So,
"The sum of three times a number"
3n +
"and 12"
3n + 12
"is 20"
3n + 12 = 20
Subtract 12 from both sides.
3n = 8
Divide both sides by 3.
Answer:
81.64 meters
Step-by-step explanation:
The formula for circumference is C=2πr. In your case, you will use 3.14 instead of π. The diameter is 26m, which should be divided by 2 to get the radius.
26/2=13
Then, plug everything in the formula:
C=2×3.14×13
C=81.64m
Answer:
this is the answer for 4th question
and it is a collinear
Answer:
-4 x
Step-by-step explanation:
To solve this question we have to distribute 6 and 10. This is now our equation....
6x-10x
Now, we solve...
6x - 10x = -4 x...
Hope this Helps!!! :)
Let me know in the comments if I should change anything or if the answer was perfect!!!