Answer:
Option C, x = 35
Step-by-step explanation:
<u>If two angels are supplementary, they add up to 180</u>
<u />
<u>Step 1: Make an equation</u>
<em>3x + 15 + 60 = 180</em>
<em />
<u>Step 2: Solve for x</u>
3x + 15 + 60 = 180
3x + 75 - 75 = 180 - 75
3x / 3 = 105 / 3
<em>x = 35</em>
<em />
Answer: Option C, x = 35
Answer:
I'm not completely sure, but I believe it is $228.57
Step-by-step explanation:
sorry if it's wrong, have a nice day
we are given
where
price p( in dollars) of a new smartphone
t is the number of months since January
now, we can solve for t
step-1:
Add both sides by 4t^2
step-2:
Subtract both sides by p
step-3:
divide both sides by 4
step-4:
Take sqrt both sides
so, we get
..............Answer
Y + 7 = -1(x - 5)
y + 7 = -x + 5
y = -x - 2
Answer:
X = 1
Step-by-step explanation:
To solve the system of equation by susbtitution:
3x + y = 9
y = –4x + 10
We can follow the steps thus:
<em />
<em>Substitute the value of y in the first equation:</em>
As in the second equation y = -4x + 10 we can substitute in the first equation as follows:
3x + y = 9
3x + -4x + 10 = 9
<em>Combine like terms: </em>
3x + -4x + 10 = 9
Like therms are the therms with X (3x - 4x = -1x):
-1x + 10 = 9
<em>Apply the subtraction property of equality: </em>
-1x + 10 = 9
As 10 is suming, it passes to subtracting the 9:
-1x = 9 - 10
-1x = -1
<em>Apply the division property of equality:</em>
-1x = -1
Dividing in -1:
x = -1 / -1
<h3>X = 1</h3>