Mathematics High School

Consider the procedure used below to solve the given equation.
Given: 5(2x - 5) + 2x+8 = 43
Step 1: 10 - 25 + 2 + 8 = 43
Step 2: 12r - 17 = 43
Step 3: 12r = 43 +17
Step 4: 121= 60
Step 5: x=5
Which statement about the solution of the given equation is true?
The first mistake was made in Step 1.
The first mistake was made in Step 2
The first mistake was made in Step 3
Each step is correct.

Answers

Answer 1

The first mistake was made in step 1 because they took out the x’s it should be 10x-25+2x+8=43

Related Questions

discriminate of 2x2 – 9x + 2 = –1

Answers

Answer:

The discriminant is less than 0, so there are two complex roots.

Step-by-step explanation: i think

(x-3)2 = 4x
Which of the following is a value of x that satisfies the equation above?

Answers

Answer:

x=-3

Step-by-step explanation:

Answer:

x = -3

Step-by-step explanation:

2(x - 3) = 4x

2x - 6 = 4x

2x - 4x = 6

-2x = 6

x = -3

I hope this helps you :)

Ten less than seven times a number is twenty three.

Answers

Answer:

I believe the number is 4.7

i think it’s 10-7x=23

y=1/4 x y=4x-5 parallel perpendicular neither

Answers

Answer:

Neither.

Step-by-step explanation:

The slope for the first one is 1/4 and the slope for the second one is 4. These are reciprocals, but not opposite reciprocals, meaning they are not perpendicular. An opposite reciprocal means the fraction is flipped (ex. 3/1 to 1/3) and the sign is changed. The line parallel to y=1/4x would be y= -4x.

Answer:

Neither

Step-by-step explanation:

PLEASE HELP DUE SOON!!!
Jordan is mowing lawns to save money for the Camp Rodeo Field Trip. The total cost for the excursions, travel, and food will be $130. Jordan has already saved $50. Which of the following equations represents how much more money Jordan needs to save in order to go on the field trip?

A. x + 50 = 130

B. x - 50 = 130

C. x - 130 = 50

D. x = 50 + 130

Answers

Answer:

X + 50 = 130

Step-by-step explanation:

This is actually a subtraction equation although addition is how you set it up initially. X is the variable. You already have $50. You need $130.

To solve, subtract 50 from each side,

X + 50 - 50 = 130 - 50, and simplify,

X = 120.

Jordan will need $120 more to go to the Camp Rodeo Field Trip.

Hope this helps.

A grocery store sells a bag of 6 oranges for $3.90. What is the unit cost?
Pls Answer and I shall give u a- Thank You - Vielen Dank

Answers

Answer:

it would be 0.64

Step-by-step explanation:

HELP PLS! After u find the length of P explain the reasoning you used and I’ll give u brainliest!!

Answers

Answer:

30 yd

Step-by-step explanation:

First find the area of the current parking lot:

(20X10)-(4x5)=

200-20=180 yd²

We know the new part is 10-4 yards wide, so 6.

180÷6=30yd

So the length of P is 30 yd.

Amy earned $25 after babysitting for 3 hours. If she always charges the same rate, how much will she make after working for 7 hours?

Answers

Answer:

$58.33

Step-by-step explanation:

Set up a proportion where x is the amount she makes for 7 hours:

[tex]\frac{3}{25}[/tex] = [tex]\frac{7}{x}[/tex]

Cross multiply and solve for x:

3x = 175

x = 58.33

So, after working for 7 hours, she will make $58.33

Answer:

About 60-65$

Step-by-step explanation:

Because every 3 hours she gets $25 and she worked 7 hours so there's 6 in 7 hours so 25+25 is 50 and the other hour would be half of 25 so 12.5 so between 60-65. Im so sorry if its wrong hope it worked tho! <3

The total coast of a ski trip is $315 with a literal equation of 315=85x+60 how many ski trips can you take

Answers

Answer:

Three

Step-by-step explanation:

Minus 60 from both side

255=85x

Divide both sides by 85

3=x

brfhhhhhdnbhfjekgutfjdkkkkkkkkkkknhuuefdknmsncejftgrjkfdm,c

Answers

Answer:

i think your answer is B

Step-by-step explanation:

answer question for brainliest

The table shows the listed sale price for bottled water at four stores.

