Mathematically written:
3 * x + 7 = 25
3x + 7 = 25
3x = 25 - 7
3x = 18
x = 18 / 3
x = 6
Proof:
3 * 6 + 7 = 25
18 + 7 = 25
25 = 25 → both sides of the equation are equal, our answer is correct
Notes:
A number - Is an unknown number, called a variable, which in this case is substituted by the letter x.
Hope it helped,
BioTeacher101
Answer:
y=22/45
Step-by-step explanation:
y=3/5-1/9
y=(27-5)/45
y=22/45
Step-by-step explanation:
<em>x</em><em> </em><em>=</em><em> </em><em>5</em><em>1</em><em>.</em><em>5</em>
<em>I'm </em><em>am </em><em>not </em><em>sure </em><em>about</em><em> </em><em>it </em><em>since </em><em>in </em><em>the</em><em> </em><em>case </em><em>it </em><em>is </em><em>not </em><em>g</em><em>iven </em><em>that </em><em>how </em><em>much </em><em>miles </em><em>he </em><em>walk </em><em>in </em><em>total </em><em>so.</em>
<em>I </em><em>just </em><em>added </em><em>the </em><em>no.</em><em> </em><em>of </em><em>miles </em><em>he </em><em>walk </em><em>in </em><em>part </em><em>A </em><em>and </em><em>B </em><em>so </em><em>I </em><em>got </em><em>x </em><em>=</em><em> </em><em>5</em><em>1</em><em>.</em><em>5</em>
<em><u>hope </u></em><em><u>this </u></em><em><u>answer </u></em><em><u>helps </u></em><em><u>you </u></em><em><u>dear.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>take </u></em><em><u>care </u></em><em><u>and </u></em><em><u>stay </u></em><em><u>safe!</u></em>
Answer:

Step-by-step explanation:
we know that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
step 1
Find the slope of the given line
we have

isolate the variable y


the slope of the given line is

step 2
Find the slope
of the perpendicular line to the given line

---> slope of the given line


therefore
The value of m is

47-12 1/3= 34 2/3 so the answer is 34 2/3 yards of fabric