Answer:
Cantidad total de lapices= 76
Step-by-step explanation:
Dada la siguiente información:
Costo por docena= $0.79
Presupuesto total= $5
<u>Para calcular la cantidad total de lapiceras que se pueden comprar con $5, debemos usar la siguiente formula:</u>
Cantidad total de lapices= presupuesto total / costo por docena
Cantidad total de lapices= 5 / 0.79
Cantidad total de lapices= 6.33
<u>Para ser mas exactos:</u>
0.33*12= 4
Cantidad total de lapices= 6*12 + 4
Cantidad total de lapices= 76
Answer:
21
Step-by-step explanation:
(-28-35)/-3
-63/-3
21
Equation would be 6.95+.95x. 6.95 is the price of the pizza itself and the .95x is the amount of toppings and the cost.
The solution of the equation is x= 3 and y = 2
Step-by-step explanation:
Given,
-3x-4y = -17 and
-x-3y = -9
The system of equation can be rewritten as
3x+4y = 17 ------eq 1 and
x+3y = 9 ------ eq 2
To solve for x and y
Multiplying eq 2 by 3 we get,
3x + 9y = 27
or, 3x = 27-9y
Putting this value of x into eq 1 we get,
27-9y +4y = 17
or, -5y = 17-27
or, -5y = -10
or, y = 2
Now put y=2 in eq 2 we get,
x = 9 - 3(2)
= 3
Hence the solution is x = 3 and y = 2
