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Leto [7]
3 years ago
15

the average (arithmetic mean) of t and y is 15, and the average of w and x is 15. what is the average of t, w,x,and y

Mathematics
1 answer:
lubasha [3.4K]3 years ago
5 0
Oi :)

\frac{t+y}{2}=15 \\  \\ t+y=15*2 \\ t+y=30
--------------------------------------------------------------------------------------------------------------------------
\frac{w+x}{2}=15 \\  \\ w+x=15*2 \\ w+x=30
---------------------------------------------------------------------------------------------------------------------------
Logo:
\frac{t+y+w+x}{4}=??? \\  \\  \frac{30+30}{4}  \\  \\  \frac{60}{4}   \\  \\ 15
-----------------------------------------------------------------------------------------------------------------------------
Answer = 15

Boa Noite. Bons Estudos !
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