138 x ? = 75
? = 75/138 = 0.544(3sf)
so about 54.35% (2dp) decrease
In expanded form that would be 10,000,000 + 6,000,000 + 100,000 + 7,000 + 300 + 20
Answer:
The ratio between won and lost is 
Step-by-step explanation:
<u><em>The question in English is</em></u>
A table tennis team won 21 games and lost 12 games, what is the ratio between won and lost?
Let
x ------> the number of games won
y -----> the number of games lost
we have


we know that
To find the ratio divide the number of games won by the number of games lost
so

substitute the values

Simplify

The equation should be y= -2x+5.