Answer -8 ,6
Step-by-step explanation:
Answer:
C:
1/64
Step-by-step explanation:
425=25x-10x-250
675=15x
x=45
45 calculators were sold.
Answer:
heyy matee...
going according to given parameters
let 2 numbers be x and y
so atq =>
3x + y = 142 => y = 142 - 3x
and 4x - y = 148
4x - ( 142 - 3x ) = 138
4x - 142 + 3x = 138
7x = 280
x = 40
now y = 142 - 3(40) = 142 - 120 = 22
so x = 40 and y = 22
You subtract x from both sides and add a to both sides.
You would then be left with y/z = b + a - x
Then multiply both sides by z and you get y = z(b+a-x)
Or y = bz + az + xz