Answer:
Step-by-step explanation:
![\frac{2x}{a}+\frac{y}{b}=2 ---------(i)\\\\\frac{x}{a}-\frac{y}{b}=4-------------(ii)\\\\](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7Ba%7D%2B%5Cfrac%7By%7D%7Bb%7D%3D2%20---------%28i%29%5C%5C%5C%5C%5Cfrac%7Bx%7D%7Ba%7D-%5Cfrac%7By%7D%7Bb%7D%3D4-------------%28ii%29%5C%5C%5C%5C)
Add the equations. So, y/b will be eliminated.
![\frac{3x}{a}=6\\\\x=6*\frac{a}{3}\\\\x=2a\\\\](https://tex.z-dn.net/?f=%5Cfrac%7B3x%7D%7Ba%7D%3D6%5C%5C%5C%5Cx%3D6%2A%5Cfrac%7Ba%7D%7B3%7D%5C%5C%5C%5Cx%3D2a%5C%5C%5C%5C)
x= 2a
Substitute x = 2a in equation((i)
![\frac{2*2a}{a}+\frac{y}{b}=2\\\\4+\frac{y}{b}=2\\\\\frac{y}{b}=2-4\\\\\frac{y}{b}=-2\\\\y=-2b](https://tex.z-dn.net/?f=%5Cfrac%7B2%2A2a%7D%7Ba%7D%2B%5Cfrac%7By%7D%7Bb%7D%3D2%5C%5C%5C%5C4%2B%5Cfrac%7By%7D%7Bb%7D%3D2%5C%5C%5C%5C%5Cfrac%7By%7D%7Bb%7D%3D2-4%5C%5C%5C%5C%5Cfrac%7By%7D%7Bb%7D%3D-2%5C%5C%5C%5Cy%3D-2b)
y = - 2b
1.Answer is B. 7.8 cents each
2.Answer is A. 63 cents each
3.Answer is C. 40 cents each
4.Answer is D. 78 cents each
5.Answer is E. $1.05 each
Answer:
not sure of the answer
Step-by-step explanation:
Did you ever get it im struggling.
Answer:
147°
Step-by-step explanation:
180 - 33 = 147