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Marizza181 [45]
3 years ago
7

When I think of a number, double it, then add 7, I get 25. What number did I think of? ( Hint: Let the number be x)o

Mathematics
2 answers:
Alexus [3.1K]3 years ago
7 0

Answer:

X = 9

Step-by-step explanation:

If you take 9, then double it, you get 18. 9+9 = 18. Then, you would add 7. 18 plus 7 is 25.

Hence, the answer to this problem is 9.

vivado [14]3 years ago
3 0

Hey there!

The answer is 9

We will start by forming an equation to solve this.

So we are starting with a number, x, then doubling it and adding 7, which gives us 25.

So:

2x+7=25

Now we solve this equation:

2x+7=25

2x=18

x=9

Have a super awesome day!

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6(3w+5)+6(3w+2)?<br><br><br><br> a<br> n<br> s<br> w<br> e<br> r
baherus [9]

Answer:

36x+42 if you need it simplified

x=-7/6 if you set the equation equal to zero

8 0
3 years ago
Read 2 more answers
The sum of 237 and six times the opposite of a number is 405. What is the number?
IgorC [24]
The number is 28.

The equation would be:

237 + 6(x) = 405

The problem states that 6 times the opposite of a number, however, since the number sign was not given, we do not know whether it is in a positive or negative form. So we leave it as only x.

237 +  6x = 405
6x = 405 - 237
6x = 168
6x / 6 = 168 / 6
x = 28

To check:

237 + 6 (28) = 405
237 + 168 = 405
405 = 405
8 0
3 years ago
Read 2 more answers
Andres went out to a restaurant for dinner. His total bill before tax and tip was $27.30. He was charged an additional 9% tax an
Fofino [41]

Answer:

$25.66

Step-by-step explanation:

Given data

Total Bill before tax and tip= $27.30

Tax= 9%

Tip= 15%

Let us find the tax

=9/100*27.30

=0.09*27.30

=$2.457

Let us find the tip

=15/100*27.30

=0.15*27.30

=$4.095

Therefore his bill after tax and tip is

=27.30+2.457-4.095

=$25.66

4 0
3 years ago
Can someone help me with this?? TwT
vazorg [7]
It does matter, the second inequality would be correct because it list that when n is inputted it can be 28 or greater. However, in the first inequality it states that when n is inputted it has to be greater then 28 but cannot be 28.
7 0
3 years ago
Read 2 more answers
How did I get the answer to these two problems
saveliy_v [14]
You already have the answer
6 0
3 years ago
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