Answer:
Step-by-step explanation:
<u>Cost of each item:</u>
- Pizza = $1.50, Hotdogs = $1.25
<u>Number of each item:</u>
- Pizza = x, Hotdogs = x + 20
<u>Total cost:</u>
- 1.25x + 1.5(x + 20) = 173
- 1.25x + 1.5x + 30 = 173
- 2.75x = 143
- x = 143/2.75
- x = 52
<u>Number of slices of pizza:</u>
Dr. Evans prescribed more. Dr. Hung prescribed less. 0.019 < 0.02
Answer:
y.
Step-by-step explanation:
When you reflect a point across the x-axis the sign of the y value changes. In the case of reflection across the y-axis the sign of the x value changes. So, for the point A(-2,-3.4) after the reflection the point B(2,-3.4) has the x value with different sign, so is a reflection over the y-axis.
I think B (Every fifth student from each grade)
A only talks about female students, C talks about students on a sports team which would be biased since the students on the sports team probably get more exercise, and d would be ok but not the best since some last names are more common and others you would get only a very small sample size.
