Answer:
y=3,x=1.3,z=6.2 :)
Step-by-step explanation:
y=3,x=1.3,z=6.2 :)
So, we have:
: x+y+z=10 [equation 1]
: 5x+3y=14 [equation 2]
: x−2y+z=2.5 [equation3]
(I'm going to assume that you know how to solve equations with 2 variables)
1. eliminate a variable to get 2 variables
Let's reverse equation 2:
-x+2y-z= -2.5
and take equation 1, to try to eliminate "z"
x+y+z=10
add up the 2 equations to get:
3y=7.5
and solve to get
y=2.5
2. substitute what we already solved into another equation
Luckily, equation 2 only has 2 variables, and one is y, so we can sub it in.
5x+3y=14 --> 3x+3(7.5)=14
solve to get
x=1.3
3. Substitute both of our variables in to get the final variable: z
Let's take the first equation.
x+y+z=10 --> 1.3+2.5+z=10
solve to get
z=6.2
I hope this helps you!
Answer:
The length would be 31.5ft and the width would be 26.5ft
Step-by-step explanation:
For the purpose of this, we'll set the width as x. We can then define the length as x + 5 since we know it is 5 ft longer than the width. Now we can use those along with the perimeter formula to solve for the width.
P = 2l + 2w
116 = 2(x + 5) + 2(x)
116 = 2x + 10 + 2x
116 = 4x + 10
106 = 4x
26.5 = x
Now since we know that the width is 26.5ft, we can add 5ft to it to get the length, which would be 31.5ft.
- volume without <span>pots and pans
- volume with </span>pots and pans
- volume of pots and pans
Answer:
Connie must sell 4 large cups.
c = 0.25 per/cup
C = 0.75 per/cup
c × 20 = $5
C × 5 = 3.75 ≈ 4
C × 4 = $3
Product of "c" + Product of "C" = $8.00