grant13 grant13
  • 22-05-2017
  • Mathematics
contestada

I need to know how to do this

I need to know how to do this class=

Respuesta :

Devn
Devn Devn
  • 22-05-2017
Hello, 

just add the two equations and make it equal to 180 and solve.. 

here, 15x + 4 + 10x + 1 = 180
now combine 15x and 10x to get 25x and 4and 1 to get 5

now we have 25x + 5 = 180 
subtract 5 from 180 to get 175
then divide by 25 to get 7

X = 7
hope it helped.

Answer Link

Otras preguntas

Given an array A[1 . . . n] of n distinct numbers (i.e., no two numbers of A are equal), design an O(n 2 ) time dynamic programming algorithm to find a longest
"Goods that are rival in consumption but not excludable would be considered a.common resources b. public goods. c. club goods. d. private goods."
Is Iran losing its languages? And what all languages in the world are dying in different places?
How do I solve this equation?.
Does less sleep increase injury?.
Why i an accurate meaurement and recording of Mohammad vital ign critical in thi cae
Simplify and show all work: √ + = − + 6
What is the primary responsibility of United States Attorneys?
the annualized percentage change in real gdp is 1%. what is the quarter-to-quarter percentage change in real gdp upon which this annualized rate was calculated?
What is the nature of business cycle?.