Question 1 Answer & Explanation - SAT Algebra

HackSAT

Need Help?

Check our guide for tips on how to use this platform effectively.

algebra

The length of a rectangle is $2x + 3$ and the width is $x$ . If the perimeter is 42, what is the value of $x$ ?

Correct Answer: C

Choice Choice C is the correct answer.

Perimeter Formula: $P = 2(L + W)$
Substitute: $42 = 2((2x + 3) + x)$
Simplify: $42 = 2(3x + 3) \rightarrow 42 = 6x + 6$
Subtract 6: $36 = 6x$
Divide by 6: $x = 6$
Verify: $L=15, W=6$ . $2(15+6) = 42$ ✓

Choice Choice B is incorrect because calculation error.

Choice Choice D is incorrect because calculation error.

Question 2 →

Back to Set

Linear Functions Set 31

All Practice Sets

Linear Functions (99)

Linear Functions Set 1
Linear Functions Set 2
Linear Functions Set 3
Linear Functions Set 4
Linear Functions Set 5
Linear Functions Set 6
Linear Functions Set 7
Linear Functions Set 8
Linear Functions Set 9
Linear Functions Set 10
Linear Functions Set 11
Linear Functions Set 12
Linear Functions Set 13
Linear Functions Set 14
Linear Functions Set 15
Linear Functions Set 16
Linear Functions Set 17
Linear Functions Set 18
Linear Functions Set 19
Linear Functions Set 20
Linear Functions Set 21
Linear Functions Set 22
Linear Functions Set 23
Linear Functions Set 24
Linear Functions Set 25
Linear Functions Set 26
Linear Functions Set 27
Linear Functions Set 28
Linear Functions Set 29
Linear Functions Set 30
Linear Functions Set 32
Linear Functions Set 33
Linear Functions Set 34
Linear Functions Set 35
Linear Functions Set 36
Linear Functions Set 37
Linear Functions Set 38
Linear Functions Set 39
Linear Functions Set 40
Linear Functions Set 41
Linear Functions Set 42
Linear Functions Set 43
Linear Functions Set 44
Linear Functions Set 45
Linear Functions Set 46
Linear Functions Set 47
Linear Functions Set 48
Linear Functions Set 49
Linear Functions Set 50
Linear Functions Set 51
Linear Functions Set 52
Linear Functions Set 53
Linear Functions Set 54
Linear Functions Set 55
Linear Functions Set 56
Linear Functions Set 57
Linear Functions Set 58
Linear Functions Set 59
Linear Functions Set 60
Linear Functions Set 61
Linear Functions Set 62
Linear Functions Set 63
Linear Functions Set 64
Linear Functions Set 65
Linear Functions Set 66
Linear Functions Set 67
Linear Functions Set 68
Linear Functions Set 69
Linear Functions Set 70
Linear Functions Set 71
Linear Functions Set 72
Linear Functions Set 73
Linear Functions Set 74
Linear Functions Set 75
Linear Functions Set 76
Linear Functions Set 77
Linear Functions Set 78
Linear Functions Set 79
Linear Functions Set 80
Linear Functions Set 81
Linear Functions Set 82
Linear Functions Set 83
Linear Functions Set 84
Linear Functions Set 85
Linear Functions Set 86
Linear Functions Set 87
Linear Functions Set 88
Linear Functions Set 89
Linear Functions Set 90
Linear Functions Set 91
Linear Functions Set 92
Linear Functions Set 93
Linear Functions Set 94
Linear Functions Set 95
Linear Functions Set 96
Linear Functions Set 97
Linear Functions Set 98
Linear Functions Set 99
Linear Functions Set 100