You can say
x+y=5
x=5-y
You know the value of x, put it into the next equation.
3(5-y)-7y=19
15-3y-7y=19
15-19 = 10y
-4=10y
-4/10=y
-2/5=y
Put y value back into either equation to find value of x.
x+y=5
x-2/5=5
x=5+2/5
x=27/5
Therefore, x,y = (27/5, -2/5)
Hope I helped :)
Answer:
80%
Step-by-step explanation:
12÷15= .8
.8=80%
..............
Bar graph <span> would best display the monthly snowfall amounts during the winter months
</span>a graph using parallel bars of varying lengths, as to illustratecomparative costs, exports, birth-rates, <span>etc.
</span>option A is right
Answer:How to simplify expressions with exponents and logs. • How to solve equations with ... 15) The temperature, T, of a given cup of hot chocolate after it has been cooling for tminutes can best be modeled by the function ...
Step-by-step explanation:How to simplify expressions with exponents and logs. • How to solve equations with ... 15) The temperature, T, of a given cup of hot chocolate after it has been cooling for tminutes can best be modeled by the function ...
Answer:
45 is the answer I think I don't know
