Question

Megan is saving up to buy a new cel phone that costs $220.00. So far she has saved $175.00. Megan would like to buy the cell phone in four weeks. Write an inequality to represent at least how much she must save every week to purchase the cell phone.

Answer 1

Answer: X greater than or equal to $11.25

Explanation:

Answer 2

`Per\ week\ saving\geq \$11.25`

Explanation:

Cost of cellphone
`=\$ 220`

She has already
`\$175`.

The amount she needs
`=220-175=\$ 45`

Let the amount she must save every week
`=\$x`

Total amount saved in
`4\ weeks=Number\ of\ weeks * Per\ week\ saving=4* x=4x`

She needs at least
`\$45` to buy cellphone that means total amount saved should be greater or equal to
`\$45`.

`4x\geq 45\\\\x\geq (45)/(4)\\\\x\geq 11.25`