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).
Answer:
49
Step-by-step explanation:
7^x
If x=2
7^2
49
If I am reading this correctly then the answer would be 14
b2 - 4ac =
(5) x 2 - 4 x (6) x (-1) = 14
A possible answer can be n = 1/10 + rt/-10.
I brought the - 4n over to the other side and the +1 to the other side, giving me -10n = -1 + rt. I divided it all by - 10, which gave me n=-1/-10 + rt/-10. Since two negatives cancel each other out and becomes a positive, -1/-10 becomes 1/10.
