After a trip, Mrs. Nalani took the students to the restaurant and told them they could order either a burger or a hot dog. If the number of students who ordered burgers was 30, twice the number of students who called for a hot dog, calculate the number of students at the restaurant.
If the 30 students who ordered burgers were twice the number of students who ordered hot dogs, then 30/2 = <<30/2=15>>15 students ordered hot dogs.
The total number of students is 15 + 30 = <<15+30=45>>45
#### 45
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
You are solving math problems. Here are some examples of how to solve the task:

The sum of the ages of three boys is 29. If two of the boys are the same age and the third boy is 11 years old, how old are the other two boys?The third boy is 11 so the sum of the ages of the first two is 29-11 = <<29-11=18>>18
The ages of the first two boys are equal so each of them is 18/2 = <<18/2=9>>9 years
#### 9[END]

A fifth-grade class went on a field trip to the zoo, and their class of 10 students merged with another class with the same amount of students. 5 parents offered to be a chaperone, and 2 of the teachers from both classes will be there too. When the school day was over, the students could choose to go home and 10 of them left. Two of the chaperones were parents in that group, so they left as well. How many individuals were left at the zoo?A total of 10*2=<<10*2=20>>20 students went on the field trip.
Some chaperones showed up, letting the group grow to 20+5=<<20+5=25>>25 individuals.
The teachers had to come as well, making the group as big as 25+2=<<25+2=27>>27 individuals.
When the school day ended, 27-10=<<27-10=17>>17 individuals were left.
A couple of chaperones followed suit, leaving 17-2=<<17-2=15>>15 people at the zoo.
#### 15[END]

Now, solve this next question in the style of the above examples:

After a trip, Mrs. Nalani took the students to the restaurant and told them they could order either a burger or a hot dog. If the number of students who ordered burgers was 30, twice the number of students who called for a hot dog, calculate the number of students at the restaurant.

### Response:
If the 30 students who ordered burgers were twice the number of students who ordered hot dogs, then 30/2 = <<30/2=15>>15 students ordered hot dogs.
The total number of students is 15 + 30 = <<15+30=45>>45
#### 45