Answer:
667 students are in math class
Step-by-step explanation:
Step 1: Find the total number of parts Looking at the ratio 4:9, we have: 4 + 5 = 9 So, we have 9 parts in total.
First divide by 9
1500/9=166.666667
now multiply by 4
666.666667
now round up
667
Answer:
The expression is


Step-by-step explanation:
we know that
The equation of a exponential growth function is equal to

where
y is the population
x is the number of years
r is the rate of change
a is the initial value or y-intercept
we have

substitute the given values


For x=5 years
substitute in the exponential equation


Answer:
what i dont understand
Step-by-step explanation:
Answer:
The answer is 3.1

If we were to convert it into a **FRACTION** the answer would be : 31/10.
And that i an improper fraction, but as a **MIXED NUMBER** : 
All answers would be : 3.1 , 31/10 and 3 1/10
It took them 4 days until they arrived at their destination.
314 × 4 = 1256
Another way of solving it:
Total amount of miles ÷ miles per day = The amount of days.
1256 ÷ 314 = 4