An alloy is a metal made by combining two or more metallic elements. You mix an alloy that contains 14% copper with an alloy that contains 24% copper to make 100 pounds of an alloy that is 18% copper. How many pounds of the 14% alloy was used? A.6 pounds
B.16 pounds
C.40 pounds
D.60 pounds

77

step-by-step explanation:

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough

14 x 10 5

step-by-step explanation:

10 5 = 100,000

14x10,000 = 140,000