find the value of the following expression if a=6 and b =3
a)a+b
b)a-b
c)ab
d)a/b
e)3ab
f)a+5b
g)3ab-4b+5
h)5a-2b/4ab-8
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Answer:
(a) 9
(b) 3
c. 18
d. 2
e. 54
f. 21
g. 47
h. 8/3=2.66
Step-by-step explanation:
a. a+b =6+3=9
b. 6-3=3
c. 6*3=12
d. 6÷3=2
e. 3ab= 3×6×3=18×3=54
f. a+5b = 6+5×3
= 6+15 = 21
g. 3ab-4b+5 = 3×6×3-4×3+5
=54-12+5
=47
h. 5a-2b/4ab-8 = 5×6-2×3÷4×6×3-8
= 30-6 ÷ 72-8
= 24÷64 = 2.66
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