Answer:
y=2.
Step-by-step explanation:
What you need to do is cross multiplication. So it will be 9(4-2y)=-3(3y-6).
You will then distribute the -3 and the 9 into the equation to get 36-18y=-9y+18.
You will then add the y's together to get -9y+36=18.
You will then subtract the 18 from both sides to get -9y=-18.
y=2 is your answer.
Answer:
Step-by-step explanation:
14
SA = 2 pi r * x + 2* pi r^2
r = 6
SA = 2 pi * 6 * x + 2 * pi * 6^2
SA = 12 pi * x + 72 pi
Volume = pi r^2 * x
Volume = pi 36 x
Now volume and surface area are made to be equal so
Volume = Surface area
36 pi x = 12 pi x + 72 pi Divide through by pi
36x = 12x + 72 Subtract 12x from both sides
24x = 72 Divide by 24
x = 72/24
x = 3
15 is done exactly the same way. You can try it yourself. Only the numbers are different. Use 10 for the radius. You should get x = 2.5
The answer is 11<span>(<span>x+5</span><span>)</span></span>
Answer:
x = 30
Step-by-step explanation:
All the angles on a point add up to 360°. Thus, you can find 2x easily.
2x = 360° - 300°
= 60
x = 60 ÷ 2
= 30
The formula for an equation is y=mx+b. M is the slope and B is the y-intercept. Since the slope is -1 and the y-intercept is -6 the equation would be y=-1x-6
