Answer: B. $3.15
Step-by-step explanation: Hi! So first things you want to add all the things he bought together and then subtract it from the $20. I’m sorry if this isn’t right.
The answer is 7.3, If you use the order of operations, When you divide 58.4 by 8 you get 7.3
We are given that there are a total of 78 students. If we set the following variables:
Then, the sum of all of these must be 78, that is:
Since there are 15 in chemistry and physics and 47 in chemistry, we may replace that into the equation and we get:
Simplifying:
Now we solve for P by subtracting 62 on both sides:
Therefore, there are 16 students in physics
Answer: I think the answer is 34.. sorry if I’m wrong
Step-by-step explanation:
Answer:
square base pyramid
triangle base pyramid
Step-by-step explanation:
second one is square bas pyramid
third one is triangle base pyramid