All categories

3 years ago

A $58 camera is on sale for 20% off what is the sale price

Mathematics

2 answers:

Afina-wow [57]3 years ago

5 0

Answer:

$46.40

Step-by-step explanation:

20% = .20

58/.20 = 11.6

58-11.6 = $46.40

natali 33 [55]3 years ago

3 0

Answer:

$46.40

Step-by-step explanation:

20% = .20

58/.20 = 11.6

58-11.6 = $46.40

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$\large\boxed{x\dfrac{17}{7}}\\\downarrow\\\boxed{x\in\left(-\infty,\ -\dfrac{117}{7}\right)\ \cup\ \left(\dfrac{17}{7};\ \infty\right)}$

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2 years ago

Which is a factor of 144 − 49x2? 12 - 7x2 72 – 7x2 12 – 7x 72 + 7x

Vinil7 [7]

Answer:

(12-7x)

Step-by-step explanation:

144 − 49x²

by observation, we can see that 144 = 12² and 49 = 7²

hence we can rewrite the equation

144 − 49x²

= 12² - 7²x²

= 12² - (7x)²

recall that the expression x² - y² = (x+y)(x-y)

hence,

12² - (7x)²

= (12 + 7x)(12-7x)

(12-7x) appears in the expression above, hence 12 -7x is a factor

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2 years ago

Read 2 more answers