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gulaghasi [49]
3 years ago
13

At a local Zoo a child ticket costs $8.50 and an adult ticket costs $12.50. On one weekend in June they sold a total $1,374 wort

h of tickets. A total of 140 tickets were sold. Write a system of equations that can be used to find how many of each ticket was sold?
Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Answer:

1,374= 8.50x + 12.50y

140= x+y

Step-by-step explanation:

Let x= the # of children

Let y= the # of adults

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What two numbers multiply together to equal -15 and add together to equal -14?
4vir4ik [10]

Answer:

-15 and 1

Step-by-step explanation:

-15x1=-15

-15+1= -14

3 0
2 years ago
3.
zheka24 [161]

Answer:

20

Step-by-step explanation:

Sn = (n/2)(a1 + a1 + d(n-1)), where S = sum, a1 = first term, n = number of terms, d = common difference

 

400 = (n/2)(1 + 1 + 2(n - 1))

400 = (n/2)(2  + 2n - 2)

400 = (n/2)(2n

400 = n2

20 = n

 

Twenty numbers are in the set.

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3 years ago
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JulijaS [17]
You start by dividing both sides by 3 and you get your answer for x.
4 0
3 years ago
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In City Lake, researchers caught, marked, and released 176 bass. Later, they took a sample of 91 bass and found that 13 were mar
konstantin123 [22]

Answer:

If x is the total number of bass in the lake we can write the following proportion: 176 / x = 13 / 91. 13 / 91 simplifies to 1 / 7 so the proportion becomes 176 / x = 1 / 7. Using the Cross Products Property this becomes x = 1232.

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3 years ago
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boris's super metal detector not only helped him win the science fair but also helped him find $6.20 in nickels and dimes yester
Tcecarenko [31]

Answer:

32 Nickels

Step-by-step explanation:

Given

Coins: Nickels (N) and Dimes (D)

$0.05 = 1 nickel and $0.10 = 1 dime

So, the amount implies:

0.05N + 0.10D = 6.20

The number of coin implies:

D = 14 + N

Required

Determine the number of nickels found

Substitute 14 + N for D in 0.05N + 0.10D = 6.20

0.05N + 0.10(14 + N) = 6.20

0.05N + 1.4 + 0.10N = 6.20

Collect Like Terms

0.05N + 0.10N = 6.20 - 1.4

0.15N = 4.8

Solve for N

N = 4.8/0.15

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Hence, he found 32 nickels

4 0
3 years ago
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