<span>17x − 8x + 2 = 9x + 2 ...............combine like terms
answer
</span><span>2 + 9x, because (17x − 8x) + 2 = 9x + 2 = 2 + 9x ............commutative property</span><span>
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Answer:
you need 100ml of 5X TAE and 400ml of water.
Step-by-step explanation:
You need to use a rule of three:
where:
and
Therefore:
Then just rest the TAE volume to the final Volume and you get the amount of water that you need to reduce the concentration.
It takes a while to see through this one.
I think that's because the triangle is in a weird position.
The arrows on the two across-lines tell us that those lines are parallel.
And THAT tells us that the two triangles are similar ... the whole big triangle,
and the smaller triangle on the bottom.
If two triangles are similar, then what ?
-- Their corresponding angles are equal. That doesn't help us in this problem.
-- Their corresponding sides are in the same ratio. That helps us a lot !
The left side of the big triangle = 5 + 8 = 13
The left side of the small triangle = 8
Now we know that corresponding sides of the two triangles
have the ratio of 13 to 8 .
The right side of the big triangle = 4 + x
The right side of the small triangle = x
The ratio has to be 13/8 , so ===> (4+x) / x = 13 / 8 .
That's the tough part. Now you take it and finish it off from here.
Answer:
1/6
Step-by-step explanation:
Answer:
m = -1
Step-by-step explanation:
3(m + 2) = -( 6- m) + 10
Distribute
3m +6 = -6+m +10
Combine like terms
3m+6 = m+4
Subtract m from each side
3m-m+6 = m+4-m
2m+6 = 4
Subtract 6 from each side
2m+6-6 = 4-6
2m = -2
Divide by 2
2m/2 = -2/2
m = -1