Answer:
4 (20) + 6(6) = 120
4(20) + 4 (6) = 100
Step-by-step explanation:
Hi, to answer this question we have to write a system of equations with the information given:
Build time (hours) = 4c + 6a = 120
Test time (hours) = 4c + 4 a = 100
Where c represents the number of child bikes and a represents adult bikes.
So, for 20 child bikes and 6 adult bikes:
4 (20) + 6(6) = 120
4(20) + 4 (6) = 100
Feel free to ask for more if needed or if you did not understand something.
Answer:
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Step-by-step explanation:
Answer:
x =-1 y=4
Step-by-step explanation:
-1 ×4 is -4. 2×4 is 8
8 +-4 =4
Answer:
area = 488 cm^2
Step-by-step explanation:
area = (17x22) + (19)(12)(0.5)
area = 374 + 114 = 488 cm^2
