Each step in a procedure to solve this equation is shown.
Equation: 5x - 7 = 3(x + 1)
Step 1: 5x - 7 = 3x + 3
Step 2: 2x - 7= 3
Step 3: 2x = -4
Step 4: x= -2

In which step is the first error made?

A. from the original equation to step 1

B. from step 1 to step 2

C. from step 2 to step 3

D. from step 3 to step 4

Answers

Answer 1

Answer:

C. from step 2 to step 3

Answer 2
From step 2 to 3

It should be
2x = 10

Related Questions

8 – 3(k + 2) = 2 – 3k

Answers

Answer:

the answer is 0

Step-by-step explanation:

you distribute the 3 which gives

8 - 3k - 6 = 2 - 3k

then you combine like terms and end up with

2 - 3k = 2 - 3k

then you subtract 2 on each side which gives

- 3k = - 3k

and then when you have to keep combining like terms so you add the 3k on both sides which gives u 0

4 children want to share 7 Brownies so that each person get the same amount how much brownies will each child get

Answers

Answer:

answer: 1.75 of a brownie

Step-by-step explanation:

you divided 7 by 4 to get 1.75

Answer:

[tex] \frac{7}{4} \: or \: 1 \: and \: \frac{3}{4} \: or \: 1.75 [/tex]

Step-by-step explanation:

you are dividing 7 brownies on 4 children so it's 7 divided by 4...

The tide level goes down all evening, and Hamid’s instruments read 11 ft above his marker 1 hour before he arrived. Write the equation in slope-intercept form of the line that represents today’s tide level y relative to the marker over time x, if Hamid knows the line is parallel to the graph of yesterday’s data, y=−8x− 2.​

Answers

Answer:

y - 11 = -8(x - 1)

Step-by-step explanation:

We are told Hamid’s instruments read 11 ft above his marker 1 hour before.

Where y is tide level and x is time.

Thus, x1 = 1 and y1 = 11

Since graph of yesterday's data is y = -8x - 2,then in slope intercept form, the equation parallel is;

y - y1 = m(x - x1)

m is -8.

Thus; y - 11 = -8(x - 1)

PLEASE HELP IT'S DUE NOW!!! Rob deposited 22% of his paycheck into his savings account. If he deposited $21.67, what was the amount of his paycheck?

Please include all of the work as well as the answer!!! Thank you so much!!

Answers

Answer:

56.33

Step-by-step explanation:

because if 78+22=100 then you divide 78 by

21.67 which gets you the answer 56.33

Find the value of x.

Answers

Answer:

that would be 45

Step-by-step explanation:

Find the intercept form (-4,2), (4,7)

Answers

Answer:

y=5/8x+4.5

Step-by-step explanation:

You have to do y-y divided by x-x so 7-2 which equals 5 and 4-(-4) which equals 8 so your slope is 5/8. For y-intercept, you have to do plug in one of your points into y and x in y=mx+b, so I used the point (4, 7) and I put 7 in the y spot and 4 in the x spot and I put the slope in the slope spot so now you have 7=5/8(4)+b. Next, you multiply 5/8 and 4 which gives you 5/2 or 2.5, so now you have 7=2.5+b. Then you subtract 7-2.5 which gives you 4.5 and there is your y-intercept and your whole equation is y=5/8x+4.5.

Valeria is training for a marathon. She jogs the same 15 mile route twice in one week. On Monday, she jogged the route in 1.75 hours. Thursday, she tried to improve her speed. She jogged the same route in 1.63 hours. Her smart watch said her rate on Monday was 8.57 miles per hour. She forgot to set the smart watch to calculate her rate on Thursday. Use the information you have to calculate how fast she was running on Thursday.

Answers

Answer:

9.20 miles per hour

Step-by-step explanation:

Given data

distance of the route = 15miles

time taken on Monday= 1.75hours

speed= distance./time

speed= 15/1.75

speed= 8.57 miles per hour

her smart watch is correct

time taken on Thursday= 1.63hours

speed= distance./time

speed= 15/1.63

speed= 9.20 miles per hour

she was jogging at 9.20 miles per hour

             

Tom ate at a restaurant. His bill was $12.00. He left a 15% tip. Determine whether each statement about Tom's payment is true or false.

Answers

Answer:

True, True, False, True

Step-by-step explanation:

$12.00 ⋅ 0.15 = $1.80

Tom paid $1.80 as tax. That takes care of the second question.

$12.00 + $1.80 = $13.80

So Tom paid more than $12.00 for his meal. That takes care of the first question.

We already know that Tom paid $1.80 as tax. So we know the third question is not right.

And we already know that $12.00 + $1.80 = $13.80. So the fourth question is correct.

Answer:

thanks

Step-by-step explanation:

Paul’s dog weighs 12 pounds more that Issac’s dog. Together they weigh 50 pounds. How much does Issac dog weigh ???

Answers

Answer:

Issac's dog weighs 19 pounds

Step-by-step explanation:

Let x be Issac's dog's weight

Translate the problem into an algebraic expression: x + (x + 12) = 50Simplify: 2x + 12 = 50Subtract 12 from each side, so it now looks like this: 2x = 38Divide each side by 2 to cancel out the 2 next to x. It should now look like this: x = 19

I hope this helps!

