Answer:
Step-by-step explanation:
shirt = x, pants: y
Katie equation: 3x + 2y = 80, Erin equation: 3x + 4y = 116
3x + 2y = 80
3x = 80 - 2y
x = 80/3 - 2y/3
3(80/3 - 2y/3) + 4y = 116
80 - 2y + 4y = 116
80 + 2y + 116
2y = 36
y = 18, pants cost $18
3x + 4(18) = 116
3x + 72 = 116
3x = 44
x = 14.66... (66 is repeating), shirts cost $14.66
check work:
Katie: 3(14.66) + 2(18) = 79.98 which is roughly 80.
2 minutes and $7.50 would be the answer please put me down as brainliest
Answer:
30
Step-by-step explanation:
Perimeter of parallelogram = 70 ft
-> 2x + 2y = 70 .....(1)
x = 6y (Given) .....(2)
From equations (1) & (2)
2(6y) + 2y = 70
12y + 2y = 70
14y = 70
y = 70/14
y = 5
-> x = 6*5
-> x =30
<em>THE</em><em> </em><em>CORRECT</em><em> </em><em>EQUATION</em><em> </em><em>IS</em><em>.</em><em>.</em>
<em>(</em><em>8</em><em>X</em><em>+</em><em>3</em><em>)</em><em>°</em><em>=</em><em>(</em><em>7</em><em>X</em><em>+</em><em>1</em><em>2</em><em>)</em><em>°</em>
<em>[</em><em>BEING</em><em> </em><em>VERTICALLY</em><em> </em><em>OPPOSITE</em><em> </em><em>ANGLES</em><em> </em><em>ARE</em><em> </em><em>ALWAYS</em><em> </em><em>EQUAL</em><em> </em><em>]</em>
HOPE THIS HELPS YOU...
Answer:
Step-by-step explanation:
Cosine of an angle:
The cosine of an angle, in a right triangle, is the length of the side adjacent to this angle divided by the hypotenuse.
Length of the largest side:
The length of the largest side is 41, that is, the hypotenuse is 41. The hypotenuse is XW.
WY = 9.
This means that the length of the adjacent side to angle W is 9.
What ratio represents the cosine of ∠W?
Adjacent side has length 9, hypotenuse has length 41. So
