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Arturiano [62]
3 years ago
13

Carlos has 24 class play tickets. He sold 3/4 of the tickets.How many tickets did Carlos sell?

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
5 0
He sold 18 tickets. What you do is 4/1 time 3/4 and you'll get 18.
OverLord2011 [107]3 years ago
3 0
He sold 18 tickets class play tickets.  Hope this helps :) 



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An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o
Gnoma [55]

Answer:

C

Step-by-step explanation:

In general for arithmetic sequences, recursive formulas are of the form

aₙ = aₙ₋₁ + d,

and the explicit formula (like tₙ in your problem), are of the form

aₙ = a₁ + (n - 1)d,

where d is the common difference. So converting between the two of these isn't so bad. In this case, your problem wants you to have an idea of what t₁ is (well, every answer says it's -5, so there you are) and what tₙ₊₁ is. Using the formulas above and your given tₙ = -5 + (n - 1)78, we can see that the common difference is 78, so no matter what we get ourselves into, the constant being added on at the end should be 78. That automatically throws out answer choice D.

But to narrow it down between the rest of them, you want to use the general form for the recursive formula and substitute (n + 1) for every instance of n. This will let you find tₙ₊₁ to match the requirements of your answer choices. So

tₙ₊₁ = t₍ₙ₊₁₎₋₁ + d ... Simplify the subscript

tₙ₊₁ = tₙ + d

Therefore, your formula for tₙ₊₁ = tₙ + 78, which is answer choice C.

6 0
3 years ago
Read 2 more answers
Can someone help me with system of equations?
umka21 [38]

#1)

Answer:

x=1 and y=12

Explanation:

y=5x+7

y=2x+10

This system should use substitution because the value of y is given in terms if x.

Substitution:

5x+7=2x+10

Solve:

3x=3

x=1

Substitute x to solve for y by plugging x into one if the original equations(doesn’t matter which one is used).

y=5x+7

y=5(1)+7

y=5+7

y=12

#2)

Answer:

x=-8 and y=2

Explanation:

y=2x+18

9y=-2x+2

This system also uses substitution. The value of y us already given in terms if c in the first equations, so we will substitute in the second equation.

Substitute:

9(2x+18)=-2x+2

Solve:

18x+162=-2x+2

20x=-160

x=-8

Now that we have the value if x, plug it into one of the original equations(doesn’t matter which equation) and substitute to find y.

y=2x+18

Substitute:

y=2(-8)+18

Solve:

y=-16+18

y=2

7 0
3 years ago
Read 2 more answers
Evaluate |3 - 5 + 7|.<br><br> -5<br> 5<br> -15<br> 15
Temka [501]

Answer:

B. 5

Step-by-step explanation:

  • |3 - 5 + 7|=
  • |- 2 + 7 | =
  • | 5 | =
  • 5

<u>Answer is</u>: B. 5

6 0
3 years ago
Which of the following is one way to potentially increase your savings?
Firlakuza [10]

Answer: C

Step-by-step explanation:

7 0
2 years ago
Three times the sum of x and y increased by five times the product of x and y.
Bond [772]
3(x+y) +5 (xy)
U add parenthesis when they say “the sum, the difference, the product ...)
5 0
2 years ago
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