Prealgebra

# Practice Test

PrealgebraPractice Test

### Practice Test

406.

For the numbers $0.18349…,0.2–,1.67,0.18349…,0.2–,1.67,$ list the rational numbers and irrational numbers.

407.

Is $144144$ rational or irrational?

408.

From the numbers $−4,−112,0,58,2,7,−4,−112,0,58,2,7,$ which are integers rational irrational real numbers?

409.

Rewrite using the commutative property: $x·14=_________x·14=_________$

410.

Rewrite the expression using the associative property: $(y+6)+3=_______________(y+6)+3=_______________$

411.

Rewrite the expression using the associative property: $(8·2)·5=___________(8·2)·5=___________$

412.

Evaluate $316(163n)316(163n)$ when $n=42.n=42.$

413.

For the number $2525$ find the additive inverse multiplicative inverse.

In the following exercises, simplify the given expression.

414.

$3 4 ( −29 ) ( 4 3 ) 3 4 ( −29 ) ( 4 3 )$

415.

$−3 + 15 y + 3 −3 + 15 y + 3$

416.

$( 1.27 q + 0.25 q ) + 0.75 q ( 1.27 q + 0.25 q ) + 0.75 q$

417.

$( 8 15 + 2 9 ) + 7 9 ( 8 15 + 2 9 ) + 7 9$

418.

$−18 ( 3 2 n ) −18 ( 3 2 n )$

419.

$14 y + ( −6 z ) + 16 y + 2 z 14 y + ( −6 z ) + 16 y + 2 z$

420.

$9 ( q + 9 ) 9 ( q + 9 )$

421.

$6 ( 5 x − 4 ) 6 ( 5 x − 4 )$

422.

$−10 ( 0.4 n + 0.7 ) −10 ( 0.4 n + 0.7 )$

423.

$1 4 ( 8 a + 12 ) 1 4 ( 8 a + 12 )$

424.

$m ( n + 2 ) m ( n + 2 )$

425.

$8 ( 6 p − 1 ) + 2 ( 9 p + 3 ) 8 ( 6 p − 1 ) + 2 ( 9 p + 3 )$

426.

$( 12 a + 4 ) − ( 9 a + 6 ) ( 12 a + 4 ) − ( 9 a + 6 )$

427.

$0 8 0 8$

428.

$4.5 0 4.5 0$

429.

$0 ÷ ( 2 3 ) 0 ÷ ( 2 3 )$

In the following exercises, solve using the appropriate unit conversions.

430.

Azize walked $412412$ miles. Convert this distance to feet. $(1 mile=5,280 feet).(1 mile=5,280 feet).$

431.

One cup of milk contains $276276$ milligrams of calcium. Convert this to grams. $(1 milligram=0.001 gram)(1 milligram=0.001 gram)$

432.

Larry had $55$ phone customer phone calls yesterday. The calls lasted $28,44,9,75,and5528,44,9,75,and55$ minutes. How much time, in hours and minutes, did Larry spend on the phone? $(1 hour=60 minutes)(1 hour=60 minutes)$

433.

Janice ran $1515$ kilometers. Convert this distance to miles. Round to the nearest hundredth of a mile. $(1 mile=1.61 kilometers)(1 mile=1.61 kilometers)$

434.

Yolie is $6363$ inches tall. Convert her height to centimeters. Round to the nearest centimeter. $(1 inch=2.54 centimeters)(1 inch=2.54 centimeters)$

435.

Use the formula $F=95C+32F=95C+32$ to convert $35°C35°C$ to degrees $FF$

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