Mr. sanchez’s class sold fruit pies for $1.32 each and mr. kelly’s class sold bottles of fruit juice for $1.77 each. together, the classes sold 90 items and earned $140.40 for their school.

(a) write and solve a system of equations that model the problem. show all your work.
(b) which class earned more money?
(c) how much more money did that class earn?

Part a)

The quantity of fruit pies sold was

The quantity of juice bottles sold was

Part b) Mr. Kelly’s class earned more money

part c)

Step-by-step explanation:

Part a)

Let

x-----> quantity of fruit pies sold

y----> quantity of juice bottles sold

we know that

-----> equation A

----> equation B

substitute equation A in equation B

bottles of fruit juice

Find the value of x

------> fruit pies

Part b) Which class earned more money?

Mr. Sanchez’s class

Mr. Kelly’s class

therefore

Mr. Kelly’s class earned more money

Part c) How much more money did that class earn?

Find the difference

how is that middle school

step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2