Step-by-step explanation:
2/3 is answer .........
A funçao g(x) = 84 x representa o gasto medio , em reais , com a Compra de agua mineral de uma familia de 4 pessoas em x meses . Essa familia pretende deixar de comprar agua mineral e instalar em sua residência um purificador de agua que custa R$299,90 . Com o dinheiro enconomizado ao deixar de comprar agua mineral , qual o tempo para recuperar o valor investido na compra do purificador?
I think the answer is A because the balance after 4 years is not on their and so we are trying to find the balance after three years. And after 3 years the balance is 805
Answer:
8 years
Step-by-step explanation:
The first company's offer is $8000 lower, but the raises are $1000 higher each year. It will take 8000/1000 = 8 years for the salaries to be the same.
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If you like, you can write an equation that will tell you the same thing.
28000 +3000y = 36000 +2000y
Subtract 28000+2000y from both sides:
3000y -2000y = 36000 -28000
1000y = 8000
y = 8000/1000 = 8
