If $1.99 equals 3,000 items, then $x equals 3,640 items

[jade01]

Sorry I haven’t done math in awhile and forget the exact equation to calculate this: if $1.99 equals 3,000 items, then how much equals 3,640 items? Please write down each step and your equation! Thanks!

If $1.99=3000 items

$x=3640 items

Solve for x

 

[khansaheb]

Sorry I haven’t done math in awhile and forget the exact equation to calculate this: if $1.99 equals 3,000 items, then how much equals 3,640 items? Please write down each step and your equation! Thanks!

If $1.99=3000 items

$x=3640 items

Solve for x

Let's look at a simpler situation:

if $2.00 equals 5,000 items,

then how much equals 15,000 (= 5000 * 3) items?

 

[Dr.Peterson]

Sorry I haven’t done math in awhile and forget the exact equation to calculate this: if $1.99 equals 3,000 items, then how much equals 3,640 items? Please write down each step and your equation! Thanks!

If $1.99=3000 items

$x=3640 items

Solve for x

There are several ways you could do this, not just one formula.

One way is to write a proportion: 1.99/3000 = x/3640. Do you know how to solve that?

Another is to think in terms of unit rates. If 3000 items cost $1.99, then how much does one item cost? Then, how much do 3640 items cost?

Another is to see that the amount you want is 3640/3000 times the amount that costs $1.99; so you multiply the cost by that much.