Answer: #20, x = 3
#21, x = 1/2
Step-by-step explanation:
#20) x + 4 + x + 2+ x + 5 = x + 3 +x+3+x+1+x+1
3x + 11 = 4x + 8
<u>-3x -3x</u>
11= x + 8
<u> - 8 - 8</u>
3 = x
#21) 12x(5) = 6x + 9 + x + 10 + x + 7
60x =8x + 26
<u> -8x -8x</u>
52x = 26
divide both sides by 52
x = 1/2
Answer:
9 oranges per glass
It would be 7.
Because 20-5-15 then 15-8=7
Answer
0.00145
(5 x 10^-4) + (9.5 x 10^-4)
0.0005 + 0.00095
= 0.00145
x=81
49+32=81
