Hi there!
2(4z - 9 - 7) = 166 - 46
let's make this a little more simpler...
2(4z - 16) = 120
use distributive property.
multiply 2 and 4z , 2 and -16.
8z - 32 = 120
add 32 on both sides to isolate the variable
8z = 152
divide both sides by 8...
z = 19
So your answer is A. 19
Hope this helped!! :)
I got 110 because 35+35=70 and 180-70=110. I added 35 to 35 because it says that AB=AD, so they should make congruent angles. So add the 35+35 and work from there.
26
thursday 138 (46 x 63 / 21 = 138)
friday 99 (33 x 63 / 21 = 99)
27.
100% - 80% = 20%
20% = 0.2
150 * 0.2 = 30
answer: 30 students chose math
Step-by-step explanation:
N:2 = 15:5
N\2 = 15\ 5
Now cross multiply,
5N = 30
N = 6