The unknown number expressed as a mixed fraction is 11 19/20
Let the unknown number be "x"
The sum of the number and 1.75 is expressed as x + 1.75
Half the sum of a number and 1.75 is 1/2(x+1.75)
Equating the result to -5.1 wil give:
1/2(x+1.75) = -5.1
Solve the resulting equation
x + 1.75 = 2(-5.1)
x + 1.75 = -10.2
x = -10.2 - 1.75
x = 11.95
x = 1195/100
x = 11 95/100
Hence the unknown number expressed as a mixed fraction is 11 19/20
Learn more here: brainly.com/question/14583740
Um... It's none.
Did you took a picture of the wrong question.
The answer of that question is the top second one.
Given that the two cone are similar, then
3/7 = x/5
7x = 15
x = 15/7
I'm sorry for been so late.
Rational Numebers: a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. For example: 1,2,3,-1,-2,-3
Irrational Numbers: an irrational number is a real number that cannot be expressed as a ratio of integers. For example: 1/3, 1/7 , 1/9
Real Numbers: a real number is a value that represents a quantity along a continuous line. For example: all rational and irrational numbers.
Whole Numbers: A member of the set of positive integers and zero. A positive integer. An integer. For example: 142, 20, 1