Answer:
3 or 3/1 (the 1 is the denominator)
Step-by-step explanation:
the shape got 3 times bigger. let me know
The answer is 1.5 I think
Note that the whole number 1 = 20/20
As 20/20 = 1
There are 4 whole numbers. multiply the numerator by 4
(20/20) x (4/1) = 80/20
Next, add the improper fraction gotten to the fraction given, 12/20
80/20 + 12/20 = 92/20
92/20 is your improper fraction, or 23/5 (simplified)
hope this helps
Answer:
Rocío respondió 43 preguntas correctas y 17 incorrectas.
Step-by-step explanation:
Dado que en las olimpiadas de Matemática, Rocío representó a su colegio, y la prueba consistía en 60 problemas, de los cuales cada respuesta correcta valía 4 puntos y por cada respuesta incorrecta había un punto en contra, y luego del examen, Rocío obtuvo un puntaje de 155, y ella respondió todas las preguntas y desea saber cuantas fueron correctas y cuantas incorrectas, para determinar dicha duda se debe realizar el siguiente calculo:
60 x 4 = 240
40 x 4 - 20 = 140
45 x 4 - 15 = 165
42 x 4 - 18 = 150
43 x 4 - 17 = 155
Por lo tanto, Rocío respondió 43 preguntas correctas y 17 incorrectas.
Answer: We know that an "exponential growth" is that where a function start growing slowly and after start increasing more quickly.
a "logarithmic growth" is the opposite of this, at first you will see a quick increase, that after some time gets slower.
But in this case we are searching for decays: The decays are the opposite of the growths, an "logarithmic decay" starts slow and gets faster latter, and an "exponential decay" decreases very quickly at first, and latter more slowly.
Then, the model for the temperature of the hot tea over the time is a "exponential decay", this is a function of the form T(x) = T₀, where T₀ is the initial temperature, t is the time, and k is a constant number.