1 inch of the model - 18 inches of the car
9 inches of the model - x inches of the car

The car is 162 inches long.
(1/7) Multiplied By x is 1/7x And (1/7) Multplied By Positive 21 is 3. So It Will Then Change To 1/7x + 3 = -6.
Subtract 3 From Both Sides. Then The Equation Changes To 1/7x = -9
Then Since (1/7) Basically Means To Divide You Would Multiply By 7 On Both Sides And Then x Would Equal -63!(:
Then Can Plug In -63 Where x Is To Check Your Work! Hope I Helped!
Answer:
Option 1st is correct

Step-by-step explanation:
Area of the triangle is given by:

where,
A is the area of the triangle
b is the base and
h is the height of the triangle.
As per the statement:
For a project, you need to make three triangles out of cardboard.
Each triangle has a height of 5 inches and a base of 10 inches
⇒b = 10 inches and h = 5 inches

Since, you need to make three triangles out of cardboard
⇒
Therefore, an equation can you use to solve for the total amount of cardboard you will need is,

Answer:n ÷ 7 = 6n
Step-by-step explanation: