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Yasmin is selling a disposable face mask for Php15 and a washable face mask for Php 30 each. How many of both masks does she need to sell to make at least Php 500? (Show the possible number of masks needed to sell using a graph.)​

Sagot :

BALABBOELIZABETHIN

Answer:

Step-by-step explanation:

let x = the number of masks that sell for 15 php each.

let y = the number of masks that sell for 30 php each.

the number of each type of mask would be equal to x + y.

the inequality for the number of each type of mask she needs to sell to get a revenue of more than 500 php is:

15x + 30y >= 500.

you would graph 15x + 30y = 500

any coordinate point of (x,y) that is on or above this line would result in revenue greater than 500.

any coordinate point of (x,y) that is below this line would result in revenue less than 500.

you would be looking for integer values of x and y, since yasmin can't sell parts of a mask.

the graph would look like this.

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