Question

Need help in pre-algebra ​

Answer 1

a. 8 · 10^7 is 4000 times larger than 2 · 10^4

Explanation:

• solve the actual expression first
• write the expressions in standard form and compare them

8 · 10^7 (or 8 X 10000000) = 80000000

2 · 10^4 (or 4 X 10000) = 20000

• now that you have them in standard form, divide them to compare

80000000 / 20000 = 4000

• from this, we can tell that 8 · 10^7 is 4000 times larger than 2 · 10^4