He would need a total of 46 yard of lights
Hello,
y=x+2==>x-y=-2 (1)
6x-4y=-10==>3x-2y=-5 (2)
-2*(1)+(2)==>x=4-5==>x=-1
(1)==>y=-1+2=1
sol ={(-1,1)}
2/3(x+6)
2/3*x=2/3 6*2/3=4
Hope this helps :)
Answer:
81 boys
Step-by-step explanation:
There are two ways to figure this out. Both ways are correct.
1. Fractions
9/7=x/63
from here you cross multiply
7x=9×63
7x=567
now to get x by itself you divide by 7
x=567÷7
x=81
2. If you have 63 girls and 7 girls to each group. You can divide 63 by 7 and find out how many groups you have which is 9. 9 groups, 7 girls each. For every 7 girls there are 9 boys. 9×9 ( 9 groups, 9 boys each)
9×9=81
Answer:
6
Step-by-step explanation:
13 + (-12) - (-5)
13 - 12 + 5
1 + 5 = 6
