7x2+3[81-(4x6)] Simplify
2 answers:
You might be interested in
Answer:
1.8 x
Step-by-step explanation:
( 9 x 10²) (2 x )
= (9)(2) x
=18 x
= 1.8 x
Answer:
Step-by-step explanation:
<u>Given information</u>
Point B = (-2, -4)
Reflection line: y = x
<u>Concept:</u>
When reflecting over the line y = x, the position of y and x in the original coordinate switches places.
This is because it is " y = x ", assuming that they could interchange
<u>Find the coordinate of Point B'</u>
Original (x, y) = (-2, -4)
Point B' = (x', y') = (y, x) =
<em>Please refer to the attachment below for a graphical understanding</em>
Hope this helps!! :)
Please let me know if you have any questions
so hmm notice, we use the decimal format for the percent, namely 15% is just 15/100 and 5% is just 5/100 and so on
whatever the amounts of "x" and "y" are, they must add up to 100 grams
thus x + y = 100
and whatever the concentrated amounts are, they'll add up to (100)(0.15)
thus
solve for "x", to see how much 5% alloy will be needed
what about "y"? well y = 100 -x