SOLUTION: Mary bought a roll tape of 450 cm long..she cut it into equal numbers of 4cm and 5 cm strips.how many 4 cm strips did she get
Algebra ->
Test
-> SOLUTION: Mary bought a roll tape of 450 cm long..she cut it into equal numbers of 4cm and 5 cm strips.how many 4 cm strips did she get
Log On
Question 1049360: Mary bought a roll tape of 450 cm long..she cut it into equal numbers of 4cm and 5 cm strips.how many 4 cm strips did she get Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Mary bought a roll tape of 450 cm long..she cut it into equal numbers of 4cm and 5 cm strips.how many 4 cm strips did she get
------
a = b
4a + 5b = 450 cm
----
9a = 450
a = 50 (# of 4cm strips)
b = a = 50 (# of 5cm strips)
------------------
Cheers,
Stan H.
---------------
(