Answer:
49
Step-by-step explanation:
4x+2x=180
6x= 180
Divide by 6
X= 30
Answer:
c=6
Step-by-step explanation:
c+25-19=100
isolate variable...
c+25-19+19=100+19
c+25=119
c+25-25=119-25
c=6
Get it to equal 0
minus 17x from both sides
2x²-17x+35=0
tricky part
get something like
(2x-a)(x-b)
we know the signs are negative since the middle term is negative and last term is positive
so a and b are either 1 and 35 or 5 and 7
(2x-1)(x-35), nope
(2x-35)(x-1) nope
(2x-5)(x-7), nope
(2x-7)(x-5), yep
(2x-7)(x-5)=0
set to zero
2x-7=0
2x=7
x=7/2
x-5=0
x=5
x=7/2 and 5
Answer: D
Step-by-step explanation:
Because the Midrange data set shown is 55
