Broderick had $420 in his checking account he may six deposit of $35.50 each he needs to write more checks for $310.75 each

1 answer:

7 0

He can only make two $310.75 checks because $35.50x6=$213
$213+$420=$633
$633-$310.75=$322.25
^^^^^^^^^^^^^^^^^^^^^^^^
That means u can make another check
$322.25-$310.75=11.5
So you can make two checks of $310.75

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1. The diagonal of a quadrilateral

zalisa [80]

Consider the length of diagonal is 8.5 cm instead of 8.5 m because length of perpendiculars are in cm.

Given:

Length of the diagonal of a quadrilateral = 8.5 cm

Lengths of the perpendiculars dropped on it from the remaining opposite vertices are 3.5 cm and 4.5 cm.

To find:

The area of the quadrilateral.

Solution:

Diagonal divides the quadrilateral in 2 triangles. If diagonal is the base of both triangles then the lengths of the perpendiculars dropped on it from the remaining opposite vertices are heights of those triangles.

According to the question,

Triangle 1 : Base = 8.5 cm and Height = 3.5 cm

Triangle 2 : Base = 8.5 cm and Height = 4.5 cm

Area of a triangle is

$Area=\dfrac{1}{2}\times base \times height$