A student evaluated −4 + (−9 1/2) and got an answer of 5 1/2. What might the student have done wrong?

Answers

Answer 1

Answer:

Never converted -9 1/2 into an improper fractionAdded the two numbers together instead of subtracted

I hope this helps!


Related Questions

Rachel finished a meal at a diner and received a bill for $10.99. She charged the bill along with a 15 percent gratuity to her credit card. What is the total amount she charged to her credit card? Round to the nearest cent if necessary. A.) $11.14. B.) 12.54 C.) 13.19 D.) 13.73

Answers

Answer:

B 12.54

Step-by-step explanation:

10.99 times 0.15 equals 1.55

10.99 + 1.55 = 12.54

Answer:

$10.99 + 15% = $12.63

Step-by-step explanation:

A winter jacket cost $200. It is on sale for 30% off when you have a coupon to save another 20%. How much do you have to pay for the jacket before taxes

Answers

Answer:

$100

Step-by-step explanation:

20%+30% = 50% off

50/100 = 1/2

200*1/2 = $100

I WILL GIVE BRAINLIEST AND 36 Points
Refer to screenshots

8. Which line on the graph represents the equation y=3x-2?
line A
line B
line C
line D

9.Which equation represents the graph?

y = |x| – 4

y = |x – 4|

y = |x + 4|

y = |x| + 4

12.Which equation represents the graph?

y = |x| + 6

y = |x – 6|

y = |x| – 6

y = |x + 6|

17.Which set of ordered pairs corresponds to the graph?

{(5, 1), (4, 2), (0, –1), (–2, 3), (–5, 1)}

{(–2, 3), (5, 1), (–5, 1), (1, 0), (4, –2)}

{(–5, –1), (–2, 3), (0, –1), (4, –2), (5, 1)}

{(–2, 4), (–1, –5), (–1, 0), (1, 5), (3, –2)}

19.Which equation is represented by the table?
Y=-|X-1|-4
Y=|X-1|-4
Y=-|X+1|-4
Y=|X+1|-4

Answers

Answer:

1.a

2.c

3b

4.c

5.a or b

Step-by-step explanation:

What is the area of the triangle?

Answers

Answer:

4

Step-by-step explanation:

The formula of the area of a triangle is 1/2 times base times height

1/2 .4.2 equals 4


can Yhu help me plzzz!!!!

Answers

Answer:

f^-1 (x) =7 − 21x

Step-by-step explanation:

Hope this helps!

Plz give brainliest

An angle measures 40 more than the measure of its supplementary angle. What is the measure of each angle

Answers

Sum of two angles that are supplementary = 180°

Let the first angle be x .

Then the other angle = x + 40

Measure of each angle =

[tex]x + x + 40 = 180[/tex]

[tex]2x + 40 = 180[/tex]

[tex]2x = 180 - 40[/tex]

[tex]2x = 140°[/tex]

[tex]x = \frac{140}{2} [/tex]

[tex]x = 70°[/tex]

Which means :-

The first angle:-

[tex]= x = 70°[/tex]

The second angle :-

[tex]x + 40[/tex]

[tex]70 + 40[/tex]

[tex] = 110°[/tex]

Therefore , the two supplementary angles are 70° and 110° .

Answer:

65 and 25

Step-by-step explanation:

can anyone help with this please? 20 points for it

Answers

Answer:

9

Step-by-step explanation:

3^2 = 9

A basketball player is 90 inches tall. A model is created of the player using a scale factor of 1:20. How tall is the model in inches?

Answers

Answer:

4.5

Step-by-step explanation:

another way to write 2 5/2×4

Answers

Answer:

4 1/2(4)

Step-by-step explanation:

djjdiebjeidjjexjjebej

The measure of angle MBT ?

Answers

Answer:

Oooo I’m doing a question just like that one on my hw

Step-by-step explanation:

-0.6 repeating terminating or neither

Answers

Answer:

Repeating.    

Step-by-step explanation:

i think it is repeating.

A shop sells bagels for $5 per dozen. You can use the table to answer
the questions. Explain your reasoning. (Show all your work)

1. At this rate, how much would 6 bagels cost?

2. How many bagels can you buy for $50?

Answers

Answer with step-by-step explanation:

Lets says the number of bagels is B and the price in dollars is D.

Equation: D × 12/5 = B

1. 6 is half of a dozen, which means the price would be half of 5, 2.5

2. $50 is 10× the amount of $5, so the amount of bagels would be 10 × 12, which is 120 bagels.

