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Aleks04 [339]
3 years ago
13

Here are six number cards.

Mathematics
1 answer:
Helen [10]3 years ago
6 0

Answer:

See explanation

Step-by-step explanation:

The first pair is (-4 and 8)

Because if we add those two values, i. e., 8 + (-4), we will get 4.

Again, the second pair is (-2 and 6). In that case, if we also add those two values, that is, 6 + (-2), we will get 4.

Finally, the third pair is (-1 and 5). Again, we will add the two values. 5 + (-1) = 4.

In each case, we can see that the addition of each pair is 4.Therefore, the total is similar in each pair after arranging the cards.

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28% of 49 is 13.72. So subtract that from 49 and you get 35.28. 35.28 is the price after the sale
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Step-by-step explanation:

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3 years ago
Simplify (3+√5)(3+√2)
ANEK [815]

When we simplify (3 + √5)(3 + √2), the result obtained is:

9 + 3√2 + 3√5 + √10

<h3>Surd operation </h3>

a√b × c√d = (a × c)√(b × d)

<h3>How to simplify (3 + √5)(3 + √2)</h3>

(3 + √5)(3 + √2)

Expand by clearing the bracket

3(3 + √2) + √5(3 + √2)

9 + 3√2 + 3√5 + √10

Thus,

(3 + √5)(3 + √2) = 9 + 3√2 + 3√5 + √10

Learn more about surd:

brainly.com/question/24700530

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3 0
2 years ago
In a bag of marbles 12% were blue 18% were green and the rest were purple if the bag has 150 marbles how many were blue or green
baherus [9]

Answer:

45

Step-by-step explanation:

12 % of the marbles are blue, and

18 % of the marbles are green, so

30 % of the marbles are either blue or green.

There are 150 marbles.

30 % × 150 = 0.30 × 150 = 45

The number of blue or green marbles is 45.

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Step-by-step explanation:

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