Answer:
Step-by-step explanation:
3(a+3)-6=21
<=>3a+9-6=21
<=>3a+3=21
<=>3a=18
<=>a=6
Answer:
dont you have the answer beside it? Or is that an x?
Step-by-step explanation:
He should pay 22.6$ because 13% of 20 is 2.6 which you get by multiplying 20 by .13 and then add it to the original 20$
The value of b is 12.5 and the value of YZ is 100
<h3>How to determine the variable and yz?</h3>
The given parameters are:
XY = 6b
YZ = 8b
XZ = 175
This means that
XZ = XY + YZ
So, we have:
6b + 8b = 175
Evaluate the sum
14b = 175
Divide by 14
b = 12.5
Substitute b = 12.5 in YZ = 8b
YZ = 8 * 12.5
Evaluate
YZ = 100
Hence, the value of b is 12.5 and the value of YZ is 100
Read more about lengths at:
brainly.com/question/24571594
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Answer:
<em><u>x = 30</u></em>
Step-by-step explanation:
2x + x = 90
3x = 90
x = 90/3
x=30
