How do u want it answered
A caterer's total cost for catering a party includes a fixed cost, which is the same for every party. In addition the caterer charges a certain amount for each guest. If it costs $300 to serve 25 guests and $420 to serve 40 guests, find the cost per guest. Write a system of equations for the situation and solve using inverse matrices.
Answer:
Step-by-step explanation:
The first step is to distribute.
2(2x) 2(5)
this will give you 4x and 10.
4x +10 +6=20
then, you add 10 and 6, which will give you 16
4x +16=20
next, you subtract 16 on both sides, which will leave you with 4x =4
x=1
The seven is in the thenths
This is a part:part ratio. to answer the question, we need to change it into a part:whole ratio. to do this we add up the parts to equal 7. so the ratio of girls to students is 3:7. divide 238 (whole) by 7 (whole) to equal 34. now we multiply 34 by 3 for girls and by 4 for boys. girls: 102; boys: 136.
