Answer:
5 x 10^1
Step-by-step explanation:
Answer: 1) is 20
2) is 75 minutes
3) is estimated 63
Step-by-step explanation:
1) 200×90=18000÷100=180 and 200-180=20
2) 45÷12=3.75 which is the unit rate of minutes per question and 3.75×20=75 minutes
3) to long to explain and I don't know number 4
To create this pattern, you can start with the number zero and apply this math. 0 x 2 +1 = 1. The next number would be found by taking 1 x 2 + 1=3. After that 3 x 2 + 1 = 7. The next number in the pattern would be found by taking 7 x 2 +1. Essentially, you are just taking the answer you just got and doubling it and then adding 1. Here is the pattern that would be created beginning with 0. 0, 1, 3, 7, 15, 31, 63, etc...
Answer: the employee must make sales of $32000
Step-by-step explanation:
Let x represent the total sales that the employee makes in a month.
One employee of a computer store is paid a base salary of $2,000 a month plus an 8% commission on all sales over $7,000 during the month. This means that if the employee makes sales of $x in a month, his total earnings for that month would be
2000 + 8/100(x - 7000)
= 2000 + 0.08(x - 7000)
= 2000 + 0.08x - 560
= 0.08x + 1440
Therefore, for the employee to earn
a total of $4,000 for the month, the amount of sales would be
0.08x + 1440 = 4000
0.08x = 4000 - 1440
0.08x = 2560
x = 2560/0.08
x = $32000