Hope this helped! (brainliest please)

A Dozen mathematically means 12.

It is important to note that:

$5 = 12 bagels

1) 12 bagels = $5

          6 bagels = ?

Cross Multiply

6 bagels  x $5 / 12

= $7.50

Therefore, 6 bagels would cost $7.50

2) $5 = 12 bagels

         $50 = ?

Cross multiply

$50 x 12 bagels / $5

= 120 bagels

Therfore, you can buy 120 bagels for $50

To learn more, visit the link below:

https://brainly.com/question/9094069

Please help me please I feel like crying cause I can't do it...

Answers

Answer:

1. 39

2. 15

3.329

4. 16

5. 300

Step-by-step explanation:

Just divide the first two numbers and then multiply the quotient by the last number. You'll be ok, you've got this, keep your head up!

1. 52/4 = 13 and 13 x 3 = 39

2. 45/9 = 5 and 5 x 3 = 15

3. 470/10 = 47 and 47 x 7 = 329

4. 10/2.5 = 4 and 4 x 4 = 16

5. 125/2.5 = 50 and 50 x 6 = 300


15 points please answer this ;(

Answers

i don’t think its mathematic question!

Answer:

see explanation

Step-by-step explanation:

(1)

Given

A = bh ( isolate h by dividing both sides by b )

[tex]\frac{A}{b}[/tex] = h

(2)

Using the result from (1)

h = [tex]\frac{A}{b}[/tex] = [tex]\frac{45}{9}[/tex] = 5 ft

Easy 7th grade work sheet ! Please help , I’ll give brainliest (all answers)

Answers

1. +16
2. -11
3. -6
4. 9
5. 8
6. 5
7. Simply place dots on the numbers stated, which are 11, -5, and -8.
8. The absolute value of a non-zero number is positive because absolute value is a magnitude, and is either positive or zero. The absolute value of any non-zero number can be thought of as its distance from zero, which will always be positive.

Please mark as branliest if i helped!!:)

please answer this I really need help if you just take my points ill report I just need help pleassesssseessesesee!!!!!!!! (15 points!)

Answers

Answer:

1.b 2.a      i hope this is right

Step-by-step explanation:

find the difference
5/6-7/10​

Answers

Answer:

2/15

Step-by-step explanation:

BRANIEST PLS

Answer: 2/15 is the answer hope this help

Step-by-step explanation:

Which value is a perfect square root?
O 12
O 24
O 49
O 63

Answers

49 comes out as a perfect square root

Answer:

It's 49

Step-by-step explanation:

Use the following federal tax table for biweekly gross earnings of a single person to help answer the question below.
A 9-column table with 7 rows is shown. Column 1 is labeled If the wages are at least with entries 720, 740, 760, 780, 800, 820, 840. Column 2 is labeled But less than with entries 740, 760, 780, 800, 820, 840, 860. Column 3 is labeled And the number of withholding allowances is 0, the amount of income tax withheld is, with entries 80, 83, 86, 89, 92, 95, 98. Column 4 is labeled And the number of withholding allowances is 1, the amount of income tax withheld is, with entries 62, 65, 68, 71, 74, 77, 80. Column 5 is labeled And the number of withholding allowances is 2, the amount of income tax withheld is, with entries 44, 47, 50, 53, 56, 59, 62. Column 6 is labeled And the number of withholding allowances is 3, the amount of income tax withheld is, with entries 26, 28, 31, 34, 37, 40, 43. Column 7 is labeled And the number of withholding allowances is 4, the amount of income tax withheld is, with entries 14, 16, 18, 20, 22, 24, 26. Column 8 is labeled And the number of withholding allowances is 5, the amount of income tax withheld is, with entries 1, 3, 5, 7, 9, 11, 13. Column 9 is labeled And the number of withholding allowances is 6, the amount of income tax withheld is, with entries 0, 0, 0, 0, 0, 0, 1.
Molly has biweekly gross earnings of $839.52. By claiming 1 more withholding allowance, Molly would have $16 more in her take home pay. How many withholding allowances does Molly currently claim?
a.
1
b.
2
c.
3
d.
4



Please select the best answer from the choices provided


A
B
C
D

Answers

Answer:

Hi! The answer is actually C. 3

Step-by-step explanation:

I just did the practice and it said 3 was the answer:)

Based on the number of exemptions claimed by Selina and her biweekly gross pay, her state tax will be $16.80.

