They need to be like terms (so change the denominators into things that match)
1 x3 = 3
4 x3 = 12

1 x4 = 4
3 x4 = 12

4/12 + 3/12 = 7/12

So, 7/12 of the money was spent.

8 0

4 years ago

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describe what would be true about the rate of change in a situation that could be represented by a graphed line and an equation

Andru [333]

If y=mx+b,

$\frac { dy }{ dx } =m$

You can't differentiate a constant, so dy/dx=m.

5 0

4 years ago

Two rectangles have an area of 36 square inches Name two possible perimeters for the rectangle

coldgirl [10]

1.
18 × 2 = 36

18 + 18 + 2 + 2 = 40

A perimeter of 40 inches
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2.
9 × 4 = 36

9 + 9 + 4 + 4 = 26

A perimeter of 26 inches

7 0

3 years ago

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