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3 years ago

Please help needs turned in

Mathematics

1 answer:

Alecsey [184]3 years ago

4 0

When you have

$4x=\dfrac{2}{5}$

you can solve the equation by multiplying both sides by 1/4. Then simplify.

$4x\cdot\dfrac{1}{4}=\dfrac{2}{5}\cdot\dfrac{1}{4}\\\\x\cdot\dfrac{4}{4}=\dfrac{2\cdot 1}{5\cdot 4}\\\\x=\dfrac{2}{20}=\dfrac{1}{10}$

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For each equation given complete the table and then use the points in your table to sketch the graph of the equation, Only #1

zloy xaker [14]

Answer:FOR THE FIRST TABLE ON THE LEFT

X____Y

-2 1/4

-1 1/2

0 1

1 2

2 4

FOR THE SECOND GRAPH TO THE RIGHT IS

X________Y

-2 1/9

-1 1/3

0 1

1 3

2 9

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If someone could work out the first half of the problem and explain that would be great!

andrew-mc [135]

Answer:

x = -5

y = -5

Step-by-step explanation:

If you multiply the top equation by negative 2, you can add it to the bottom equation and cancel out the x:

-2(-x + 5y = -20) --> 2x - 10y = 40

Add this to the bottom equation top to bottom:

2x - 10y = 40

-2x + 4y = -10

You get:

-6y = 30

Then solve for y:

y = -5

Plug this back in for either equation and solve for x:

-x + 5(-5) = -20

-x -25 = -20

-x = 5

x = -5

Your answers are:

x = -5

y = -5

7 0

3 years ago

Read 2 more answers

Select all the points that are on the graph of the line 2x + 4y=20 a.)(0.5) b. (0,10) c. (1,2) d.) (1,4) e.) (5,0) f. (10,0)

zmey [24]

Answer:

(0,5) and (10,0)

Step-by-step explanation:

The equation of the straight line is given by 2x + 4y = 20 .......... (1)

Now, point (0,5) satisfies the equation (1) as putting x = 0, we will get y = 5.

Now, point (0,10) does not satisfy the equation (1) as putiing x = 0, we get y = 5 ≠ 10

Again, point (1,2) does not satisfy the equation (1) as putiing x = 1, we get y = 4.5 ≠ 2

Now, point (1,4) does not satisfy the equation (1) as putiing x = 1, we get y = 4.5 ≠ 4

Again, point (5,0) does not satisfy the equation (1) as putiing y = 0, we get x = 10 ≠ 5

Finally, point (10,0) satisfies the equation (1) as putiing y = 0, we get x = 10 .

Therefore, only points (0,5) and (10,0) are on the graph of the line 2x + 4y = 20 (Answer)

8 0

3 years ago

Following a group of truck drivers and noting the number of miles traveled for one year refers to which type of statistical stud

maria [59]

Considering that the data is only noted and not changed, this is an example of an observational study.

<h3>What are observational and experimental studies?</h3>

Experimental study: In an experimental study, there is an intervention in a sample, and it's effect is studied.

Observational study: In an observational study, the sample is just analyzed, without any intervention.

In this problem, the data, which is the number of miles traveled, is only analyzed, no interventions are made, hence this is an example of an observational study.

More can be learned about observational studies at brainly.com/question/24321224

#SPJ1

6 0

2 years ago

Billy looks through holiday brochure in Spain, Greece,Italy and UK.

Alenkasestr [34]

Answer:

Assuming you want to know there was for UK it was $\frac{3}{8}$

Step-by-step explanation:

Let's add the fractions together

$\frac{1}{3} +\frac{1}{6}+\frac{1}{8\\}\\\frac{8}{24} +\frac{4}{24} +\frac{3}{24} =\frac{15}{24}$

The remainder is the amount in UK so

$\frac{24}{24} -\frac{15}{24} =\frac{9}{24} \\$

Simplified it's $\frac{3}{8}$

7 0

3 years ago