Answer:
x > = -400
Step-by-step explanation:
-3x < = 1200 / :(-3)
* ALWAYS REMEMBER : WHEN DIVIDING BY A NEGATIVE NUMBER THE SYMBOL OF THE INEQUALITY CHAGES !
x > = -400
9514 1404 393
Answer:
50 problems
Step-by-step explanation:
The percentage wrong was 100% -72% = 28%. Then the number n of problems on the test was ...
14 = 0.28·n
n = 14/0.28 = 50
There were 50 problems on the test.
Answer: the correct answer is 43 hours
Step-by-step explanation:
40x15=600
15x2=30 because you get your 50% extra doing overtime
then 30x3=90
90+600=690
So to find a percent of increase you have to put the current number minus previous number(in this case 20-16) over the previous number(16 in this case) and multiply by 100.
So we have 20-16/16 multiplied by 100.
Since 4/16= 0.25,multiplying It by 100 gives you 25.
So the answer is 25%