Question

1. julie has songs and photos on her phone. she has 25 songs. this number represents 20% of the total number of songs and photos on julies phone. how many photos does julie have on her phone? a. 5 b. 50 c. 100 d. 125 10. a zebra runs 15 miles in 30 minutes. a horse runs 20 miles in 35 minutes. the zebra and the horse run at constant rates. part a circle an answer choice to complete the statement. the zebra runs at a slower rate. horse zebra part b at what rate in feet per second does the zebra run? the zebra runs at a rate of ____ feet per second.

Explanation:

Step1: Find total number of songs and photos

Let the total number of songs and photos be $x$. We know that 25 songs is 20% (or 0.2) of $x$. So, $0.2x = 25$. Solving for $x$, we get $x=\frac{25}{0.2}=125$.

Step2: Calculate number of photos

The number of photos is the total number of items minus the number of songs. So, the number of photos is $125 - 25=100$.

Step3: Calculate zebra's speed in miles - per - hour

The zebra runs 15 miles in 30 minutes. Since 30 minutes is 0.5 hours, the zebra's speed $v_{zebra}$ in miles - per - hour is $v_{zebra}=\frac{15}{0.5}=30$ miles per hour.

Step4: Convert zebra's speed to feet - per - second

We know that 1 mile = 5280 feet and 1 hour = 3600 seconds. So, to convert 30 miles per hour to feet per second, we do $30\times\frac{5280}{3600}=44$ feet per second.

Answer:

1. C. 100
2. Part A: zebra

Part B: 44