Total heads = 10 Total legs = 26 Cat = 4 legs Birds = 2 legs
------------------------------------ Assumed all birds : ------------------------------------ Total legs = 10 x 2 = 20
------------------------------------ Difference in legs : ------------------------------------ 26 - 20 = 6
------------------------------------ Difference in legs between the two animals: ------------------------------------ 4 - 2 = 2
------------------------------------ Find number of cats : ------------------------------------ 6 ÷ 2 = 3
------------------------------------ Find number of birds : ------------------------------------ 10 - 3 = 7
------------------------------------------------------------------------ Answer: There are 3 cats and 7 birds. ------------------------------------------------------------------------
<span>Find
the speed of each car.
Let a be the first car
Let b be the second car
=> a = x miles per hour
=> b = x + 12 miles per hour
=> 2 (x+ x + 12) = 232 miles per hour
=> 2x + 12 = 232
=> 2x + 12 = 116
=> 2x = 116 - 12
=> 2x / 2 = 104 / 2
=> x = 52 (speed of Car A)
=> 52 + 12 = 64 miles per hour (speed of Car B)</span>
