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gizmo_the_mogwai [7]
3 years ago
12

I need some help with these 4 questions

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
8 0

Answer:

4

Step-by-step explanation:

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Can you guys help me?​
kumpel [21]

Answer:

Step-by-step explanation:

1. y = 2x

       y = 2*4 = 8  Checks, therefore

y = 20  for x = 10

2. y = 3x

       y = 3*(0.3) = 0.9  Checks, therefore:

y =  3*(1.5) = 4.5  

       y = 3*

3. y = 5/x

       y = 5/(1/2) = 10  Checks, therefore:

       3 = 5/x

x = 5/3

4 v = wu

7*3 = 21  Checks, therefore:

v =  (3/4)*(6) = (18/4) = (9/2)

v = (2/3)wu

v = (2/3)*7*3 = 14 Checks

5 m = Kn/p  [Add the K as a constant that will make m = Knp true at some value of K]

9 = K*2/(1/3)

27 = (K*2)

27 = 2K

K = (3/2)

       m = (3/2) (n/p)

       m = (3/2)*((1/2)/(1/3))

        m = (3/2)*(3/2)

        m = 1

   

7 0
3 years ago
Please help!!!!!!!! thank you so so much
Setler79 [48]
137.1

You would find the area of the semi circle by using the circle formula and dividing by 2, which would be 8

Then find the area of the rectangle, which would be 112. 
3 0
3 years ago
2.13 x 10^24 molecules of water is how many moles of water?
pishuonlain [190]

Answer:

1 mole of anything = 6.023 * 10^23

2.13 * 10^24 divided by 6.023 * 10^23 =

3.54 moles

Step-by-step explanation:

5 0
3 years ago
Twenty-four students took a test. Fourteen students earned an A and 8 students earned a B. A student will be randomly chosen.
vladimir1956 [14]
14/22

14+8=22

14--students with A
3 0
3 years ago
What is -10=10(k-9) plz??
Sever21 [200]
-10=10(k-9)
so,
-10=10k-90
that is just expanding the brackets by multiplying to k and-9
then.
-10=10k-90
move the-90 over by adding 90
so, 80=10k
k =80/10
k=8
4 0
3 years ago
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