Answers
Answer: 9x-3x and 5x+x
Step-by-step explanation:
1. Brianna's thinking is incorrect because of course, when x is 0, the expression will equal whatever value isn't an x term. To find equivalent expression, you actually need to find which expressions have the same amount of x terms and the same value.
2. Expressions A and C are equivalent.
3. Expression A can be simplified, as you can do 9x - 3x = 6x, so your final expression would be 6x - 4. Expression C can also be simplified with 5x + x = 6x, which can then also be written as 6x - 4. This means both expressions have the same amount of x terms, and the same value, so they are equivalent.
Answer:
Below
Step-by-step explanation:
Brianna's teacher asks her which of these three expressions are equivalent to each other
Expression A: 9x−3x−4 Expression B: 12x−4 Expression C: 5x+x−4
Brianna says that all three expressions are equivalent because the value of each one is −4 when x=0.
Brianna's thinking is incorrect. Identify the error in Brianna's thinking. Determine which of the three expressions are equivalent. Explain or show your process in determining which expressions are equivalent. Enter your answers and your explanation or process in the space provided.
So let's just simplify A and C. B is already simplified.
9x-3x-4
6x-4
5x+x-4
6x-4
So yes, Brianna is incorrect. She added 3x and 9x, instead of subtracting 3x from 9x. A and C are equivalent, but B is all alone.
---
hope it helps
Related Questions
HHELPPPPP another math up thing #2
_________________________________
1. Estimate each amount. Show or explain how you estimated one of the amounts.
a) 3/8 of 3/4
b) 7 1/0 of 8 1/2
c) 5/2 of 5/2
2. Calculate each amount.
a) 4/5 × 3 1/5
b) 4 2/3 × 3 2/5
c) 9/4 × 6/5
3. a) Explain why this is true:
3 1/4 × 2 2/3 > 6.
b) Explain why 3 1/4 × 2 2/3 is the area of a rectangle
3 1/4 units × 2 2/3 units.
(: plllllz help!! ill give u brainlist, thank you,5 stars,+ u get the points!! :D
Answers
Answer:
wwx
Step-by-step explanation:
Please help ❤❤❤
A store is having a sale on apples. The apples are normally $3.00 per pound, they are currently 20% off. What is the new price of the apples?
Answers
Answer:
$2.40 .60 cent difference
Step-by-step explanation:
nah.. trust
Answer:
$2.40
Step-by-step explanation:
What is (1, 9) and (6, 34) written in slope intercept form? Thank you!
Answers
Answer: y = 9
Good luck
y int= (0,4)
Y=5x+4
Please I need it right now .
Thanks
Answers
PLZZZ help with this its pretty simple!
Answers
Answer:
D
Step-by-step explanation:
hope this helps
Answer:
D) 4x² - 9
Step-by-step explanation:
(2x + 3)(2x - 3)
4x² - 6x + 6x - 9
4x² - 9
For each number, name its opposite.
a. -5
b. 28
C. -10.4
d. 0.875
e. O
f. -8,003
Answers
A plumber has a 2-meter length of pipe. He needs to cut it into sections that are 10 centimeters long. How many sections will he be able to cut? (I will give brainliest if you answer first)
Answers
Answer:
20 - 10 cm sections can be cut from a pipe of original length 2 m
Step-by-step explanation:
Convert 2 meters to cm:
2 m 100 cm
------ * ---------------- = 200 cm
1 1 m
Next, divide this 200 cm total length by (10 cm/section) to determine the number of sections:
200 cm
--------------------- = 20 sections
10 cm/section
20 - 10 cm sections can be cut from a pipe of original length 2 m
What is The Ratio of the Sides?
Answers
Answer: 2:3
Step-by-step explanation: 10:15, divide both sides by 5, and yield 2:3
Question 1 (4 points)
(07.07)
True or False?
When Samantha includes more batteries in her project, the current in her project increases. Current is the independent variable in this situation. (4 points)
True
False
Question 2 (4 points)
(07.07)
Byron can earn money for the lollipops he sells. Which of the following statements describes the variables in this situation correctly? (4 points)
a
The amount of money earned is the dependent variable because it affects the number of lollipops sold.
b
The number of lollipops sold is the dependent variable because it affects the amount of money earned.
c
The amount of money earned is the independent variable because it affects the number of lollipops sold.
d
The number of lollipops sold is the independent variable because it affects the amount of money earned.
