Ms. Chibbaro asked her students to find an expression equivalent to 7 - 3(4 - 2x) - 10x Jon had the work shown to the Left on his paper. One step in Jon's wok is incorrect. Find and explain the error. Then write your own expression equivalent to the one given by Ms. Chibbaro.

Answers

Answer 1

Answer:

[tex]-15 + 6x[/tex]

Step-by-step explanation:

Given

[tex]Expression: 7 - 3(4 - 2x) - 10x[/tex]

Required

Determine Jon's error and make corrections.

Also, give the equivalent of the expression

The question has missing details because Jon's workings is not listed.

One mistake student's make during multiplications that involves minus (-) and plus (+) is in the signs.

So, watch out for the signs to know where the error is.

However, I'll give an equivalent of the given expression

[tex]7 - 3(4 - 2x) - 10x[/tex]

Open Bracket

[tex]7 - 12 + 6x - 10[/tex]

Collect Like Terms

[tex]7 - 12 - 10 + 6x[/tex]

[tex]-15 + 6x[/tex]

Hence, the given expression is equivalent to [tex]-15 + 6x[/tex]


Related Questions

somebody please belp

Answers

Answer:

- 22.76

Step-by-step explanation:

if b = - 0.16 the you subtract that with - 22.6

- 0.16 - 22.6 = - 22.76

a function of the form

Answers

Answer:

In The Function of Form, internationally acclaimed architect, Farshid Moussavi, provides a provocative critique of the historically opposing relationship between function and form to reveal the contradiction at the heart of modernism.

Step-by-step explanation:

Answer: A function of the form is a special relationship where each input has a single output like f(x)=x/2 its a function because of the input value

Step-by-step explanation:

a function can be solve this way

f(2)=1

f(16)=8

ect

hope this helps

Write the point-slope equation of the line that goes through (4,6) with a slope of -2.

Answers

Answer:

(6,8) i think

Step-by-step explanation:

Which triangles are congruent by AAS? Fill in the blank beside the triangles with yes or no.

Answers

Answer:

IM BOUT TO SOLVE

Step-by-step explanation:

Answer:

 

Step-by-step explanation:

Solve the equation by​ factoring.
[tex]2x^{2} +20x=7x+7[/tex]
(PLEASE SHOW YOUR PROCESS)

Answers

2x^2+20x=7x+7

2x^2-13x-7

(2x+1) (x-7)

2x+1=0

2x/2=-1/2

x=-1/2

x-7=0

x=7

The value of x is what the answer​

Answers

Answer: x = 20

because 2 triangles are similar

=> [tex]\frac{2x-4}{24}=\frac{42}{x+8}[/tex]

⇔ (2x - 4)(x + 8) = 24.42

⇔ 2x² + 12x - 32 = 1008

⇔ 2x² + 12x - 1040 = 0

⇔ 2(x - 20)(x + 26) = 0

because x > 0

=> x = 20

Step-by-step explanation:

6 > -4h + 10
How do I do this

Answers

Wolf565436 is right that is the best way to do it


William charges $4 per hour to babysit. LaRhonda charges a $10 flat fee, plus an additional $2 per hour to babysit. After how many hours will William and LaRhonda earn the same amount of money? (1 pt)

Answers

Answer:

After 5 hours

Step-by-step explanation:

LaRhonda charges a 10 dollar fee plus 5 hours will get her 20 dollars.

William will babysit 5 hours for 4 dollars and receive 20 dollars also.

The will earn 5 teeeeeee

The ratio of black socks to white socks in the sock drawer is 1:4. There are 8 black socks. How many white socks are there?

Answers

Answer:

32

Step-by-step explanation:

Sally and her mom were making cookies to hand out to her neighbors for the holidays. Their first batch made 26 cookies, their second batch yielded 38 cookies, on the third batch the make 45 cookies, and for the last batch they were able to make 25 cookies. What is the mean?

Answers

Answer:

The mean number of cookies was 33.5

Step-by-step explanation:

Add the values of the terms and divide by the number of terms.

So...

26 + 38 + 45 + 25 = 134

134 ÷ 4 = 33.5

saftey first owo idc if i get baned agian i have an extar account owo

Answers

Answer: uwu hai owo how are you :3

Step-by-step explanation:

Answer:

oo jeez thats gross

Step-by-step explanation:

dont share photo's kids

what is 4+4-3+4-6+7=​

Answers

Answer:

10

Step-by-step explanation:

itsss 10 :))))))))))>))))))))

A farm lets you pick 3 pints of raspberries for $12.00. Use any strategy you want to answer the questions below. 1. What is the cost per pint? 2. How many pints do you get per dollar? 3. At this rate, how many pints can you afford for $20.00? 4. At this rate, how much will 8 pints of raspberries cost?

