Solve it like a normal equation, but with < instead of =
9k - 2 < 3k + 10
-3k -3k
_____________
6k - 2 < 10
+2 < +2
_____________
6k < 12
÷6 ÷6
_____________
k < 2 is your final answer :)
Let the time = x
Distance = Speed x time
One train is 75x, the other train 85x
Add together to equal total distance:
75x + 85x = 384
Simplify:
160x = 384
Divide both sides by 160:
x = 384 / 160
x = 2.4 hours
Step-by-step explanation:
1. SAS
2. HL
3. AAS
4 AAS
86.
Fatima has 40
Nora has “6 + (40 x 2)”
6+(80) = 86
Her electricity bill will be of 14256 pence.
<em><u>Explanation</u></em>
On average, Tanya uses 90 units of electricity per week.
So, the <u>total units of electricity in 12 weeks</u> will be: units
One unit of electricity costs 13.2 pence.
Thus, <u>the total cost for 1080 units</u> will be: pence.
So, her electricity bill will be of 14256 pence.