Subsitute 9 for y
9=y=9x-9
add 9 to both sides
9+9=9x+9-9
18=9x+0
18=9x
divide by 9
2=x
y=9
x=2
Answer: 450
Explanation: if you divide 180 by 2 then it = how many words he can type in one minute Wich is 90 so then you just multiply 90 by 5 and it gets you your answer.
Answer:
I thinks its 180 degrees conter clockwise
so one square thing is 90 degrees
and it goes 2 times
u welcome and good luck :)
1.
yes
x is number of group acts
y is number of indivual acts
2. I would eliminate x by multiplying 2nd equation by -3 then adding
12x+6y=120
<u>-12x-3y=-90 +
</u>0x+3y=30
3y=30
divide by 3
y=10
sub
4x+y=30
4x+10=30
4x=20
divide 4
x=5
each group act takes 5 mins and each individual takes 10 minutes
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The true statement is that minerals come from the ground as crystals. Hope this helps!
