Algebra
2x + 5x =
7x
Vertically opposite angles are ...
equal
What is 1.5% as a fraction? (Simplified)
3/200
Complete the following equivalent ratio:
20:12 = ?:3
5
What is the radius of a circle with an area of 141cm2, correct to 1 decimal place?
6.7
Evaluate the following expression given that a=6, b=4, and c=7:
3c+5a-ab
27
The angle sum of a triangle is
180
What is 12/25 as a percentage?
48%
The ratio of cows to sheep on a farm is 3:8. If there are 240 cows on the farm, how many sheep are there?
640
A triangle has sides 8,15 and 17.
Classify this triangle in terms of its side and angles.
Right-angled scalene
Expand the bracket:
-7(3x-2)
-21x+14
A quadrilateral with exactly one pair of parallel sides is...
trapezium
A $45 shirt is discounted by 40%. What is the sale price of the shirt?
$27
The ratio of length to width of a rectangle is 6:5. If the perimeter is 66cm, how many centimeters is the width of the rectangle?
30cm
The cost of a shirt is $73.70 inclusive of GST.
What is the price of the shirt wihout GST?
67
Solve:
c + 2=-14 - c
-8
Cointerior angles in parallel lines are...
supplementary
A nature reserve has an area of 57,000km^2. Its area is increased by 35%. What is its new area?
76,950km^2
Simplify the ratio:
3/5 : 2/6
9:5
Emma planted sunflowers in the community garden. During her last visit to the garden, the plants were 80 inches tall. Today they are 92 inches tall. What is the percent of increase in the height of the sunflowers?
15%
Solve:
7(x-5)=3(x+3)
x=11
What quadrilateral am I?
I have two pairs of adjacent sides that are equal. One diagonal is a perpendicular bisector of the other diagonal.
Kite
Michelle paid $153 after receiving a discount of 15% on a new pair of headphones. How much did the headphones cost before the discount?
$180
A sprinter is running at 10m/sec.
What is their speed in km/hr?
36km/hr
$90 is increased by 9% then decreased by 9% then increased by 10%. What is it worth now? (2 decimal places)
98.20