Question

is im2a unit 5 task 20

1. this table describes the departures of flights out of an airport for the months of june and july.

2a what percentage of the flights in july were delayed?
give your answer as a percentage, to one decimal place.
percentage of flights = 24.9%
5 well done!
2b what fraction of the total number of flights during the two months were ones that departed on time in june?
fraction which departed on time =
press /

Explanation:

Step1: Identify needed values

Assume from the table (not shown, but typical for such problems): Let \( O_{June} \) = on - time June flights, \( T_{June} \) = total June flights, \( T_{July} \) = total July flights. Total two - month flights \( T_{total}=T_{June}+T_{July} \). We need \( \frac{O_{June}}{T_{total}} \).
(Note: Since the table is not provided, we'll use the general approach. For example, if in a typical problem: Suppose June on - time = 450, June total = 500, July total = 550. Then \( T_{total}=500 + 550=1050 \), fraction \(=\frac{450}{1050}=\frac{3}{7}\approx0.429 \). But we need actual values from the table. However, the process is:

1. Find the number of on - time flights in June (let's call it \( n \)).
2. Find the total number of flights in June and July (let's call it \( N \), \( N=\text{June total}+\text{July total} \)).
3. The fraction is \( \frac{n}{N} \).

Step2: Calculate the fraction

Suppose from the table (if we had it, for example):
Let’s assume (hypothetical values to show calculation):
On - time June flights: 480
Total June flights: 500
Total July flights: 520
Total flights (June + July): \( 500+520 = 1020 \)
Fraction \(=\frac{480}{1020}=\frac{8}{17}\approx0.471 \) (but this is hypothetical).

In reality, you need to:

• Get the number of on - time June flights (let's say from the table, if it's 460)
• Get total June flights (500) and total July flights (540), so total \( 500 + 540=1040 \)

Fraction \(=\frac{460}{1040}=\frac{23}{52}\approx0.442 \)

But since the table is not provided, the general formula is \( \text{Fraction}=\frac{\text{On - time June flights}}{\text{Total flights in June and July}} \)

Answer:

(To get the actual answer, you need to:

1. Find the number of on - time flights in June (let's call this value \( A \)).
2. Find the total number of flights in June (let's call this \( B \)) and total number of flights in July (let's call this \( C \)).
3. Calculate total flights \( D=B + C \).
4. The fraction is \( \frac{A}{D} \).

For example, if \( A = 450 \), \( B = 500 \), \( C = 550 \), then \( D=1050 \), fraction \(=\frac{450}{1050}=\frac{3}{7}\approx0.429 \) (or in reduced fraction \( \frac{3}{7} \) or decimal 0.429). But you need to use the values from your table.)

(Note: Since the table is not visible, the above is the method to calculate. Once you have the values from the table, substitute into \( \frac{\text{On - time June flights}}{\text{Total flights (June + July)}} \) to get the fraction.)