Question

3 senhoras foram a feira. dona nice gastou R$25,00 em 3 duzias de laranjas e 4 duzias de bananas, dona maria comprou 4 duzias de laranjas e 3 duzias de bananas, e neusa gastou R$20,00 em 5 duzias de bananas
POR FAVOR ME AJUDEM PRECISO DISSO PARA DIA 27

Answer 1

Answer:

Part 1) The price of each dozen of oranges is R$3.00 and the price of each dozen of bananas is R$4.00

Part 2) $R\ 24.00$

Step-by-step explanation:

The complete question in English is

3 ladies went to the fair. Ms. Nice spent R$25.00 on 3 dozen oranges and 4 dozen bananas, Ms. Maria bought 4 dozen oranges and 3 dozen bananas, and Ms Neusa spent R$20.00 on 5 dozen bananas.

Part 1) Find the price of each dozen of bananas and each dozen of oranges

Part 2) How much did Mrs. Maria spend?

Part 1) Find the price of each dozen of bananas and each dozen of oranges

Let

x ----> the price of each dozen of oranges

y ----> the price of each dozen of bananas

we know that

Ms. Nice

$3x+4y=25$ ----> equation A

Ms. Maria

$4x+3y$

Ms. Neusa

$5y=20$ ----> equation B

step 1

Find the value of y

Solve equation B

$5y=20$

Divide by 5 both sides

$y=R\ 4.00$

step 2

Substitute the value of y in the equation A

$3x+4(4.00)=25$

solve for x

$3x+16.00=25$

subtract 16 both sides

$3x=25-16.00\\3x=9.00$

divide by 3 both sides

$x=R\ 3.00$

therefore

The price of each dozen of oranges is R$3.00 and the price of each dozen of bananas is R$4.00

Part 2) How much did Mrs. Maria spend?

we know that

Ms. Maria

$4x+3y$

substitute the value of x and the value of y  in the expression above

$4(3.00)+3(4.00)=R\ 24.00$