Answer:
45
Step-by-step explanation:
20:15 the ratio can be turned to a fraction
20/15
simplify
4/3
so now add the numerator and the denominator and get 7
then do 105/7=15
and then you do
4x15=60 (Destroyers)
3x15=45 (Battleships)
45 is your answer
Answer:

All real numbers less than 
Step-by-step explanation:
we have

Adds
both sides


Divide by
both sides

the solution is the interval ---------> (-∞,6)
All real numbers less than 
see the attached figure to better understand the problem
Answer:
If each serving is 3/4 of a cupcake then we have to multiply 18* 3/4 to get the answer of 13.5 and a half servings.
Step-by-step explanation:
is the score of Jonathan.
<h3 /><h3>What is percentage?</h3>
Percentage, which may also be referred to as percent, is a fraction of a number out of 100%. Percentage means "per 100" and denotes a piece of a total amount.
To calculate the percentage , Use the percentage formula:

According to the question:
Sarah scored on the spelling test = 
Jonathan scored = 75%
By formulating both the values;

= 
Therefore ,
is the score of Jonathan.
Learn more about percentage here:
brainly.com/question/13450942
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Because, when 4 multiply by 1/2 will equal 2, so 2xy=4(1/2xy)