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Fantom [35]
3 years ago
11

Chloe drives from her house to her Grandma's house 48 miles away in an hour and 12 minutes. How fast was she driving on average?

Mathematics
2 answers:
valentinak56 [21]3 years ago
5 0

Working in minutes might give us a little more flexibility here, so we can start by converting 1 hour and 12 minutes, giving us 60 + 12 = 72 minutes for Chloe to drive 48 miles.

We can write her Chloe's rate then as 48 mi/72 min; since 48 and 72 have the factor 12 in common, we can reduce this to a rate of 4 mi/6 min. We want to find how many miles Chloe would travel in <em>60 minutes </em>at that rate. Since 60 = 6 x 10, we can scale the rate up by a factor of 10, getting us a rate of 4 x 10 = 40 mi/60 min, or 40 mph.

Lera25 [3.4K]3 years ago
3 0

To find a speed in miles per hour, we need to divide a number of miles by a number of hours.

We are given 48 miles, so we already have a number of miles.

We are given the time as 1 hour and 12 minutes. We need to convert this time into hours.

1 hour + 12 minutes = 1 hour + 12/60 hour = 1.2 hours

speed = distance/time = 48 miles / 1.2 hours = 40 mph

Answer: The fourth choice, 40 mph.

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liubo4ka [24]

Answer:

Step-by-step explanation:

6/14 = -9/21 = -12/28 = -15/35 = -18/42 = -21/49 = -24/56 = -27/63 = -30/70 = -33/77 = -36/84 = -39/91 = -42/98 = -45/105 = -48/112

6 0
3 years ago
A watermelon seed is 0.4cm long. How far would a line of 126 stretch?
nikdorinn [45]

Answer:

0.504m

Step-by-step explanation:

First, we would multiply 0.4cm by 126 watermelon seeds to find the length of the line in cm.

0.4*126

= 50.4cm

Therefore, the line of watermelon seeds stretches 50.4cm.

Now, because the question wants us to type the answer in meters, we must convert 50.4cm into meters. We do this by dividing 50.4 by 100 since 100cm makes up 1 meter.

50.4/100

= 0.504m

Therefore, the line of watermelon seeds stretches 0.504m.

I hope this helps!

6 0
3 years ago
Find the area of the composite figure in terms of the figure (use 3.14 for pi)​
svp [43]

Answer:

105.12 ft²

Step-by-step explanation:

Let's first find the area of the rectangle.

10\cdot8=80 ft², so the rectangle has an area of 80ft².

To find the area of the semi-circle, we find the area of a whole circle and divide by two.

The formula to find the area of a circle is \pi r^2. The radius is 4, as the diameter is 8.

3.14\cdot4^2

3.14\cdot16

50.24\div2=25.12

Add 80 and 25.12:

80+25.12=105.12

Hope this helped!

5 0
3 years ago
When sizes of pizzas are quoted in inches, the number quoted is the diameter of the pizza. A restaurant advertises an 8-inch “pe
mariarad [96]

Answer:

yes because if they want a bigger pizza or more they can just buy 2 eight inch pizza

Step-by-step explanation:

pizza is lit

8 0
3 years ago
Jessica’s car depreciates in value by 11% per year. Jessica bought her car for £21000. Work out how much her car will be worth a
marishachu [46]

Answer:

Brainliest

Step-by-step explanation:

21,000 x 0.89^7 =

9,288.58032806109 = 9288.58

6 0
3 years ago
Read 2 more answers
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