Question

The expression 2.5 + 2t gives the cost, in dollars, of t tulips at a flower store. Joanna has $14.00.

How many tulips can she afford to buy?

Answer 1

5 tulips.

Explanation:

Given:

The expression for the cost of the tulips is
`Cost=2.5+2t`

Where,
`t` is the number of tulips.

Now, Joanna has
`\$ 14.00`.

So, number of tulips that can be bought with the above amount can be obtained by substituting
`\$ 14.00` for cost. This gives,

`Cost=2.5+2t\\14=2.5+2t\\2t=14-2.5\\2t=11.5\\t=(11.5)/(2)=5.75 \approx 5`.

As the number of tulips cannot be in decimals or fractions, so the maximum number of tulips that can be bought will be 5.