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stiv31 [10]
3 years ago
6

3. On a morning walk, Betty, Christine and Ann step off together. Their steps measure 50, 75

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0

Answer:

they can all walk 90

Step-by-step explanation:

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Jen factored x² - 4x - 21 as (x - 3)(x + 7) What did she do wrong?
alexgriva [62]

Answer:

She didn't put the sign's in the proper place, it should be ( x + 3 ) ( x - 7 )

Step-by-step explanation:

( x - 3 ) ( x + 7 ) = x² + 7x - 3x - 21 = x² + 4x - 21

( x + 3 ) ( x - 7 ) = x² - 7x + 3x - 21 = x² - 4x - 21

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Answer:

Step-by-step explanation:

12 men and 18 women: x1; 14 days; y1

8 men and 16 women: x2; ?; y2

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This is a direct proportion, thus we can say that:

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3 years ago
List two ways you use energy. How does each example involve a change?
VMariaS [17]
<span>You use energy when you turn on a light in your home, or even when you're driving in a car. You can change how you use energy by riding your bike or skateboard to school, or leaving the light off during the day and opening the blinds.</span>
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3 years ago
The $199.99 game console Amy purchased was on sale for 10% off. How much did Amy pay?
Sonja [21]

Answer:

$179.99

Step-by-step explanation:

Take total cost and multiply by the percent in decimal form

$199.99*0.10

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Subtract the 10% from the original sum

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