Question

I don't know how to solve this problem. please help.

Answer 1

$2.71 + 4j = $6.75

j = $1.01

Explanation:

$2.71 + 4j = $6.75

4j = 6.75 - 2.71 = 4.04

j = 4.04/4 = $1.01

Answer 2

$6.75 = $2.71 + 4j

j = $1.01

Explanation:

The total amount of money Ava spent was $6.75. We can make this one side of an equation.

The other side of the equation can be what Ava bought for that $6.75. We know that she bought $2.71 of oranges and 4 juice bottles, so we can add these on the other sides of the equation.

`\$6.75 = \$2.71 + 4j`

To solve this equation for
`j`, we can first subtract $2.71 from both sides.

`\textrm{ } \ \$6.75 = \$2.71 + 4j\\\underline{-\$2.71} \ \ \ \ \underline{-\$2.71 \ \ \ \ }`

`\$4.04 = 4j`

Finally, we can divide both sides by 4.

`\$4.04 = 4j\\\overline{\ \ \ 4\ \ \,} \ \ \ \ \overline{\: 4 \:}`

`\$1.01 = j`

`\boxed{j = \$1.01}`