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worty [1.4K]
2 years ago
6

The elves and reindeer are getting ready for a meeting with Santa.

Mathematics
1 answer:
Feliz [49]2 years ago
3 0

Let e and r be the number of elves and reindeers, respectively.

We know that:

r+e=14 (so far 14 of them have arrived)

4r+2e = 38(each reindeer has 4 legs and each elf has two)

If we multiply the first equation by 2 we have 2r+2e=28, and if we subtract this equation from the second we have 2r=10 which implies r=5.

So, there are 5 reindeers and 9 elves (remember that they have to sum up to 14).

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You are driving on a freeway with a posted speed of 65 mph. Nearly all of the cars are traveling between 35 and 40 mph. What wou
marissa [1.9K]

30 mph would be a safe speed for you to drive.

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A pedestrian has a 90 percent threat of survival if hit by a vehicle transferring at 30 km ph (18.64 mph). This decreases to 70 percent at 40 kmph (24. eighty five mph) and much less than 20 percent at 50kmph (31 mph). driving at decreased speeds also enables drivers to stop within a shorter distance.

Retaining high speeds on highways is straightforward, as roads are wider and traffic is usually mild. If there are signs that show a pace restriction of 80kph, use them as a guide and stick near them. it's also an excellent exercise to assess road situations and set your pace thus.

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3 0
2 years ago
Find the value of X. What is x and how do you solve for y first.
11111nata11111 [884]

Answer:

id.k but i hope this wuote helps u have a great day :) :)

Step-by-step explanation:

Everything will be okay in the end. If it’s not okay, it’s not the end

Have a nice day :) :) :)

5 0
3 years ago
Which lines are parallel to 8x + 4y = 5? Select all that apply.
Dvinal [7]

Answer:

A , B , C

Step-by-step explanation:

1) find the slope of the given line

slope = (-a/b) = (-8/4) = -2

two parallel lines have the same slope

A : correct

B : (-a/b) = -16/8 = -2 (correct)

C : correct

D : wrong (2 is different from -2)

5 0
3 years ago
Read 2 more answers
A grocer has two kinds of tea: one selling for 80 cents a pound and the other selling for 60 cents a pound. How many pounds of e
goblinko [34]

Answer:

35 pounds of tea for 80 cents.

Step-by-step explanation:

Equation::

value + value = value

80x + 60(50-x) = 74*50  

80x + 60*50 - 60x = 74*50  

20x = 14*50

x = 35 lbs (amt. of 80 cent tea to use)

50-x = 15 lbs (amt. of 60 cent tean to use)

4 0
3 years ago
Read 2 more answers
What is the value of u and v?
Novay_Z [31]

Answer and Explanation:

Since this is an isosceles right triangle, you can use the ratio of side lengths specific to this type of triangle where both legs are the hypotenuse over root 2:

u = v = 164√2 / √2 = 164

so:

u = 164

v = 164

3 0
2 years ago
Read 2 more answers
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