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Leto [7]
3 years ago
9

Dave has had a gym membership for 10 weeks. He goes to the gym 5 times a week. Each visit, he exercises for 1.75 hours. He spend

s 0.5 hours on the treadmill and the rest he spends on the stationary bicycle. How much time does Dave spend on the stationary bicycle in a week?
Mathematics
1 answer:
densk [106]3 years ago
8 0
75 x 5 = 375 hour in a week 
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Answer:

<em>( 4, 11 ) , ( - 4, 27 ) </em>

Step-by-step explanation:

f(x) = x² - 2x + 3

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x² - 16 = 0

( x + 4 )( x - 4 ) = 0

x_{1} = - 4

x_{2} = 4

f(x) = y_{1} = - 2( - 4 ) + 19 = 27

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Olenka [21]

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Step-by-step explanation:

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3 years ago
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Tanzania [10]
You can write three equations in the numbers of nickels (n), dime (d), and quarters (q).
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The collection includes 11 nickels, 7 dimes, and 5 quarters.

_____
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From the second equation,
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And from the first,
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7 0
2 years ago
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A=1/2h(B+b);A=81,B=8,b=1 what is h
Semenov [28]

Answer:

81=1/2h×9,

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7 0
2 years ago
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