3 years ago

3/4 divided by w equals what

Mathematics

1 answer:

Ronch [10]3 years ago

4 0

Answer:

3/4w

Step-by-step explanation:

3/4 ÷w = 3/4 × 1/w = 3/4w

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Which of the following expressions correctly uses the properties of summations to represent

madam [21]

Answer:

Option C is correct.

$7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18$

Step-by-step explanation:

Given the expression: $\sum_{i=1}^{18} (7i^2+9)$

Using properties of summation:

$\sum_{i=1}^{n} (a+bi) =\sum_{i=1}^{n} a + \sum_{i=1}^{n} bi$

$\sum_{i=1}^{n} a = an$

Using properties of summation in the given expression we have;

$\sum_{i=1}^{18} (7i^2+9)$

= $\sum_{i=1}^{18} 7i^2 + \sum_{i=1}^{18} 9$

= $7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18$

Therefore, the following given expression uses the properties of summation to represents is, $7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18$

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8 (2x - 14) + 13 = 4x -27

distribute 8 through the parentheses

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combine like terms

16x - 99 = 4x -27

subtract 4x from each side

12x - 99 = -27

add 99 to each side

12x = 72

divide each side by 12

x = 6

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Wendell paid $12.85 for sunglasses and $2.75 for chips and a drink. How much did Wendell spend?

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15.6 dollars s how much money Wendell spent

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Step-by-step explanation:

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Step-by-step explanation:

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