Question

Simon bought a $48 table on sale at 30% off. Select from the drop-down menu to correctly complete the sentence. An estimate for the discount is

a 0.03(50)
b 0.3(50)
c 3(50)
d 30(50)

Answer 1

b.
`0.3\cdot(50)`

Explanation:

We have been given that Simon bought a $48 table on sale at 30% off. We are asked to choose the correct option that gives an estimate for the discount .

Since 48 is very closer to 50, so to find an estimated amount of discount we need to find 30% of 50.

`\text{Estimated amount of discount}=30\%\text{ of }50`

`\text{Estimated amount of discount}=(30)/(100)\cdot(50)`

`\text{Estimated amount of discount}=0.3\cdot(50)`

Therefore, an estimate for the discount is
`0.3\cdot(50)` and option 'b' is the correct choice.

Answer 2

Simon bought a $48 table on sale. The price of the table can be estumated by $50.

The sale propose 30% off, then an estimate for the discount can be calculated using proportion:

$50 -- 100%,

$x -- 30%

that is mathematically

`(\$50)/(\$x)=(100\%)/(30\%).`

Find x:

`\$x=(\$50\cdot 30\%)/(100\%)=0.3\cdot \$50.`

Answer: correct choice is B