Answer:
70
Step-by-step explanation:
The simplest way to find the number is work backwards. If you know the final answer is 10, start with 10 and make the number x. Then set up the original equation.
0.5x-25=10
Then start working backwards(isolate).
0.5x-25=10
+25 +25
in other words, 10+25=0.5x. (the 25 cancels out because -25+25=0)
10+25=35, so 35=0.5x.
Now, instead of dividing by 2, multiply by 2(opposite again).
35=0.5x
/0.5(aka *2) /0.5(cancels out)
now you are left with 70=x, so the number is 70.
Answer:
D
Step-by-step explanation:
If a function has x in the denominator, it cannot be a polynomial.
The rest of the options either don't apply to the equation, or are not rules for polynomials.
He has 2 jobs paying different rates.
At $15/hr for 8 hours, he earns $120.
At $18/hr for 4 hours, he earns $72.
Summing these up: $120 + $72 = $192
Dividing by the total # of hours worked (12),
$192
--------- = $16/hr (average rate)
12 hr
Answer:
Part a: janice
part b: difference of 3 dollars in hourly pay
Step-by-step explanation:
Divide the amount each person was paid by the hours they worked to find their hourly pay
48 divided by 4 = 12
84 divided by 7 = 12
108 divided by 9 = 12
janice Makes 15 dollars an hour