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vodomira [7]
3 years ago
7

How can we find the sum of x+5 and 2x+3

Mathematics
2 answers:
Nonamiya [84]3 years ago
8 0

Answer:

3x+8

Step-by-step explanation:

We add the variables. 1x + 2x = 3x

We then add the constants. 5 + 3 = 8

We then add these together.  3x + 8

valina [46]3 years ago
5 0

find the sum of the first 20 terms of the arithmetics

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Jacob put hummingbird feeders in his garden. To make the food for his small feeder, he mixed sugar with warm water. He used the
Umnica [9.8K]

Answer:

Step-by-step explanation:

The smaller feeder is sweeter as it has more sugar molecules per unit of water than the larger feeder.

7 0
2 years ago
Roll one fair, six-sided die, numbered 1 through 6. Let A be the event you will roll an even number. Let B be the event you will
11111nata11111 [884]

Answer:

a) not independent

b) not mutually exclusive

Step-by-step explanation:

Given:

- A 6 sided die is rolled

- Event A is rolling an even number

- Event B is rolling a prime number

Find

- (a) Are A and B independent events?

- (b) Are A and B mutually exclusive events?

Solution:

- We will find the probability of each event:

                       set(Even number: A) = {2, 4, 6} = 3 outcomes

                       set(Prime number: B) = {2 , 3, 5} = 3 outcomes

- The probabilities are:

                        P(A) = 3/6 = 0.5

                        P(B) = 3/6 = 0.5

- For Event A and B to be independent then the following condition must match:

                        P ( A & B ) = P(A)*P(B)

                        set (A&B) = {2} = 1 outcome

                        P(A&B) = 1/6

                        1 / 6 = 0.5*0.5

                        1/6 = 0.25         ...... NOT INDEPENDENT

- For Event A and B to be mutually exclusive then the following condition must match:

                        P(A&B) = 0

                        P(A&B) = 1/6

Hence, we can say the events are NOT MUTUALLY EXCLUSIVE

7 0
3 years ago
Today Ian wants to run less than 7/12 mile which of the following distances is less than 7/12?
dybincka [34]

A fraction with a denominator of 4 that is less than 7/12 miles is 1/4.Let the fraction be  x/4. Since this fraction must be less than 7/12 miles, we can write the inequality,  x/4 < 7/12.We now solve the inequality for x to obtain,  x<7/12(4).

This simplifies to x<7/3

This implies that x<2 1/3

This is distance so x is positive.

So we can choose x=1 or x=2.

Therefore the possible fractions include 1/4 or 2/4.

In the simplest form, the most appropriate fraction is 1/4





6 0
3 years ago
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Find 12 ÷ 3/5. Show or explain your reasoning.
scZoUnD [109]
20 because when you divide 12 by 3/5 you get 20 use a calculator
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It is 32% I'm pretty sure

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