Question

read each problem carefully and sold as required and answer the questions that ffollow​

Answer 1

Answer:

answer for the given problem is given

Step-by-step explanation:

1)5x+y=180 and 4x+y=155

2)Elimination method

3)small bottle holds 25 ounces and the large bottle holds 55 ounces

4) Yes,

according to given two days she drank 180 ounces and 155 ounces.

So Melba balances her daily drinking water enoughly.

Answer 2

Answer:

Answer :- 1.

$\bf\implies \:5x + y = 180.....(1)$

$\bf\implies \:4x + y = 155.......(2)$

where,

x is the quantity of water in small bottle

y is the quantity of water in large bottle

Answer :- 2.

There are 4 methods to solve linear equations

1. Substitution Method
2. Elimination Method
3. Cross Multiplication Method
4. Graphical Method

We prefer Substitution Method

• The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

Answer : -3.

Small bottle hold 25 ounces of water and Large bottle hold 55 ounces of water.

Answer:- 4

The Institute of Medicine (IOM) recommends that men drink at least 101 ounces of water per day, and women should drink at least 74 ounces.

• So, it means she drank enough water.

Step-by-step explanation:

Let amount of water in small bottle be 'x' ounces and amount of water in large bottle be 'y' ounces.

Case :- 1.

Melba drank 5 small bottles of water and 1 large bottle for a total of 180 ounces.

$\bf\implies \:5x + y = 180.....(1)$

Case :- 2.

Melba drank 4 small bottles of water and 1 large bottle for a total of 155 ounces.

$\bf\implies \:4x + y = 155.......(2)$

Subtracting equation (2) from equation (1), we get

$\bf \:5x + y - (4x + y) = 180 - 155$

$\bf\implies \:5x + y - 4x - y = 25$

$\bf\implies \:x = 25$

Put x = 25, in equation (2) we get

$\bf\implies \:4 \times 25 + y = 155$

$\bf\implies \:100 + y = 155$

$\bf\implies \:y = 55$

So, it means Small bottle hold 25 ounces of water and Large bottle hold 55 ounces of water.

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