To find the area of any rectangle, you multiply its length by its width. You can think of this in a sense as taking its length and "stretching" it into the second dimension over the width.
Here, a rectangle with length 10 cm and width 3 cm would have an area of 10 x 3 = 30 cm²
First you need to find the rate. This problem is based on the formula d = rt
d = distance
r = rate
t = time.
The question is asking how many miles will it travel in 8 hours so to find this out we need to find the rate when the car travels 240 miles in 4 hours. We use this information and plug it into the model d = rt
d = 240
r = don't know yet
t = 4 hr
d = rt
240 = 4r
240 / 4 = 4r / 4
60 = r
r = 60
So the car is going at a rate of 60 miles per hour. Now that we know this we can solve for how many miles the car will travel in 8 hours.
d = rt
d = r * t
d = 60 * 8
d = 480
So the car will travel 480 miles in 8 hours
Another way to think about this is that you know the car traveled 240 miles in 4 hours and the question is wanting to know how far the car will travel in 8 hours, which would be double the 4 hours so 240 + 240 = 480
Speed is determined as distance travelled over time. In the
problem, given is the speed and distance. Time, we will be distance over speed.
Substitute the given to the formula
t=d/s
t = 200 km / 35.27 km/h
t = 5.67 hours
Which is not a property of mathematical proofs?
Conclusion has nothing to do with math
it is for writeing.
Answer:
3
Step-by-step explanation:
Get rid of fractions:
Multiply the whole equation, i.e. all terms both sides of the equals sign, by the denominator or the lowest common multiple of all denominators if there are multiple fractions in the equation;
In this case, only one term is a fraction and therefore has a denominator (i.e. 7), so it is this number we multiply the equation by to get:
7(y) = 7(-³/₇.x) + 7(3)
7y = -3x + 21
3x + 7y = 21
