2(x + 7) + x = 20
Distribute 2 inside the parentheses.
2x + 14 + x = 20
Combine like terms.
3x + 14 = 20
Subtract 14 from both sides.
3x = 6
Divide both sides by 3.
Answer:a
Step-by-step explanation:did
I think the answer is D
According to the plot, when ,
and are the amplitudes of the waves and , respectively. From the plot it's clear that both and are positive, but the maximum value of is evidently smaller than the maximum value of . So , making the answer B.
add them then divide by 3
16.00 + 40.00 + 130 = 186.00
186.00/3 = 62.00
the average is 62.00