2 years ago

I added 18 to 3 times a certain number,the result is equal to 5 times the number.what is the number?

Mathematics

1 answer:

stiks02 [169]2 years ago

3 0

The number is 13 to your answer

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Nina has $5 and $10 bills in her wallet. She has a total of 13 bills with a value of $85. How many of each type of bill does she

matrenka [14]

Answer:

I got eleven 5 dollar bills and and I got 3 ten dollar bills

Step-by-step explanation:

what i did was start out with 85/5, then that was 17 so I started minusing 2 fives to = 1 ten so 15 5's and 1, 10 then so forth 13 5 dollar bills and 2 10 dollar bills, 11 5 dollar bills and 3 ten dollar bills. y=-2x+17

5 0

2 years ago

Find the circumference of a circle with a radius of 10. Leave in terms of pi

Alexus [3.1K]

The formula of a cirumference of a circle:

$C=2\pi r$

r - radius

We have r = 10. Substitute:

$C=2\pi(10)=20\pi$

<h3>Answer: C = 20π</h3>

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3 years ago

If A and B are independent events, P(A) = 0.25, and P(B) = 0.3, what is P(AB)?

Marrrta [24]

Answer:

$P(A) = 0.25, P(B= 0.3$

And if we want to find $P(A \cap B)$ we can use this formula from the definition of independent events :

$P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075$

And the best option would be:

$P(A \cap B) =0.075$

Step-by-step explanation:

For this case we have the following events A and B and we also have the probabilities for each one given:

$P(A) = 0.25, P(B= 0.3$

And if we want to find $P(A \cap B)$ we can use this formula from the definition of independent events :

$P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075$

And the best option would be:

$P(A \cap B) =0.075$

3 0

2 years ago

Inverse of the function f(x) = 2x + 5?

andrew-mc [135]

Answer:

$y^{-1} =\frac{1}{2} x-\frac{5}{2}$

Step-by-step explanation:

3 0

2 years ago

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Two consecutive positive integers have a product of 110. What are the integers

White raven [17]

That are 10 and 11
10 * 11 = 110

8 0

3 years ago

Read 2 more answers