15% of X is 20 what is 23% of X

Answers

15% of 134 is 20.1. So therefore 23% of 134 is 30.82. This could be wrong I’m not sure

A purple hot-air balloon is 90 feet off the ground and rising at a rate of 7 feet per second. A yellow hot-air balloon is 120 feet off the ground and rising at a rate of 4 feet per second. Which equation could represent this situation and determine after how many seconds, s, the purple hot-air balloon will be the same height as the yellow hot-air balloon?
1 point
90 + 7s = 120 + 4s
7s + 120 = 4s + 90
90s + 7 = 120s + 4
11s = 210

Answers

90+7s = 120 + 4s

11s = 210

write 321x64 in long muliplication

Answers

Step by step:
3 2 1
× 6 4
————————————-
+ 1 2 8 4
+ 1 9 2 6 0
————————————-
= 2 0 5 4 4

Wanda is looking to rent a fog machine for a Halloween party. One company charges a $35 rental fee
and $3 per minute. A second company charges a $45 rental fee and $2 per minute. Write and solve
an equation to determine the number of minutes that Wanda can rent the fog machine for both
companies to cost the same. *
Your answer
Please awnser this for me I will urs

Answers

Answer:The equation is 35+3m=45+2m and the answer is 10 minutes.

Step-by-step explanation:

35+3m=45+2m

Subtract 35 from both sides

Then you end up with 3m=10+2m

Then you subtract 2m from both sides

Then you end up with 1m=10

Then you divide both sides by 1 and your answer will be m=10

Which statement about the following system of inequalities is true?

There is no solution because the shading does not overlap.
There is no solution because the graphs do not intersect.
The solution contains points in four quadrants of the coordinate plane.
The solution is equal to the solution to

Answers

Answer:

the following system of inequalities is true

Step-by-step explanation:

there is no solution because the graph do not intersect

There is no solution because the graph does not intersect.

The following system of inequalities is true.

We have given that,

There is no solution because the shading does not overlap.

There is no solution because the graphs do not intersect.

The solution contains points in four quadrants of the coordinate plane.

The solution is equal to the solution to

What is inequality?

A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

There is no solution because the graph does not intersect.

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Demand for bikes has suddenly increased, and the market price has risen from $50 to $60.
In three to five sentences, explain how this change will affect profits.

Answers

Answer:

profits will increase so with that being said the supply of them dropped if demand increased getting bikes will be harder for competing business in the area and so therefore if you have 200 bikes and others have 50 bikes your gonna make way more profit and for the people with 50 bikes they will gain and lose profits because when they run out of bikes they have to buy more and they are more expensive because of the demand on them

Step-by-step explanation:

The explanation regarding the change of price that impact the profits should be explained below.

Impact on profit:

The profit should rise when the supply should fall. In the case when I have 200 bikes while the other should have 50 bikes so here I make more profit however the other people will gain but the profit should be lost since the bikes should be out of the stock and at the same time they need to buy more that should be more expensive due to the demand.

learn more about profit here: https://brainly.com/question/21900302

PLEASE HELP IT'S DUE AT 11:59 (5 pts per part)


A. The Clear-Picture Cable Company charges different rates for ordering different levels of cable service. Clear-Picture Cable Company charges $24.95 a month for basic cable services plus $6.95 a month for each additional premium channel. If Stacey's monthly bill is $45.80, how many premium channels is she receiving? Write and solve and equation to answer the question. Show all work.


B. Dan signed a contract for 12 months of basic cable service with 2 premium channels each month. Dan budgeted $400 for this year's cable expenses. EXPLAIN whether Dan budgeted enough money to cover the yearly cost for his cable contract.


(please answer with all work and a full explanation for B. THANKS SO MUCH!!)

Answers

Answer:

A. 3 premium channels

B. No, he did not

Step-by-step explanation:

1a. make an equation that shows the price Stacey has to pay each month. x is how many premium channels she's paying for.

  24.95 + 6.95x = 45.8

2a. subtract 24.95 from both sides.

  6.95x = 20.85

3a. divide both sides by 6.95.

  x = 3

1b. make an expression to show the price of Dan's contract. (keep in mind, he has to pay for 2 premium channels for 12 months, so you would have to pay for the premium channels 24 times!)

  24.95(12) + 6.95(24)

2b. multiply.

  299.4 + 166.8

3b. add.

  $466.20

Dan would have to pay $466.20, so no, he did not budget enough money.

A pair of shoes costs $70.00. How much will the customer pay after 7% sales tax is added to the purchase?

Answers

Answer:

$74.90

Step-by-step explanation:

If $70 is your original price, you would need to multiply it by 1.07, because that is 107%.

Since the original price is 100% of the price, and sales tax is another 7% of the price, you are multiplying the original price by 107%, again making $74.90.

Do you understand?

help please this is timed

Answers

Answer:

i think (-3,3)

Step-by-step explanation:

plz make brainliest answer and follow and like

What is the value of 12 Superscript 0?

