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Kameon
16.01.2021 •
Mathematics
Solve h+9.7=-9.7 and show me the steps
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Ответ:
h = -19.4
Step-by-step explanation:
1. Take the constant on the left side of the equation by changing the positive to a negative ---> h = -9.7 -9.7
2. Solve the right side, and you have yuor answer. ---> h = -19.4
Ответ:
(40+F) * time = 210 miles
( 40 - F) * 2 * time = 380, takes it twice as long to go 380 as 210 down stream
F is the flow and time it time.
solve the first for time = 210/(40+F) sub into the second
use the quadratic on line solver
flow = 39.9
my equations turned out to be -21F^2 -19F + 32840 = 0
one real root and one negative root, discard the negative root.