contestada

3. Melissa knows that 30 miles per hour is equivalent to
44 feet per second. If Melissa drives at a speed of
70 miles
per hour, which of the following is closest to
hor speed in fcet per second?

Respuesta :

MrRoyal

Answer:

[tex]7 0 miles/hour = 103 feet/second[/tex]

Step-by-step explanation:

Given

[tex]30 miles/hour = 44 feet/second[/tex]

Required

Determine the equivalent of 70 miles per hour

[tex]30 miles/hour = 44 feet/second[/tex]

Multiply both sides by 7/3

[tex]\frac{7}{3} * 30 miles/hour = \frac{7}{3} * 44 feet/second[/tex]

[tex]7 * 10 miles/hour = \frac{7}{3} * 44 feet/second[/tex]

[tex]7 0 miles/hour = \frac{7}{3} * 44 feet/second[/tex]

[tex]7 0 miles/hour = \frac{308}{3} feet/second[/tex]

[tex]7 0 miles/hour = 102.67 feet/second[/tex]

[tex]7 0 miles/hour = 103 feet/second[/tex] (Approximated)

Otras preguntas

Q&A Education