Advertisements
Advertisements
рдкреНрд░рд╢реНрди
A lending library has a fixed charge for the first three days and an additional charge for each
day thereafter. Aarushi paid Rs 27 for a book kept for seven days. If fixed charges are Rs ЁЭСе
and per day charges are Rs y. Write the linear equation representing the above information.
рдЙрддреНрддрд░
Total charges paid by Aarushi is given by
27 = x + 4y
⇒ x + 4y = 27
This is the required linear equation for the given information.
APPEARS IN
рд╕рдВрдмрдВрдзрд┐рдд рдкреНрд░рд╢реНрди
Which one of the following options is true, and why?
y = 3x + 5 has
Express the following linear equations in the form ax + by + c = 0 and indicate the values of
a, b and c in each case:
3x = -7y
Express the following linear equations in the form ax + by + c = 0 and indicate the values of
a, b and c in each case:
y = `x / 2`
Write two solutions of the following equation :
x = 6y
Find the value of ЁЭЬЖ, if x = −ЁЭЬЖ and y =`5/2`
is a solution of the equation x + 4y – 7 = 0.
If x = 1 and y = 6 is a solution of the equation 8x – ay + a2 = 0, find the value of a.
Any point on the line y = x is of the form ______.
The coordinates of points in the table:
| x | 0 | 1 | 2 | 3 | 4 |
| y | 2 | 3 | 4 | –5 | 6 |
represent some of the solutions of the equation x – y + 2 = 0.
How many solution(s) of the equation 2x + 1 = x – 3 are there on the number line?
Find the solution of the linear equation x + 2y = 8 which represents a point on x-axis.
