Step-by-step explanation:
3х + 2y = 14
3х - 2y = 10
6x=24
x=4
3×4+2y=14
12+2y=14
2y=14-12
2y=2
y=1
Answer:
$240
Step-by-step explanation:
In June she had $20
in August she had 12x20= 240
15.Here
Let the length of square be l(length)
Perimeter of square = 4l
48cm= 4l
48/4= l
12=l
This,l=12 cm
Answer:
4.50
Step-by-step explanation:
i hope i got it correct i'm in middle school