Answer:
olk 69 -_-
Step-by-step explanation:
To solve this, we must set up a
Systems of Equations problem
Let's say
C stands for
Coach seats bought and
S stands for
sleeper cars bought
Here are our equations we have enough information to make.
c + s = 93 115c + 290s = $20,320 Lets solve for Coach seats first
To do that we need a value for s
In the first equation,
s = 93 - cLets plug that in for S in the second equation
115c + 290(93 - c) = $20,320 Distribute and simplify
115c + 26,970 - 290c = $20,320
Combine like terms
-175c + 26,970 = $20,320
-175c = -6650
divide
c =
c = 38We just found out 38 coach seats were bought.
Plug in 38 for C in this equation ⇒ 115c + 290s = $20,320 to find S
115(38) + 290s = $20,320 Distribute and Simplify
4,370 + 290s = $20,320
290s = $15,950
Divide
S =
S = 55We just completed the problem!
38 Coach seats were bought and 55 Sleeper car seats were bought.
Answer:
74.33
Step-by-step explanation:
We need to figure out the surface area. The formula for surface area is A=2πrh+2πr2
We substitute r with the radius of this cylinder and the h represents the height of this cylinder. The height we can find because we just add the diameters of the tennis balls. So 2.6*3 = 7.8. Then we get the radius, which will just be the radius of a sphere, so 1.3. Then we plug them into the formula, giving us 74.33
<span><span><span><span>3x</span>+12</span>+<span>7x</span></span>+x</span>Combine Like Terms:<span>=<span><span><span><span>3x</span>+12</span>+<span>7x</span></span>+x</span></span><span>=<span><span>(<span><span><span>3x</span>+<span>7x</span></span>+x</span>)</span>+<span>(12)</span></span></span><span>=<span><span>11x</span>+12</span></span>Answer:<span>=<span><span>11x</span>+<span>12</span></span></span>
Answer:
.84 x 10 ^4
Step-by-step explanation:
hope this helps!!!
i just got done with these, please mark brainliest