how do I do the substitution method?

Answers

Answer 1

Step-by-step explanation:

1: Solve one Equation for one of the variables

2: Substitute (plug-in) this expression into the other equation and solve

3: Resubtitue the value into the original equation to find the corresponding variable

Answer 2

Answer:

1. Solve one equation for one of the variables.

2. Substitute (plug-in) this expression into the other equation and solve.

3. Resubstitute the value into the original equation to find the corresponding variable.

Now at first glance, this may seem complicated, but it'll get easier along the way. <3

Done by NeighborhoodDealer


Related Questions

Please Answer I Would Really Appreciate It :)

Answers

Picture doesn’t show up!!

How does the distance of the mouse change every 2 seconds? 0) Every 2 seconds, the distance the mouse travels i___ by __ feet.

Time|. 0|2|4|6
Distance|0|22|44|66

There's the graph please help​

Answers

Answer:

22 feet (if the distance is in feet, and the time in seconds)

Step-by-step explanation:

t = time

d = distance

To see if the mouse's distance is proportional to the time, you divide the distance with the time:

[tex]t_{3}[/tex] = 4

[tex]d_{3}[/tex] = 44

44 / 4 = 11

[tex]t_{4}[/tex] = 6

[tex]d_{4}[/tex] = 66

66 / 6 = 11 (the same as with 44 / 4. This means that the mouse distance and time is proportional)

Every second the mouse travels 11 feet.

And every other second the mouse travels 22 feet. (since (1, 11)*2 = (2, 22))

That may have been confusing, and if you have any questions, don't be afraid to ask them in the comments below!

Have a good day!

Answer:

increases by 22

Find the product
0.037 · 0.26

Answers

0.00962

Explanation: .037 • .26 = 0.00962
0.00962

0.037 • 0.26 = 0.00962

mr stone paid $1750 for a new computer at the apple store, if the sales tax is 7.5% what is the final cost. I have 1881.25 must be rounded to the nearest 100th

Answers

Answer:

$1881.25

Step-by-step explanation:

Final cost of the computer

[tex] = 1750 + 7.5\% \: of \: 1750 \\ \\ = 1750 + 0.075 \times 1750 \\ \\ = 1750 + 131.25 \\ \\ = \$ 1,881.25[/tex]

I need this please help me

Answers

No, the two-way frequency table does not support the following statement because 13 middle school students wear glasses and 20 high school students wear contacts.

Jason ran 2 3/4 miles in 2/5 of an hour. How far can jason run in one hour

Answers

Answer:

6 7/8 miles per hour

Step-by-step explanation:

2 3/4 ÷ 2/5

change mixed number into improper fraction; 2 3/4 = 11/4

when dividing fractions, multiply by the reciprocal of the second fraction

11/4 ÷ 2/5  =  11/4 · 5/2  =  55/8 or 6 7/8 mph

6(y-12) someone please help

Answers

Answer:

-6y

Step-by-step explanation:

6 - 12 = -6

-6 * y = -6y

Hope this helps :)

Answer:

6y-72

Step-by-step explanation:

Is the following number rational or irrational?
0.7
Choose 1 answer:
A
Rational
B
Irrational

Answers

Answer:

it is rational cause it can be turned into a fraction 0.7= 7/10

QUESTION IS IN THE PICTURE, PLEASE HELP!!​

Answers

Answer:

The median is 5, mode is 5, and range is 12

Step-by-step explanation:

Answer:

MEDIAN - 5

MODE - 2 (4times)

RANGE - 13-1=12 (12 is the range)

Step-by-step explanation:

MEDIAN - Arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.

MODE - The mode is the element that occurs most in the data set. In this case, 2 occurs 4 times.

RANGE - Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is 13-1=12

which inequality has the same solution set as 3(q + 6) > 11?
3q + 18 < 11
3q + 6 > 11
q + 18 > 11
q + 18 > 11

Answers

Given:

The inequality is

[tex]3(q+6)>11[/tex]

To find:

The inequality that has the same solution set as the given inequality.

Solution:

We have,

[tex]3(q+6)>11[/tex]

Using distributive property, we get

[tex]3(q)+3(6)>11[/tex]

[tex]3q+18>11[/tex]

Since the given inequality can be rewritten as [tex]3q+18>11[/tex], therefore the inequality [tex]3q+18>11[/tex] has the same solution set as [tex]3(q+6)>11[/tex].

Hence, all options are incorrect. The required inequality is [tex]3q+18>11[/tex].

