All categories

3 years ago

Is 4/2 + 5/2 a rational or irrational number

Mathematics

2 answers:

kirill115 [55]3 years ago

7 0

Hey there! :D

Rational number- a number that can be put into a fraction, ratio, or is a repeating decimal.

Irrational number- a number that cannot be put into a fraction or ratio, and it's decimals never repeat.

So, 4/2+5/2= 9/2

9/2 is already a fraction, so we know it has to be a rational number.

I hope this helps!

~kaikers

sesenic [268]3 years ago

6 0

As both 4/2 and 5/2 are rational Numbers and Sum of rationals is a Rational Number.
Therefore, 9/2 is a Rational Number.

You might be interested in

Find the solution to the system of equations using substitution.<br> 3x = 8<br> 3x + y = 15

Tju [1.3M]

Step-by-step explanation:

Step 1: Substitute 8 in the equation.

Step 2: Minus 8 from 15.

7 0

3 years ago

From a barrel of colored marbles you randomly select 7 blue, 5 yellow, 8 red, 4 green, and 6 purple marbles. find the experiment

FrozenT [24]

1/3 is my answer to the question

8 0

3 years ago

ABC is to be reflected across line M to create triangle ABC which best describes the location of B

lara31 [8.8K]

Is there an image showing the line?

6 0

4 years ago

Read 2 more answers

Bob won a $200,000 lottery. He invests part of the money in real estate with an annual return of 3% and the rest in a money mark

SVETLANKA909090 [29]

Answer:

Bob invested $50,000 in real state and $150,000 in a money market.

Step-by-step explanation:

Assuming that x is the investment in real state:

(200,000-x)*0.045 + x * 0.03 = 8,250

Apply distributive property:

(200,000*0,045) - 0.045x +0.03x = 8,250

9,000 - 0.045x +0.03x = 8,250

We must clear x:

- 0.045x +0.03x = 8,250 - 9,000

-0.015x = -750

x = -750/-0.015

x = 50,000

So, the invest in real state is $50,000.

$200,000 - $50,000 = $150,000 is the invest in a money market.

4 0

3 years ago

Katherine is considering two new cell phone plans. She doesn't want to spend more for minutes she won't use. One plan allows up

mojhsa [17]

Answer:

The first plan of $49 will be best plan for her.

Step-by-step explanation:

Katherine used 1479 minutes call in the last 6 months.

So, the average monthly call that Katherine made is $\frac{1479}{6} =246.5$ minutes.

Now, there are two plans for mobile recharge.

One is 250 minutes call time for $49 and the other is 350 minutes call time for $65.

Since 246.5 < 250 and Katherine does not want to spend more for minutes she won't use, then the first plan of $49 will be the best plan for her. (Answer)

8 0

4 years ago