Answer:
It's cheaper to eat out.
Step-by-step explanation:
Answer:
Okay?
Step-by-step explanation:
Answer:
A=45m²
Step-by-step explanation:
A=bh=9·5=45m²
Answer:
52 cards
Step-by-step explanation:
call the amount he started with " x "
then he bought 8 cards
so the new equation is
x+8
then he lost half of his cards
so now the equation is
(x + 8 )/2
that amount to 30 cards as per what is given in the problem
so now the equation is
( x + 8 )/2 = 30
solve using inverse operations and simplifying
( x + 8 )/2 = 30
*2 *2
x + 8 = 60
-8 -8
x = 52
4 x - 2 y = 6
2 x + y = 5 / * 2 ( we will multiply both sides by 2 )
-------------------
4 x - 2 y = 6
+
4 x + 2 y = 10
---------------------
8 x = 16; x = 2
4 + y = 5
y = 5 - 4; y = 1
In the system of equations D :
8 x = 16; x = 2 ,
8 + 2 y = 10
2 y = 2, y = 1
Answer: D ) is the equivalent system
