Adress shop sold 150 dresses on sunday with sales receipts of $1. the plain dresses were sold for fifty dollar each while the dyed dresses were sold for seventy dollar each. how many of each type of dresses were sold?

plain dresses = 25

dyed dresses =125

Step-by-step explanation:

number of plain dresses - x

number of dyed dresses - y

X + Y = 150 (1)

50X + 70Y = 10000 (2)

(2)/50

X + 7/5 Y = 200 (3)

(3) - (1)

0 + 7/5Y - Y = 50

2Y = 250

Y = 125

; X = 25

Plain dresses =25, and dyed dresses= 125

Step-by-step explanation:

Let P rep the plain dresses, and D, the dyed ones,

P+D=150 (i)

50P+ 70D= 10000(ii)

Using equation i

P=150-D

Replace P in Equation ii

50(150-D)+ 70D =10000

7500-50P+70D=10000

20D= 2500

D= 125

Therefore; P=150-125= 25

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points