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3 years ago

5

Divide 33 photos into two groups so the ratio is 4 to 7

1 answer:

Artist 52 [7]3 years ago

5 0

33 photos in a 4x to 7x ratio

4x + 7x = 33
11x = 33
x = 3

33 photos can be put in a 4(3) to 7(3) ratio

which is a 12 to 21 ratio

so 12 photos on one side, and 21 on the other side to get the ratio of 4 to 7

Note:
<span>a(b) = ab = a x b = a times b</span>

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Answer:

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Step-by-step explanation:

-(4x+6)<2(5x+9)+2x

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We want to now gather variable terms on one side of the inequality and constants (terms without variables) on the opposing side.

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Divide both sides by 16:

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3 years ago

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olga55 [171]

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<h3>How to calculate the correlation coefficient</h3>

The correlation coefficient (r) is calculated as:

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Using the given parameters, we have:

$r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1257^2][20 * 836 - 116^2}}$

Evaluate the exponents

$r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1580049][20 * 836 - 13456}}$

Evaluate the products

$r = \frac{164980 - 145812}{\sqrt{[1976460 - 1580049][16720 - 13456}}$

Evaluate the differences

$r = \frac{19168}{\sqrt{[396411*3264}}$

Evaluate the product

$r = \frac{19168}{\sqrt{1293885504}}$

Evaluate the root

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Evaluate the quotient

$r = 0.53$

Hence, the correlation coefficient is 0.53

Read more about correlation coefficient at:

brainly.com/question/1564293

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