Answer:
-1,7
0,-3
1,-7
5,47
Step-by-step explanation:
-x-=+
Answer: 
Step-by-step explanation:
Given
The ratio of mixture of sand and cement is 5:3
If the total volume of mixture is 
Suppose there is 5x and 3x cubic centimeter of sand and cement respectively i.e.

Sand 
So, there is
of sand in the mixture
Answer:
1/8
Step-by-step explanation:
I looked it up lol
Answer: 3/10
Explanation: .3 is equal to three tenths
AngleA= angle D
5x+2=87
5x=85
X=17
180-87-42=51
Angle C= angle F
3y=51
Y=17