So permiter=masure of all sides added together
so sides are(3x+2), (2x+5), and (4x)
so (3x+2)+(2x+5)+(4x)
use associative property
a+(b+c)=(a+b)+c so
(3x+2)+(2x+5)+(4x)=3x+2+2x+5+4x
group like terms becasue can move numbers around
(3x+2x+4x)+(2+5)
add like terms
(9x)+(7)
9x+7
he will use 9x+7=perimiter
Answer:
Number of CDs in Walter's collection = x = 36
Step-by-step explanation:
x denotes number of CDs in Walter's collection.
Also, the number of CDs in Brian's collection is 3 times the number in Walter's collection.
Number of CDs in Brian's collection
Total number of CDs in both Walter's collection and Brian's collection = 144
So,
Number of CDs in Walter's collection = x = 36
How many cases does he hear if he hears 5 cases every 2 3/5 what?
Days?
Weeks?
Months?
Years?
Answer:
Answer is y=17x+10
Step-by-step explanation:
The line has a slope of 17. Its y intercept is 10.
So we can conlcude that the equation is y=17x+10
(y=mx+b) Where M= slope B= y intercept
Solving these is quite simple; think of "a number" as a value of either n or x (depending on personal preference) then just find the operations being done based on key words;
1. Sum= addition so it is x+5
2. Decrease= subtraction so it is 11-n
3. Quotient= division so it is -9/y
4. Twice= multiply by two, minus= subtract, so it is 2n-13