4 years ago

I. How long is the lunch period?

Mathematics

1 answer:

Marina86 [1]4 years ago

6 0

II, III, and IV are statistical questions about lunchtime that anticipate variability.

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3 years ago

The outside temperature at midnight was 3.4°C. The temperature then changed at a constant rate of -0.78°C per hour for 8 hours.

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3 years ago

At a local gym you go to, you either pay $90 fee for a monthly pass, and an additional $4 for each time you decide to go to the

Vikentia [17]

Answer: C. 10.

Step-by-step explanation:

Let x = Number of times you have to go to the gym in order for it to cost the same amount.

Given: Monthly pass fee = $90

Additional charge = $4

Total amount = (Monthly fee) + (Number of times) (Additional charge)

Total amount = 90+4x (i)

Payment for each time you go to the gym = $13

Total amount = 13x (ii)

From (i) and (ii) , we get

$13x=90+4x\\\\\Rightarrow\ 13x-4x=90\\\\\Rightarrow\ 9x=90\\\\\Rightarrow\ x=\dfrac{90}{9}\\\\ \Rightarrow\ x= 10$

Hence, the number of times you have to go to the gym in order for it to cost the same amount= 10

Hence, the correct option is C. 10.

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3 years ago