Annalisa, Keiko, and Stefan want to compare their heights. Annalisa is 64 inches tall. Stefan tells her, “I’m about 7.5 centimeters taller than you.” Keiko knows she is 1.5 inches shorter
than Stefan. Give the heights of all three people in both inches and
centimeters to the nearest half unit.
THANK YOU!
work the problem in one set of units, e.g. cm
All your really need to know : 1 inch = 2.54 cm
Annalisa = 64 inches = 162.56 cm
Stefan is 7.5 cm taller , so Stefan = 170.06 cm
Keiko is 1.5 inches or 3.81 cm shorter than Stefan
Keiko = 166.25
To convert to inches, just divide each person's height by 2.54, then round to the required accuracy.
(do the divisions before you round off the centimetres)
Pizza
thanks
Analisa = 162.56 cm
Stefan = 170.06 cm
Keiko = 166.25 cm
Jsusjsndnekd
Annalisa is 64 inches or about
162.6
cm tall.
Stefan is about
inches or about
170.1
cm tall.
Keiko is about
inches or about
166.3
cm tall.
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To solve this problem, let's break it down step by step:
1. We are given that Annalisa is 64 inches tall.
2. Stefan says he is about 7.5 centimeters taller than Annalisa. To find his height in inches, we need to convert the centimeters to inches. Since 1 inch is approximately equal to 2.54 centimeters, we can calculate Stefan's height by dividing 7.5 centimeters by 2.54: 7.5 cm / 2.54 cm/inch ≈ 2.95 inches. Since Stefan is taller than Annalisa, we add this height to Annalisa's height: 64 inches + 2.95 inches ≈ 66.95 inches.
So far, we have Annalisa's height as 64 inches and Stefan's height as 66.95 inches.
3. Keiko knows she is 1.5 inches shorter than Stefan. To find Keiko's height, we subtract 1.5 inches from Stefan's height: 66.95 inches - 1.5 inches ≈ 65.45 inches.
Therefore, the heights of all three people are as follows:
- Annalisa: 64 inches
- Stefan: 66.95 inches
- Keiko: 65.45 inches
Now, to convert these heights to centimeters:
- Annalisa: 64 inches * 2.54 cm/inch ≈ 162.56 cm
- Stefan: 66.95 inches * 2.54 cm/inch ≈ 170.51 cm
- Keiko: 65.45 inches * 2.54 cm/inch ≈ 166.39 cm
Therefore, the heights of all three people in inches (to the nearest half unit) and centimeters (rounded to the nearest half unit) are as follows:
- Annalisa: 64 inches (162.5 cm)
- Stefan: 66.95 inches (170.5 cm)
- Keiko: 65.45 inches (166.5 cm)