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vichka [17]
3 years ago
10

You are randomly selecting 1 number from the numbers 1 through 20, inclusive. What is the probability that

Mathematics
2 answers:
quester [9]3 years ago
6 0

Answer:

9/20 Chance or 45%

Step-by-step explanation:

1,2,3,5,7,11,13,17,19 are all prime numbers. So that's 9 numbers.

Ugo [173]3 years ago
3 0
The probability is 45% hope this helps!
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Which property is used to write a(x + y) = ax + ay
stealth61 [152]
The Distributive Property. You are distributing a to x + y.

Hope this helps!
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3 years ago
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Last week Amy ran 31 miles more than Ryan. Amy ran 40 miles. How many miles did Ryan run? I have to write an equation and solve
Korvikt [17]
Variable x is ryans miles
amy-ryan=answer
40-31=x
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ryan ran 9 miles
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40-31=x is the equation
8 0
3 years ago
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You’ve been asked to order cake for your school dance. Here’s a formula for the scenario: z=xa/y
olga nikolaevna [1]

Answer:

The number of cake for order is 15 cakes .

Step-by-step explanation:

Given as :

Total number of people to attend the dance = x = 60

The number of slices each person will eat = A = 2 slices

The number of slices per cake = y = 8 slices

Let The number of cake for order = z

<u>Now, According to question</u>

Total slices of cake required for 60 people when each people eat 2 slices = total number of people × number of slices each person will eat

i.e Total slices of cake required for 60 people when each people eat 2 slices = x × A

Or, Total slices of cake required for 60 people when each people eat 2 slices = 60 × 2 slices

Or,Total slices of cake required for 60 people when each people eat 2 slices = 120 slices

<u>Again</u>

∵ number of slices per cake = 8

∴ The number of cake for order = \dfrac{\textrm Total slices of cake required for 60 people when each people eat 2 slices}{\textrm number of slices per cake }

Or, z = \frac{x\times A}{y}

i.e z = \frac{120}{8}

∴   z = 15 cakes

So,The number of cake for order = z = 15 cakes

Hence,The number of cake for order is 15 cakes . Answer

7 0
3 years ago
Solve this equation for x by graphing.<br> -4x - 1 = 5^x + 4 <br> Please help! Asap
Lina20 [59]

Answer:

-1.28

Step-by-step explanation:

You would put these two equations into a graphing ccalculator:

y = -4x - 1

and

y= 5^x + 4

Wherver they intersect is your answer.

These two happen to intersect at (-1.28,4.13)

Since the equation has x-values, you would give the first number (x-coordinate) as your answer.

 

7 0
3 years ago
Subtract (-4x - 2) - (13x + 1)
sp2606 [1]

Answer:

-17x-3

Step-by-step explanation:

Distribute the negative to the second part of the equation. remove the parenthesis from the first part and then add like values.

-4x-2-13x-1

-4x-13x-2-1

-17x-3

6 0
3 years ago
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