Answer:
x=2
Step-by-step explanation:
Add 4 to both sides:
-2=-4+x
-2+4=-4+4+x
2=x
Answer:
Step-by-step explanation:
BC/220=sin 60
BC=220 sin 60=220×√3/2=110√3≈190.5 ft
Answer:
60 miles
Step-by-step explanation:
Let
x ----> the number of miles
we know that
The number of miles multiplied by $0.60 per mile plus $2 plus the charge of $5.50 for tolls (because you are travelling from the airport) must be equal to $43.50
so
The linear equation that represent this problem is

Solve for x
Combine like terms left side

subtract 7.50 both sides


divide by 0.60 both sides

Answer:
C) 67.5 square feet
Step-by-step explanation:
the equation for finding the area of a triangle is height times the base divided by 2. so it would be 15/2 then multiplied by 9
Answer:
(x + 7) (x + 1)
Step-by-step explanation:
Product = 7
Sum = 8
Factors = 1 , 7
x² + 8x + 7 = x² + 7x + x + 7
= x(x + 7) + (x + 7)
= (x + 7) (x + 1)