jessebrothers jessebrothers

02-05-2017
Mathematics

contestada

solve for x.

8x/7+9=30

a.) x= 18 3/8
b.) x= 24
c.) x= 34 1/8
d.) x= 44 4/7

Respuesta :

PHDFlopper PHDFlopper

02-05-2017

[tex] \frac{8x}{7} [/tex]+9=30
[tex] \frac{8x}{7} [/tex]=21 {subtract 9 from both sides}
8x=147 {multiply both sides by 7 to cancel out the division (fraction)}
x=18.375 {divide both sides by 8}
The answer is A) 18 3/8

Answer Link

Otras preguntas

how do i divide by zero

Can someone show me the steps to solve the problem?

simplify 12a-(4b+4a)-b

write a real-world solution that can be represented by the equation y = 7x be sure to explain what the variables represented in the solution

A car accelerates from 5.0 m/s to to 11 m/s at a rate of 3.0 m/s^2. How far does it travel while accelerating? 20m 117m 43m 16m

The functions q and r are defined as follows. q(x)= -2x+2 r(x)= x^2 - 1 Find the value of r(q(3)).

Covalent bonds are formed between metals and boiling points true or false

What is the most important issue facing healthcare industry? In a well- developed paragraph, describe the issue and discuss why you think it’s important.

A function is given: f(x)=3x+12 A. Determine the inverse of this function and name it g(x) B. Use composite functions to show that these functions are inverses.

In this excerpt from "Dover Beach" by Matthew Arnold, which two lines or sets of lines suggest that the speaker has undergone a loss of faith? The Sea of Faith