3 years ago

The product of 3 and 4 2/5

Mathematics

1 answer:

sasho [114]3 years ago

5 0

Answer:

here! I hope this helps :) the answer is 13.2 or 13 1 (upon 5)

Step-by-step explanation:

3 × 4 2 (upon 5)

=3× 22 (upon 5)

=66 (upon 5)

=13 1 (upon 5)

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A $525 speaker now sells for 393.75 find the percent of change

asambeis [7]

Answer: The percent of change is 25%

Step-by-step explanation:

$525 - $393.75 = $131.25

131.25 (amount of change)/525 ( original amount) x 100

= 25%

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3 years ago

Describe the solutions of 5

djyliett [7]

Answer:

A value, or values, we can put in place of a variable (such as x) that makes the equation true.

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A certain recipe requires 415 cups of flour and 237 cups of sugar. a) If 49 of the recipe is to be made, how much sugar is neede

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3 years ago

Use completing the square to solve for x in the equation (x minus 12) (x + 4) = 9. x = –1 or 15 x = 1 or 7 x = 4 plus-or-minus S

Scrat [10]

Answer:

x = 4 ± $\sqrt{73}$

Step-by-step explanation:

Given

(x - 12)(x + 4) = 9 ← expand the left side using FOIL

x² - 8x - 48 = 9 ( ad 48 to both sides )

x² - 8x = 57

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add ( half the coefficient of the x- term )² to both sides

x² + 2(- 4)x + 16 = 57 + 16

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x - 4 = ± $\sqrt{73}$ ( add 4 to both sides )

x = 4 ± $\sqrt{73}$

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3 years ago

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Inessa [10]

Answer:

±i√55

Step-by-step explanation:

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4 years ago