2 years ago

Show that 30.1111... is a rational number.

1 answer:

8 0

We know that 30.1111... is a rational number because it ends in repeating decimals. We can show this by writing the number as a fraction using algebra.

x = 30.1111....

10x = 301.1111....

Subtract both sides by x

10x - x = 301.1111.... - 30.1111...

9x = 271

x = 271/9

The number can be rewritten as 271/9, which you can verify is the same number by checking on a calculator.

You might be interested in

2 - ( - 4.51) = _____________

murzikaleks [220]

Your answer is, 6.51.

6 0

2 years ago

Read 2 more answers

Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of bottles

kirza4 [7]

Answer:

The equation for this should be 1.49x + 1.25y = 100

Barbara needed to find the total of iced teas AND the total of water bottles that sells.

Step-by-step explanation:

7 0

3 years ago

Can you tell me the answers, if you do thanks

zloy xaker [14]

$3 \frac{8}{11}$

$4 \frac{31}{42}$

$7 \frac{11}{24}$

10.

$2 \frac{79}{90}$

5 0

2 years ago

A painter worked for 5 hours. He spent 25% of his time painting the kitchen,

il63 [147K]

Answer:

a) 1 hours and 25 minutes

b) 2 hours and 25 minutes

c) 1 hour

d) 30 minutes

Step-by-step explanation:

25/ 100 out of 5 = 1.25

45/100 out of 5 = 2.25

20/100 out of 5 = 1

10/100 of 5 = .5

8 0

3 years ago

Help help help por favor por favor please

Ad libitum [116K]

Answer:

cant help im sorry

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers