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Yuri [45]
3 years ago
7

If x = -6,which inequiality is true

Mathematics
1 answer:
zimovet [89]3 years ago
7 0

The only equation that works with x=-6 is A

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Use the elimination method to solve the system of equations.<br><br>3x-5y= -16<br><br>2x+5y=31
Sholpan [36]
5x = 15
x = 3

3(3) - 5y = -16
9 - 5y = -16
5y = -16 - 9
5y = - 25
y = - 5

(3, -5)
8 0
3 years ago
Translate the following into an algebraic expression: A number is 30% of 20% of the number x.
bezimeni [28]

Answer: 0.06x

Step-by-step explanation:

  • An algebraic expression is an expression consist of integer constants, variables, and algebraic operations.

The given statement:  A number is 30% of 20% of the number x.

The required algebraic expression would be:

30% of 20% of x

=\dfrac{30}{100}\times \dfrac{20}{100}\times x  [we divide a percentage by 100 to convert it into decimal]

=\dfrac{6}{100}\times x\\\\=0.06x

Hence, the required algebraic expression would be :

0.06x

4 0
3 years ago
Alonso goes on a kayaking trip that costs $50. At the end, he wants to tip the guide 15%. How much will the tip be?
xeze [42]

Answer:

I believe that the tip would be $7.50

Step-by-step explanation:

Well I'm assuming that they want us to find 15% of 50. And 15% of 50 is 7.5

Meaning that the answer is A

8 0
2 years ago
Read 2 more answers
Stella rewrites −212+3.7 as 3.7−212. Which property did she use? A. Additive Identity Property B. Additive Inverse Property C. C
lyudmila [28]

Answer:

Option C.

Step-by-step explanation:

It is given that Stella rewrites −212+3.7 as 3.7−212.

We need to find which property did she use.

According to commutative property of addition,

A+B=B+A

Where, A and B are any real values.

In the given expression −212+3.7, A=-212 and B=3.7.

Using commutative property of addition, we get

(-212)+3.7=3.7+(-212)

(-212)+3.7=3.7-212

So, she used commutative property.

Therefore, the correct option is C.

5 0
3 years ago
Use complete sentences to describe why for any set B, that the empty set would be a subset of it.
ella [17]
Because empty set has no element which automatically make it a subset of every set. 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
6 0
3 years ago
Read 2 more answers
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