Answer:
-(33+110z)/10z
Step-by-step explanation:
(-7/2z +4)+(1/5z -15)
from BODMAS, solving the one in the bracket
First(-7/2z +4)+(1/5z -15)
Find the Lcm
[-7/2z +4] +[1/5z -15]
(7+8z)/2z +(1-75z)/5z
find the Lcm which is 10z
[5(-7+8z) + 2(1-75z)]/10z
[(-35+40z)+(2-150z)]10z
(-35+2+40z-150z)/10z
(-33-110z)/10z
-(33+110z)/10z
Simplify the numerator and denominator first:
5/8 + 3/4 = 11/8
-2/3 - 5/6 = -3/2
Now you have 11/8 / -3/2
When dividing two fractions change division to multiplication and flip the second fraction over:
11/8 x -2/3 = 11 x -2 / 8 x 3 = -22/24
-22/24 reduces to -11/12
The answer is -11/12
It does not represent a function
Answer:
21 glasses of water.
Step-by-step explanation:
You can do a proportion.
or
1 glass/1/6 of a bottle.
x glasses/3.5 bottles.
You can cross multiply.
1/6 times x is 1/6x
1 times 3.5 is 3.5/
1/6x=3.5.
do the reciprocal of 1/6 which is 6.
So, 6 times 3.5 is 21.
Therefore, you have 21 glasses of water.