Answers

Answer:

$4 per pint

1/4 pint per dollar

5 pints for $20

$32 for 8 pints

Step-by-step explanation:

12.00/3 = 4

$4 per pint

1/4 = 1/4

1/4 pint per $1

$20 / $4 = 5 pints

$4 * 8 = $32

X = 5 what is the red and blue angle? PICTURE ATTACHED

Answers

The red is 125, the blue is 145

Answer:

Step-by-step explanation:

if x=5 then

7x = 7*5 = 35°

11x= 11*5 = 55°

those two angle are adding to 180 with the red and blue ones

180-35=145° is blue

180-55=125° is red

Solve the equation. 5/6x - 4 = -2

A. 2 2/5

B. 1 2/3

C. -2 2/5

D. 3 2/5

Answers

Answer:

A

Step-by-step explanation:

Given

[tex]\frac{5}{6}[/tex] x - 4 = - 2 ( add 4 to both sides )

[tex]\frac{5}{6}[/tex] x = 2 ( multiply both sides by 6 to clear the fraction )

5x = 12 ( divide both sides by 5 )

x = [tex]\frac{12}{5}[/tex] = 2 [tex]\frac{2}{5}[/tex] → A

At a little-known vacation spot, taxi fares are a bargain. A 64-mile taxi ride
takes 72 minutes and costs $57.60. You want to find the cost of a 38-minute taxi ride. What unit price
do you need?

Answers

Answer:

The answer is 34.4

Step-by-step explanation:

Trust me it's correct

Pls mark me as brainliest

Which equation represents a line which is parallel to the line 2x + y = -1?

Answers

Answer:

y=2x-1

Step-by-step explanation:

i passed this

ANSWER E AND F PLEASE HELP ASAP

Answers

Answer:

f.Answer:

K = 3

T = 2

And

H = 12

Step-by-step explanation:

3k = 9

k = 9/3

k = 3.

3k =k + 3t

subtitute value of k

3×3=3+3t

9-3=3t

6/3=t

t=2.

2k + h =18

2×3+h=18

h=18-6

h=12..

A group of 4 friends go out for dinner and the total cost of the dinner is $200. They use a $40 coupon before splitting the bill evenly. How much would each person pay after they use the coupon? *

I AM DYING 2 KNOWWWW
Also this is a integer question

Answers

Answer:

$40.00

Step-by-step explanation:

the total is 200 so then u subtract the $40 from the coupon which will leave u with 160. Since there is 4 people 160/4 equals 40. Therefore your answer is each person pays $40.00

Answer:

40

Step-by-step explanation:

First subtract the 40 coupon from the equation since it says they use it before paying. Since they all pay the same amount, use x in this case, simply divide 160 by 4, which is 40 for each person. And to double check the answer, multiply 40 by 4, to make sure each person pays the same, then add the 40 dollar coupon, and the answer should be $200. Or, you can think of it as 40x+40(Coupon)=200. Or 200-40=40x.

Pentru a culege nectar 45 de albine au vizitat, intr-o singura exeditie, unele 60 flori, iar altele 75 de flori . Stiing=d ca au vizitat imreuna 3120 de flori , sa se afle cate albine au vizitat cate 75 de flori.

Answers

69.3 I think hope that helps

Consider the function f(x) = x^3 - 7x^2 - 2x + 14
What is the total number of zeros of f(x)? Explain how you got your answer.
Find the zeros of f(x). Explain your procedure as you solved it.

Answers

Answer:

There are 3 zeros, which are:

[tex]x=7,\:x=-\sqrt{2},\:x=\sqrt{2}[/tex]

Step-by-step explanation:

Given the function

[tex]f\left(x\right)\:=\:x^3\:-\:7x^2\:-\:2x\:+\:14[/tex]

To get the zeros of [tex]f(x)[/tex], set [tex]y[/tex] or [tex]f(x) =0[/tex]

so

[tex]0=x^3-7x^2-2x+14[/tex]

as

[tex]x^3\:-\:7x^2\:-\:2x\:+\:14=\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)[/tex]

so

[tex]\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)=0[/tex]

Using the zero factor principle:

[tex]\mathrm{ \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)[/tex]

so

[tex]x-7=0\quad \mathrm{or}\quad \:x+\sqrt{2}=0\quad \mathrm{or}\quad \:x-\sqrt{2}=0[/tex]

solving

[tex]x-7=0[/tex]

[tex]x=7[/tex]

[tex]x+\sqrt{2}=0[/tex]

[tex]x=-\sqrt{2}[/tex]

[tex]x-\sqrt{2}=0[/tex]

[tex]x=\sqrt{2}[/tex]

Therefore, there are 3 zeros, which are:

[tex]x=7,\:x=-\sqrt{2},\:x=\sqrt{2}[/tex]

In triangle FGH, is an angle bisector of and perpendicular to . In triangle F G H, angle F G H is cut by perpendicular bisector G J. The length of side F G is 3 x minus 8, the length of side G H is 16, the length of line segment F J is x. What is the length of ? 4 8 16 24

Answers

Answer:

its 16  

i had this question on edge

Answer:

c

Step-by-step explanation:

What is the solution to 2x2+8x=x2-16? x=-4 x=-2 x=2 x=4

Answers

Answer:

2x+8x=x-16?

