Holly finds that (11m – 13n + 6mn) – (10m – 7n + 3mn) = m – 20n + 9mn. What error did Holly make?
Answers
Answer: A ) She only used the additive inverse of 10m when combining like terms .
Step-by-step explanation:
Holly only used the additive inverse of 10m when combining like terms. The equality is erroneous because the equation was evaluated well. The calculations should be as follows:
11m -13n + 6mn - 10m + 7n - 3mn = 1m - 6n +3mn
She should have subtracted 13n and 7n then take the negative value. Also, subtract 6mn and 3mn.
Answer:
A
Step-by-step explanation:
i took test
Related Questions
Please Help Hurry trying to finish this puzzle!
___1. Students enrolled in honors math increased by 12% this year. if s represents students then an expression to represents this is 1.12s. True or False?
___2. Katie went out for dinner with her friends and left a 17% tip. if b represents the bill, an expression that represents the total bill she will pay is 0.83b. True or False?
___3. The clothing store was having a sale of 45% off all items. if p represents the original price of the clothing items. An expression to show the price of all the items after the discount is 1.45p. True or False?
___4. The expressions 0.65p is an expression that represents 35% off a cell phone (p). True or False?
___5. Josh was earning $12 an hour and got a 4% raise. The expression 12 x. 04 will show how his new hourly rate is calculated. True or False?
___6. The expression 1.2p represents the total bill given to a pizza delivery man if he is given a tip of 20% and p represents the cost of the pizza. True or False?
40 Points Plus Brainly! Please Hurry!
Answers
Answer:
1. True
2.False
3.False
4. False
5.True
6.False
Step-by-step explanation:
find the area of this figrue
Answers
Answer:
25 mi
Step-by-step explanation:
9x2 plus 1x5 plus 1x2 equals
18+5+2=25
Solve the inequality and graph the solution.
−3p + 6.7 ≥ −4.4
number line with open circle plotted at 3.7 and arrow pointing right
number line with closed circle plotted at 3.7 and arrow pointing left
number line with open circle plotted at 3.7 and arrow pointing left
number line with closed circle plotted at 3.7 and arrow pointing right
Answers
The solution to inequality is p ≤ 3.7 or p ∈ (-∞, 3.7] and it will be on a number line with a closed circle plotted at 3.7, and the arrow pointing left option (B) is correct.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
It is given that:
The inequality is:
−3p + 6.7 ≥ −4.4
After solving the above inequality:
−3p ≥ −4.4 - 6.7
-3p ≥ -11.1
p ≤ 3.7
Thus, the solution to inequality is p ≤ 3.7 or p ∈ (-∞, 3.7] and it will be on a number line with a closed circle plotted at 3.7, and the arrow pointing left option (B) is correct.
Learn more about inequality here:
brainly.com/question/19491153
#SPJ5
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
The scatterplot models the relationship between the length of a Louisiana alligator and the width of the alligators belly.Which is the approximate slope of the line of best fit.
A: -1
B: 3
C: 2/3
D: 3/10
Answers
A retirement community has a sign at its main entrance that says "Residents over the age of 55 welcome." Which of the following inequalities best represents the age of residents welcome in the retirement community?
a) z > 55
b) z < 55
c) z ≥ 55
d) z ≤ 55
Answers
c) z ≥ 55
This inequality states that the age 'z' should be greater than or equal to 55.
Planet X is 6 1/3 light-years away from Earth. Planet Y is 1/12 of a light-year away from Earth. How much farther away is Planet X?
Answers
Answer: 1/2= 5/10
5/10 - 3/10 = 2/10 or 1/5
so planet X is 1/5 of a light-year closer
Step-by-step explanation:
Find the solution to 5 divided 1/4 , using either the flip and multiply method or common denominator method.
5/4
20
5
1/20
Answers
Answer:
20
Step-by-step explanation:
\(5\div \frac{1}{4} \\\\5*4\\\\20\)
I flipped 1/4 to 4/1, which is equivalent to just 4.
Hope this helps!
Geometry
Answer with a proper explanation
Answers
Answer:
15 sides
Step-by-step explanation:
As we know the full angles of a polygon is 360°
And
Each side has angle 24°
So,
n = 360/24
n = 15 sides
I hope my answer helps you.
The polygon has 5 sides.
Step-by-step explanation:
Given in the diagram, the angle between the ends of each side is given i.e. 24degrees between ends of a side from the centre. Or it can also be said that each side of the polygon subtends an angle at the centre 'O' i.e. each 24*.
