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Vedmedyk [2.9K]
3 years ago
6

Jana is training for a triathlon that includes a 112 mile bike ride. Today she rode her bike 12 miles in 45 minutes. What is Jan

a rate in miles per hour
Mathematics
1 answer:
prisoha [69]3 years ago
3 0
12mi / (3/4) hours = 1mi / ? Hours. Set up this proportion and cros multiply to find ?
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Marty is saving money to buy a new computer. He received $200 for his birthday and saves $150 of each week’s paycheck.
Alex777 [14]
Yes it does, it is proportional because it increases by the same amount at a constant time (which is each week's paycheck). The constant is the 150. i may be wrong sorry if so.
8 0
3 years ago
12) I can run 3.6 miles in 30<br> minutes. How far can I run in<br> 1.5 hours?
raketka [301]
1.5 hours=90 minutes

Because 90 minutes/ 30 minutes is 3, multiply 3.6 miles by 3 and get 10.8 miles as your final answer
3 0
3 years ago
When dropped, a super ball will bounce back to 80% of its peak height,continuing on in this way for each bounce.
Liono4ka [1.6K]

An expression for the height of the nth bounce is 0.80X^N = Height.

<h3><u>Equations</u></h3>

Since when dropped, a super ball will bounce back to 80% of its peak height, continuing on in this way for each bounce, to determine an expression for the height of the nth bounce the following calculation must be performed:

  • X = Initial value
  • 80% = 0.80
  • N = Number of times the ball bounces
  • 0.80X^N = Height

Therefore, an expression for the height of the nth bounce is 0.80X^N = Height.

Learn more about equations in brainly.com/question/2263981

3 0
2 years ago
Someone help me with this please
dmitriy555 [2]

Answer:

the answer is c=34

Step-by-step explanation:

use the pythogoras therom since there is a right angle triangle c2=a2+b2

hope this helped:)

8 0
2 years ago
Read 2 more answers
Plz answer it’s an iready
Dafna11 [192]

Answer:

6(6x + 4y), 12(3x + 2y), 4(9x + 6y)

Step-by-step explanation:

The expressions are equivalent to 36x + 24 y

Hope this helps! :)

5 0
2 years ago
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