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3 years ago

3/11 divided by 2/9 equals what

Mathematics

2 answers:

KonstantinChe [14]3 years ago

7 0

Answer: 1 and 5/22

Step-by-step explanation: In this problem, we have 3/11 divided by 2/9. Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the division sign to multiplication and flip the second fraction.

So, 3/11 ÷ 2/9 can be rewritten as 3/11 × 9/2.

Now, we are simply multiplying fractions. To multiply fractions, we multiply across the numerators and multiply across the denominators.

$(\frac{3}{11}) (\frac{9}{2}) = \frac{27}{22}$

The fraction 27/22 can be written as a mixed number by dividing the denominator into the numerator.

Image provided.

Therefore, 3/11 divided by 2/9 = 1 and 5/22.

Grace [21]3 years ago

6 0

Answer:

When dividing fraction, it's always a good idea to use the copy-dot-flip method, or copy-dot-reciprocal.

So in this example it would be

3/11 * 9/2 = 1.227 or 1.22

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What is the first term in the sequence for which d = -2 and a7 = 3?

AnnZ [28]

Answer:

Final answer is c. 15

Step-by-step explanation:

We need to find about what is the first term in the sequence for which d = -2 and a7 = 3

We will use nth term formula of arithmetic sequence.

$a_n=a+\left(n-1\right)d$

we have been given a7 that means 7th term is 3

so plug n=7, d=-2 and a_n=3 into above formula

$3=a+\left(7-1\right)(-2)$

$3=a+6(-2)$

$3=a-12$

$15=a$

Hence final answer is c. 15

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