Answer:
25 students
Step-by-step explanation:
To solve this problem, use cross multiplication:
3x = 75
x = 25
There are a total of 25 students in the class.
Answer:
<h2>
3</h2>
Step-by-step explanation:
Any polynomial can only have as many zeros as is the highest exponent at x.
A cubic polynomial it's: ax³+bx²+cx+d. The highest exponent at x is 3 so it is the largest number of its zeros.
Answer:
If Mary earns 7$ an hour, we need to multiplicate 7$ by the number of hours worked for the entire week so we can get the salary per week.
Step-by-step explanation:
it's correct
80:2
80 divided by 2 ... which gets you 40. About 40 miles an hour.
Your ratio: 80:2
You can take it apart. There are a top and bottom (both the same) right triangle. So you can find the area of that by multiplying 8*6 and divide by two. Then multiply by two because there are 2 triangles.
You are left with three rectangular sides: One 10x10, one 10x6, and one 10x8.
So your whole equation looks like this: A = 2[(8*6)/2]+(10*10)+(10*6)+(10*8)
