Answer:
She catered for 40 people.
Step-by-step explanation:
According to the information given, you can write an equation that indicates that 30 people multiply for its cost that is $10 plus the number of people after 30 for its cost that is $9 is equal to $390. According to this, the equation is:
10(30)+9x= 390, where
x= number of people after 30
Then, you can solve for x:
300+9x= 390
9x=390-300
9x= 90
x=90/9
x=10
The answer is that she catered for 40 people, 30 people at a cost of $10 and 10 people for a cost of $9.
Answer:
The answer is 70.8
Step-by-step explanation:
You do 7x3 times 2 and then 3x2.6 and then 7x3 again. You add them all up and get 70.8
21 + 21 + 3.9 + 3.9 + 21 = 70.8
Find the difference between the two prices:
617.40 - 420 = 197.40
Now divide the difference by the wholesale price:
197.40 / 420 = 0.47 = 47% markup.
Answer
Suzy bought x pencils for $3.00. If she bought two pencils, how much did the both cost together?
Step-by-step explanation:
