Question

Help solve 100 points!!!!!

Answer 1

85 + w(10+8)
85 + (4)(10+8)
b= 157
So your answer is 4 weeks

Answer 2

4 weeks

Explanation:

Given information:

• Starting account balance = $85
• Weekly deposit = $8 + $10 = $18

Given equation:

`\sf b = 85 + w(10 + 8)`

(where b is the balance and w is the number of weeks)

To find the number of it will take to have a balance of $150, substitute b = $150 into the given equation and solve for w:

`\implies \sf 85+w(10+8)=150`

`\implies \sf 85+18w=150`

`\implies \sf 85+18w-85=150-85`

`\implies \sf 18w=65`

`\implies \sf (18w)/(18)=(65)/(8)`

`\implies \sf w=3.6111...`

`\implies \sf w=4\:weeks`

Therefore, there will be $150 in the bank account 4 weeks from now.