Question 3 (4 points)
(07.07)
Ethan's bus is traveling at a speed of 35 miles per hour. If m represents the distance the bus has traveled and n represents the time it has spent traveling, which of the following equations shows the relationship between m and n? (4 points)
a
m = 35n
b
n = 35m
c
m = 35 + n
d
n = 35 + m
Question 4 (4 points)
(07.07)
It costs $1.58 to buy a bag of popcorn. Which of the following equations shows the amount of money needed, z, to buy n bags of popcorn? (4 points)
a
z = 1.58 + n
b
n = 1.58 + z
c
z = 1.58n
d
n = 1.58z
Question 5 (4 points)
(07.07)
James built a small electric car and recorded the distance it traveled. The table below shows the distance traveled (n) during the first 4 seconds after starting (f).
Elapsed Time
(seconds) Distance Traveled
(feet)
1 6.2
2 12.4
3 18.6
4 24.8
Which of the following equations represents the relationship between the distance traveled and the elapsed time? (4 points)
a
f = 6.2 + n
b
n = 6.2 + f
c
f = 6.2n
d
n = 6.2f
Answers
Answer:
LOOK BELOW
Step-by-step explanation:
Question 1 is false and question 2 is true.
hope this helps and add me!
Indentify the terms coefficients, and constants in each expression
Answers
The coefficients would be 4 and 3 because they have a variable after them and the constant would be 5.
coefficients 4 & 3
The graph shows Marcia's walk. Which statement best describes what Marcia could be doing on the interval from B to C? A. Marcia is running home. B. Marcia is walking home. C. Marcia is turning a corner. D. Marcia is stopping to rest.
Answers
Answer:
B. Maria is walking home
Step-by-step explanation:
Sana nakatulong
Which is larger, 6 miles or 30,000 feet?
1. 30,000 feet
2. 6 miles
3. They are equal.
Answers
You can remember this using “five tomatos”
five two eight zero (5280) feet in one mile
6 miles = 31,680ft
31,680>30,000
Order these expressions from least to greatest (look at the attached picture)
Answers
X-1 -1.25
1-x 1.25
-1/x 4
X-1
X
1-x
-1/x
Hope this is right and helps.
Solve the inequality.
2x + 7 ≥ -13
A. x ≥ -6
B. x ≤ -10
C. x ≤ -6
D. x ≥ -10
Answers
Answer:
D.
Step-by-step explanation:
First, move the 7 to the other side and then solve for x. You get 2x is greater than or equal to -20, or x is greater than or equal to -10.
Hopefully this helps- let me know if you have any questions!
Please help ❤❤❤
The mark up at a clothing store is 28%. If the whole sale price (the price the store pays) is $13 what price will they charge their customers?
Answers
Answer:
9
Step-by-step explanation:
To pass her test, Tori needs to answer at least 65% of the questions correct. If there were 60
questions and she got 42 correct, did she pass? All work MUST be shown to justify your
answer.
Answers
2) .65 • 60 = 37.2 questions need to be right
3) since she got 42 correct, that is greater than 37.2, so she passed.
OR
1) 42/60 = 0.7
2) 0.7 to a percent = 70%
3) since she got a 70% on the test, she passed.
Step-by-step explanation:
To obtain score of 80% on entire exam means the student have to answer
(80/100)×80 = 64 correct answers
Student have already answered 75% of the first 60 questions correctly meaning
(75/100)×60=45 correct answers from first 60 questions
Remaining correct answers s/he have to answer
64-45=19
So from remaining 20 questions s/he have to answer 19 correct questions that is
20 × (x/100) = 19
x = 19 ×(100/20)
x = 95%
Hello can someone answer lol my little sister wants me to turn my tablet off
Answers
Answer:
coldest at Broad Peak
warmest at Mount McKinely
Answer:
Coldest: Broad Peak.
Warmest: Mount McKinley.
Step-by-step explanation:
if you look at a timeline it should look kind of like this:
...5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5...
so basically when the negative numbers are "smaller" then the temperature etc. is greater because it is closer to the number 0...
