The Martin family can drive 99 miles using 3 gallons of gas
Answer:
85 square ft
Step-by-step explanation:
8.5cm times 4 cm = 34 cm
34 cm times 2.5 (because 1 cm = 2.5ft) = 85 square ft
Answer:
The answer is
![2x - 6 = 4](https://tex.z-dn.net/?f=2x%20-%206%20%3D%204)
Step-by-step explanation:
Let The number is x
Then the equation is
![2x - 6 = 4](https://tex.z-dn.net/?f=2x%20-%206%20%3D%204)
That's a trapezoid,
![A = \frac 1 2 (b+B)h](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%201%202%20%28b%2BB%29h)
![A = \frac 1 2 (4+12) 4 = 32](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%201%202%20%284%2B12%29%204%20%3D%2032)
Answer: 32
But say we didn't know the formula. We can chop out the 4 by 4 square and we have two 45/45/90 triangles side 4 left over, so two 4 by 4 squares,
A = 2(4)(4) = 32
We can think of this as 12 by 4 rectangle with two 4 by 4 right triangles chopped out:
A = 12(4) - 2(1/2)(4)(4) = 48 - 16 = 32