Answer: $90
Step-by-step explanation:
Let the original cost be represented by x
From the question, it was given that the cost of headphones at 40% discount is $36
Thus, 40% discount = $36
100% = x
Then, convert to decimal
40% = 40/100 = 0.4
100% = 100/100 = 1
Therefore, 0.4 = $36
1 = $x
0.4x = $36
Divide both sides by 0.4
x = $36/0.4
x= $90
Original cost of the headphone was $90.
I hope this helps.
2 for number 1, 3 for number 2
Step-by-step explanation:
1/2 or 0.5×4=2 and 3/4 or 0.75×4=3
Im sorry. I need the options to answer this...
But if you want to answer this your self just take all your options and replace x with -2 and use PEMDAS to find if it equals 0 or not.
3. Rule - 4 and below - round to a 0
5 and above - round to the number
A - 182.<u>8</u>86 - 182.900
B - 0.<u>4</u>59 - 0.500
C - 4.<u>0</u>6 - 4.10
D - 7.<u>9</u>6 - 8
E - 0.3<u>0</u> - 0.3
F - 3.<u>2</u>1 - 3.2
kilogram is an si unit my friend
