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astra-53 [7]
3 years ago
10

A. 4.5 B. 10 C. 5 D. None of the above ??

Mathematics
1 answer:
prohojiy [21]3 years ago
8 0

Set up a ratio:

12/24 = x/9

Cross multiply:

24x = 108

Divide both sides by 24:

X = 4.5

The answer is 4.5

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A wheel spines at a rate of 41 revolutions per minute. how many revolutions per hour does it spin
ch4aika [34]
This is simple math, you know 60 minutes in 1 hour, so do 60 x 41 = 2,460


So it spins 2,460 times per hour.


Hope this helps!
8 0
3 years ago
Please i need help urgently!!!
gladu [14]

Answer:

I'm pretty sure that it's just the negatives of the coordinates, (-3,-4) (-3,-1) (-5,-1). I don't know for sure tho, sorry if its wrong.

Step-by-step explanation:

6 0
2 years ago
Dad is 4 times as old as his son Jim. In 10 years, Dad's age will be 20 years more than twice Jim's age. How old is Jim? 10 year
mezya [45]
Jim is currently 15 years old!!
8 0
3 years ago
3. Mr. James told Jill he would charge her $15 per hour, plus parts, to fix her bicycle.
ad-work [718]

Answer:

512

Solution:

so first you multiply 15 times 32 and get 480 than you add 32 and get 512.

7 0
3 years ago
A hot air balloon descends to the ground. The function a(t) = 210 – 15t can be used to describe the altitude of the balloon as i
Mashutka [201]

Answer:

t represents the time in minutes since the balloon started descending.

a(t) represents the altitude of the balloon at t minutes.

a(5.5) gives the altitude at 5.5 minutes.

8 0
3 years ago
Read 2 more answers
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