One integer is four times other what is the value of lesser, One integer is...

One integer is four times other. The sum of the integers is 5. What is the value of the lesser integer? Let x = the lesser integer and now let y = the greater integer. The ?rst

How long will it take him to plow 21 acres, Mr. Brown plowed 6 acres in 1 h...

Mr. Brown plowed 6 acres in 1 hour. At this rate, how long will it take him to plow 21 acres? Mr. Brown plows 6 acres an hour, so divide the number of acres (21) through 6 to f

Math, A screening test for a newly discovered disease is being evaluated. I...

A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individu

Matrix, parts of matrix and functions

parts of matrix and functions

Prove that xa+ar=xb+br of circle, In figure, XP and XQ are tangents from X ...

In figure, XP and XQ are tangents from X to the circle with centre O. R is a point on the circle. Prove that XA+AR=XB+BR Ans:    Since the length of tangents from externa

Explanation of rational expression,

Determine the poisson probability distribution, A manufacturer assures his ...

A manufacturer assures his customers that the probability of having defective item is as 0.005. A sample of 1000 items was inspected. Determine the probabilities of having the give

Quadriatic-equations, Q. a(b - c)x^2 + b(c - a)x + c(a - b) = 0 has equal r...

Q. a(b - c)x^2 + b(c - a)x + c(a - b) = 0 has equal roots then b = ? Ans: Condition that a quadratic equation ax² + bx + c = 0 has equal roots is: Its discriminant, b² - 4ac = 0 A

Determine rational exponents, Evaluate following. (a) 625 3/4 Solut...

Evaluate following. (a) 625 3/4 Solution  (a) 625 3/4 Again, let's employ both forms to calculate this one.             625 3/4   =( 625 1/4 ) 3 =(5) 3   = 12

Practice, #question.Mai is 3 years ypunger than twice the age of her brothe...

#question.Mai is 3 years ypunger than twice the age of her brother .If b represents .