PROBLEMAS CON SISTEMAS DE ECUACIONES

- La diferencia de dos números es 3 y si el doble del numero menor se suma con el mayor, la suma es 15. Hallar los números.

- Con $24 se puede comprar 10 libras de azúcar y 10 de frijol y con $9 se puede comprar 5 libras de azúcar y 3 libras de frijol. ¿Cuanto cuesta la libra de azúcar y frijol?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

What else equals 42 and 30 for multiply