Question

Kala and david each opened a savings account today, kala opened her account with a starting amount of $180, and she is going to put in $70 per month. David opened his account with no starting amount, and he is going to put in $100 per month

let x be the number of months after today
(a) for each account, write an expression for the amount of money in the account after x months
(b) write an equation to show when the two accounts have the same amount of money

Answer 1

`Elsa:y_1=70x+180`

`brian,y_2=100x`

Explanation:

`Rnown\ by\ the\ topic,`

`Assuming\ that\ the\ Elsa\ amount\ of\ money\ is\ y_1,`

`Brian's\ amount\ of\ money\ is\ y_2`

`so,y_1=70x+180`

`\{put\ in\ \$70\ per\ month,\ storting\ amount\ of`

`y_2=100x`

`\{\ put\ in\ \&\ 100\ per\ month,\ no\ starting\ emount`

`\{\$70,\ \$100\ are\ monthly\ voriation,`

`\$180\ is\ fixed\ value?`

I hope this helps you

:)