Algebra Answers

25x^2+4x=100

Table 1 shows the height and growth of two friends for a year.

Kamal = Height:145 cm Growth: 30%

Salman = Height: 140 cm Growth: 35%

By applying the concept of proportion, who is more higher after a year? Justify your choice.

A school has 250 students and 43 of them are perfects. Find the percentage of ordinary students

47 out of 50 students are persent in school today. Find the. percentage of students who are present today.

What is the 20th term of the sequence: 1,1/3, . . . . . .,n +2/ 2n^2 + 3n - 2

Find the fourth term in the expansion x^2 -2y^1/2

A student had multiplied a number by 4/3 instead of dividing it by 4/3 and got 70 more than the correct answer. Find the number.

Explain what it means for a pattern to be a function

Suppose an x-y axis is superimposed on the map with its origin at Des Moines, Iowa. Write the equation for the parabola that would represent the cold front. Let x be in hundreds of miles. Verify your equation on your graphing calculator. 

In a class there are 20 boys and 15 girls. The ratio of boys to girls is. Show solution.

a. 4:3

b. 3:4

c. 4:5

d. none of these