Here, we have,

given that,

from the given information, we get,

Selina is to pay 21% of her federal taxes.

Seeing as she claims a single exemption and falls in the $840 to $860 bracket, the table shows that her federal tax contribution would be $80.

State taxes are therefore:

= 80 x 21%

= $16.80

Find out more on tax at

brainly.com/question/11308445.

#SPJ7

For some reason, in our history class, there are 14 more boys than there are girls. If a total 32 students are in the class, how many boys and how many girls are there

Answers

Answer:

We can assume X is the number of girl, so the number of boy should be X+6.

 

Based on question, we can get X+X+6=32

2X+6=32

2X=26

X=13

So the answer is, 13 girls are in the class.

Step-by-step explanation:

HELP ASAP! PLEASE!

What relationship between the population of Ohio and the number of years displayed in the scatter plot

Answers

Answer:

The number line has to be shown in a picture if you want more specific instructions from others.

Step-by-step explanation:

Show a picture

Which of the following statements does not represent the same value as the others?

the distance between 0 and −9
the absolute value of negative 9
the opposite of 9
the absolute value of 9

Answers

the distance between 0 and −9

the absolute value of negative 9

the opposite of 9

the absolute value of 9

-7 + a = 3
Given the above equation, what is the value of
10-[(a -3) - 7]?

Answers

Answer:

10

Step-by-step explanation:

a=3+7

a=10

10-[(10-3)-7]=

=10-[7-7]=

=10-0=

=10

The solution of expression 10 - [(a - 3) - 7] would be 10.

Given that,

The equation is,

-7 + a = 3

Now, we can simplify the equation as,

- 7 + a = 3

a - 7 = 3

Subtract 3 on both sides,

a - 3 - 7 = 0

(a - 3) - 7 = 0  .. (i)

Here, the equation to simplify is,

10 - [(a - 3) - 7]

Substitute the value from equation (i),

10 - 0

= 10

Therefore, the solution of expression is 10.

To learn more about the equation visit:

brainly.com/question/28871326

#SPJ4

Please answer. Which is the graph of the solutions.

Answers

Answer:

x < -8, third from top option in the picture.

Step-by-step explanation:

5(2x - 4) < -100

10x - 20 < -100

10x < -80

x < -8

Answer:

3rd option from the top (open circle arrow going left)

Step-by-step explanation:

5(2x-4) is less than - 100

5 times 2x is 10x and 5 times - 4 is - 20 so,

10x - 20 is less than - 100

now do inverse operations to isolate x, add 20

- 20 plus 20 is 0 and -100 plus 20 is - 80

10x is less than -80

divide both sides by 10 and you get,

x is less than - 8

cody's Bikes rents bikes for $18 plus $5 per hour. Mark paid $48 to rent a bike. For how many hours did he rent the bike.

Answers

He rented the bike for 6 hours. If Cody charges an 18 dollar fee up front you subtract that from the total 48 to get 30. Then once you get down to the what he payed for the time used you divide it by 5 because that’s the hourly fee and get 6 hours

Answer:

Cody rented the bike for 6 hours

Someone plz answer

the school jimmy goes to is selling tickets to a fall musical. om the first day of ticket sales the school sold 9 adult tickets and 14 child tickets for $101. The school took in $88 on the second day by selling 12 adult tickets and 7 critical tickets. What is the price each of one adult ticket and one child ticket.

Answers

Answer:

if my math is correct it is $4.39

Step-by-step explanation: do not fully trust this

Ok serous question this has nothing to do with my other questions would you guys care if I committed ya know

Answers

Answer:

I don't know you but I care. I am always here to talk. For real I don't have a life. Lol

Step-by-step explanation:

Yes we would care, and please don’t do it. I know life right now is not that great, but don’t do it. Your family is going to be sad, and they are going to be going through a lot of pain. Plus life of amazing and we need to cherish every moment we have left.

What is the equation of the line that passes through the point (1,0) and has a slope
of 1?

Answers

Answer:

x=y

Step-by-step explanation:

The answer is x=y if the slope is 1,1 | 2,2 | 3,3 | etc

What is the equation of the vertical line through -8, 5

Answers

Answer:

The answer of the following questions is y=3x-19

solve for U

32=2u

Simplify your answer as much as possible.

Answers

Answer:

16

Step-by-step explanation:

32 divided by 2 equals 16 so u = 16

U=16
You do 32/2 to get U, 32/2=16 so that would be your U.

Hope this helps!
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