Answer:

3q+18 > 11

Step-by-step explanation:

HURRY I NEED THIS QUICK Choose the two examples that represent volume.
A. the length of a path
B. the surface of a mirror
C. the amount of sand in a sand castle
D. the amount of water in a water balloon
E the amount of weight an elevator can hold

Answers

C and d I believe because they’re both dealing with things taking up space inside

657.9 as a whole number​

Answers

Answer: I would believe all you have to do is round up making the number 658 lad :)

Step-by-step explanation:

Have a good day :)

Stay safe and stay awesome :D

(8p-2)(6p+2)

multiplying polynomials please help me​

Answers

Answer:

48p2+4p-4

Step-by-step explanation:

Answer:

48p² +4p -4

Step-by-step explanation:

A polynomial of two terms is called a 'binomial'.

Here, we are multiplying 2 binomials.

This is so common, there is a standard way to do it. The method is called FOIL, which means "firsts, outsides, insides, then lasts"

You do it like this:

multiply the 'first terms' of each binomial                           -->  8p*6p = 48p²

multiply the 'outside' terms, far left and far right                 -->  8p*2 = 16p

multiply the 'inside' terms, the two terms in the 'middle'    -->  -2*6p = -12p

multiply the 'last' terms of each binomial                              -->  -2 * 2 = -4

Add 'like' terms: 48p² + (16p - 12p) -4

Answer --->  48p² +4p -4

The price of gasoline rose from $1.54 to $3.85.
A: What is the percent increase?



B: If the price reverses from $3.85 to $1.54, what is the percent decrease?

Answers

Answer:

Step-by-step explanation:

dollar amount of increase = $3.85 - $1.54 = $2.31

percentage increase = (amount of increase)/(original price) = $2.31/$1.54 = 1.5 = 150%

please answer correctly it’s urgent!!

Answers

Answer:

Perimeter: 26 units

Area: 36 units

Step-by-step explanation:

EH = 4 units

HG = 9 units

GF = 4 units

FE = 9 units

Add them all up to find the perimeter

4 + 4 + 9 + 9 = 26

Then multiply the side by length to get the area

4 * 9 = 36

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 290 engines and the mean pressure was 4.1 pounds/square inch (psi). Assume the population standard deviation is 0.6. The engineer designed the valve such that it would produce a mean pressure of 4.2 psi. It is believed that the valve does not perform to the specifications. A level of significance of 0.02 will be used. Find the P-value of the test statistic. Round your answer to four decimal places.

Answers

Answer:

P-value = 0.0046  

Step-by-step explanation:

Given that:

Sample size n = 290

sample mean [tex]\overline{x_1}[/tex] = 4.1

standard deviation [tex]\sigma[/tex] = 0.6

population mean [tex]\mu[/tex] = 4.2

The null and the alternative hypothesis

[tex]\mathbf{H_o: \mu = 4.2} \\ \\ \mathbf{H_a: \mu \ne 4.2}[/tex]

This is a two-tailed test.

The test statistics can be computed as:

[tex]Z = \dfrac{\overline x - \mu }{\dfrac{\sigma}{\sqrt{n}}}[/tex]

[tex]Z = \dfrac{4.1 - 4.2 }{\dfrac{0.6}{\sqrt{290}}}[/tex]

[tex]Z = \dfrac{-0.1 }{\dfrac{0.6}{\sqrt{290}}}[/tex]

Z = -2.838

P-value = P(Z> 2.838)

P-value = P(Z< -2.838) +P(Z > 2.838)

P-value = 0.00227 + (1 - 0.9977)

P-value = 0.00457

P-value = 0.0046      (to 4 decimal places)

5.1 Percentage changes
1. In February 2019, 195,676 mortgages were outstanding in the UK, which represented 0.38%
of all mortgages. How many total mortgages were in the UK market at that time?​

Answers

Answer:

Rounded to the nearest integer, at that time there were about 51,493,684 mortgages in the UK market.

Step-by-step explanation:

Given that in February 2019, 195,676 mortgages were outstanding in the UK, which represented 0.38% of all mortgages, to determine how many total mortgages were in the UK market at that time the following calculation must be performed:

0.38 = 195.676

100 = X

(100 x 195,676) / 0.38 = X

19,567,600 / 0.38 = X

51,493,684.21 = X

Thus, rounded to the nearest integer, at that time there were about 51,493,684 mortgages in the UK market.

Find the whole.
140% of ___ is 35

Answers

Answer:

140 percent (calculated percentage %) of what number equals 35? Answer: 25.

