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Zanzabum
3 years ago
14

Chloe drives from her house to her grandmas house 48 miles away in an hour and 12 minutes. How fast was she driving on average?

Mathematics
1 answer:
mestny [16]3 years ago
5 0

Answer:

40 miles per hour

Step-by-step explanation:

change hours and minutes to hours

12 minutes  = 12 minutes * 1 hr/ 60 minutes = 12/60 hrs

12/60 = 1/5 = .2 hours

1 hours 12 minutes = 1.2 hours


48 miles in 1.2 hours

48/1.2 = 40 miles/hour


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Joe has 14 toys in a collection he buys 12 new toys and sells 8 out of the old collection would you subtract 26-8 which would gi
NeTakaya

Answer:

yes I think that's right because 14-12=26 so if you subtract 26 from 8 which that will give you 18

4 0
3 years ago
PLEEEEEEEAAAAAAASSSSSSSSSSEEEEEEEEEEE help me!!!!!!!!!!
defon

Answer:

\boxed{\sf \ \ \ \dfrac{18}{(x-7)(x+12)(x+30)} \ \ \ }

Step-by-step explanation:

hello,

first of all we will study the quadratic expressions

we can write that, (the different answers provide good clues :-) )

x^2+5x-84=(x-7)(x+12)

and

x^2+23x-210=(x-7)(x+30)

so first of all as we cannot divide by 0 we need to take x different from 7, -12 and -30 and then we can write

\dfrac{1}{x^2+5x-48}-\dfrac{1}{x^2+23x-210}=\dfrac{1}{(x-7)(x+12)}-\dfrac{1}{(x-7)(x+30)}\\\\=\dfrac{(x+30) -(x+12)}{(x-7)(x+12)(x+30)}=\dfrac{x+30-x-12}{(x-7)(x+12)(x+30)}\\\\=\dfrac{18}{(x-7)(x+12)(x+30)}

hope this helps

7 0
3 years ago
Show Your Knowledge
crimeas [40]

9514 1404 393

Answer:

  • 15 nickels
  • 3 dimes

Step-by-step explanation:

Let d represent the number of dimes Molly has. Then she has 18-d nickels, and the total value (in cents) of her coins is ...

  5(18 -d) +10d = 105

  5d +90 = 105 . . . . . . simplify

  5d = 15 . . . . . . . . . . . subtract 90

  d = 3 . . . . . . . . divide by 5; number of dimes

  18-d = 15 . . . . . number of nickels

Molly has 3 dimes and 15 nickels.

8 0
3 years ago
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Answer:

Loss is 250-175=75 rupees

Step-by-step explanation:

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3 years ago
Determine the median of the data. 2, 3, 3, 4, 5, 7, 9
satela [25.4K]
The median is 4 because 2 x’s out 9, 3 x’s out 7, 3 x’s out 5, and 4 is the only remaining number.
3 0
3 years ago
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