Answer:
21kg
Step-by-step explanation:
We will do this.
11x - 12 = 7x
11x - 4x = 7x
4x = 12
4x/4 = 12/4
x = 3
3 x 7 = 21
Laura weighs 21 kg.
Answer: 72
Step-by-step explanation:
First plug in 7 for x
5(14)
Then multiply
70
Next plug 2 in for y
2(1)
Multiply
2
Lastly, add 70 and 2 together.
72.
Hope this helps.
<span>Peter paid </span>84 cent in taxs
Add the equations.
x-y%2B0.5x%2By=7%2B5
1.5x=12
highlight%28x=8%29
Now use either equation to solve for y.
8-y=7
highlight%28y=1%29
x=8
y=1
The answer would be 226.2442.