Answer:
Substitute the values given for f(x) and g(x), in 1. they say f(x)=4x and g(x)=1-x
and basically just substitute them for the functions themselves.
4x+1-x
add like terms!
4x-x = 3x!
3x+1 is your simplified answer, since it is an expression it cannot be simplified any further.
Answer:
x=25.45
Step-by-step explanation:
Yes 5,4 is y=x-1 actually anything can be those symbols as long as they add up to the Equation
Answer:
$82 sundaes
$74 banana split
Step-by-step explanation:
Step one :
Given data
Cost of sundaes =$2 each
Cost of banana split =$3 each
Let the number of sundaes bought be x
And the number of banana split bought be y
The total is x+y
The shop sold 8 more Sundaes than the Banana split
x=8+y—-------1
Total amount made = $156
Therefore the system of equation for the situation is
x=8+y----—----------1
2x+3y=156---------2
But x=8+y
8+y+y=156
8+2y=156
2y=156-8
2y=148
Divide both sides by 2
y=148/2
y=74
On That day they sold $74 banana split
And also they sold x=8+74=$82 sundaes
Answer:
see below
Step-by-step explanation:
10x+18<-2
Subtract 18 from each side
10x+18-18<-2-18
10x < -20
Divide by 10
10x/10 < -20/10
x < -2
