Posted by **Anonymous** on Monday, September 20, 2010 at 10:33pm.

one day a store sold 21 sweatshirts. White ones cost $10.95 and yellow ones costs $13.50. In all $275.85 worth of sweatshirts were sold. How many of each color were sold

How many white sweatshirts were sold?

How many yellow sweatshirts were sold?

- Math -
**Anonymous**, Monday, September 20, 2010 at 11:03pm
two angles are supplementary. One angle is 3 degrees less that twice the other.Find the measures of the angles.

what is the measure of the smaller angle

what is the measure of the other angle

- Math -
**Henry**, Tuesday, September 21, 2010 at 11:25pm
X White shirts,

Y yellow shirts,

X + Y = 21 Shirts.

Y = 21 - X

Cost = 10.95x + 13.5y = 275.85,

Substitute 21 - X for Y

10.95x + 13.5(21 - x) = 275.85,

10.95x + 283.5 - 13.5x = 275.85,

-2.55x = -7.65

x = 3 = White shirts,

3 + Y = 21

y = 18 Yellow shirts.

x = 1st angle,

(2x - 3) = 2nd angle,

x + (2x - 3) = 180 Deg.

2x - 3 = 180,

3x = 183,

x = 61 Deg. = Smaller angle,

(2x - 3) = 2 * 61 - 3 = 119 Deg. =

Larger angle.

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