X=area of Sahara. y=area of the Gobi Desert. We suggest this system equations: x+y=4000000 x=7y solve by susbstitution method. (7y)+y=4,000,000 8y=4,000,000 y=4,000,000 / 8=500,000
x=7y x=7(500,000)=3,500,000
The area of Sahara=3,500,00 miles². The area of the Gobi Desert=500,000 miles²
To check: Te sum of their areas is : 3,500,000 miles²+500,000 miles²=4,000,000 miles² Te area of sahara (3,500,000 miles²) is 7 times the area of the Gobi Desert (7*500,000 miles²=3,500,000 miles²).
The answer is 108cm^2 because it gives you the entire height of the shape minus the height of the rectangle the divide it by two to find the height of the triangles the find the area of all the different shapes then add it together
