Deidre is 5 feet 4 inches tall and her weight is 135 pounds. her bmi is closest to kg/m2.

Deidre bmi is 23.73.

1. Multiply the weight by .45:

135 X .45 = 60.75kg

2. Multiply the height in INCHES by .025

Convert 5feet 4inches to only inches (5*12+4) = 64 inches

Now multiply 64 X .025 = 1.6 m

3. Square the answer from the above step.
 
1.6 X 1.6 = 2.56m

4. Divide the answer from the first step by the answer from the third step.
60.75kg/2.56m = 23.73.

Deidre bmi is 23.73.

25x + 15y = 265

x+y = 13

Step-by-step explanation:

Step 1:

Given

Number of shirts Leah can iron in an hour = 25 shirts

Number of shirts Christopher can iron in an hour = 15 shirts

Total number of hours worked by both = 13 hours

Total number of shirts ironed by them = 265 shirts

Step 2 :

Let x represent the number of hours Leah works and y represent the number of hours Christopher works

Leah irons 25 shirts in one hour, so in x hours he would iron 25x shirts

Christopher irons 15 shirts in one hour, so in y hours he would iron 15y shirts

Given total shirts ironed by them together is 265 , we have

25x + 15y = 265

They worked a combined of 13 hours, so

x+y = 13

Step 3:

The system of equations that could be used to determine the number of hours Leah worked and the number of hours Christopher worked are ,

25x + 15y = 265

x+y = 13