If: x/3 + 10 = 15 Then: x = 15
15 cubed = 15^3 or (3 x 10^3) + (3 x 10^2) + (7 x 10^1) + (5 x 10^0)
3 x 10 to the 5th power + 3 x 10 to the 4th power + 2 x 10 to the 2nd power
The value of 4.2 X 10 to -3 power is 0.0042
3. x= (2/10)*15 x= (.02)*15 x=3
If: x/3 + 10 = 15 Then: x = 15
15 cubed = 15^3 or (3 x 10^3) + (3 x 10^2) + (7 x 10^1) + (5 x 10^0)
3 x 10 to the 5th power + 3 x 10 to the 4th power + 2 x 10 to the 2nd power
15 x 13 = 195A simpler way of breaking this down is:15 x 13 =(10 + 5) x (10 + 3) =(10 x 10) + (10 x 3) + (10 x 5) + (5 x 3) =100 + 30 + 50 + 15 = 195
1000 = 1X 10(to the power of 3) 500 = 5 x 10(to the power of 2) 30 = 3 x 10(to the power of 1) 3 = 3 x 10(to the power of 0)
3×10¹⁵ ÷ 6×10¹⁰ = (3 ÷ 6)×(10¹⁵÷10¹⁰) = 0.5×10¹⁵⁻¹⁰ = (5×10⁻¹)×10⁵ = 5×10⁻¹⁺⁵ = 5×10⁴ It is 5×10⁴ (= 50,000) times bigger.
3x5 5+5+5
The value of 4.2 X 10 to -3 power is 0.0042
if it's to 10 to the power of a negative, move the decimal that many places left. if it's 10 to the power of a positive, move the decimal that many places to the right. eg; 15 x 103 = 15000 15.234 x 103 = 15234 15 x 10-3 =0.0015 15.234 x 10-3 = 0.0015234 see the pattern?
15 x 2 3 x 10 10 x 3 2 x 15 6 x 5 5 x 6
13 - 2/3 (x) = 3 -2/3 (x) = -10 -2x = -30 x = 15 or 13 - 10 = 3 15 x 2/3 = 10 Answer: 15
3. x= (2/10)*15 x= (.02)*15 x=3