Answers25-26 Summer - Humble ISD CR - Algebra 1 A - 2nd Nine WeeksUnit Test

Unit Test — Unit test Answers

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21
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What is the solution to this system of linear equations?x + y = 4x − y = 6

A
(4, 6)
B
(6, 4)
C
(5, −1)
D
(−1, 5)
22
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What is the value of y in the solution to the system of equations?x + y = 12x – 3y = –30

Question illustration
A
–8
B
–3
C
3
D
8
23

A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo. A private contractor charges $75 per hour to develop a logo plus a $100 supply fee.Which equation can be solved to determine x, the number of hours after which the costs would be the same?

A
50x + 250 = 75x + 100
B
50 + 250x = 75 + 100x
C
50x + 100 = 75x + 250
D
50 + 100x = 75 + 250x
24

A pilot flew a 400-mile flight in 2.5 hours flying into the wind. Flying the same rate and with the same wind speed, the return trip took only 2 hours, with a tailwind.What was the speed of the wind?

A
20
B
40
C
160
D
180
25

The sum of two numbers is 28. The first number, x, is three times the second number, y.

A
A system of equations. x plus y equals 28. x equals 3 plus y.
Option A
B
A system of equations. x y equals 28. x equals 3 y.
Option B
C
A system of equations. x y equals 28. x equals 3 plus y.
Option C
D
A system of equations. x plus y equals 28. x equals 3 y.
Option D

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