Math Practice (not finished)

2/3(J+T)

1/10(J + T)

Which is true? A) 2/25 < 1/10 B) 1/10 > 3/30 C) 2/28 < 3/35 D) 5/13 = 4/5

A) 2/25 < 1/10

12000

1200

2000

1400

2 1/2

2 2/5

74

215

2x/t - z

2x/t + z

3 hrs 46 min 36 sec

3 hrs 24 min 22.5 sec

41

35

220

55

6 + √2

6 + √2

22°

72°

120°

90°

150

< 50

X - X/2 = ? A) X/2 B) 2X C) 4X D) 3X/2

A) X/2

A marine fired X rounds of ammunition, gave 2X to his buddy, and had 27 remaining in a magazine. If this accounted for 120 rounds in all, then X = ? A) 30 B) 31 C) 93 D) 120

B (27 = 120 - X - 2X)

(0.2)² = ? A) 0.02 B) 0.04 C) 0.2 D) 0.4

B) 0.04

The destruction of a particular bridge requires 3 1/2 tons of C4 explosive. How many tons of C4 would be required to destroy 1/3 of the bridge? A) 1 B) 1 1/16 C) 1 1/3 D) 2 1/4

B) 1 1/6 ( ( 3 1/2 ) / (3) = 1 1/6 )

The avg of 1/25 and 1/100 is ? A) 1/50 B) 1/40 C) 1/20 D) 5/100

B) 1/40

In the figure, if ACD is a straight line and AB = BC, then X = ? A) 90 B) 135 C) 145 D) 180

B) 135

Which is the following fractions is the largest? A) 1/2 B) 3/4 C) 5/8 D) 11/16 E) 23/32

B) 3/4

If 3 times x exceeds 1/3 of y by 9, which of the following is the equation that shows the relationship between x and y? A) 3x > 1/3y + 9 B) 3x - 1/3y = 9 C) x - 3y =3 D) 9x > y +27

B) 3x - 1/3y = 9

If 100 times x is between 50 and 100, then x could be ? A) .50 B) .25 C) .75 D) 1.00

C) .75

If 20% of a number is 2.5, what is the number? A) 1.25 B) 10 C) 12.5 D) 25

C) 12.5 ( .2*X = 2.5 )

If (Y*Y*Y)/(Y+Y) = 2, then Y = ? A) 0 B) 1 C) 2 D) 4

C) 2 ( y^3 / 2y = 2 ) -> ( y^3 / y = 4 ) -> ( y^2 = 4 )

Arrange these fractions in order of size from largest to smallest: 1/3, 2/5, 4/15 A) 4/15, 2/5, 1/3 B) 2/5, 4/15, 1/3 C) 2/5, 1/3, 4/15 D) 1/3, 4/15, 2/5 E) 1/3, 2/5, 4/15

C) 2/5, 1/3, 4/15

300% is the same as A) 0.03 B) 0.3 C) 3 D) 300

C) 3

The perimeter of a rectangle is 180 ft, and the width is 1/2 of the length. What is the length? A) 30 ft B) 60 ft C) 90 ft D) 100 ft

C) 60 ft ( 180 ft = 2*( L + .5*L ) )

What is the area, in square ft, of the figure? A) 32 B) 54 C) 63 D) 72

C) 63

The avg temperature during a 4 day period was 73°F. If the temperature on the first 3 days was 75, 74, and 70, what was the temperature on the 4th day? A) 71 B) 72 C) 73 D) 75

C) 73 ( .25*( 75 + 74 + 70 + X ) = 73

What is the sum total of degrees in a 3 angle triangle? A) 90 B) 100 C) 120 D) 180

D) 180

X/4 + X = ? A) X/4 B) 2X/4 C) 4X D) 5X/4

D) 5X/4

74 - ( 12 - 20 ) = ? A) 42 B) 56 C) 66 D) 82

D) 82

It cannot be determined from the information given

The one selected from ammo can X

4

j = 2

16x +4

x² + 4x