Which store charges the LEAST amount per bottle of water?

Store 1 Store 2 Store 3 Store 4
Three 12 packs One 12 pack Four 6 packs One 6 pack
$10.49 $3.89 $7.99 $2.29
A
Store 1

B
Store 2

C
Store 3

D
Store 4

Answers

Answer:

I believe it d I'm sorry if it wrong but if I'm right mark brainlyest please

Find the probability of getting four consecutive aces when four cards are drawn without replacement from a standard deck of 52 playing cards.

Answers

Answer:

P=0.0000037

P=0.00037%

Step-by-step explanation:

Probability

A standard deck of 52 playing cards has 4 aces.

The probability of getting one of those aces is

[tex]\displaystyle \frac{4}{52}=\frac{1}{13}[/tex]

Now we got an ace, there are 3 more aces out of 51 cards.

The probability of getting one of those aces is

[tex]\displaystyle \frac{3}{51}=\frac{1}{17}[/tex]

Now we have 2 aces out of 50 cards.

The probability of getting one of those aces is

[tex]\displaystyle \frac{2}{50}=\frac{1}{25}[/tex]

Finally, the probability of getting the remaining ace out of the 49 cards is:

[tex]\displaystyle \frac{1}{49}[/tex]

The probability of getting the four consecutive aces is the product of the above-calculated probabilities:

[tex]\displaystyle P= \frac{1}{13}\cdot\frac{1}{17}\cdot\frac{1}{27}\cdot\frac{1}{49}[/tex]

[tex]\displaystyle P= \frac{1}{270,725}[/tex]

P=0.0000037

P=0.00037%

There are 30 students Ms. Washington’s class. Sixteen of the students are in band. What percent of Ms. Washington’s class is in band?

Answers

Answer: 53.33

Step-by-step explanation:

i need help please
its pretty urgent

Answers

~A ~Because you multiply five times D equals 5D +5×1=5

Mr. Moore has 5 1/4 pounds of dry fish food. He will be putting an equal amount of food into 3 containers. How much fish food will be in each container?

Answers

5 and 1/4 can be 5.25 so all you have to do is divide that by 3 and you’ll get 1.75 per container.

If you wanted to keep it as a fraction, 5 and 1/4 would become 21/4 (you do 5 x 4= 20 + 1) and for fractions I always remembered dividing as ‘Keep, Change, Flip’ so you would do 21/4 for keep. Change would be to change the sign from division to multiplication. And for Flip you would flip 3 over 1 (3/1) to 1/3

Putting that all together would be 21/4 x 1/3 which also equals 21/12 by multiplying the denominators and numerators. Then you simplify, dividing it by 3 to equal 7/4 and another simplify to be 1 and 3/4 which is 1.75.

Hope this helps!

Naomi can run 12 miles in 108 minutes. She is thinking about running in two different races, a 9-mile race and a 13-mile race. At her current rate, how many more minutes will it take her to complete the 13-mile race than the 9-mile race?

$______
PLEASE HELP I"LL GIVE BRAINLEST DUE AT 11:59

Answers

Answer:

Step-by-step explanation:

It takes her 9 minutes to run one mile

9*9=81

13*9=117

117-81=36

Hope this helps! :)

Write a recursive sequence for the following:
27, 33.5, 40, 46.5

Answers

Your answer is It adds by 6.5

Hayley is filling a tank with water. She measures the depth, in inches, of the water in the tank at the end of each hour for 8 hours. Hayley writes the equation y = 10x + 6 to describe the depth of the water in the tank (y) at the end of each hour (x). Which graph shows the depth of the water in the tank at the end of each hour?

