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Llana [10]
3 years ago
7

The sum of twice a number and seven

Mathematics
1 answer:
sergejj [24]3 years ago
7 0

Answer:

2x+7

Step-by-step explanation:

The word sum indicates addition.

Twice a number is 2x

and 7 is plus 7

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Can Some one please help me on these math questions<br><br>I'll give 20 points please
MArishka [77]

Answer:

☐ -2 < 2x + 4

☐ -3x - 2 > 5

Step-by-step explanation:

-3x - 2 > 5

+ 2 + 2

___________

-3x > 7

___ ___

-3 -3

x < -2⅓ [Anytime you <em>divide</em> or <em>multiply</em> by a negative, reverse the inequality symbol.]

-2 < 2x + 4

-4 - 4

___________

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__ ___

2 2

-3 < x

If you plug in -3 for <em>x < -2</em><em>⅓</em><em>,</em><em> </em>you will see that it is a genuine statement because the more higher a negative gets, the lesser the integer will be, so in this case, -3 IS <em>less</em><em> </em><em>than</em><em> </em>-2⅓.

I am joyous to assist you anytime.

** If it is not multi-select, then choose <em>-2 < 2x + </em><em>4</em><em>.</em>

4 0
3 years ago
10 – 2v = -5v – 50 what is V
Virty [35]
I think it’s v=-20 i showed you my work if that helps :)

4 0
3 years ago
Philip wants to know the weight of a book to within half a gram. His weighing scales only weigh to within 10 grammes.
Andrei [34K]

Answer:

f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)

Step-by-step explanation:

8 0
3 years ago
Please answer tomorrow is my exam please​
Illusion [34]

Answer:

i dont know sorry.

Step-by-step explanation:

Do it yourself ;)

4 0
3 years ago
I need to find a number that the "n" represents. The problem is 9/12=n/32
likoan [24]

The given equation is

\frac{9}{12} = \frac{n}{32}

Here we have to solve for n. First we need to get rid of the denominators and for that we do cross multiplication .

9*32 = 12n

Now we need to isolate n. And for that we need to get rid of 12, by dividing both sides by 12

\frac{9*32}{12}=n

\frac{288}{12} =n

n=24

And that's the required value of n .

8 0
3 years ago
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