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3 years ago

What three different improper fractions equal 4 1/2

1 answer:

3 0

First you make 4 1/2 into an improper fraction by multiplying 4 by 2, and then adding 1. You get 9/2, which is your first improper fraction. Then, you can just rewrite it in different ways, such as 18/4 (9/2 × 2), or 27/6 (9/2 × 3). Hope this helps!

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Alex and Bryan are giving an exam. The probability Alex gets an A is 0.9, the probability Bryan gets an A is 0.8 and the probabi

VARVARA [1.3K]

Answer:

The probability that either Alex or Bryan get an A is 0.9

Step-by-step explanation:

Before we proceed to answer, we shall be making some important notation;

Let A = event of Alex getting an A

Let B = event of Bryan getting an A

From the question, P(A) = 0.9, P(B) = 0.8 and P(A ∩ $B^{c}$ ) = 0.1

We are to calculate the probability that either Alex or Bryan get an A which can be represented as P(A ∪ B)

We can use the addition theorem here;

P(A ∪ B) = P(A) + P(B) - P(A ∩ B) .......................(i)

Also,

P(A) = P(A ∩ $B^{c}$ ) + P(A ∩ B) .........................(ii)

We can insert ii into i and we have;

P(A ∪ B) = P(A ∩ $B^{c}$ ) + P(A ∩ B) + P(B) - P(A ∩ B) = P(A ∩ $B^{c}$ ) + P(B) = 0.1 + 0.8 = 0.9

5 0

3 years ago

The miniature gold scores for 7 friends are 23, 30, 32, 35, 14, and 23. What is the mean golf score for this group of friends ?

Andrej [43]

If you add them all together, you'd get 157. Then you divide by 7 and you'd get 31.4

6 0

4 years ago

Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible.

Yanka [14]

Answer:

The sum is $t$ .

Step-by-step explanation:

Consider the provided information.

The given expression are - 10t and t - 10t

We need to find the sum of the opposite of -10 t and t - 10t.

The opposite of -10 t is 10 t.

$10t+(t-10t)$

Remove the parenthesis.

$10t+t-10t$

Simplify the number

$10t-10t+t$

Use Additive inverse.

$t$

Hence, the sum is $t$ .

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3 years ago

100 Points. Easy and fun question.

FinnZ [79.3K]

Answer: You and Sarah went to the gas station to get sodas. Sarah got a Dr. Pepper and it cost $2.50. You got a Sprite and it cost $3.00. You notice Sarah is short on change and want to help her. You have a $10 Bill and are going to pay for it. How much change will you get back?

Step-by-step explanation:

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4 years ago

Mr. Harnish purchased a Landau Atlantis ski boat for $63,865. He got a 7 year compound interest loan with an interest rate of 2.

Dahasolnce [82]

Answer:

$713218.64

Step-by-step explanation:

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3 years ago