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2 years ago

How to estimate the square root of 32

Mathematics

1 answer:

ELEN [110]2 years ago

5 0

Answer:

~6.5

Step-by-step explanation:

6*6=32 7*7=49 between 6 and 7 and the middle is 6.5

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Phil strung two sets of lights around the window of his store. The first set of lights blinks every 30s and the second every 45s

Amiraneli [1.4K]

Answer:

Every 90 seconds, the two sets of light blink together.

Step-by-step explanation:

Given that there are two sets of lights.

First light blinks at every 30s and

Second light blinks at every 45s

To find:

How often the sets of lights blink together?

Solution:

As per given statement,

First light blinks after 30s, 60s, 90s, 120s, 150s, 180s, ........

Second light blinks after 45s, 90s, 135s, 180s, .....

If we look at the common time, shown by underlining it, the two sets of light blink at the same time after 90s, 180s, ...... and so on.

So, the two lights blink together after every 90s.

This can also be solved by finding LCM (Least Common Multiple) of the two numbers i.e. 30 and 45.

Let us have a look at the factors of 30 and 45.

30 = 2 $\times$ 3 $\times$ 5

45 = 3 $\times$ 3 $\times$ 5

So, LCM = 2 $\times$ 3 $\times$ 3 $\times$ 5 = 90

So, after every 90s, the lights will blink together.

5 0

2 years ago

Find the product. Simplify, if needed. 2 1/8×1 1/6×3

Eduardwww [97]

0.00994318181 this can be your answer

3 0

2 years ago

Arrange 88,667 132,414 23,112 83,001 to smallest to largest

Zanzabum

Answer:

001,23,83,88,112,132,667

Step-by-step explanation:

Are you kidding me that you need help on this?

6 0

3 years ago

Read 2 more answers

Solve for the value of k

wel

Answer:

k=13

Step-by-step explanation:

3k+6+4k-7+90=180

7k+89=180

k=180-89/7

k=13

8 0

2 years ago

Peaches are being sold for $2 per pound...

NARA [144]

Answer:

Its D, and the thing is saying my answer needs 20 characters aw man

8 0

3 years ago