Resolución de problemas mediante sistemas de ecuaciones.

plantear un problema, cuya expresión algebraica coincida para cada uno de los siguientes sistemas de ecuaciones, no debe resolver el sistema de ecuaciones.
a. x +y = 13 b. 3x - 30y = 15 c. 8x+3y=37 d. x-5y=4
x-y=1 2x + 10y = 40 8x-3y=50 3x+5y=32

rwkmrpowierkoifkpakei

Step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

what level of math? also i don't need to be paid if i can you.