Solving for X
What is the name for the letter x in 2x-4=18?
Variable
What is the formula for area of a triangle?
BxH/2
What is the formula for area of a circle?
A=PI x r2
What is the formula for Circumference of a circle?
C=PIxD
ADD
12.89
06.72
19.61
Solve:
2x=18
9
What is the area?
b=4m
H=8 m
16m2
If a circle has a diameter 20km, what is the radius?
10km
If the radius of a circle is 15m, what is the Diameter?
30m
SUBTRACT
23.42
18.36
5.06
Solve
3x+7=28
x=7
Xavier is painting a triangle onto his wall. The paint costs $5 per meter. The base of his triangle will be 2 meters, and the height will be 6 meters. How much is he going to spend on paint?
$30
A circular outdoor ice rink has a diameter of 25.5m. What is the area of the ice?
510.44m2
The medals at the Olympic Games must be at least 60mm in diameter. To the nearest millimeter find the smallest circumference of an Olympic Medal.
188.4mm
MULTIPLY
8.6
4.3
36.98
X/5+8=10
x=10
Sam and his Dad are planting a triangular garden in their backyard. They can fit 6 daisies per meter2. The height of the garden is 8m, and the base is 11m. The daisies cost $2 per flower. How much is this going to cost them?
$528
Alli is making a outdoor space in her backyard. She will be putting stones down in a circular fashion. The stones will cost $3 per meter. The space she has measures a diameter of 8 meters. How much will Alli pay for the stones?
$150.72
Isaak is ordering some pizza. Stuffed crust is his favorite, but it costs 10 cents per cm of crust. The pizza he orders has a diameter of 45cm. How much extra is he paying for the stuffed crust?
$14.13
DIVIDE
18.72/3
6.24
9x-16=56
x=7
What is the area?
b= 8m
h=12km
4800m2
Deakon is painting a circle in his living room. His blue paint will cost $4 per square meter. The radius of his space is 6m. Deakon got it all painted, but then Cameron said he didn't like the color, so Deakon had to repaint it green. How much did Deakon spend on paint in total?
$226.08
Gabe is practicing skating drills. He skates around the outside of the ice rink. The rink has a radius of 4.5 m. How far does he skate when he goes around the circle twice?
56.52m
Solve
(6.4+8.6)/0.5+2.6x2.2
13.22