Step-by-step explanation:

Answer:4

Step-by-step explanation:

4

A study was conducted to investigate whether a new drug could significantly reduce pan in people with arthritis. From a group of 500 people with arthritis 250 were randomly assigned to receive the drug (group 1) and the remaining people were assigned a placebo (group 2). After one month of treatment, 225 people in group 1 reported pain relief and 150 people in group 2 reported pain relief Let Pe represent the combined (or pooled) sample proportion for the two samples. Have the conditions for inference for testing the difference in population proportions been mel? (A) No. The people in the study were not selected at random (6) (B) No. The number of people in the study was too large compared with the size of the population (C) No. The normality of the sampling distribution cannot be assumed because Pe times each sample size is not sufficiently large (D) No. The normality of the sampling distribution cannot be assumed because I - Pe times each sample size is not sufficiently large 6 (E) Yes. All conditions for inference have been met

Answers

Answer:

(C) No. The normality of the sampling distribution cannot be assumed because Pe times each sample size is not sufficiently large

Step-by-step explanation:

The above happens to be the true statement to the question asked about the new drug study which was carried out just to know its effect with those patients suffering from arthrities.

Different shapes are drawn on cards and then the cards are placed in a bag. The number of cards for each shape is shown in the table.
Shape octagon square circle
Number of cards 12 27 91
What is the probability that a randomly selected card has a circle drawn on it?

Answers

Answer:

5 %

Step-by-step explanation:

if the body temperature in 98.6. what is the temperature in celcius

Answers

Answer:

37 Degree celcius; is the correct answer...

Use synthetic substitution to find |(3) for f(x) = x2 - 9x +5.
Oa. 41
Ob.-23
Oc. -13
Od. -16

Answers

Answer:

-13

Step-by-step explanation:

The sum of two numbers is 20.5 and the difference of the same two numbers is 6.5.
Find the two numbers. *​

Answers

Answer:

13.5 and 7

Step-by-step explanation:

x + y = 20.5

x - y = 6.5

Hence,

x = 20.5 - y

20.5 - 2y = 6.5

Hence,

2y = 14

y = 7

and x = 20.5 - y = 20.5 - 7 = 13.5

The two numbers are are 13.5 and 7.

What linear equations represents the numbers?

a + b = 20.5 equation 1

a  - b = 6.5 equation 2

Where a and b represents the two numbers

What is the value of b?

In order to determine the value of b, subtract equation 2 from 1

2b = 14

Divide both sides by 2

b = 7

What is the value of a?

Substitute for b in equation 1

a + 7 = 20.5

a = 20.5 - 7

a = 13.5

To learn more about simultaneous equations, please check: https://brainly.com/question/25875552

Can someone please help me please

Answers

Answer:

it's answer is C. 12/10 = 4 / x

Step-by-step explanation:

As the triangles are similar so

4/12 = x/10

Or cross multiply then

12/10 = 4/x

Hope it will help :)

math problemmmmm
—————————-

Answers

Answer:

The answer to your question is x = 4

x=4

Step-by-step explanation:

To start figuring this out, you need to combine like terms.

To start, you can combine all terms containing the variable x, which is 2x and 3x. This would then make the equation 5x+7-2=25.

You then need to combing the singular numbers, 7 and -2. Doing this brings the equation to 5x+5=25.

From here, subtract 5 from both sides to get you 5x=20.

Finally, you divide both sides by 5 to get you x=4.

I hope this helped!! Let me know if you need any further help!

what is the diameter of a circle whose area is 616cm​

Answers

Answer:

308cm

Step-by-step explanation:

We know that,

Radius of a circle(r)= diameter/2

So, r= 616/2

i.e 308cm

A grocery store sells a can of soup for $2.40 If they apply a 60% markup before selling it how much did the grocery store pay for the soup

Answers

Answer:

$0.96

Step-by-step explanation:

You will pay $0.96 for a item with original price of $2.40 when discounted 60%. In this example, if you buy an item at $2.40 with 60% discount, you will pay 2.40 - 1.44 = 0.96 dollars.

Hope this helps

How do you graph X>=4y?

Answers

Answer:

[tex]x\geq 4y\\y\leq \frac{x}{4}[/tex]

wo 6-sided number cubes are rolled for a board game. The 2 numbers are then added together to determine how many spaces the player advances on the board. Select the method of display that would be best for showing all of the outcomes for each number cube and the sums that would result. Create the display, and justify the reasoning behind your choice.

Answers

Answer:

The odds of rolling a 3 on a 6-sided number cube is 1 out of 6. The odds of rolling a 3 on either of two 6-sided cubes are 1/3. This is because 1/6 * 2 = 1/3. Therefore, an average of one-third of rolls will have a 3 in them. 1/3 expressed as a decimal is .3 repeating (.3333333 etc) and that rounds to 33 which is less than 34.

Step-by-step explanation:

A car travels about 46 feet in one second. At this speed,
about how many feet will the car travel in 2 seconds?
A
920 feet
B
48 feet
480 feet
D
92 feet

Answers

I think it is D, 92 seconds. I doubled 46 so I hope I helped :))
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