Answer:
Option A is correct answer.
Step-by-step explanation:
An equation is having two sides equal. It has an = sign in it.
So, Option A 2y+7 = 9 is an equation as it has = sign in it. So, it is correct option.
All other options do not have = sign in them so, they are not equations.
7 : x = 2 : 3
- divide 7 by 2.
7/2 = 3.5
- this is the scale factor.
- now multiply this by 3.
3 X 3.5 = 10.5
so, x = 10.5
The answer is B, kilometers.
—Evidence—
•] it is assumed that there are 6 stadia in a kilometer (km), meaning that Eratosthenes found the Earth's circumference to be about 42,000 km
Answer:
the simplest form is 10/9
Answer:
c
Step-by-step explanation: