Question

by rounding to 1 significant figure estimate (23.4×13.9)÷0.18

Answer 1

Given: The term (23.4 × 13.9) ÷ 0.18

To find: Estimate by rounding to 1 significant figure.

Solution:

• Now we have given the term (23.4 × 13.9) ÷ 0.18

• First lets multiply, we get:

                  (23.4 × 13.9) ÷ 0.18 = 325.26 / 0.18

• Now multiplying by 100 in numerator and denominator, we get:

                  325.26 / 0.18  x  100/100

                  32526 / 18 = 1807

• By rounding to 1 significant figure, we get:

                  1807 = 1800 = 1.8 x 10³

Answer:

               So the value of (23.4×13.9)÷0.18 by rounding to 1 significant figure is 1.8 x 10³

 

Answer 2

Answer:

20x10=200

200x10=2000, 0.2x10=2

2000 divided by 2 = 1000

Step-by-step explanation:

round it to 20x10=200

200x10 ( for the 0.2) = 2000

0.2x10=2

2000 divided by 2=1000