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amm1812
3 years ago
11

Courtney walks 1 mph slower than Brandi does. In the time that it takes Brandi to walk 6.5 mi, Courtney walks 5 mi. Find the spe

ed of each person
Mathematics
1 answer:
posledela3 years ago
4 0

Answer:

Courtney's walking speed = 3.33mph

Brandi's walking speed = 4.33 mph

Step-by-step explanation:

Let x = Courtney's walking speed

then

(x + 1) = Brandi's walking speed

:

Time = Distance/speed

Brandi walks 6.5 mi time = Courtney walks 5 mi time

6.5/x + 1 = 5/x

Cross multiply

6.5x= 5(x+1)

6.5x= 5x + 5

6.5x - 5x = 5

1.5x = 5

x = 5/1.5

x = 3.33 mph is Courtney's walking speed

Note that:

(x + 1) = Brandi's walking speed

3.33mph + 1 = 4.33mph

Therefore,

Courtney's walking speed = 3.33mph

Brandi's walking speed = 4.33 mph

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Wegnerkolmp or someone who can explain maths please<br> I need a proper explanation
umka2103 [35]

Answer: 66 degrees

Explanation:

Check out the attached image below. Figure 1 is the original image without any additions or alterations. Then in figure 2, I extend segment BC to form a line going infinitely in both directions. This line crosses segment DE at point F as shown in the second figure.

Note how angles ABC and DFC are alternate interior angles. Because AB is parallel to DE (given by the arrow markers) this means angle DFC is also 24 degrees

Focus on triangle DFC. This is a right triangle. The 90 degree angle is at C.

So we know that the acute angles x and 24 are complementary. They add to 90. Solve for x

x+24 = 90

x+24-24 = 90-24

x = 66

That is why angle CDE is 66 degrees

6 0
3 years ago
PLEASE HELP I WILL GIVE A BRAINLIEST TO THE BEST ANSWER THAT HAS ALL WORK SHOWN, THE CORRECT ANSWER AND MAKES SENSE.
OLga [1]
<span> -4w+8+4w=2+2
</span><span> -4w + 8 +4w = 4
</span> -4w + 8 +4w - 8 = 4 - 8
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answer

No solution
6 0
4 years ago
Karmen returned a bicycle to Earl's Bike Shop. The sales receipt showed a total paid price of $211.86, including the 7% sales ta
MakcuM [25]

Answer:

$198

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198x.07=13.86

198+13.86=211.86

7 0
4 years ago
Which methods could you use to calculate the y-coordinate of the midpoint of a vertical line segment with endpoints at (0, 0) an
Tcecarenko [31]
The y-coordinate of the midpoint of a line segment is the average of the y-coordinates of the endpoints of the line segment.

This is: call y1 the y-coordinate of one endpoint and y2 the y-coordinate of the other endpoint of the line segment, then the midpoint is [y1 + y2] / 2.

The method, then, is to add the two y-coordinates and divide by 2.

For the vertical line segment with endpoints  (0,0) and (0,15) theprocedure is [0 + 15] / 2 = 15/2 = 7.5, and the result is 7.5
4 0
3 years ago
500 $89 at Amazon at Walmart it's $477.89 what is the difference
True [87]

Answer:

$23.

Step-by-step explanation:

Cost at Amazon = $500.89

Cost at Walmart = $477.89

To find the difference between the its in cost at Amazon to cost at Walmart.

Difference = $500.89 – $477.89

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Hence the difference between the cost at Amazon to cost at Walmart is $23.

3 0
3 years ago
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