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Alex73 [517]
3 years ago
5

Learning

Mathematics
1 answer:
bazaltina [42]3 years ago
6 0

Answer:

2:25

Step-by-step explanation:

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The average speed to go by car from home to college is 30 miles per hour. The average speed to go back home from college is 20 m
Levart [38]

Answer:

24 mph for both 60 miles and 40 miles.

Step-by-step explanation:

We need to find how long it takes to get to college and from it.

Speed x time (x) = Distance (60)

30x = 60

x=2

It takes two hours to get to college

20x = 60

x = 3

It takes 3 hours to get back. It's a total of 5 hours, 2 hours at 30mph and 3 at 20. Now we need to find the average

30+30+20+20+20=120

120/5= 24

The average speed for the round trip is 24.

To do the second part, we follow the same process, but replace 60 with 40 for distance.

30x=40

x= 1.33

20x=40

x=2

We can add the total distance and divide by total time to find the average.

The total distance is 80. Time is 3.33

80/3.33=24

The average speed is still 24.

3 0
3 years ago
What’s the area of a circle if the diameter is 80
aleksley [76]

The area of a circle if the diameter is 80 is

A=5026.55

8 0
3 years ago
Read 2 more answers
What solves for the variable? (g + 7) / 7 = 3<br><br> Thanks :)
sveta [45]

Answer:

g=14

explanation:

4 0
3 years ago
Express the following as a pecentage:16 out of 40
Irina-Kira [14]

the answer is 40 percent

6 0
3 years ago
An equation is shown below:
meriva
<span>4(2x - 5) = 4

8x - 20 = 4

8x = 4 + 20

8x = 24

x = </span>\frac{24}{8}

x = 3

Part A:

This equation has only one solution. {Working shown above}

Part B:

The solution is x = 3. {Working shown above}
7 0
3 years ago
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