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Pepsi [2]
3 years ago
7

George and Davon begin their hike at 9 a.m. one morning. They plan to hike from the 2 1/5 -mile marker to the 9 1/15 -mile marke

r along the trail. They plan to hike at an average speed of 2 miles per hour. Will they reach the 9 1/15 -mile marker by noon? Explain your reasoning.
Mathematics
1 answer:
vredina [299]3 years ago
7 0
Yes because when your multiply every thing together you’ll have 9/15 miles
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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the eq
telo118 [61]
Yes it’s 8 and 72 it’s going to be 72 and 7
5 0
3 years ago
A system for tracking ships indicated that a ship lies on a hyperbolic path described by 5x2 - y2 = 20. the process is repeated
zysi [14]
Answer:
The ship is located at (3,5)

Explanation:
In the first test, the equation of the position was:
5x² - y² = 20 ...........> equation I
In the second test, the equation of the position was:
y² - 2x² = 7 ..............> equation II
This equation can be rewritten as:
y² = 2x² + 7 ............> equation III

Since the ship did not move in the duration between the two tests, therefore, the position of the ship is the same in the two tests which means that:
equation I = equation II

To get the position of the ship, we will simply need to solve equation I and equation II simultaneously and get their solution.

Substitute with equation III in equation I to solve for x as follows:
5x²-y² = 20
5x² - (2x²+7) = 20
5x² - 2y² - 7 = 20
3x² = 27
x² = 9
x = <span>± </span>√9

We are given that the ship lies in the first quadrant. This means that both its x and y coordinates are positive. This means that:
x = √9 = 3

Substitute with x in equation III to get y as follows:
y² = 2x² + 7
y² = 2(3)² + 7
y = 18 + 7
y = 25
y = +√25
y = 5

Based on the above, the position of the ship is (3,5).

Hope this helps :)
8 0
3 years ago
Acompany makes toy plastic soccer balls each with a radius of 3 inches. How many square inches of plastic does the
drek231 [11]

Answer:

i think it number 1 113.0 in

3 0
3 years ago
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Nookie1986 [14]
C, always go with supervisors 

6 0
3 years ago
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In a hospital there are 56 TB patients. The patients are grouped with respect to their ages.
zalisa [80]
<span>Table:

Class Boundaries         Frequency

5-10                              8

10-15                            9

15-20                          15

20-25                          10

25-30                           8

30-35                           6
                                ----------
total                           56

Average =

[5+10]/2*8+[10+15]/2*9+[15+20]/2*15+[20+25]/2*10+[25+30]/2*8+[30+35]/2*6
---------------------------------------------------------------------------------------------------
</span>                                                      56

That is 1075 / 56 = 19.2

Answer: 19

5 0
3 years ago
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