Answer:
the correct answer is D
Step-by-step explanation:
we need to find the statement that does not correctly use probability to describe an event. Hope this helps
Answer:
A C
Step-by-step explanation:
Answer:
Step-by-step explanation:
Leah wants to earn at least 120 dollars a month and she has two job options. This is written as
5x + 8y > 120
She also can't work more than 20 hours, leading us to the second equation
x + y = 20
First we solve for one variable
y = 20 - x
then substitute it into the first equation
5x + 8(20 - x) = 120
Solve for x
5x + 160 - 8x = 120
3x = 40
x = 40/3
Then we solve for y
y = 20 - x
y = 20/3
x < 40/3
y > 20/3
B and D will not work because their x+y is greater than 20.
E will also not work because the value is less than 120
Answer:No friend is wrong
Step-by-step explanation: you actually get two answers. After you isolate the absolute value then you take the positive and negative number of what it's set equal too.
|3x + 8| - 9 = -5 add 9 to isolate the absolute value
|3x + 8| = 4
Now set two equations because the abosulte value has two answers.
|3x + 8| = 4. and |3x + 8| = -4
Solve these by removing the absolute value bars.
3x = -4. 3x = -12
x = -4/3. X = -4
Answer: 3 x n -10 = n + 4
Step-by-step explanation:
n is your number,
3 times a number is 3 x n;
10 less than 3 times a number is 3 x n - 10
same means equality, we will use "="sign
3 x n - 10 = ...
n is your number
number plus 4 is (n + 4) --->
final expression is:
3 x n - 10 = n + 4
