Answer:
Explanation:
change 2/3 to a decimal round to the nearest tenth
.7 (6a + 9) = 16.8
.7 x 6a = 4.2a
.7 x 9 = 6.3
4.2a + 6.3 = 16.8
4.2a = 16.8 - 6.3
4.2a = 10.5
a = 10.5 / 4.2
a = 2.5
2.7
multiply 2/3 by the 6a and the 9 and you get:
4a + 6 = 16.8
move the 6 over by subtraction
4a = 10.8
divide by 4
a = 2.7
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