Question

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. The original photo was 800 pixels wide by 600 pixels high. The new photo will be 1,260 pixels wide. What will the new height be?

Answer 1

945 pixels.

Explanation:

Givens

• The original photo dimensions are (800 wide x 600 high )pixels
• The new photo is 1,260 pixels wide.

First, we need to find the scale factor by dividing

`s=(1260)/(800)=1.575`

Then, we multiply the height by the scale factor

`600 * 1.575 = 945`

Therefore, the new height is 945 pixels.

Answer 2

Answer:
`945\ pixels`

Explanation:

We know that the original photo was 800 pixels wide and the new photo will be 1,260 pixels wide. Therefore, we can find the scale factor.

Divide the width of the new photo by the width of the original photo. Then the scale factor is:

`scale\ factor=(1,260\ pixels)/(800\ pixels)\\\\scale\ factor=(63)/(40)`

The final step is to multiply the height of the original photo by the scale factor calculated.

Therefore the height of the new photo will be:

`h_(new)=(600\ pixels)((63)/(40))\\\\h_(new)=945\ pixels`