Answer:
Step-by-step explanation:
Huilan = H
Thomas = T
H = 3T
T+3T = 40(This is the sum)
4T = 40
4T/4=T
40/4=10
T=10
#2.
a) 1/4m + 3 = 2
1/4m = -1
m = -4
b) 4y - 3(y + 8) = 12
4y - 3y + 24 = 12
y = -12
For #10, letter b. Do the same thing you did with letter a.
The equation is already given.
You have your y-intercept: -8, and your slope: 3/1.
These two create two different points you can add to your data table.
(0, -8) and (1, 3)
y:-8, 3
x: 0, 1
Answer:
B. (x+8)(x+4)
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
Find the factors of each number
18 - 1, 2, 3, 6, 9, 18
36 - 1, 2, 3, 4, 6, 9, 12, 18, 36
45 - 1, 5, 9, 45
The highest common factor is 9. So there is 9 boxes in a pack.
Roll dice and flip coin:
Probability of rolling a cube and getting a 3 = 1/6 .
Probability of flipping a coin and getting HEADS = 1/2 .
Probability of both = (1/6) x (1/2) .
You do the multiplication.
4 blue, 2 green, 6 red
Probability of a blue on the first draw = 4 out of 12 marbles = 1/3 .
Without putting the blue back in ...
Probability of a red on the next draw = 6 out of 11 marbles = 6/11 .
Probability of both = (1/3) x (6/11) .
You do the multiplication.
