Answer:
<u>The correct way of calculating the bill without tax is B. Divide the total bill by 1.17</u>
Step-by-step explanation:
Let's assume that the cellular phone bill with tax for this month is $ 117 (100 + 17 of tax), now let's make the calculation using the four alternatives provided:
A . Divide the total bill by 0.83
117/0.83 = 140.96, therefore it's not the correct way.
<u>B. Divide the total bill by 1.17</u>
<u>117/1.17 = 100, therefore this is the correct way.</u>
C. Multiply the total bill by 0.83
117 * 0.83 = 97.11, therefore this is not the correct way.
D. Multiply the total bill by 1.17
117 * 1.17 = 136.89, therefore this is not the correct way.
Answer:
n = -2
Step-by-step explanation:
-5(6n+6) = 30
-30n-30 = 30
-30n = 30+30
-30n = 60
-n = 60/30
-n = 2
n = -2
Answer: 20.5
Step-by-step explanation:
Step-by-step explanation:
1 septillion = 10^6 nonillion
the taking time = 5× 10^-6 / 257.21
= 500× 10^-8 /257.21
= 1.94 × 10^-8 seconds
