Answer:
x = 4 2/7
Step-by-step explanation:
2/3 x= -1/2x+5
Add 1/2 to each side
2/3 x 1/2 x = -1/2x+1/2x+5
2/3 x +1/2x =5
Get a common denominator
2/3x *2/2 + 1/2 *3/3 = 5
4/6x + 3/6x = 5
7/6x = 5
Multiply each side by 6/7 to isolate x
6/7 *7/6x = 5 *6/7
x = 30/7
Change to a mixed number
x = 28/7 + 2/7
x = 4 2/7
X=10 and y=5 so it's the first option
It grows by 10% each year. multiply the number by 0.1, then add. so 0.1×2420 is 242. add 242+2420=2662.
short answer:
this years tuition is $2662.
next years tuition is $2928.
Rectangular prism area: 2(wl+hl+hw)
Cylinder area: 2πrh+2πr squared.
Sphere area: 4πr squared.
Cube- 2((4*3)+(5*3)+(5*4)). 2(12+15+20). 2(47). 94.
Cylinder- approximately 100.53.
Sphere- approximately 50.27
94+100.53+50.27= 245.23.
Which is around D so I would go with D. They must have approxicized it a little differently than me.