The factors of the given expression are x , x - 2 and x - 4
So the expression for height and length are x and x - 4
Answer:
3/6, 2/6.
Step-by-step explanation:
The lowest common denominator of 2 and 3 is 6.
1/2 = 3/6 and 1/3 = 2/6
So this pair of fractions is 3/6, 2/6.
Would it be a ratio, if it is it would most practically be 10:40 and if in simplest form it would be 1:4 or just you photo math
Answer:
Yes, Shelby is correct.
Step-by-step explanation:
Basically, if you divide 63 by 9 you get 7, and if you divide 56 by 7 you get eight, so yah.
Let 'x' represent the volume of 6% saline solution
Let 'y' represent the volume of 8% saline solution
Form 2 equations.
Eq. 1: 20+x=y
Meaning 20 cm³ + x cm³=y cm³
Eq 2: 0.06x+0.1(20)=0.08y
Meaning: 6% of x + 10% of 20= 8% of y
Use substitution or elimination to solve this linear system. I used substitution.
Sub. Eq. 1 (20+x=y) into Eq. 2 (0.06x+0.1(20)=0.08y)
0.06x+ 0.1(20)=0.08(20+x)
0.06x+2+1.6=0.08x
-0.02x= -0.4
x=20
Substitute x=20 into equation 1 (you can also use 2 but in this case equation 1 is simpler)
20+x=y
20+20=y
40=y
To check, substitute x=20 and y=40 into equation 2
0.06x + 0.1(20)= 0.08y
0.06(20) +2 = 0.08(40)
1.2+2= 3.2
3.2=3.2
Therefore, Kim would need 20cm³ of 6% saline solution and 40cm³ of 10% saline solution to make 8% solution.