128.Simplify the expression (0.2x–2)–1+ ^25 x^2 – (^52 xx
4
) 2.a.^8230 x^2
b.^29 x^2
c.– 421 x^2
d.none of the aboveSet 9 (Answers begin on page 162)
This problem set focuses on interpreting verbal math-
ematical statements as symbolic algebraic expressions.
129.Two less than four times the square of a number
can be represented as which of the following?
a.2 – 4x^2
b. 4 x^2 – 2
c.(4x)^2 – 2
d.both band c
130.If the volume Vin a water tank is increased by
25%, which of the following expressions repre-
sents the new volume of water?
a.V+ ^14 V
b.1.25V
c.V+ 0.25V
d.All three choices are correct.
131.Jonathon is paying a math tutor a $30 one-time
fee plus $40 per hour for time spent tutoring.
Which of the following equations indicates how
to compute x, the total amount Jonathon will
be charged for hhours?
a.x= $30h+ $40
b.x= $30 + $40h
c.x= ($30 + $40)h
d.x= $30h– $40
e.($30 – $40)h
132.Which of the following expressions represents
nine less than three times the sum of a number
and 5?
a.3(x+ 5) – 9
b.(3x+ 5) –9
c.9 – 3(x + 5)
d.9 – (3x+ 5)133.A hotel charges $0.35 for the first minute of a
phone call and $0.15 for each additional
minute of the call. Which of the following
equations represents the cost yof a phone call
lasting xminutes?
a.y= 0.15(x– 1) + 0.35
b.x= 0.15(y– 1) + 0.35
c.y= 0.15x+ 0.35
d.x= 0.15y+ 0.35134.Which of the following expressions represents
half the difference between a number and five?
a.x – 5
b.^12 (x– 5)
c.^12 x– 5
d.5 – ^12 x135.Which of the following expressions describes
the sum of three numbers multiplied by the
sum of their reciprocals?
a.(a+b+ c) + (^1 a)(^1 b)(^1 c)
b.a(^1 a) + b(^1 b) + c(^1 c)
c.(a+ b+ c) (^1 a+ ^1 b+ ^1 c)
d.(a)(b)(c) + (^1 a)(^1 b)(^1 c)136.Which of the statements below represents the
equation 3x + 15 = 32?
a.15 less than 3 times a number is 32.
b.32 times 2 is equal to 15 more than a number.
c.15 more than 3 times a number is 32.
d.3 more than 15 times a number is 32.- PRE-ALGEBRA FUNDAMENTALS–