"Uma loja de roupas vende calças femininas e masculinas, onde as calças masculinas são vendidas a R$100,00 e as femininas a R$ 180,00. Sabe-se que em um determinado dia a soma das quantidades dos dois tipos de calças vendidas foi igual 125 e a soma do dobro de calças femininas com o triplo de calças masculinas foi 290." Quantas peças masculinas foram vendidas?

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation: