Question

=) The perimeter of a rectangular field is 336 m.

If the width of the field is 74 m, what is its length?


Length of the field:



The area of a rectangular painting is 5795 cm2.
If the length of the painting is 95 cm, what is its width?


Width of the painting:

Answer 1

Length of the field: 94 m

Width of the painting: 61 cm

Explanation:

Use the perimeter formula, P = 2l + 2w, to find the length:

Plug in the perimeter and width into the equation:

P = 2l + 2w

336 = 2l + 2(74)

336 = 2l + 148

188 = 2l

94 = l

So, the length of the field is 94 m.

To find the width of the painting, use the area formula, A = lw

Plug in the area and length into the equation:

A = lw

5795 = 95w

61 = w

So, the width of the painting is 61 cm.

Length of the field: 94 m

Width of the painting: 61 cm