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:
x = 81/4
Step-by-step explanation:
He ate 2/3 of the pizza in half an hour so to eat 1/3 of the pizza it to 15 minutes so the answer is 45 minutes
Answer:
the first one
Step-by-step explanation:
10 is the default base for a logarithm
log of 50 is equal to log base 10 of 50
