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Strike441 [17]
3 years ago
5

What value of x makes the equation true? 15(2x−10)+4x=−3(15x+4)

Mathematics
1 answer:
muminat3 years ago
5 0

Answer:

x = 1.74

Step-by-step explanation:

It is required to find the value of x in the following equation :

15(2x-10)+4x=-3(15x+4)

Firstly, it is required to solve brackets such that,

30x-150+4x=-45x-12

Collecting variable on one side and constants on another side.

30x+4x+45x=150-12      

79x=138

Dividing both sides by 79 such that,

x=\dfrac{138}{79}\\\\x=1.74

So, the value of x = 1.74.

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How many rows of seats are needed to seat 673 people at a concert when the rows seat 37 people each?
Rasek [7]

Answer:

18.189 rows

Step-by-step explanation:

673 / 37 = 18.189189189

Hope this helps!

5 0
3 years ago
Evaluate |-11| + |-7|.<br><br> -18<br> -4<br> 4<br> 18
Marta_Voda [28]

Answer:  D) 18

======================================================

Explanation:

|-11| simplifies to 11

|-7| simplifies to 7

Whatever is inside the absolute value, you just remove the negative and that's the result of that absolute value expression. It represents the distance on a number line. So for instance -11 is 11 units from 0, which is why |-11| = 11.

Overall,

|-11| + |-7| = 11 + 7 = 18

4 0
3 years ago
If he devotes all of his available resources to cantaloupe production, a farmer can produce 120 cantaloupes. If he sacrifices 1.
sp2606 [1]

Answer:

C. His opportunity cost of one watermelon is 2/3 of a cantaloupe.

c. Fewer households can afford luxury imports

Step-by-step explanation: Opportunity Cost is an economic term used to describe the benefits or profits which a person or an investor gives up in order to make choice between alternatives.

Recession is a term used in economics to refer a state of decline in the general productive economic activities of a country or an economy, it is also the state of an economy where the Gross domestic product (GDP) growth is in the negative.

8 0
3 years ago
Read 2 more answers
Adding negative numbers<br> 5+ (-4) =
anygoal [31]

Answer:

1

Step-by-step explanation:

Follow the signs rule:

IF:

There is a + sign, and the number directly next is +, add

There is a + sign, and the number directly next is -, subtract

There is a - sign, and the number directly next is +, subtract

There is a - sign, and the number directly next is -, add

In this case, there is a plus sign, and a negative sign, therefore, subtract:

5 + (-4) = 5 - 4 = 1

1 is your answer.

~

5 0
3 years ago
3 power 1+x + 3 power 1-x = 9
Rus_ich [418]
I have no clue I just need to answer some questions before I can ask my own again lol
6 0
3 years ago
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