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nasty-shy [4]
2 years ago
11

The sum of a number X and 1/2 equal to four which set of equations correctly represents X

Mathematics
1 answer:
tamaranim1 [39]2 years ago
4 0

Answer:

D. 3 1/2

Step-by-step explanation:

Sum means addition (+)

Sum of a number, x and 1/2=4

This means the addition of the two numbers

x+1/2=4

Make x the subject of formula

x=4-1/2

Finding the L.C.M

= 8-1/2

x=7/2

x=3 1/2

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2 years ago
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(02.02)Angle X measures 110 degrees. If angle X is rotated 60 degrees, what is the measure of angle X'? 00 degree O 60 degrees 0
alisha [4.7K]

Answer: 110 degrees

Step-by-step explanation:

Rotations are rigid motions and thus preserve angle measure.

3 0
2 years ago
Insert a digit to make numbers divisible by six possible
Kipish [7]

Lets say our number is 237x8

2+3+7+8+x should be divisible by 6.

20+x should be divisible by 6.

x=4

5 0
2 years ago
Some students are working together to draw a picture of a playground.
vodomira [7]

From the information provided by the statement, you know that

*Ann draws 2/16 of the playground

*Susan draws 6/16 of the playground because she draws 3 times as much as Ann so

3\cdot\frac{2}{16}=\frac{3}{1}\cdot\frac{2}{16}=\frac{6}{16}

*Louise draws 3/16 because she draws half as much as Susan, so

\frac{1}{2}\cdot\frac{6}{16}=\frac{6}{32}=\frac{2\cdot3}{2\cdot16}=\frac{3}{16}

*Sam draws 2/16 because she draws 1 less section than Louise

\frac{3}{16}-\frac{1}{16}=\frac{2}{16}

Now, let x be the fraction of the playground that still needs to be drawn. Then, you have

\begin{gathered} \frac{2}{16}+\frac{6}{16}+\frac{3}{16}+\frac{2}{16}+x=\frac{16}{16} \\ \text{ Add similar terms} \\ \frac{13}{16}+x=\frac{16}{16} \\ \text{ Subtract }\frac{13}{16}\text{from both sides of the equation} \\ \frac{13}{16}-\frac{13}{16}+x=\frac{16}{16}-\frac{13}{16} \\ x=\frac{3}{16} \end{gathered}

Therefore, 3/16 of the playground still needs to be drawn.

5 0
1 year ago
A and B are two events.
Burka [1]

Answer:

Not independent.

Step-by-step explanation:

Given that P(A)=0.25 , P(B)=0.2 , and P(A and B)=0.04

To check whether A and B are independent.

Two events are independent if

P(A/B) = P(A) or P(B/A) = P(B) or P(AB) = P(A) P(B)

if any one of the above three is true also, the two events would be independent.

Let us find out first one

P(A/B ) = P(AB)/P(B) (as per conditional probability formula)

= 0.04/0.2=0.2

But P(A) = 0.25 and not equals P(A/B)

Hence we can conclude that A and B are not independent

because P(A/B) not equals P(A)


6 0
2 years ago
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