Jonathan has been on a diet since January 2013. So far, he has been losing weight at a steady rate. Based on monthly weigh-ins, his weight, w, can be modeled by the function w=-3m+205 where m is the number of months after January 2013

a) How much did Jonathan weigh at the start of the diet?

b) How much weight has Jonathan been losing each month?

c) How many month did it take Jonathan to lose 45 pounds?

Show work plz

Question

04-05-2014
Mathematics

contestada

Jonathan has been on a diet since January 2013. So far, he has been losing weight at a steady rate. Based on monthly weigh-ins, his weight, w, can be modeled by the function w=-3m+205 where m is the number of months after January 2013

a) How much did Jonathan weigh at the start of the diet?

b) How much weight has Jonathan been losing each month?

c) How many month did it take Jonathan to lose 45 pounds?

Show work plz

Respuesta :

Otras preguntas

managing the space ahead and controlling your speed will________ your vehicle's furl efficiently. impove, decrease, maintain

Evaluate the following | -8 | = |15| =

(3) कथालेखन : (80 ते 90 शब्द) पुढील मुद्दे लक्षात घेऊन समर्पक कथा थोडक्यात लिहा : गरीब मुलगा मिठाईच्या दुकानापुढे मिठाईवाला वासाची किंमत मागतो चाणाक्ष वकील ऐकत

1. Find SP when: (a) CP=920 and gain = 6% EXE

How many 1/2 cm cubes fit inside a prism

How can financial literacy affect the bargaining skills

In public speaking, sound ethical decisions involve weighing a potential course of action against the persuasive goals of the speaker. an interpretation of the

write a letter to louis XVI persuading him to take a certain action before the country turns to revolution

If the difference of p(x)=ax^4/5 + x^3/3 -2x^2/5 + bx/7 -1 and q(x)= x^4/5 + x^3/4 -1/3 x^2 +1/2 x + 3 is h(x) =1/5 x^4 + 1/12 x^3 - 1/15 x^2 + 5/14 x - C then

Derik bought a dartboard with a diameter of 20 inches. Find the area of the dartboard in square inches

kate200468 kate200468 · Answer 1 · 2014-05-04T20:30:52+02:00

[tex]a)\ \ \ w(m)=-3m+205\\\\m=0\ \ \ - at\ the\ start\ of\ the\ diet\\ \\w(0)=-3\cdot0+205=205\\ \\Ans.\ weigh\ at\ the\ start\ of\ the\ diet\ is\ 205\ pounds\\ \\b)\ \ \ w(m+1)=-3(m+1)+2015=-3m-3+205=-3m+202\\ \\w(m+1)-w(m)=-3m+202-(-3m+205)=\\ \\=-3m+202+3m-205=-3\\ \\Ans.\ Jonathan\ has\ each\ month\ 3\ been\ losing \\ \\ w(m)=205-45=160\ \ \ \Rightarrow\ \ \ -3m+205=160\ \ \ \Rightarrow\ \ \-3m=-45\\ \\m=15\\ \\Ans.\ 15\ month[/tex]