Answer: 2014
Step-by-step explanation:
LED: -25x + 6y = 20
CFL: 15x + 2y = 322
we need to find which year it was the same to know where LED lighting surpassed CFL lighting
-25x + 6y = 20
15x + 2y = 322 (-3)
-25x + 6y = 20
<u>-45x - 6y = -966 </u>
-70x = -946
x = 13.51
The nearest year would be 14 which is 2014
They're all simple.
150 = 25r
The r is multiplied for 25, so we should know what r equals to when it's not multiplied (1r).
So divide both terms for 25.
150/25 = 25r/25
6 = r
r = 6 <- answer
38 = 4p
Same thing here (divide both terms for 4)
38/4 = 4p/4
38/4 = p
p = 38/4 and simplify p = 19/2 <- answer
18 = a/20
We have a fraction, and we have to "delete" it.
There are two ways.
First one: multiply both terms for the denominator of the fraction.
18*20 = a/20 * 20
360 = a
a = 360 <- answer
Second way.
Take the two fractions to the common denominator (20) and do the LCM.
360/20 = a/20. Multiply both for 20
360 = a
a = 360
0 = 10x
0/10 = 10x/10
x = 0 <- answer
Equation 1) 3x + 3y = 12
Equation 2) x - 5y = 10
First step : 3(x - 5y = 10)
Well, we have to simplify this equation first. *Remember, this is the second equation.
Equation 1) 3x + 3y = 12
Equation 2) 3x - 14y = 30
Well, because both equation 1 & 2 have positive 3x in their equations, we must subtract the equations from one another in order to find the y value.
So, your answer is : C) Subtract the equations.
~Hope I helped!~
Answer:
10
Step-by-step explanation:
Use the Pythagorean theorem: a^2+b^2=c^2 to find the hypotenuse
a=6
b=8
6^2+8^2=c^2
36+64=c^2
100=c^2
10=c
Hope this helps! :)
The centimeters they could be five points but if you want to select all the measure of volume then group of the answer choices literally has to be put in your own words
