X+y=156
<span>0.05x+0.25y=21.6
-1/4*/ x+y=156
1/20x+1/4y=216/10
-1/4x-1/4y=156*-1/4=-39
</span>1/20x+1/4y=216/10
<span>+--------------------------
-4/20x=-17,4
x=87
</span>x+y=156
<span>
87+y=156 y=69
this question answer is </span><span>87 nickels and 69 quarters</span><span>
</span>
Answer:
4.5=9+8=10 cause we subbed
8+9=17
Step-by-step explanation:
Answer:
m=6/7
Step-by-step explanation:
If you graph both of these points and use the rise over run method getting 6/7 as your slope or m.
Answer:
D. 804.2
Step-by-step explanation:
The area equation is πr^2 so
16^2 = 256
256 × π (or 3.14) = 803.84
which is ≈ 804.2
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Because the triangles are similar, corresponding sides have the same ratio.
.. AB/DE = BC/EC = AC/DC
.. 24/18 = 8/y = (15 +x)/15
Then we can solve for x and y.
.. x = 15*(24/18) -15 = 5
.. y = 8*(18/24) = 6