Answers

Answer:

1

Step-by-step explanation:

So when we raise a number to the zeroth power, that means we multiply the number by itself zero times - but that means we're not multiplying anything at all! ... In short, 0 is the only number such that for any number x, x + 0 = x

Answer:

Hi there! The answer to this question is 1.

Hope this helps :D

WILL GIVE FREE BRIANLY IF U ANSWER whats 546.1 × 0.52

Answers

Answer:     283.972 is ur answer

Answer:

283.972

Step-by-step explanation:

now thats big brain

For the Hawkins Company, the monthly percentages of all shipments received on time over the past 12 months are 80, 82, 84, 83, 83, 84, 85, 84, 82, 83, 84, and 83. Click on the datafile logo to reference the data. (a) Choose the correct time series plot. (i) (ii) (iii) (iv) - Select your answer - What type of pattern exists in the data? - Select your answer - (b) Compare a three-month moving average forecast with an exponential smoothing forecast for α = 0.2. Which provides the better forecasts using MSE as the measure of model accuracy? Do not round your interim computations and round your final answers to three decimal places. Three-month Moving Average Exponential smoothing MSE - Select your answer - (c) What is the forecast for next month? If required, round your answer to two decimal places.

Answers

explanation:

1. What type of pattern exists in the data

the data has the horizontal pattern

2. for moving average

mse = 11.11/9

= 1.23

for exponential smoothing forecast

mse = 39.11/11

= 3.56

3. we are to calculate the forecast for next month

83+84+83/3

= 83.33

I'm finding it difficult to add an attachment to my answer. The editor has not been working properly today, or it's probably an internet issue.

which answer is the right answer? will give brainliest to the best answer

Answers

Answer:

8

Step-by-step explanation:

The y is the same so you only have to calculate the difference between x.

The difference between -3 and 5 is 8.

Can someone answer this????????????????????????

Answers

Answer:

x=4

Step-by-step explanation:

Keira cut a 6 meter 9 centimeter stick into 5 equal pieces. Shayla cut a 460 centimeter stick into 4 equal pieces. How much longer is one of Shayla's wires than one of keira's?
HELP HELP HELP BASVDHGJUAWGJVJB i need it before 11:59 :(

Answers

Answer:

Keira : 609cm/5 = 121.8cm

Shayla : 460cm/4 = 115cm

6.8cm

Step-by-step explanation:

In this equation it looks like one of keira's wires is longer since when you divide the total number of centimeters (609) by 5, you get 121.8

The difference between keira and shayla's wire is 6.8cm

A koala bear is approximately 25 6 feet tall. Which point on the number line represents this value?

Answers

Answer:

A.

Step-by-step explanation:

2 and 5/6 = 2.833

The point closest is A.

Answer:

Step-by-step explanation:

Hello friend!!!!!!

The answer is A

2 5/6 is 17/6 as am improper fraction

17/6  can be written as 2.83.....

It lies between 2.8 and 2.9

so A is the correct answer.

Hope this helps

plz mark as brainliest!!!!!!!!!

10xy12
Which expression is equivalent to
-5x2, 6 ? Assume
-50x8,18
-2x8,18
-2x12,72
5x8,18

Answers

Answer:

Option B.)

[tex] - {2x}^{8} {y}^{18} [/tex]

The equivalent expression of 2(x² – 1) + 3x(x – 4) is 5x² - 12x - 2

Here, we have,

We know that,

The equivalent expression of the expression can be found as follows;

2(x² – 1) + 3x(x – 4)

open the brackets

2x² - 2 + 3x² - 12x

Therefore, let's combine like terms

2x² + 3x² - 12x - 2

Let's do the arithmetic for like terms

2x² + 3x² - 12x - 2

5x² - 12x - 2

Therefore, the equivalent expression of  2(x² – 1) + 3x(x – 4) is

5x² - 12x - 2.

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Write a linear equation that is parallel to
line below and passes through the point
(-4,-13)

Answers

Answer:

y = 3x - 1

Step-by-step explanation:

Original line: y = 3x + 5

Parallel line has the same slope, so use the point-slope form.

y - (-13) = 3(x - (-4))

y + 13 = 3x +12

y = 3x -1

The equation of the line that is parallel to the line shown in the graph and passes through the point (-4,-13) is y = 2x - 5.

What is a straight line?

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

It is given the graph of the linear equation:

From the graph:

The line passes through (-3, -1) and (0, 5)

The slope of the line is shown in the graph:

m = (5+1)/(0+3)

m = 2

The equation of the line that has slope -2 and passes through (-4, -13):

[y - (-13)] = 2[(x - (-4)]

y + 13 = 2(x + 4)

y + 13 = 2x + 8

y = 2x + 8 - 13

y = 2x - 5

Thus, the equation of the line that is parallel to the line shown in the graph and passes through the point (-4,-13) is y = 2x - 5.

Learn more about the straight line here:

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find the slope between the given two points (4, -3) and (8, -3)

Answers

The slope of the giving point is -3/2

What is the measure of the indicated angle?
120°
?

Answers

i think the answer is 180

2 – 3m < 4 + 5m

A.
m<−14

B.
m>14

C.
m>−14

Answers

Answer:

this answer will be in your book

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