=> We know that sum of angles around a point = 360*, so sum of angles around centre = 360*
And 24* in the centre subtends a side of the polygon;
Using the logic - no. of sides = 360*/24* = 15 = 15 sides
How many solutions does the system have? { � = 9 � − 5 � = 9 � + 6 ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ y=9x−5 y=9x+6 Choose 1 answer: Choose 1 answer: (Choice A) Exactly one solution A Exactly one solution (Choice B) No solutions B No solutions (Choice C) Infinitely many solutions C Infinitely many solutions
Answers
Option (C) Infinitely many solutions
A gift shop sells rectangular glass dishes in different sizes. Some of the dimensions are given in the table. Fill in the missing dimensions.
Answers
Answer: 3, 4, 5, 5, 4
Step-by-step explanation: For the 18 times 3x2 which is 6 now 6x?= 18 so the ? is 3
3x2=18 6x?=18 (3)
3x2=6 6x?=24 (4)
3x2=6 6x?=30 (5)
4x2=8 8x?=40 (5)
4x3=12 12x?=48 (4)
Answer: 3, 4, 5, 5, 4
Step-by-step explanation: 3 x 3 = 9. 9 x 2 = 18. The length in inches is 3 inches. 2 x 4 = 8. 8 x 3 = 24. The width in inches is 4 inches. 3 x 2 = 6. 6 x 5 = 30. The height in inches is 5 inches. 5 x 4 = 20. 20 x 2 = 40. The length in inches is 5 inches. 4 x 3 = 12. 12 x 4 = 48. The height in inches is 4 inches.
Simplify ) 3/4 of 8/6
Answers
Answer:
First of all, to calculate what a fraction of a fraction is, we multiply them:
\(\frac{3}{4}*\frac{8}{6}\) = \(\frac{3*8}{4*6}\) = \(\frac{24}{24}\) = 1
So now we know that three quarters of 8/6 is equal to 1.
We could also simplify 8/6 dividing both numerator and denominator by the same number:
\(\frac{8}{6}=\frac{\frac{8}{2}}{\frac{6}{2}}=\frac{4}{3}\)
And see that 3/4 of 4/3 is also equal to 1:
\(\frac{3}{4}*\frac{4}{3}=\frac{3*4}{4*3}=\frac{12}{12}\) = 1
Answer: 1
Step-by-step explanation:
When you come across any question that states [a of b] means a × b.
If you are still confused, I will provide some examples.
1/2 of 1/2= 1/4 (1/2 × 1/2=1/4)3/5 of 5= 3 (3/5 × 5=3)This also applies to your question.
3/4 of 8/6= 3/4 × 8/6=3/4 × 4/3=1Hope this helps!! :)
Please let me know if you have any question
A car's speedometer is reading 55 miles per hour. The percent of error is 5%. What is the actual speed of the car? Round your answer to the nearest mile per hour.
A) 51 or 54 mph
B) 50 or 60 mph
C) 53 or 56 mph
D) 52 or 58 mph
Answers
Solution: 55 times 5%=2.75%
2.75% + 55=57.75
simplify the expression y^2 + 3y^2
Answers
Answer: 4y^2
Step-by-step explanation: Please view the attached.
Explanation:
1y^2 + 3y^2
(1+3)y^2
= 4y^2
Which list orders the numbers from least to greatest?
Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth
A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3
Answers
Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth
Hope my answer helps you✌️
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
Please Help!!!!
This is a re-post I really need help tho!
Please and Thank-you
I suck at math so please help me!!
Answers
Answer:
the middle is zero count up the lines
Step-by-step explanation:
this looks complicated, that's my best guess
Triangle DEF has the following characteristics: a right angle and two other angles that have measures of 100° and 10°.
How many different triangles can be drawn with these angle measures?
More than 2 triangles are possible.
No triangle is possible.
Exactly 2 triangles are possible.
Exactly 1 triangle is possible.
Answers
No triangle is possible. The sum of the interior angles of a triangle must be 180°. However, the sum of the given angles is 100° + 10° + 90° = 200°, which is greater than 180°. Therefore, no triangle can be drawn with these angle measures.
) Last year's computer models cost $1,480. If they are on sale for 20% off, what is the discounted price?
Answers
I think it is 1,184
But I'm not sure
Please help!! (I added a screenshot)
Answers
i am postitive its 40
so i have to do integer math and Im not really good at it
Answers
Answer:
-25, 22, -65, 0
Step-by-step explanation:
Find the value of x please :)
Answers
Answer:
32 degrees
Step-by-step explanation:
The sum of all angles in a triangle is 180 degrees.
A right angle (The one marked by a small square on the bottom left) measures 90 degrees.
You're given that the other two angles in the triangle measure 58 and x degrees.
To find x, we'll find the sum of all angles, and equate it to 180.
