Answer:
x=5
Step-by-step explanation:
4x + 8 = 28,
it's rather straight forward,
you would subtract 8 from the left side,
doing the same on the right.
now you have
4x = 20
x= 20/4
x=5
hope this helps.
18 cm doing the same thing rn
Answer:
x = 3.75
Step-by-step explanation:
So, lets start with what we know.
Line = 180 degrees
Triangle = 180 degrees, a + b + c = 180
So, we can form the equations,
17x - 1 + <CDB = 180
-17x + 1 -17x + 1
<CDB = 181 - 17x
and
84 +7x + 5 + <CDB = 180
89 + 7x + <CDB = 180
-89 -89 + 7x
<CDB = 91 + 7x
Here, we are given 2 values of <CDB, but they must be the same, so let's substitute them into each other
181 - 17x = 91 + 7x
-91 +17x -91 +17x
90 = 24x
90 / 24 = 24x / 24
3.75 = x
x = 3.75
There, you have it, x is 3.75
If you have any questions, please let me know in the comments section of this answer! If you could mark this answer as the brainliest, I would greatly appreciate it!
Answer:
26 A =1690.48 in^2
27 B 10 2/15 hours
Step-by-step explanation:
26. The area of the mat is given by
A = l*w
where l = 74.8 and w = 22.6
A = 74.8 * 22.6
A =1690.48 in^2
27. The candle is 11 2/5 inches tall. It burns 1 1/8 inches per hour
We need to divide
11 2/5 ÷ 1 1/8
Changing to improper fractions
11 2/5 = (5*11+2)/5 = 57/5
1 1/8 = (8*1+1)/8 = 9/8
57/5 ÷9/8
Copy dot flip
57/5 * 8/9
456/45
Change back to a mixed number
45 goes into 456 10 times with 6 left over
10 6/45
10 2/15 hours
Answer: (3,-6)
Step-by-step explanation: Find the answer by finding the negative of the other number.
