Question

Fred has an account balance of $50. He needs at least $500 to buy a new computer. If he deposits $30 per day from his take home pay, how long will it take to have at least that amount in his account?

Answer 1

Answer:

x ≥ 15

Step-by-step explanation:

First you need to make an equation for this. If he already has $50 and needs at least 500 and deposits $30 per day we can put the equation as 30x + 50 ≥500. The reason we put a greater than or equal sign (≥) rather than the less than or equal sign (≤) is because Fred needs at least meaning you can have exactly or 500 exactly. To solve this you would have to do inverse operation and subtract 50 on both sides. You should have 30x≥450. Then divide 30 on both sides. Your answer should be x ≥ 15.