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BARSIC [14]
3 years ago
9

A copy machine can print 480 every 4 minutes a teacher printed 720 how long did it take

Mathematics
1 answer:
Nutka1998 [239]3 years ago
4 0

Answer:

6 minutes

Step-by-step explanation:

480/4 = 120 , 720/120 = 6  minutes Hope this helps

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Tom throws a ball into the air.
hram777 [196]
<span>h = -8t² + 40t

dh/dt = 0
⇒ d/dt(</span><span>-8t² + 40t) = 0
⇒ -16t + 40 = 0
⇒ 16t = 40
⇒ t = 40/16 = 2.5s

So it takes 2.5 seconds to reach highest point

h = -8×2.5² + 40×2.5 = -50 + 100 = 50
Ordered pair: (h,t) = (50,2.5)
</span>
6 0
3 years ago
if the balance at the end of eight years on an investment of $630 that has been invested at a rate of 9% is $1083.60, how much w
Zielflug [23.3K]

Answer: The interest is $453.60.

The total amount includes principal + interest. The principal was 630 and the total amount was 1083.60.

1083.60 - 630 = 453.60.

Step-by-step explanation:

8 0
3 years ago
Bob is a travel agent. He receives 7% commission when he books a cruise for a customer. How much commission will he receive for
Kamila [148]

Answer:

$273

Step-by-step explanation:

$3900= 100%

$39 = 1%

39(1%)*7= $273 (7%)

5 0
3 years ago
I need the answer written
padilas [110]

Answer:

x = 180 - (31 + 40)

Step-by-step explanation:

x = 180 - (31 + 40)

5 0
3 years ago
Read 2 more answers
Please help!
AfilCa [17]

Answer:

a.) P(HH|C)=2/5

Explanation:

Given following:

  • P(HH) = 7
  • P(C) = 10
  • P(HH ∩ C) = 4
  • P(HH ∪ C) = 13

Solving steps:

\sf P(HH|C) = \dfrac{P(HH \cap C) }{P(C)}

\sf P(HH|C) = \dfrac{4 }{10}

\sf P(HH|C) = \dfrac{2 }{5}

8 0
1 year ago
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