<span>The density of helium is approximately 2 times the density of hydrogen.</span>
LOL, I should copy and past :)
The sum of angles for any triangle is always 180°, so in this case we can say:
x+3x+x+15=180 combine like terms on left side
5x+15=180 subtract 15 from both sides
5x=165 divide both sides by 5
x=33°
That of course is just x, the angles show specifically can be found by using that value of x for the others...
x, 3x, x+15 are 33°, 99°, 48° respectively
Answer:
41/6 lb
Step-by-step explanation:
Start with the original problem
5 11/6
1.) Learn the parts of the mixed number. In this case, 5 is a whole number, 11 is a numerator, and the 6 is the denominator.
2.) to turn a mixed number into an improper fraction or a whole number, multiply the denominator times the whole number (6 * 5 = 30) then add the numerator to the value you got (30 + 11 = 41)
3.) If the improper fraction can be simplified then you will most likely need to go ahead and simplify it. In this case, 6 doesn't factor into 41 so you would keep it as 41/6.
Answer:
x=3; y=1
Step-by-step explanation:
2x+3(x-2)=9
5x-6=9
5x=15
x=3
3-2=1=y
The right answer is Option E: 10 cars
Step-by-step explanation:
Given,
Length of railroad car = 6 inches
The length of railroad track = 5 feet
We will convert this length into inches.
1 feet = 12 inches
5 feet = 12*5 = 60 inches
Let,
x be the number of cars.
Number of cars * Length of each car = Length of track
Dividing both sides by 6
10 cars can fit on railroad track.
The right answer is Option E: 10 cars
Keywords: conversion, division
Learn more about conversion at:
#LearnwithBrainly