40*1.8 = 72
72+ 42 = 104 °F
the equation is F = c*1.8 + 32
Answer:
Only one solution
Step-by-step explanation:
p=12
Solution below:
subtract p on both sides
9=p-3
add 3 on both sides
p=12
waist = 32
hips 40
ratio = 32/40 which reduces to 4/5
X = 4 , y = -1
Explanation:
solve by elimination ie eliminate x or y from the equations by performing operations on them.
first label the equations , to follow the process.
x - y = 5 ----------------(1)
x+ y = 3 ----------------(2)
If (1) and (2) are added then y will be eliminated.
(1) + (2) gives : 2x = 8 → x = 4
now substitute this value of x into either of the 2 equations and solve for y.
let x = 4 in (1) : 4 - y = 5 → -y = 1 → y = -1
check in (1) : 4-(-1) = 4+1 = 5
check in(2) : 4 - 1 = 3