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marishachu [46]
3 years ago
13

Which rational number equals 0.4? A. 2 over10 B. 2 over 9 C.4 over 10 D.4 over 9

Mathematics
2 answers:
kotegsom [21]3 years ago
5 0

Answer:

Answer C (4 over 10)

Step-by-step explanation:

A) 2 over 10 or 2/10 equals 0.2, therefore it is wrong

B) 2 over 9 or 2/9 equals 0.222..., therefore it is wrong

C) 4 over 10 or 4/10 equals 0.4, therefore it is <u>correct</u>

D) 4 over 9 or 4/9 equals 0.4444...,therefore it is wrong

Allisa [31]3 years ago
3 0

Answer:

C. 4/10

Step-by-step explanation:

a. 2/10 = 0.2

b. 2/9=0.2222...

c. 4/10=0.4

D. 4/9=0.4444...

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2 over 9 divided by 4
bagirrra123 [75]

Answer:

1/18 or 0.05

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the value of h in the equation 8h = 60
irga5000 [103]

Answer:

h= 7.5

Step-by-step explanation:

8h=60

One solution was found :

                  h = 15/2 = 7.500

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    8*h-(60)=0

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  8h - 60  =   4 • (2h - 15)

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

2.1      Solve :    4   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

2.2      Solve  :    2h-15 = 0

Add  15  to both sides of the equation :

                     2h = 15

Divide both sides of the equation by 2:

                    h = 15/2 = 7.500

One solution was found :

                  h = 15/2 = 7.500

Processing ends successfully

7 0
3 years ago
Read 2 more answers
Twelve friends came to Guy's birthday party. He received seven gifts and a total of $95 in cash for his birthday. He buys an air
anastassius [24]
Hey!

Ignore the birthday party stuff and go to 95 first. Subtract 9 from 95 you get the answer 86. Next you need to find how many times 8 goes into 86. 86/8 which is 10 with a remainder of 6. Therefore, Guy can donate to 6 animal shelter. I hope this helps with future problems.
           

5 0
2 years ago
Physics! Someone help me! Its due today please!
icang [17]

Step-by-step explanation:

We have,

Mass of ball is 9 kg

Initial speed, u = 5 m/s

Final speed, v = -2 m/s (negative as it bounces off)

(a) The change in velocity of the bowling ball is :

\Delta v=v-u\\\\\Delta v=-2-5\\\\\Delta v=-7\ m/s

(b) Change of momentum of the ball is :

p=m\Delta v\\\\p=90\times (-7)\\\\p=-630\ kg-m/s

|p| = 630 kg-m/s

(c) Impulse momentum theorem states that the change in momentum of the ball is equal to the impulse exerted on the ball. So, impulse is 630 kg-m/s.

(d) Impulse is also given by :

J=F\times t\\\\F=\dfrac{J}{t}\\\\F=\dfrac{630}{0.3}\\\\F=2100\ N

6 0
3 years ago
What is the perimeter of quadrilateral ABCD with verticals at A(-11,-6) b(-3,0) c(1,0) and d (1,-6)
dedylja [7]

<u>Answer:</u>

32 units

<u>Step-by-step explanation:</u>

We have a quadrilateral ABCD and we are given the following coordinates for these vertices:

A (-11,-6)

B (-3,0)

C (1,0)

D (1,-6)

AB = \sqrt{(0-(-6))^2+(-3-(-11)^2} = \sqrt{36+64} =\sqrt{100} = 10 units

BC = \sqrt{(0-0)^2+(1-(-3)^2} = \sqrt{0+16} =\sqrt{16} = 4 units

CD = \sqrt{(0-(-6))^2+(1-1^2} = \sqrt{36+0} =\sqrt{36} = 6 units

AD = \sqrt{(-6-(-6))^2+(1-(-11)^2} = \sqrt{0+144} =\sqrt{144} = 12 units

Perimeter of ABCD = 10+4+6+12 = 32 units

6 0
3 years ago
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