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KiRa [710]
3 years ago
12

8:12=6:a what is the value of a

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0

Answer:

9

Step-by-step explanation:

\frac{8}{12}=\frac{6}{a}

\frac{2}{3}=\frac{6}{a}

2a=6\cdot{3}

2a=18

a=\frac{18}{2}

a=9

statuscvo [17]3 years ago
5 0

Answer:

a = 9

Step-by-step explanation:

So in this case you just cross multiply

8 : 12 = 6 :  a

6(12) = 8(a)

72 = 8a

Divide both sides by 8

a = 9

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What number could be added to 0.40 mL for the level pf precision to be 0.01mL?
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Answer:

-0.39mL

Step-by-step explanation:

Let x be the number.

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Write two ratios equivalent to 24 : 9.
notsponge [240]

Answer:

8:3

16:6

Step-by-step explanation:

First, let's check if 9 and 24 have any common factor. If they do have any common ones, we must find the GCF (greatest common factor).

Factors of 9: 1, 3, 9

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

The common factors both of the numbers share and 1 and 3. To find the GCF, simply compare one of the factors to the other.

1 < 3

Now that we know the GCF, we can divide the two numbers in the ratio 24 : 9 by it (3).

24:9

24/3:9/3

<u>8:3</u>

Now that our ratio is simplified, it's going to be much easier to find more ratios that are equivalent. <u>8:3</u> is already one equivalent ratio, but if we multiply each number in the ratio by any other number, we can get a new equivalent ratio. Let's multiply each number in the ratio by 2:

<u>8:3</u>

8 ⋅ 2:3 ⋅ 2

<u>16:6</u>

<u></u>

So, another equivalent ratio to 24:9 (and <u>8:3</u>) is <u>16:6</u>.

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2 years ago
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