3 years ago

If a×b÷2=a÷2 then b =

Mathematics

1 answer:

lbvjy [14]3 years ago

8 0

If a×b÷2=a÷2 then b = 1

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What is the solution of StartRoot x + 2 EndRoot minus 15 = negative 3?

Brilliant_brown [7]

Answer:

x = 142

Step-by-step explanation:

The problem;

$\sqrt{x+2} - 15 = -3$

Inverse operations;

$\sqrt{x+2} -15 = -3\\ +15 +15\\\\\\\\\sqrt{x+2} = 12\\\\$

Now undo the square, by squaring both sides;

$\sqrt{x+2} = 12\\.^{2} \\\\\\ \\x+2 = 144$

Inverse oeprations;

x + 2 = 144

-2 -2

x = 142

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3 years ago

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Six times a number plus 4 is the same as the numver minus 11

Brrunno [24]

6xn+n-11 so n=6

6x6=36+6=42-11 is 31

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3 years ago

If the length of JK is 3x and the length of LM is 12x and the length of the entire line JM is 25x , find the length of KL.

Leona [35]

Answer:

10x.

Step-by-step explanation:

It is given that,

JK = 3x

LM = 12x

JM = 25x

Let as consider the line as shown in the below figure.

From the figure it is clear that,

$JK+KL+LM=JM$

$3x+KL+12x=25x$

$KL+15x=25x$

$KL=25x-15x$

$KL=10x$

Therefore, the length of KL is 10x.

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3 years ago

Helpppppppppppooooo :p

garri49 [273]

Answer:

1) c. 10

2) a. 1 and 18

3) d. 17

4) I think it's actually 12 but I don't know

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3 years ago

The ratio of the number of peas Julia had to the number of peas Vlada had was 3:2. After Julia gave Vlada 15 peas, she still had

inn [45]

J:V = 3:2

3:2 x 40 = 120:80

J: 120-15 = 105
V: 80+15 = 95

J:V is now 105:95

The original amount of peas that Julia had at first was 120.

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3 years ago

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If a×b÷2=a÷2 then b =​

If a×b÷2=a÷2 then b =