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patriot [66]
3 years ago
13

5. Heathcliff found a road map showing the driving route to a resort that he knows Gertrude enjoys. The map shows a roadway, sta

rting from Heathcliff's position, that goes 8 miles north, 5 miles east, 7 miles north and finally 3 miles east. How many miles will be saved if Heathcliff and Gertrude fly directly to the resort?
Mathematics
2 answers:
tigry1 [53]3 years ago
8 0
\sqrt{ (8+7)^{2} +(5+3)^{2} } =17.
the answer is 17 miles
Kipish [7]3 years ago
4 0

Answer: 6 miles will be saved.

Step-by-step explanation:

The total distance that he traveled is: 8 miles + 7 miles =15 miles to north.

And 5 miles + 3 miles = 8 miles to east.

Then the total distance is 15 miles + 8miles = 23 miles

If they did the direct path, the hipotenuse of a triangle with sides of 15miles and 8 miles, the distance would be:

D = √(15^2 + 8^2) = 17 miles

And the difference is equal to 23 miles - 17 miles  = 6 miles

So they will save 6 miles if they use a direct path.

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What is the y-value of the solution to the system of equations?
motikmotik

Answer:

{x = -3 , y=2  (Isolved for both variables be elimination)

Step-by-step explanation:

Solve the following system:

{3 x + 5 y = 1 | (equation 1)

7 x + 4 y = -13 | (equation 2)

Swap equation 1 with equation 2:

{7 x + 4 y = -13 | (equation 1)

3 x + 5 y = 1 | (equation 2)

Subtract 3/7 × (equation 1) from equation 2:

{7 x + 4 y = -13 | (equation 1)

0 x+(23 y)/7 = 46/7 | (equation 2)

Multiply equation 2 by 7/23:

{7 x + 4 y = -13 | (equation 1)

0 x+y = 2 | (equation 2)

Subtract 4 × (equation 2) from equation 1:

{7 x+0 y = -21 | (equation 1)

0 x+y = 2 | (equation 2)

Divide equation 1 by 7:

{x+0 y = -3 | (equation 1)

0 x+y = 2 | (equation 2)

Collect results:

Answer:  {x = -3 , y=2

5 0
3 years ago
Read 2 more answers
A recipe calls for 9 1/2 cups of flour to make a batch of cookies. How many batches of cookies can be made if you have 38 cups o
Fiesta28 [93]
Answer : 4

Explanation:

9 1/2 cups of flour makes 1 batch of cookies so make that into a decimal: 9.5

and take 38 divided by 9.5 and you get your answer.
8 0
2 years ago
A=h(a+b)/2 solve for h
OlgaM077 [116]
Well h would equal 2A over a+b
3 0
3 years ago
Round 59.378 to the nearest hundredth.
mamaluj [8]

Answer:

59.38

Step-by-step explanation:

In the number 59.378, "7" is in the hundredth place. So, we need to round it according to the 7. Anything to the left of 7 doesn't need to be rounded. If we round the thousandths place, 8, up to 7, we get 59.38

7 0
3 years ago
Read 2 more answers
Pls help pls, i need this pls help
malfutka [58]

Answer:

Step-by-step explanation: a real one for the points

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2 years ago
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