The sum of all angles = 90 + 58 + x = 148 + x degrees
\(148 + x = 180 \text{ // -148}\\\cancel{148 -148} + x = 180 - 148\\x = 32^{\circ}\)
Suppose figure A underwent a dilation to produce figure B. Are figure A and figure B similar?
Group of answer choices
No, because even though their side lengths are the same, their internal angles are different.
No, because both their internal angles and their side lengths are different.
Yes, because even though their side lengths are different, their internal angles are the same.
Yes, because both their side lengths and their internal angles are the same.
Answers
Simple math, earn points!
Answers
Answer:
$7000
Step-by-step explanation:
This problem seems scary at first sight, but don't be intimidated. It is actually pretty simple.
The column of equations (starting with 0.1d) at the right of T(d) is a list of option based on d, the taxable income. If d is less than or equal to (≤) 9875, than the equation is T(d) = 0.1d.
It shows that Noam has 90000 dollars for d, or the taxable income, and Betty has 120000 dollars.
Now, let's find the equations by plugging in 90,000 for d first.
90,000 is greater than 85, 526 and less than 163,300 (85, 526 ≤ 90,000 ≤ 163300).
Then we plug in 120,000 dollar to find the corresponding equation.
120000 is greater than 85, 526 and less than 163, 300 (85, 526 ≤ 120,000 ≤ 163300).
So the chosen equation is:
T(d) = .24( d -85525) + 14605.5
Plug in the Noam's number for d
T(d) = .24(90,000 - 85, 525) + 14, 605.5
T(d) = .24(4475) + 14,605.5
T(d) = 1074 + 14,605.5
T(d) = 15, 679.5
Now Plug in Betty's number for d
T(d) = .24 (120,000 - 85, 525) +14, 605.5
T(d) = .24( 34475) + 14, 605.5
T(d) = 8274 + 14, 605.5
T(d) = 22, 879.5
We are finding how much more tax does Betty pay, so we subtract 15, 679.5 from 22, 879.5.
22, 879.5 - 15, 679.5 = 7200
Betty pays $7000 more tax than Noam does.
help please!!
show how 4 × 3/4 can be solved using multiplication and division.
Answers
Answer:
Shown below.
Step-by-step explanation:
How can you multiply a whole number and a fraction?To multiply a whole number and a fraction, you can think of it as repeated addition. For example, if you want to multiply 5 and \(\frac{1}{4}\), it means adding the fraction \(\frac{1}{4}\) five times: \(\frac{1}{4} +\frac{1}{4} +\frac{1}{4} +\frac{1}{4} +\frac{1}{4} =\frac{5}{4}\).
If you add \(\frac{3}{4}\) by itself 4 times:
\(\frac{3}{4}+ \frac{3}{4}+ \frac{3}{4}+ \frac{3}{4}=\frac{12}{4}\)Now, you can divide 3 by 4 to get \(\frac{3}{4}\).
3 ÷ 4 = \(\frac{3}{4}\)This is how you can solve 4 × \(\frac{3}{4}\) using multiplication and division.
Step-by-step explanation: hope this helps ♡
Luis wants to buy a skateboard that usually sells for $79.83. All merchandise is discounted by 12%. What is the total cost of the skateboard if Luis has to pay a state sales tax of 6.25%. Round your intermediate calculations and answer to the nearest cent.
Answers
Answer:
70.25 (i would double check)
Step-by-step explanation:
PLEASE ANSWER FAST!!!!
On a family camping trip, 5 backpacks can fit in the trailer for every 3 people. If 9 people are going on the trip, how many backpacks can fit?
12 backpacks
14 backpacks
15 backpacks
24 backpacks
Answers
Answer:
15
Step-by-step explanation:
3 people=5 bags
3+3+3=9
5+5+5= 15
someone plz help me with this
Answers
Answer: (A) 4(3x-2
Step-by-step explanation:
Maria is baking apple cinnamon muffins. Use the recipe card to answer the questions.
Maria puts some of the chopped apples in a bowl. She leaves out
1/2 cup of the apples to use later in the recipe. Next, she adds all of the oil.
What is the total amount of the apples and oil in the bowl?
Answers
Answer:
3- 1 1/4-1/2, 5/4-2/4= 3/4 + 1/4= 1 cup of apples and oil
Step-by-step explanation:
I am really good at math and I did the quiz
Rafael is ordering an ice cream dessert. He must order a size, a flavor of ice cream, and a topping. There are 3 sizes, 3 flavors, and 1 topping to choose from. How many different ice cream desserts could he order?
Answers
Answer:
9
Step-by-step explanation:
Multiply the number of sizes by flavors, the by toppings.
3*3*1