explain your answer please and thankyou
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Answer:
1) 11
2) 11
3) 48°
Step-by-step explanation:
7.8×5 = 5+8+x+12+3
x = 39 - 28 = 11
12×6 = 9+12+15+21+4+x
x = 72-61 = 11
74.5×8 = 91+77+56+x+76+61+98+89
x = 596 - 548 = 48°
Answer:
11, 11, 48%
Step-by-step explanation:
Mean=(sum of numbers)/(count of numbers)
1) 7.8=(5+8+x+12+3)/5
39=28+x
x=11
2) 12=(9+12+15+21+4+x)/6
72=61+x
x=11
3) 74.5=(91+77+56+x+76+61+98+89)/8
596=548+x
x=48%