Perimeter= 2(length+width)
60= 2(l+w)
l=2w
Substitution method
60= 2(2w+w)
60= 2(3w)
30= 3w
10= w
Plug the value of w in.
l= 2(10)
l=20
Final answer: Length= 20, width=10
Answer:
c = +5 or c= -5, both are possible
Step-by-step explanation:
3^2 = 9
4^2 = 16
c^2 = 25
c = + or - sqrt(25)
c = + 5 or -5
X = 0.89
x = -0.89
two solutions
Answer: 20 : 3 : 12
Step-by-step explanation:
For every 1 litre, 150 ml of sucrose and 600ml of saline solution is needed.
1litre = 1,000 ml
Water = 1,000 ml
Ratio:
1,000 : 150 : 600
Divide by 50 to get simplest form:
20 : 3 : 12
Answer: -2
Step-by-step explanation: from the equation, -4m +6 = 14, you subtract 6 from both sides and get -4m=8, and the last step is to divide both sides by -4 and you get m=-2.
