You can only simplify the expression, because it doesn't equal anything. If you simplify it it would be:
4n-1 + 3n-7
4n+3n + -1-7
7n-8
The ratio of the number of girls to the total number of children is 7 : 16.
<h3>
Ratio is defined as follows:</h3>
- It is a comparison between two or more numbers that measures sizes in relation to each other
- It describe how much of a thing is compared to another.
The number of girls in the playground = 7
The number of boys in the playground = 9
The total number in the playground is the sum of the number of girls and the number of boys.
Therefore,
total children in the playground = 7 + 9 = 16
The ratio of the number of girls to the total number of children can be express as follows:
learn more on ratio here: brainly.com/question/26169121?referrer=searchResults
Isiah is 5.83 miles away from his starting point.
When you draw the the miles Isaiah walks, you will discover that you are forming a right angle triangle.
To measure the length from the starting point to the ending point. We must used the Pythagorean equation. Where in the square of the hypotenuse is equal to the sum of squares of the other two sides.
a² + b² = c²
a = 3 miles 3² + 5² = c²
b = 5 miles 9 + 25 = c²
c = hypotenuse. 34 = c²
We must get the hypotenuse, since 34 is the square of the hypotenuse we must look for its square root.
c² = 34
c = √34
c = 5.83 miles
Answer:
1. 6/7
2. 1/2
3. 7/10
4. 39/40
5. 15/28
6. 3/10
7. 7/12
8. 1/6
9. 5/12
10. 1/8
Step-by-step explanation:
Answer:
2x + 3
Step-by-step explanation:
Let the number be x
2x + 3
Hope it helps :)
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