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Answer:
choice 1) 2-4y
Step-by-step explanation:
from the answers available, you are looking for the expression for x to substitute into the first equation.
The second equation is: x+4y = 2
To convert x+4y = 2
subtract 4y from both sides of the equation:
x+4y-4y = 2-4y
simplified:
x = 2-4y
Answer:
16 mm
Step-by-step explanation:
Dilation multiplies every length by the dilation factor.
E'F' = (2/5)EF = (2/5)(40 mm) = 16 mm
Answer:
1) 3:15 hours.
2) 68 km per hour.
Step-by-step explanation:
Since a bus from Nantes at 3:50 p.m. and arrives at Tours at 7:05 p.m. after having traveled 221km, to calculate the journey time in hours and minutes and calculate the average speed of this bus, the following calculations must be performed:
1) 7:05 - 3:50 = 3:15
Thus, the duration of the trip was 3 hours and 15 minutes
2) 0:15 = 0.25
221 / 3.25 = X
68 = X
Thus, the average speed of the bus was 68 km per hour.
Answer:
(4,1)
Step-by-step explanation:
