Question

Carry out the calculation: (1.43) + (3.11) × (1.5) what is the answer rounded to the correct number of significant figures?

Answer 1

Begin with 3.11 x 1.5, which equals 4.665. Then add 1.43. The answer is thus 6.095.

Answer 2

we have been asked to find

$(1.43) + (3.11)* (1.5)$

As per the PEMDAS Rule , we will first carry out the multiplication and thereafter addition.

$(1.43) + (3.11)* (1.5)=1.43+4.665\\ \\ \text{Now perform the addition operation we get}\\ \\ (1.43) + (3.11)* (1.5)=6.095\\ \\ \text{As it asked to write the answer in correct number of significant figures}\\ \\ \text{Hence we have }\\ \\ (1.43) + (3.11)* (1.5)=6.1$