

Let's assume

she sold 'n' flowers to get $20

so, total amount she get after selling 'n' flowers is

$=0.50*n$

$=0.50n$

This is supposed to be $20

so, we can set it equal to 20

$20=0.50n$

now, we can solve for n

we get

$n=40$

we are given

she makes $6.00 on every $20 worth sold

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total cost is 14

or cost of 40 flowers is $14

now, we can find cost of one flower

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3 years ago

Describe the relationship between the values of the digits in the number 9999999.

abruzzese [7]

They are all the same number

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4 years ago

At XYZ Middle School, 40 percent of the 500 students ride their bikes or walk to school. How

iVinArrow [24]

Answer:

200 students either bike or walk to school

Step-by-step explanation:

0.4 = 40%

500 * 0.4 = 200

40% is 200 students

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3 years ago

The average of six numbers is 4. If the of two of those numbers is 2, what is the average of the other four numbers?

matrenka [14]

Answer:

Step-by-step explanation:

total sum of the 6 numbers

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average of other 4 numbers

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6 0

3 years ago