Answer:
x = , y = 6
Step-by-step explanation:
5x + y = 7 → (1)
20x + 2 = y → (2)
Substitute y = 20x + 2 into (1)
5x + 20x + 2 = 7
25x + 2 = 7 ( subtract 2 from both sides )
25x = 5 ( divide both sides by 25 )
x = =
Substitute this value into (2) and evaluate
20( ) + 2 = y
4 + 2 = y , so
y = 6
Answer:
45% = 0.45
Step-by-step explanation:
45%
=
= 0.45
Answer:
The result is 19
Step-by-step explanation:
Step 1: Parenthesizing (5-2)=3
Step 2: Exponentiation
Step 3: Multiplication and division 3x4=12 and 6/3=2
Step 4: Addition and subtraction 9+12=21, and 21-2=19
21-2
19
The operations are ordered from highest to lowest in the order:
1. Parenthesizing,
2. Factorial,
3. Exponentiation,
4. Multiplication and division,
5. Addition and subtraction.
Hope this helps!