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Maru [420]
3 years ago
15

How do you do these 2 problems?

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0
The first question:
3X+Y=-1
Y=-3X-1     Y=-1/2X-7/2
-3X-1=-1/2X-7/2
-2.5X=-2.5
x=1
So the answer should be option B.
The last question:
Same thing , 
-1/2X-1=-3X+4
2.5X=5
X=2
So the answer is option B.
Those are your answers.

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lutik1710 [3]
Hamid's normal weight is 80 kg.
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3 years ago
You are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this
mina [271]

Answer:

negative relationship.

Step-by-step explanation:

An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).

This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.

Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).

A negative relationship or correlation can be defined as the relationship between two variables in which there exist an inverse relationship between them i.e as one variable increases, the other decreases and vice-versa.

In this scenario, you are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this observation, you conclude that there is a negative relationship between the temperature and hot beverage sales at this coffee shop because for the temperature to get colder it would decrease and for the hot beverages to be hot, its temperature must be increased.

7 0
3 years ago
F(x) = -x - 3 Find f(-4) f(-4) = -(-4) -3
skelet666 [1.2K]

Answer:

\boxed{ \bold{ \boxed{ \sf{f( - 4) = 1}}}}

Step-by-step explanation:

Given, f ( x ) = - x - 3

Let's find the value of f ( - 4 )

\sf{f( - 4) =  - ( - 4) - 3}

We know that , ( - ) \times ( - ) = ( + )

⇒\sf{ 4 - 3}

Subtract 3 from 4

⇒\sf{1}

Hope I helped!

Best regards!!

5 0
3 years ago
Caleb's monthly bank statement showed the following deposits and withdrawals:
Crazy boy [7]

Answer:

$174.72

Step-by-step explanation:

105.88+43.50+36.61+92.78-38.19-65.86=174.72

6 0
3 years ago
What is the answer to 5/8 1/4?
Aleksandr [31]
5 × 1. = 5
_ × _. = _
8 × 4. = 32


5/32
4 0
3 years ago
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