What we know:
quotient 9.2 x 10^6/ 2.3 x 10²
in quotients exponents are subtracted of they have the same base, for example 10^6 and 10² have the same base of 10
What we need to find: quotient 9.2 x 10^6/ 2.3 x 10²
9.2 x 10^6
-------------- = 4 x 10^4
2.3 x 10²
Here in this problem I divided 9.2 by 2.3 and got 4, since the solution was simple and clean meaning no repeated decimals I went ahead and divided the 10^6 by 10^2 and got 10^4.
Another method would be to expand both numbers then divide and do scientific notation again.
Remember to change to normal notation you move the decimal to the right using the number of the exponent.
9.2 x 10^6= 9200000
2.3 x 10²= 230
920000/230=40000
40000= 4 x 10^4 scientific notation
Use the method that is best for you or just know you can use either method to check your work.
Answer:
<u>The correct answer is US$ 444.06</u>
Step-by-step explanation:
1. Let's check all the information that was provided in the question:
Salary per hour earned by Don Moline = US$ 12.25
Number of hours worked last week = 36 1/4
<u>2. For calculating the payment Don will receive, we do the following:</u>
Straight-time payment = Salary per hour earned by Don * Number of hours worked last week
Straight-time payment = 12.25 * 36 1/4
Straight-time payment = 12.25 * 36.25 (1/4 = 0.25)
Straight-time payment = US$ 444.06
<u>Don Moline will receive US$ 444.06 of payment</u>
The second step is wrong because you have to multiply both sides by 4
x+24 inequality 12
Subtract 24 from both sides
x > greater than or equal to -12
12 - 3 = 9 There are 9 cookies left.
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