Answer:
x = -3/4
Step-by-step explanation:
<u>Step 1: Identify the equation</u>
8x + 3 = 4x
<u>Step 2: Move x's to one side and number to the other side</u>
8x + 3 - 4x - 3 = 4x - 4x - 3
4x = -3
<u>Step 3: Make x by itself</u>
4x / 4 = -3 / 4
x = -3/4
Answer: x = -3/4
<span>1,295.01 is the correct answer</span>
Answer:
The expected value of:
X = 3 green marbles
Step-by-step explanation:
Number of marbles in a bag = 11
Make-up of the bag = 6 red and 5 green marbles
Sussan selects 7 marbles from the bag
The probability of collecting from 5 of the green marbles = 0.45
The probability of collecting from 6 of the red marbles = 0.55
The expected value of X = the probability of selecting a green marble multiplied by the number of marbles selected
= 0.45 x 7
= 3 green marbles
Answer:
Step-by-step explanation:
1. -3( x - 4) = 2x + 4 - x
-3x + 4 = x + 4
4 = 2x + 4
2x = 0
x = 0
2. 4 + 2 (x - 2) = 2 (x - 1) + 2
4 + 2x - 4 = 2x + 2 + 2
2x = 2x + 4
x = 4
3. 3(x - 4) = 2x - 7 + x
3x - 12 = 3x - 7
x = 5
4. 4x + 15 = 3(x + 5)
4x + 15 = 3x + 15
x = 0
5. 2(x - 3)
for the rest i'm confuse what it is suppose to be