How much work is done in an hour by each:
s = 1/6 of the yard in one hourb = 1/10 of the yard in an hour
working together they can do:
1/6 + 1/10 in an hour; or 16/60; we can invert this number to determine how long it takes to finish the yard
60/16 hours
=3 hours and 45 minutes
Answer:
d I think
Step-by-step explanation:
Answer:
im pretty sure its 5x+70... good luck boo
Step-by-step explanation:
Answer:
5(25 + z)
Step-by-step explanation:
(100+4z)20 can be reduced, since 4 divides evenly into 100, 4 and 20:
(25 + z)(5), or 5(25 + z).
This result can be left as is, or rewritten as 125 + 5z.