Calculations
State the following numbers to 1 sig fig: 606.3, 0.312, 19.93
600, 0.3, 20
Find the value of a 10% discount on an item costing $104000
How many square centimetres are in one square metre?
10,000
Simplify: 10y - 2y
8y
Joshua has 1/4 of $3660 while Mary has 1/5 of $5995. Who is richer?
Mary
Find the new price of an item costing $25 if there is a markup of 25%.
$31.25
Ben sold 2 glasses of milk for every 5 Frutees he sold. If he sold 10 glasses of milk, how many sodas did he sell?
25
Simplify: 6x + 15 -2x + 8
4x + 23
Joey participated in a dance-a-thon. His team started dancing at 10 a.m. on Friday and stopped at 6 p.m. on Saturday. How many hours did Joey’s team dance?
32 hours
A man donates 5% of his salary to charity. If he gives $200.00 to charity, what was his salary?
$4000
Convert 132 base 4 to base 10
30
Calculate the value of 4bc if b = 2, and c = 12.5
100
Erin is painting a bathroom with four walls each measuring 8 ft by 5.5 ft. Ignoring the doors or windows, what is the area to be painted?
176 square feet
A television set which can be bought for cash for $1800 for cash or on Hire Purchase with a deposit of $350 and 18 monthly payments of $110. Calculate the total hire purchase price.
$2330
Arrange the following in order from largest to smallest: 0.709, 0.087, 0.78. 0.87, 0.0009
0.87, 0.78, 0.709, 0.087, 0.0009
5r - 7 = 58
r = 13
Justin earned scores of 85, 92 and 95 on his science tests. What does he need to earn on his next science test to have an average (arithmetic mean) of 93%?
100
Ashley buys a pair of gloves in a 20% sale. She gets a second discount of 10% on the discounted price. If the gloves cost $7.50, how much does she pay?
$5.40
Find the LCM of 12, 15, and 60. Multiply that number by 13.5 and write the answer to 6 significant figures.
810.000
Solve for x: 9x - 6 = -3x + 30
x = 3