Answers

Answer:

the top left

Step-by-step explanation:

What is the sum of:
-11.5 (3.2) =
Please answer

Answers

Answer:

Step-by-step explanation:

you multily the negative by the positive and get a negative answer so -36.8

Which could be the first step in solving the equation represented by the model below?

A. Add 4 negative unit tiles to both sides.
B. Add 4 negative unit tiles to the left side, and add 6 negative unit tiles to the right side.
C. Add 4 positive unit tiles to both sides.
D. Add 6 negative unit tiles to the left side, and add 4 negative unit tiles to the right side.

Answers

Answer: A. Add 4 negative unit tiles to both sides.

Step-by-step explanation: Hope this helps

the cytlindrical part of an architectrual column has height of 325cm and a diameter of 30cm. Find the volume of the cytlindrical part of the column. use 3.14 and round your answer to the nearest cubic centimeters if needed

Answers

229612.5 cm
To find the volume of a cylinder you have to use this equation V= (3.14)r^2h The (r) representing the radius and the (h) of representing the height It’s and to find Radius from diameter you have to find half of the diameter.

Answer:

Step-by-step explanation:

229,613 cm ^3 took test.

Rewrite the expression 16 + 32 as the product of the greatest common factor and the sum of the remaining numbers. Group of answer choices 2(8 + 16) 8(2 + 4) 4(4 + 8) 16(1 + 2)

please help and the question is in the docs

Answers

Answer:

sfuc,k u

Step-by-step explanation:

Whats 2 & 1/2 divided by 3 & 1/3

A = 3/5

B = 3/4

C = 4/10

D= 15/12

help pls 25 points

Answers

Answer:

B = 3/4

Step-by-step explanation:

2 1/2 / 3 1/3

can be written as 5/2 divided by 10/3. I always use keep, switch, flip technique with fractions. keep 5/2 switch the division to multiplication, flip the 10/3 to 3/10

5/2 x 3/10 cross multiply

15/20 = 3/4

Answer:

It would be B. 3/4

Step-by-step explanation:

You turn the mixed numbers into improper fractions then you divide by using the reciprocal of the 3 & 1/3. This will leave you into the equation "5/2 * 3/10"

When multiplied, you will get "15/20" which simplifies to "3/4"

the ratio of two supplementary angles is 3:6. what is the measure of the smaller angle?

10, 20, 30, or 60?

Answers

Answer:

it's so hard bro I can't anser

Bob baked 175 brownies to give seven of his friends if he splits the brownies evenly and keeps none for himself how many brownies will each friend get

Answers

Each friend will get 25 brownies each!!!!

Answer:

Step-by-step explanation:

175 ÷ 7 = 25

Which statement about rigid transformations is true?

A.
A rigid transformation preserves only the side lengths of a polygon.

B.
A rigid transformation preserves only the angle measures of a polygon.

C.
A rigid transformation preserves both the side lengths and the angle measures of a polygon.

D.
A rigid transformation preserves neither the side l

Answers

Answer:

The answer is B because it is only the measure of the polygon

Use the scatter plot to fill in the missing coordinate of the ordered pair?

Answers

Answer:

Pairs (0, 14) and (10, 0)

$64 for four video games
What is the ratio and unit rate

Answers

Answer:

16 for each video game

Step-by-step explanation:

The unit rate is 16x

the ratio is 16:1

The slope is y=16x

Answer:

The ratio: $65:4

The unit rate: 16.25:1

Step-by-step explanation:

The ratio is money to video games.

The unit rate is how much money each video games cost.

Will sells 35 L of milk in a day how many liters of milk will be sold if he has
to sell 125% more milk per day

Answers

Answer:

i think it is 43.75

Step-by-step explanation:

Either that or 39.375

(Sorry I couldn't answer in more detail. Please don't get mad at me)

Answer:78.75

1.25×35=43.75

43.75+35=78.75

I hope this is good enough:

Is 9% of 998 pages less or larger HURRYYYYYYYY

Answers

Less than, Have Ah Good Day

Answer:

less that is it have good day

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