Answer:
Janet has coins worth 252.5, 101, and 50.5.
Step-by-step explanation:
Let us call the three coins , and .
The first coin is 5 times another coin<em> (let's say </em>); therefore,
,
and the third coin is 2 times the value of another coin<em> (it's coin </em><em>):</em>
<em /><em>.</em>
The total worth of all coins is 404; therefore,
or
with the value of in hand, we find and :
and for
Thus, Janet has 3 coins worth 252.5, 101, and 50.5.
Answer:
29.5
Step-by-step explanation:
14sq + 26sq = 872
sq root of 872 is 29.5
Answer:
Step-by-step explanation:
Y=2x-7, y=5x+4 goes in one solution
Y=-2x+3, y=2x-1 goes in one solution
Y=5x+4,y=5x-2 goes in no solution
Y=-2x+3,y=1/2x-7 goes in one solution
3y=-12+6,y=-4x+2 goes in infinitely many solutions
1/2 + 1/4 + 2/5
=(2+1)/4 + 2/5
=3/4 +2/5
=(3*5+2*4)/4*5
=(15+8)/20
=23/20