Question

Somebody please help me again

Answer 1

4 bags will be required.

Explanation:

Patio is in the shape of a parallelogram.

Formula for the area of a parallelogram is,

Area =
`(\text{Base})(\text{Height})`

= 16.2 × 12

= 194.4 square feet

∵ 50 square feet area is covered by 1 bag of concrete mix.

∴ 1 square feet area will be covered by
`(1)/(50)` bag of concrete mix

∴ 194.4 square feet patio will require the concrete mix =
`(194.4)/(50)`

= 3.888

≈ 4 bags

Therefore, 4 bags of concrete mix will be required by Dave to add a new patio.