Answer:
x=3
y=5
Step-by-step explanation:
3x+2y=19
- 2x+2y=16
_____________
x=3
3(3)=9
19-9=10
10÷2=5
y=5
4.78 is 4.776 to the nearest hundred
The B option is correct.
<h2>Exponent</h2>
Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.
Given
A number is -906,060.
<h3>To find </h3>
The equivalent number of the given number.
<h3>How to find the equivalent number of the given number?</h3>
We know the number is -906,060.
It can be represented as
.
Thus, the B option is correct.
More about the exponent link is given below.
brainly.com/question/5497425