Rebekahonfleek Rebekahonfleek

15-01-2018
Mathematics

contestada

What is the value of x in the equation below? Round to the nearest hundredths place.

[tex]0.45 (x +1.6) + 5x =18[/tex]

A. 3.01
B. 3.17
C. 36.44
D. 38.40

Respuesta :

Аноним Аноним

15-01-2018

0.45(x + 1.6) + 5x = 18
0.45x + 0.72 + 5x = 18
5.45x = 18 - 0.72 = 17.28
x = 17.28 / 5.45

x = 3.17 answer

Answer Link

asdfadfaeasdf asdfadfaeasdf

15-01-2018

0.45(x+1.6)+5x = 18

Expanding 0.45x+0.45*1.6+5x = 18

Regrouping 0.45x+5x = 18-0.45*1.6

So 5.45x = 18-0.72
x = 17.28/5.45 = 3.17

Ans is B

Answer Link

Otras preguntas

help me i forgot how to math

. How is a report used? What is Report Layout view?

What is the solution set of 4x^2+3=4x+2

Look at this calendar, read, and choose the right answer. Calendar of May with the 1st highlighted and text La Fiesta del Trabajo ¿Qué día es La Fiesta del Trab

What is the capacitance of a 1.0" diameter steel ball-bearing? A. 1.4 pF B. 14 pF C. 140 pF D. Zero, since there is only one conducting surface Capacitance is n

which of the following is an example of coculture

Who was Shoichi Yokoi and why did he remain hidden on Guam until 1972?

12. A useful tool illustrating the relationships among igneous, sedimentary, and metamorphis rocks is called the A. water cycle B. plate tectonic cycle C. relat

solve the quadratic equation: x^2 = -9

Write in slope intercept form 2x+3y=1470