Question

I need help plz ...i need this done by today !!!!

Answer 1

​5. At First Street Elementary School, about 18% of the 610 students ride bicycles to school. About how many students ride bicycles to school?

Since 100% is equal to 610 students​

​Then 18% is equal to X students

Results X students = 18%*610students/100% = 109.8 students. As it does not make sense to split students, we have to round up to the nearest unit. Then we have 110 students. That would be approximately 18.03%, that rounded to the nearest unit is approximately 18%.​

Answer 5) 110 students ride bicycles to school.​

​6. Write a proportion and answer each question using the conversion factor 1 inch = 2.54 centimeters.

a) Don is 67 inches tall. How many centimeters tall is he?​

Since 1 inch is equal to 2.54 centimeters​

Then 67 inches will be  X centimeters​

Results X cm = 67in * 2.54cm/1in = 170.18 centimeters​

Answer 6a) Don is 170.18 centimeters tall.​

b) Amira's pencil is 13.5 centimeters long. How many inches long is it?​

Since 2.54cm is equal to 1in​ch

​Then 13.5cm will be  X inches

Results X inches = 13.5cm * 1in/2.54cm ≈ 5.315 approximately 5.32 inches​

​Answer 6b) Amira's pencil is approximately 5.32 inches long.

7. Use dimensional analysis to convert 60 miles per hour to feet per second.​ Remember that there are 5,280 feet in 1 mile.

​Since 1 mile is equal to 5,280 feet

Then 60 miles will be  X feet​

Results X feet = 60 miles * 5,280 feet/1 mile = 316,800 feet​

Since there are 3,600 seconds in 1 hour​

316,800 feets per hour = 316,800 feets/hour x 1hour/3,600secs = 88 feet/sec​

Answer 7) 60 miles per hour are converted to 88 feets per second​

​Hope this helps!​​​​

$\textit{\textbf{Spymore}}$​​​​​​​