2. Equations & Inequalities
2.05 Practical problems with equations
Interactive practice questions
When a number is added to both the numerator and denominator of $\frac{1}{5}$15, the result is $\frac{3}{7}$37.
Let $n$n represent the number. Solve for $n$n.
Easy
2min
The perimeter of the trapezoid below is $32$32 centimeters.
Easy
2min
Valentina tries to guess how many people are at a concert, but she guesses $400$400 too many. Kenneth guesses $150$150 too few. The average of their guesses is $3625$3625. Solve for $x$x, the exact number of people at the concert.
Easy
3min
$4$4 divided by the sum of $x$x and $6$6 equals the quotient of $2$2 and the difference of $x$x and $6$6.
Solve for $x$x.
Easy
3min
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