Evaluate the expression 16a+b when a=(3)/(4) and b=3 .

Answer:

40 feet

Step-by-step explanation:

60x40=2400

2400/2=1200

1200/30=40

The total distance that Gavin and Ethan ran last week is: 21000 meters

How to find the total distance?

Gavin ran 7 kilometers last week, and Ethan ran twice as far as Gavin. To find the total distance that Gavin and Ethan ran last week, we need to add the distance that Gavin ran to the distance that Ethan ran.

Since Gavin ran 7 kilometers, we can convert this to meters by multiplying by 1000:

7 kilometers * 1000 meters/kilometer = 7000 meters

Since Ethan ran twice as far as Gavin, we can find the distance that Ethan ran by multiplying Gavin's distance by 2:

2 * 7000 meters = 14000 meters

Therefore, the total distance that Gavin and Ethan ran last week is:

7000 meters + 14000 meters = 21000 meters

In summary, Gavin ran 7000 meters and Ethan ran 14000 meters last week, for a total distance of 21000 meters that they both ran.

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If Ethan ran twice as far as Gavin then he ran 14 kilometers. 7*2=14. And then you add 7 to 14 which gives you 21. so they ran a total of 21 kilometers

Answer: You can travel 43 miles

Step-by-step explanation:

To determine how far you can travel from the airport by taxi for $31.50, we can subtract the fixed charges from the total cost and then divide the remaining amount by the cost per mile.

Let's calculate:

$31.50 - $4.00 (base fare) - $6.00 (airport charge) = $21.50

Now, we can divide the remaining amount by the cost per mile:

$21.50 / $0.50 per mile = 43 miles

So, you can travel approximately 43 miles from the airport by taxi for $31.50.