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solmaris [256]
3 years ago
9

the building manager put new door knobs on 4 doors in each apartment there are 3 apartments on each floor and 3 floors in the ap

artment building how many new door knobs did he install
Mathematics
1 answer:
barxatty [35]3 years ago
6 0
(4) x (3) x (3)= (12) x (3)= 36
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Otrada [13]
It’s a ushndu hahaha hahaha Han shxvdbck dhuddj
5 0
3 years ago
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For a daily airline flight between two cities, the number of pieces of checked luggage has a mean of 380 and a standard deviatio
Olegator [25]
<span>Since one standard deviation is 20 luggages, 3 standard deviations above the mean is 3*20=60 luggages above the mean of 380 luggages, so 60+380 gives the answer C, 440.</span>
3 0
3 years ago
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Liliana use for dark power crystals to raise 14 zombie soldiers she wants to know how many zombie soldiers Z she can race with 1
laiz [17]

Answer:

140 zombies

Step-by-step explanation:

Since this is a proportions problem and we are given three values and a variable we must solve for which is the number of zombie soldiers she can raise (z) with 10 dark power crystals. Therefore, we can use the rule of three to solve for this, in which we multiply the diagonal values and divide by the last remaining value in order to solve for the variable like so...

1 crystal <===>  14 zombies

10 crystals  <===>   Z zombies

(10 * 14) / 1 = 140 zombies

4 0
2 years ago
I need help with number 19
inysia [295]
Let's start by understanding that the graph is a linear line. We have a common difference if 4.5 for every 10x we have more.

We can start by finding the gradient, using rise over run. Let's take (10, 4.5) and (20, 9)

Our rise is 9 - 4.5 = 4.5 and our run is 10. Then, our gradient becomes 4.5/10 = 0.45

Now, we can substitute points using the point-slope form.

y - 4.5 = 0.45(x - 10)
y - 4.5 = 0.45x - 4.5
Hence, our line becomes y = 0.45x and you can verify by substituting in points from the table.
4 0
3 years ago
PLEASE HELP PLEASE PLEASE TYY
Alex17521 [72]

Answer:

#2. 1 = 50° 3 = 50° 4 = 130°. 2. ∠3=137°

 

6 0
3 years ago
Read 2 more answers
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