<span>2x + y - 10 = 0
x - y - 4 = 0
------------add
3x - 14 =0
3x = 14
x = 14/3
</span>x - y - 4 = 0
14/3 - y - 4 = 0
y = 14/3 - 4
y = 4 2/3 - 4
y = 2/3
answer
y = 2/3
hope it helps
1/2 of the books are science books because once you convert the other two books you get 2/6 +1/6= 1/2 so the science books will be the other half.
Answer:
l = A/aw
Step-by-step explanation:
Since we want the equation in terms of l, we simply isolate the l by dividing both sides by aw:
A = law
A/aw = law/aw
A/aw = l
To decrease 64 by 60%
Working Out:
60%/100% = 0.6
0.6 x 64 = 38.4
Therefore to decrease by 60%
64 - 38.4 = 25.6
:)