10x=x-16

9x=-16

x=-16/9?

Step-by-step explanation:

Answer:

X= -4 Or A on egde.

Step-by-step explanation:

I just took the test 2021

what's the slope intercept equation of slope-4 y intercept 0,11​

Answers

Step-by-step explanation:

y = mx + c

m = 4

c = 11

.: y = 4x + 11

y - 4x = 11

divide both sides by 11

[tex] \frac{y}{11} - \frac{4x}{11} = 1[/tex]

[tex] \frac{y}{11} - \frac{x}{11/4} = 1[/tex]

is the slope intercept equation (perpendicular equation)

Larry has $150 in his bank account. He deposits $27 and then writes a check for $96
and a check for $31. How much money is now in his account?

Answers

Answer:

$-4

Step-by-step explanation:

Your welcome

Answer:

$50

Step-by-step explanation:

So the best thing is to com eup with an equation. I came up with:

150 + 27 - 96 - 31

Deposit means to put money into, so that's why we're adding 27.

And then the checks mean that they are going to be taken out of, so that's why we're subtracting 96 and 31. All that's left to do now is solve.

150 + 27 = 177 - 96 = 81 - 31 = 50

It rained all day on Father's Day and the temperature dropped ten and seven tenth degrees. The next day the rain stopped and the temperature rose twelve and six tenths degrees. If the temperature at the beginning of Father's Day was sixty five and eight tenths degrees, what was the temperature at the end of the day after Father's Day?

Write numerical answer only (no sentences, no units) Pls help I'll give brainliest

Answers

Answer:

[tex]67\frac{7}{10}[/tex] or [tex]67.7[/tex]°

Step-by-step explanation:

First let's interpret the wording. It mentions that on the first day the temperature dropped [tex]10\frac{7}{10}[/tex]. Then on the second day the temperature increased by [tex]12\frac{6}{10}[/tex]. Then they tell us that if the beginning temperature was [tex]65\frac{8}{10}[/tex] what would the temperature be at the end of the of the second day. So since the temperature decreased the first day we should subtract [tex]10\frac{7}{10}[/tex] from [tex]65\frac{8}{10}[/tex]. That will give us [tex]55\frac{1}{10}[/tex]. Now for the second day the temperature increased so we will add [tex]12\frac{6}{10}[/tex] to [tex]55\frac{1}{10}[/tex] and that will give us [tex]67\frac{7}{10}[/tex] and if you want it in a decimal it will be [tex]67.7[/tex].

A woman bought a stove for $2800. After using it for 2 years she decided to trade in the stove. The company estimated a depreciation of 15% for the first year of its use and a further 15% on its reduced value, for the second year.
i.) Calculate the value of the stove after two years.
ii.) Express the value of the stove after two years as a percentage of the original value. (5mks)

Answers

Answer:

$1719.55, 61.4%

Step-by-step explanation:

Original price of stove:  $2,800

Value of stove after 1 year:  (1 - 0.15)($2,800), or 0.85($2,800) = $2,380

Value of stove after 2 years:  0.85($2,380) = $1719.55

Find the ratio of this last result to the original price and convert that to a  percentage:

$1,719.55

-------------- = 0.614, or approximately 61.4%

 $2,800

Find the sum (8x + 2) + (–9x + 7).

Answers

Answer:

-x+9

Step-by-step explanation:

remove the parenthesis

combine like like terms

8x-9x=-x

2+7=9

Answer:

-x+9

Step-by-step explanation:

remove the parenthesis and combine the alike terms

HELP ASAP! Given f(x) = ax^2 + c, list each characteristic of the function.
What does a do?
What shifts the graph from going up to going down?
What does x^2 do?
What does c do?
What is the vertex?

Answers

Sorry I just wanted freee pointed

Which graph represents a proportional relationship?
I need the answer please

Answers

Answer:

The first one

Step-by-step explanation:

On a graph, if the line starts at the origin, where the 0 is, which is the center in this case, it is proportional

On a table, if the numbers all the have the same rate of change, which is y/x, then it is proportional

The first one it goes through the middle
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