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2 years ago

The sum of eight and twice a number is 42

Mathematics

1 answer:

saveliy_v [14]2 years ago

4 0

Answer:

8 + 2n = 42

Step-by-step explanation:

the sum of eight: ___+ 8

and twice(2) a number(could be any variable but for now i choose n): 2n + 8

is 42 (literally mean it equals 42): 2n + 8 = 42

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What is mKNL? Enter your answer in the box.

sergejj [24]

Answer:

102°

Step-by-step explanation:

As the vertically opposite angles are equal,

$5x+2={3(x+14)$

Now let's solve for x now

$5x+2=3(x+14)\\$

$5x+2=3x+42$

$5x-3x=42-2$

$2x=40$

$\frac{2x}{2} =\frac{40}{2}$

$x=20 \\$

Now let's find the value of KNL

$3(x+14)\\3(20+14)\\3*34\\102$

Hope this helps you.

Let me know if you have any other questions ;-)

5 0

2 years ago

The difference of a number x and 4 is 3

Kruka [31]

"the difference of a number x and 4": x - 4
"is": =
"3": 3

Combine the terms so that it looks like the sentence numerically:

"the difference of a number x and 4 is 3": x - 3 = 4

x - 3 = 4 is your answer.

To solve for x:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Add 3 to both sides.

x - 3 = 4

x -3 (-3) = 4 (-3)

x = 4 - 3

x = 1

1 is your answer for x.

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6 0

3 years ago

Is 5 equal to -5 in math

elena-14-01-66 [18.8K]

Answer: No

Step-by-step explanation: If it is talking about the reciprocal then yes. Reciprocal is the opposite of your number.

Example: -4 IS 4 reciprocal.

6 0

2 years ago

Read 2 more answers

Please help w these I’m not too sure

Nataly_w [17]