Chapter 3 =(
2x + 3 = 11
x = 4
Write in slope intercept form:
m = 3, b = 2
y = 3x + 2
Elimination:
3x + y = 11
x - y = 9
x = 5 , y = -4
The diameter of a beach ball is 18 cm. Find the Surface Area (SA)
1017.4
Why was Miss. Druker in New York now?
For her friends wedding!
Find out which one it is: Infinite Solution, No solution, One solution.
5 (6x - 3) = 30 (1+x)
No solution
Find slope of points (8, -2) (2, -6)
2 over 3
Substitution:
5j + k = 1k
k = j - 8
j = 1.5 , k = -6.5
A triangular pyramid has a base of 5 cm and a height of 3 cm. The height of the pyramid is 6 cm. Find the volume.
15 cm3
DOUBLE JEAPORDY!
What starts with a "P" and ends with an "e" and has thousands of letters?
Post Office
Find Y when X= -2: 3x - 11 = 2(y - 4)
Y = -4.5
Re-write in slope intercept form:
2y = 4x + 6
y = 2x + 3
Elimination:
3a + 2b = 8
5a + 3b = 4
a = -16 , b=28
A cone has a radius of 6 cm and a slant height of 8 cm. What is the lateral area?
150.7 cm2
What color eyes do Miss Druker have?
one dark brown
One light brown
4x -2 over 8 + 3+x over 4 = 1 over 2
DOUBLE JEAPORDY!
X=0
Rewrite this equation in slope intercept form:
5x - 3y = 15
y = -5 over 3 x - 5
DOUBLE JEAPORDY!
Substitution:
6s - 3t = 48
s + 2t = 3
t = -2 , s = 7
A safety cone has a height of 30 in and a volume of 2,009.6 in. What is the radius?
8 in
I have no wings but I can fly. I have no eyes but I can cry. What am I?
A cloud
Find out which one it is: Infinite Solution, No solution, One solution:
1 over 3 (x-3) = 1 over 3x - 1
infinite solution
Write equation in slope intercept form: that has a slope of 1 over 4 and passes through (4,-1)
y = 1 over 4 x -2
Lauren spent $60 on lipstick and 2 hair gels. For the same amount of money, she can buy 3 lipsticks and 1 hair gel.
a) write out the equation
b) How much did each lipstick and hair gel cost?
DOUBLE JEAPORDY!
a) 1L + 2H = 60
3L + 1H = 60
b) L = $12
H = $24
A sphere has a volume of 113.04 in. What is the radius?
3 in
what does Miss Druker bring for "breakfast?" every day?
DOUBLE JEAPORDY!
Smoothies