Texas Mathematics Teacher Spring/Summer 2020 - 43

Breaking the Routine in Mathematics
Lock Tasks

Corresponding Lock

1. RadGames charges an entrance fee of $5.00 and $0.65 per ticket for each game. GamesRock
charges an entrance fee of $10.00 and $0.45 per ticket for each game. How many tickets
much be purchased in order for the total cost at RadGames and GamesRock to be the same?

Directional lock
Set to ↓ ↑ ← ➔ ←

25
10
50
75
2. Adrienne invests $15,000 in a bank account that pays 4% annual simple interest. Adrienne
will not make any additional deposits or withdrawals. How much interest will Adrienne
earn on her investment at the end of 3 years?
$1,800
$600
$450
$1,873
3. What value of x makes this equation true?
0.6x - 5 = 0.1x + 7
4
14
24
6
4. Jonathan has $650 to deposit into two different savings accounts.
* Jonathan will deposit $400 into an account at BankOne, which earns 3.5% annual simple
interest.
* Jonathan will deposit $250 into an account at StateBank, which earns 31/4% interest compounded annually.
* Jonathan will not make any additional deposits or withdrawals. What amount is closest to
the total balance of these two accounts at the end of 2 years?
$672.13
$695.00
$694.25
$694.51
5. The measures of two angles are (5x + 24)° and (9x - 17)°.
What is the value of x if these two angles are congruent?
1.75
13.2
0.5
10.25

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Texas Mathematics Teacher Spring/Summer 2020

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http://www.brightcopy.net/allen/txmt/68-02
http://www.brightcopy.net/allen/txmt/68-01
http://www.brightcopy.net/allen/txmt/67-01
http://www.brightcopy.net/allen/txmt/66-02
http://www.brightcopy.net/allen/txmt/66-01
http://www.brightcopy.net/allen/txmt/65-02
http://www.brightcopy.net/allen/txmt/65-01
http://www.brightcopy.net/allen/txmt/64-02
https://www.nxtbook.com/allen/txmt/64-1
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