Math Games

Archive for April, 2006

Question: Math Help! 10 points to best answer!?

I need help on these questions!!! 10 points to best answer!!!

Q1. An electronics store has marked the price of a certain game at 230% of their cost. If their cost is $15.00, how much does the game sell for?

a. $6.50
b. $19.50
c. $34.50
d. $49.50

Q2. On a manufacturer's assembly line, 3% of its merchandise comes off defective. If the company has 354 defective items, how many total items came off the assembly line?

a. 10.62
b. 106.2
c. 1,180
d. 11,800

Q3. The football team has played 12 games so far this season. They have won 8 games. What percent of their games has the team lost?

a. 33 1/3 %
b. 67%
c. 75%
d. 80%

Q4. Round the answer to the nearest cent.
The price of an item selling at 150% of its $63 value is $?

Q5. Patsy found a top on the clearance rack marked 60% off the original price. If the original price is $48, how much will Patsy save?

a. $6.00
b. $8.00
c. $19.20
d. $28.80

Thanks!

Answer: How about I show you how to do the first two, and you do the last three yourself?

1) first work out 1% of $15.00
which is just 15/100
(per cent meaning per hundredth, so if you divide by 100 you get the amount per every hundredth)
-then you multiply by 230

15/100 x 230 =34.5, so your answer is c

2) This time 3%= 345
354/3= 118 (1%) multiply by 100 =11800 so your answer is d.

3) Hint: they have won 8/12 games. Divide to find this exact figure, then multiply by 100 to get the percentage.

4) hint: 100%=$63 dollars. Find 1% first. Multiply by 150.

5) find New price then work out the saving. (100%=$48, 48/100 will give you 1%. Multiply by 60 for amount off, which is price saved.)

Hope it helps

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Below are answers to binary number system free Math Games: 

Answers to Binary number free math game 1:

• 21 ₁₀ = 10101 ₂

248.625 ₁₀ = 11111000.101 ₂

2,003,481 ₁₀ = 11101001001000011001 ₂

0.3125 ₁₀ = 0.0101 ₂

Answers to Binary number free math game 2:

Translate the following binary numbers into decimal notation and then do the indicated operations if any: 

• 1010 ₂ = 10 ₁₀

11001 ₂ = 25 ₁₀

1100 ₂ + 011 ₂ = 12₁₀ + 3₁₀ = 15₁₀

1010 ₂ + 101 ₂ - 10 ₂ = 10₁₀ + 5₁₀ - 2₁₀ = 13₁₀

111 ₂ + 1010 ₂ - 11 ₂ = 7₁₀ + 10₁₀ - 3₁₀ = 14₁₀

1001 ₂ x 110 ₂ = 9₁₀ x 6₁₀ = 54₁₀

For free Math Games to the above answers to binary number free Math Games, click here.