In a school 40% are boys and 900 are girls. find the total number of students of the school and the number of boys
1 answer:
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Answer: a) The function :
f(x) = 5x + 1000
b) f(x) = 2250 dollars
Step-by-step explanation: Please find the attached file for the solution
<em><u>Solution:</u></em>
Given that,
We have to factor out terms and write as a product of 2 binomials and monomial
A monomial is a mathematical expression with only one term, while a binomial is a mathematical expression with two terms.
From given expression,
3 and a are common factors in second bracket
Hence, the product of two binomial is written in two binomial and a monomial
Answer:
The percentage decrease in TV price after five years is 6.89
Step-by-step explanation:
Given as :
The cost of TV five years ago = $ 2400
The present cost of TV = $ 1680
Let The decrease percentage in five years = x
So, The cost of TV after T year = Present cost ×
Or, $ 1680 = $ 2400 ×
Or, 0.7 =
Or, = 1 -
Or, 0.9311 = 1 -
Or, = 1 - 0.9311
∴, = 0.0689
I.e x = 0.0689 × 100 = 6.89
Hence The percentage decrease in TV price after five years is 6.89 Answer