To get the answer we have to substitute b=3 and solve it.
5a-10b=45
5a-10*3=45
5a-30=45 /+30 add 30 both sides
5a-30+30=45+30
5a=75 /:5 divide both sides by 5
5a:5=75:5
a=15 - its the answer
Answer: Y=1
Step-by-step explanation:
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Hope this helps</em></u></h2>
for x=3

I hope this was what you asked for.
1200= 80%
? =100%
to find the ? you can multiply 100(1200)=120000
then 120000 divided by 80= 1500
the original price was 1500, with the discount of 20% you save 300$ and the price is 1200$
We know the formula for compound interest as

Now, we have been given that Ellen has $125. It means we have
P = $125
From the given directions, we have

On substituting these values in the above mentioned formula, we have

Therefore, Ellen would have $240.08 after 8 years.