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Ugo [173]
2 years ago
14

A total of 620 tickets were sold for the school play. They were either adult tickets or student tickets. There were 70 more stud

ent tickets sold than adult tickets.
How many adult tickets were sold?
Mathematics
2 answers:
Phoenix [80]2 years ago
8 0

Answer:

There were 240 adult tickets sold and 380 student tickets sold.

Step-by-step explanation:

How did I get this?

First, I divided 620 by 2. You get 310. Then I subtract 70 by on of the 310's. You get 240. I take that 70 that I subtracted and add it to the other 310, you get 380. (This may sound confusing so I will write it out)

620/2= 310

310-70= 240 adult tickets

310+70=380 student tickets

AlexFokin [52]2 years ago
4 0

Answer:

22

Step-by-step explanation:

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Dimas [21]

Answer:

x = -44/13

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Step-by-step explanation:

Using matrix form means using the crammers rule

The matrix form of the expression is written as;

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AX = B

taking the determinant of A;

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|A| = 8 + 5

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After replacing the first row with the column matrix;

A_x =\left[\begin{array}{ccc}9&5\\7&-1\\\end{array}\right]

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similarly for y

A_x =\left[\begin{array}{ccc}8&9\\-1&7\\\end{array}\right]

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6 0
3 years ago
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Step-by-step explanation:

7 0
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A father is 60 yrs old son is half his age .How old was the boy when his father was four times his age
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Answer:

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