Question

A coral reef grows 0.13 m every week. How much does it grow in 15 weeks

Answer 1

For this case we have reef coral grows 0.13 meters per week, if we want to indicate how much will have grown in 15 weeks we have the following rule three:

0.13 metrs ---------------> 1 week

x -------------------------------> 15 weeks

Where "x" is the number of meters reef coral grows in 15 weeks.

$x = \frac {15 * 0.13} {1}\\x = 1.95 \ m$

Thus, in 15 weeks it grows 1.95 meters.

Answer:

$1.95 \ m$

Answer 2

0.13 times 15 is 1.95. Which means the coral reef grows 1.95 m in 15 weeks.