Answer:
b
Step-by-step explanation:
Answer:
a = 5
Step-by-step explanation:
If it's easier for you, you can replace n(a) with y and put a as x.
Now the equation is y = 7x + 4.
It asks you to put in 39 as y.
39 = 7x + 4.
To solve this, the goal is to isolate the variable on one side. The first step I see is to subtract the 4 from both sides.
35 = 7x
Now divide both sides by 7 and we're done!
5 = x
The formula to calculate the amount is 1200(1+0.03/4)^5
The property identity of multiplication is applied in the given statement.
<h3>
Properties of Multiplication</h3>
The properties of multiplication are:
- Distributive: a(b±c)= ab±ac
- Comutative: a . b = b. a
- Associative: a(b+c)= c(a+b)
- Identity: b.1=b
From the property identity, you know that the product between any number by the number 1 equals that number. Example: 3 • 1=3.
The question shows 10=10•1. Like, it was shown previously, this occurs due to the identity property of multiplication.
Read more about the identity property here:
brainly.com/question/23977324
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The top 4 firms have (23 +22 +18 +12)% = 75% of the market.
The 4-firm concentration ratio is 0.75 or 75%.
