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ehidna [41]
3 years ago
8

Simplify the expression 3x+4x+5x=

Mathematics
1 answer:
Dmitry [639]3 years ago
8 0
12x =

Just added 3 and 4 and 5 to get twelve
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A bouncing ball reaches a height of 54 inches at its first peak, 36 inches at its second peak, and 24 inches at its third peak.
steposvetlana [31]
54, 36, 24 are the 1st 3 element of a geometric progression with 2/3 as a common ratio: PROOF:
the 1st term is 54, (a₁= 54) the 2nd term a₂ = 24, then
(a₂ = a₁.r) or 36 = 54.r → r= 36/54 = 2/3. Same logique for the 3rd term. 
So 2/3 is common ratio. We know that :U(n) = a.(r)ⁿ⁻¹. Then if a =54 and r = x (given by the problem), then f(x) = 54.xⁿ⁻¹
n, being the rank of any element of this geometric progression

7 0
3 years ago
Read 2 more answers
You sell lemonade around town and you can make $0.30 from each bottle of lemonade. The total amount of money you earn is 0.3b, w
noname [10]

Answer:

$9

Step-by-step explanation:

Cost per bottle of Lemonade = $0.30

Let b represent the number of bottles that you sell which is given as:

30 bottles

Equation for solving

= 0.30 × b

= 0.30b

Hence,

Total cost for 30 bottles of Lemonade is:

0.30 × 30

= $9

Hence, you can make $9 from selling 39 bottles of Lemonade.

6 0
3 years ago
Find the sum of x and y.<br><br> A.14<br><br> B.30<br><br> C.50<br><br> D.104
Oxana [17]
The answer is d i got it right message me 
5 0
3 years ago
What is the surface area of this figure?
Sindrei [870]

Answer:

328

Step-by-step explanation:

3 0
3 years ago
Simplify the following expression: 2x-2y+5z-2x-y+3z. A.x-3y+8z. B.2x-2y+8z. C.3y+8z. D.-3y+8Z Plzzzzzzzz help
Sergeu [11.5K]
Hello there ^ _ ^

2x - 2y + 5z - 2x - y + 3z
The first thing you need to do is to put all the common terms together.

2x - 2x - 2y - y + 5z + 3z
2x - 2x = 0 or nothing so we don't need to put that in the solution
-3y + 8z

The correct option is D



With Brainly, A+ guaranteed!  
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3 0
3 years ago
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