Question

3 Markers Cost $5.79.
Which Equation Would Help Determine The Cost Of 13 Markers?

Answer 1

If we know the cost of 3 markers, we need the unit price to set up an equation for 13 since 13 does not divide by 3 nicely.

$5.79 ÷ 3 = $1.93 for each marker.

If m = marker
1.93m will provide the cost of any number of markers.

Answer 2

An equation that would help to determine the cost of 13 markers is 13x = 13 × 1.93

What is an equation?

"It is a statement which is consists of equal symbol between two mathematical expressions."

For given example,

Let 'x' represents the cost of one marker.

3 Markers Cost $5.79

⇒ 3x = 5.79

⇒ x = 5.79/3                      .........................(1)

This equation would help to find the cost of one marker.

Now, we need to find the equation which would help to find the cost of 13 markers.

⇒13 × (x) = 13 × 5.79/3     .............(Multiply each side of equation (1) by 13)

⇒ 13x = 13 × 1.93

This equation would help to determine the cost of 13 markers.

Learn more about equation here:

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