Answer:
1. They consist primarily of variables.
2. They are often called formulas.
4. They often describe real-world relationships.
Answer:
56
Step-by-step explanation:
Complete question:
Z varies jointly with x and y , x=2 and y=2, z=7. Find z when x=4 and y=8 using joint variation . (I need the problem worked out step by step)
If z varies jointly with x, and y, this is expressed as;
z = kxy
If z=7 when x= 2, y= 2
7 = k(2)(2)
7 = 4k
k = 7/4
To get z when x= 4 and y = 8
z = kxy
z =7/4 (4)(8)
z = 7*8
z = 56
Hence the value of z is 56
Try 18 and then multiply the sum of 2 and 18 to 7
Answer:
Uh can you please be more specific?
Answer:
C
Step-by-step explanation:
The Slope of 1 is 1.5
The Slope of 2 is 1
The y-intercept of 1 is 3.5
the y-intercept of 2 is 3.5
