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Likurg_2 [28]
3 years ago
10

the number of students in the art club is 3 more than twice the number of students in the drama clud.

Mathematics
1 answer:
USPshnik [31]3 years ago
3 0

we need to know how many their are in the drama clud first

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Tinh can row at a rate of 6 mph in still water. It takes her 2 hours to row upstream from a dock to a park. She then rows back t
scZoUnD [109]

Answer:

Option A is correct, i.e. 3 mph.

Step-by-step explanation:

Tinh can row at a rate of 6 mph in still water.

Suppose the speed of the river current is X mph.

Then Upstream speed = (6-X) mph.

And Downstream speed = (6+X) mph.

It takes her 2 hours to row upstream from a dock to a park. She then rows back to the dock, and it only takes 40 minutes.

It means Distance upstream = Distance downstream.

Speed upstream x Time upstream = Speed downstream x Time downstream.

(6-x) * 2 = (6+x) * 40/60

12 - 2x = 4 + 2x/3

12 - 4 = 2x/3 + 2x

8 = 2x/3 + 6x/3 = 8x/3

x = 3 mph.

Hence, option A is correct, i.e. 3 mph.

7 0
3 years ago
Read 2 more answers
1. what is the distance between -3 and -5 ?<br>2. what is the distance between -5 and -3 ?​
Naddik [55]

Answer:

-2 for both questions

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help asap......​
levacccp [35]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
V = 1/3 πr^2h<br> Pls help
SpyIntel [72]
Well if we are solving for V then the answer is V= V = πr^2h/3
If your solving for a different letter then tell me. Thanks
5 0
3 years ago
Tickets for a school play sold for $7.50 for each adult and $3.00 for each child. The total receipts for 118 tickets totaled $69
NeX [460]
X= number of adult tickets
y=number of child tickets.
we can suggest this system of equations: 
x+y=118                 ⇒x=118-y
7.5x+3y=696

we can solve this system of equations by substitution method:
7.5(118-y)+3y=696
885-7.5y+3y=696
-4.5y=-189
y=-189/-4.5
y=42

x=118-y
x=118-42
x=76

Answer: the number of adult tickets sold was 76. 
7 0
3 years ago
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