Answer:
The total cost of the meal including tip is $55.80.
Step-by-step explanation:
Cost of the meal = $46.50
tip = 20%
total cost = ?
Finding the tip cost:
20% of cost of the meal is equal to the tip cost.
20% of 46.50
(% = 1/100 and of means multiplication)
20/100 * 46.50
930/100
$9.30
20% tip = $9.30
Finding total cost:
Cost of the meal + tip
46.50 + 9.30
55.80
The total cost of the meal including tip is $55.80.
Answer:
Step-by-step explanation:
Answer:
x = 3 and y = 1
Step-by-step explanation:
Given equations
y=3x-8 and y=4-x
We will substitute y from second equation in the first and get:
4-x = 3x-8 first we will add (+x) to both sides and get
4-x+x = 3x+x-8 => 4 = 4x-8 now we will add (+8) to the both sides and get
4+8 = 4x-8+8 => 12 = 4x now we will change the sides of equation and get
4x = 12 => x = 12/4 = 3 => x=3 now we will replace x=3 in the second equation
y= 4-x = 4-3=1 => y=1
Finally we have (x , y) = ( 3 , 1)
God with you!!!
Assume that the other number is y.
we know that the addition of both number is -9
this means that:
x+y=-9
reorder this equation to seperate the y variable:
y=-9-x
