Answer:
-2/3
Step-by-step explanation:
We need a negative fraction
The numerator has to be smaller than the denominator to be between 0 and -1
Would it be 50 since they look the same size & 43+7=50 & 50-7=43
Well if the alloy makes the 1000 grams, but you are dealing with copper that isn't even 100% copper, than you either need 55% more copper, which isn't given, which means you really need 550 grams of alloy copper.
Letters
If ABC is congruent to DEF
Then angle A = angle D
angle B = angle E
angle C = angle F
Sides:
AB = DE
BC = EF
AC = DF