Find the volume of a prism with a length of 4.5 inches, width of 5 inches, and a height that is one third of the length.
Answers
Answer:
33.75
Step-by-step explanation:
Formula: Width · Height · Length
Substitute with known values: 5 · height · 4.5
Find Length: Since the height is one third of the length, we need to divide the length by three → 4.5 ÷ 3 = 1.5
Know we know that the height is 1.5.
Substitute Known Height: 5 · 1.5 · 4.5
Simplify: 5 · 1.5 · 4.5 = 33.75
Chelsea buys a shirt and shoes at the store with the coupon. The price of the shirt before the discount is $22, and her total discount is $18.55. Write an equation to find a price of the shoes before the discount.
(THE COUPON IS IN THE PIC)
Answers
Answer: add 22 with $18.55 divide 50%
Step-by-step explanation:
As per linear equation, the equation to find the price of the shoe is: (11 + 0.5x) = 18.55.
The price of the shoe before discount is $15.1.
What is a linear equation?"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, 'x' is a variable, 'A' is a coefficient and 'B' is constant."
Given, the price of the shirt before the discount is $22.
Let, the price of the shirt before the discount is $x.
Now, total price of the shirt and shoe $(22 + x).
Now, the total discount on shirt and shoe is
= $(22 + x) × 50%
= $(22 + x) × 0.5
= $(11 + 0.5x)
Now, (11 + 0.5x) = 18.55
⇒ 0.5x = 18.55 - 11
⇒ x = 7.55 ÷ 0.5
⇒ x = 15.10
Therefore, the price of the shoe before discount is $15.1.
Learn more about linear equation here: https://brainly.com/question/8163729
#SPJ2
This is the form of energy that an object has due to its condition (for example, streched spring): *
Answers
Answer:
The energy is potential energy.
plz help me to answer this
Answers
Answer:
1 a 2 b 3 d 4 c 5 c 6 b
Step-by-step explanation:
I need help please
Answers
Answer:
its A i believe sorry if its wrong..
Answer:
A and C
Step-by-step explanation:
25m because its 25 per person
5m because 5 dollars per person
the number of people can vary so you need a variable next to each (M)
sorry i cant explain lol
8 - 5b = -7 ?? whats the b
Answers
Answer:
b=3
Step-by-step explanation:
Isolate the b:
8-5b=-7Subtract 8, -5b=-15Divide by -5, b=3Check your answer:
8-5(3)=-78-15=-7-7=-7you subtract the 8 from the left then subtract it from the right giving you -5b=-15 then divide the -5 by both sides
Please help me on this I do not understand
Answers
A rectangle has a length of 8 feet and a width of 3 feet. If a right triangle has a height of 3 feet, what length would its base be if it has the same area as the rectangle?
Answers
Have a great day!!!!!
What is the value of the AMPLITUDE for WAVE B?
What is the value of the WAVELENGTH for WAVE B?
Which wave has the higher frequency A or B?
Answers
A box of laundry soap has `25\%` more soap in its new box. The new box holds `2` kg. How much soap did the old box hold?
Answers
Answer:
Ans is 1 .6kg
Step-by-step explanation:
old box holds 1.6kg
what is 100 div 2 div 10
The answer you get is the number of points your getting
Answers
Answer:
5
because:
100 ÷ 2 = 50
then:
50 ÷ 10 = 5
Answer:
5
Step-by-step explanation:
How to find
Divide the one-column dividend by the divisor.
Multiply the divisor by the quotient in the right place column.
Subtract the product from the one's column.
Solve
100 ÷ 2 = 50
Then:
50 ÷ 10 = 5
I only need help with (b).plz answer asap!!
Answers
Answer:
16
Step-by-step explanation:
If the real rectangle is 8x6, the area would be 48.
To find 1/3 of 48, you would do 48/3.
Hence,16
Oceanside Bike Rental Shop charges a 16 dollar
fixed fee plus 7 dollars an hour for renting a bike.
Nancy paid 51 dollars to rent a bike. How many
hours did she pay to have the bike checked out ?
Answers
Answer: she rented the bike for 5 hours
Step-by-step explanation:
51 - 16 = 35
35/ 7 = 5