The 2 equations are
18.20x+19.50y=230.10
and
x+y=12
where x is the months of original cost and y is months for new cost. Since you know that you paid for one year (12 months) you can make the second equation. Then you want to substitute the first equations x by making the second equation
x=(12-y)
18.20(12-y)+19.50y=230.10
218.40-18.20y+19.50y=230.10
1.30y=11.70
y=9
so that means you had the original rate for 3 months and the new one for 9 months
Answer:
20 min i hope this answers helps u
Step-by-step explanation:
10000÷500=20
Here is how you do it so they asked 120 kids and 46 of them hangs out
on Saturdays so you just do this 46/120=38%
Answer:
Density is equal to mass/volume, so in your case:
density=1.3/1000=0.0013 g/cm^3
Step-by-step explanation:
Answer:
18
Step-by-step explanation: