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dalvyx [7]
3 years ago
9

HELP PLEASE I WOULD APPRECIATE IF SOMEONE HELPS PLEASE AND THANKS

Mathematics
1 answer:
RideAnS [48]3 years ago
8 0
It's the last one. 15/2 is 7.5.

Therefore you must do the same to the 9. Divide 9 by 7.5 To give you 1.2 and that's your answer.
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Car travels 85miles at a speed of 34mph how many minutes did the journey take?
vredina [299]
The journey took 150 minutes. 
3 0
3 years ago
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Determine which gym's membership grows faster from Month 2 to Month 4 by calculating the average rates of change.
nlexa [21]

Answer:

Gym A is growing faster

Gym A gained 13 members between months 2 and 4

Gym B gained 10 members between months 2 and 4

Step-by-step explanation:

Gym A:  (2,20) (4,46)

rate of change = (46-20)/(4-2)  =  26/2 or 13

Gym B:  (2,40) (4,60)

rate of change = (60-40)/(4-2)  =  20/2 or 10

8 0
2 years ago
So I have to compute the following but i don't know what they mean any help?
Gelneren [198K]

Answer:

Step-by-step explanation:

This is a Combination (as in permutation vs combination) question the symbol (n r) refers to "n choose r". This is sometimes written as nCr

i.e the question is asking you to find how many combinations each will yield when you chose r items from n item without repetition and order does not matter.

I will only do the first question for you and you can just follow the same steps to solve the rest of the questions.

Recall that

nCr=\frac{n!}{(r!)(n-r)!}

Consider question a) we are given (5 1) or ₅C₁

we can see that n = 5 and r = 1

If we substitute this into the formula:

₅C₁ = (5!) / [ (1!)(5- 1)!]

= (5!) / [ (5- 1)!]

= (5!) / (4!)

= (5·4·3·2·1) / (4·3·2·1)

= 5

hence ₅C₁ = 5

7 0
3 years ago
Read 2 more answers
An oil tank in the shape of a cylinder has a diameter of 40 feet and a height of 32 feet. Which expression can be used to find t
Volgvan

The volume of a cylinder is pi*r^2*h

The radius is half the diameter, so 40/2=20, and the radius is 20 ft.

Plugging in: pi*20^2*32=pi*400*32=12800pi=40212.38597

So the volume is about 40212.4 ft^3 and the expression we used is pi*20^2*32

Hope this helped!

8 0
3 years ago
If 28 people want to go to Italy and 16 percent of people want to go to France and 48 people want to go to Korea how many people
topjm [15]
It should be 8 people.
16% of 100 people is 16 people.
16+28+48=92
100-92= 8 people
3 0
3 years ago
Read 2 more answers
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