# Posts by Annonom

Total # Posts: 20

**Math--**

A brick layer is hired to build three walls of equal length. He has bricks which are 9 inches, 27 inches, and 21 inches long. He plans to build one wall out of each type of brick. What is the shortest length of wall possible? A) 5103 inches B) 57 inches C) 189 inches D) 567 ...

**Math--**

Identify the property or theorem which justifies the statement. 7 × 3 is an integer A) Associative property B) Inverse property C) Closure property D) Multiplicative identity

**Math--**

Compute the value of the given expression. - I -15 I - 21 I BTW the I are suppose to be straight lines ;) A) -36 B) 6 C) -6 D) 36

**Math--**

Find the least common multiple for the numbers. 56 and 96 A) 1344 B) 168 C) 672 D) 224

**Math--**

Decide whether or not the set is closed under addition. {0, 1} A) Closed B) Not closed

**Math-**

Find the multiplicative inverse of the number.9 1/7 A) 1/63 B) -9 1/7 C) 1/64 D) 7/64

**Math-**

Express the ratio in simplest form. 5 1/2 days to 2 1/2 weeks A) 11 : 5 B) 5 : 2 C) 11 : 35 D) 77 : 5

**Math-**

Use a proportion to solve the problem. If 4 sandwich rolls cost $1.08, how much will 18 rolls cost? A) $4.32 B) $6.32 C) $5.86 D) $4.86

**Math-**

Write the percent as a fraction in the lowest terms. 7.5% A) 3/40 B) 3/4 C) 3/80 D) 3/20

**Math-**

Solve the problem. If the answer is an amount of money, round to the nearest dollar. Maria has saved $420 at a bank. She wants to accumulate $1250 to attend computer camp. What percent of her goal has been reached? A) 33.6% B) 0.336% C) 30% D) 3%

**Math-**

Solve the proportion. 1/2 = r/17 A) 34 B) 17 C) 8.5 D) 0.03

**Math-**

Find the product. 2 14/31 × 2 5/6 Answers A)2 34/55 B) 1 71/456 C) 19/186 D) 6 88/93

**Math-**

Find the GCF of the numbers. 120, 1000, 2250 A) 20 B) 10 C) 30 D) 50

**Math-**

Find the prime factorization of the number, and write it in exponent form. 8775 A) 3^3 × 5^2 × 13 B) 3^3 × 5^3 × 13 C) 3 × 5^4 × 13 D) 3^4 × 5 × 13

**Math-**

Find all values of the missing digit that make the statement true. 5,33_ is divisible by 11. A) 8 B) 6 C) 1 D) 5

**Math-**

Decide whether or not the first number is divisible by the second. 23,256; 6 A) Yes B) No

**Math**

Convert the base-ten number to a numeral in the indicated base. 503 to base five A) 3040five B) 4030five C) 3004five D) 4003five

**Math.**

Awesome I got it so it is B because it will all equal up to the 20a2 - 16a - 8

**Math.**

Use the distributive property of multiplication over addition to rewrite the sum as a product of two factors, where one of the factors is a sum. 20a2 - 16a - 8 A) a(20a2 - 16a - 8) B) 4(5a2 - 4a - 2) C) 4(5a2 - 4 - 2a) D) 4a(5a - 16 - 8a)

**Math**

Decide whether or not the set is closed under addition. {0, 1} A) Closed B) Not closed