Answer: 
Step-by-step explanation:
Given the equation:
You must solve for "x" to find its value.
You can follow these steps:
- Add 
to both sides of the equation:
- Subtract 9 from both sides of the equation:
- Divide both sides of the equation by 8. Then you get:
Answer:
Step-by-step explanation:
28/3
9.333333333333333
Answer:
y = 2
Step-by-step explanation:
Calculate the slope m and equate to - 
m = 
with (x₁, y₁ ) = (- 2, 4) and (x₂, y₂ ) = (8, y)
m = 
, that is
m = 
= -
Multiply both sides by 10 to clear the fractions
y - 4 = - 2 ( add 4 to both sides )
y = 2
Answer:
a) 0.75
b) 0.0625
c) 0.1875
d) 0.375
Step-by-step explanation:
Let's start by first finding the probability a teacher orders 6 boxes. Since it is a four sided dice, the probability of getting a 1 is going to be 0.25.
Similarly, for any other number on the dice, the teacher orders 2 boxes. We can think of this as NOT rolling a 1. Using our previous answer, this comes out to be: 1 - 0.25 = 0.75
It should be remembered in the following answers that teachers ordering 6 or 2 boxes are not influenced by the results of other teachers. These are statistically independent events.
a) As given above, this probability is 0.75
b) The probability that both teachers order 6 boxes will be their individual probabilities multiplied. This comes out to be: 0.25 x 0.25 = 0.0625
c) Like in part (b), this is both of their probabilities multiplied:
0.25 x 0.75 = 0.1875
d) This is nearly the same as part (c), but with a little twist. The order matters. There are two scenarios:
- First teacher gets 6 boxes, and the second gets 2.
- First teacher gets 2 boxes, and the second gets 2.
Both of these events have a probability of 0.1875, as shown in (c). To get the total probability of this event happening, we must add these together:
0.1875 + 0.1875 = 0.375
Answer: C (24.5 miles more)
Step-by-step explanation:
on Friday she rode 42.4 miles
on Tuesday she rode 17.9 miles
you just subtract Tuesday’s miles from Friday’s miles
42.4 - 17.9 = 24.5
so, C
