Translate the phrase into a math expression. twenty divided by the sum of 4 and 1.

20 ÷ (4+1)

Step-by-step explanation:

Hi, to write the math expression we have to analyze each part of the phrase.

So:

Twenty (the number 20)  

Divided (÷)  

By the sum of 4 and 1:  (4+1)

In conclusion, the math expression is: 20 ÷ (4+1)

If we continue and solve the expression:

20 ÷ (4+1)

20 ÷ 5 = 4

Feel free to ask for more if it´s necessary or if you did not understand something.

x = 12

y = 15

step-by-step explanation:

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50