Question

1. denali is the highest mountain in the united states. what is its height in meters? round to the nearest whole number. denali is approximately 20,320 ft high. 23. communicate and justify francesca wants to convert 1 cubic foot to cubic centimeters. use what you know about customary units to explain how she can do this. 24. higher order thinking at the state fair, a person must be at least 138 centimeters tall to ride the roller coaster. chiko wants to ride the coaster. he is 4 feet 7 inches tall. is chiko tall enough to ride the coaster? explain. 25. alonsos car holds a maximum of 19 gallons of gas. about how many liters of gas does alonso need to fill his gas tank? 26. the posted speed limit is 65 miles per hour. select all the metric measures that are greater than 65 miles per hour. 1.7.ar.3.3 65 km per hour 97.5 km per hour 104 km per hour 105.7 km per hour 120.3 km per hour 27. boys competing in the long jump event must jump at least 15 feet to qualify for the state track and field meet. select all the metric measures that are less than 15 feet. 1.7.ar.3.3 6.5 m 5.0 m 4.5 m 3.92 m 3.5 m

Explanation:

22.

Step1: Recall conversion factor

1 foot = 0.3048 meters.

Step2: Multiply height in feet by conversion factor

Denali's height is 20320 feet. So, $20320\times0.3048 = 6194.536$ meters.

Step3: Round to nearest whole number

Rounding 6194.536 to the nearest whole number gives 6195 meters.

Step1: Convert Chiko's height to centimeters

1 foot = 12 inches. Chiko is 4 feet 7 inches. 4 feet = $4\times12 = 48$ inches. So in total, Chiko is $48 + 7=55$ inches tall. Since 1 inch = 2.54 centimeters, Chiko's height in centimeters is $55\times2.54 = 139.7$ centimeters.

Step2: Compare with required height

The required height to ride the roller - coaster is 138 centimeters. Since $139.7>138$.

Step1: Recall conversion factor

1 gallon $\approx$ 3.78541 liters.

Step2: Multiply number of gallons by conversion factor

Alonso's car holds 19 gallons. So the number of liters is $19\times3.78541=71.92279$ liters. Rounding to an appropriate approximation, it's about 72 liters.

Answer:

6195

23.

1 cubic foot = 12 inches $\times$ 12 inches $\times$ 12 inches = 1728 cubic inches. Since 1 inch = 2.54 centimeters, then 1 cubic inch = $(2.54)^3$ cubic centimeters. So, 1 cubic foot = 1728 $\times(2.54)^3$ cubic centimeters. Calculate $(2.54)^3=2.54\times2.54\times2.54 = 16.387064$. Then $1728\times16.387064 = 28316.846592$ cubic centimeters.

24.