0.9x12=10.8,, 10.8-6.3=4.5. The number is 12
Answer:
The book has total of 210 pages.
Chris needs to read 63 pages.
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One equation that represents this statement above me could be: <span>4r + 3 (10-r) = 37.
</span>How? R = Rollercoaster - B = Boat Rides
r + b = 10
37 tickets were spent so..
4*r + 3*b = 37
We just multiplied the number of rides on roller coasters and the boats with the price of both.
Now we have to express boat rides from the first equation:
b = 10-r, and express that in the second equation, now we get:
4r + 3(10-r) = 37, which is the answer.
Answer: ah amigo no se lo que necesites ayuda con ..
Step-by-step explanation: