Cecilia simplified an expression. Her work is shown below.

(6 and one-half + 2 and three-fourths) minus 1.5 times (4.5 divided by 0.5)
Step 1 9 and one-fourth minus 1.5 times (4.5 divided by 0.5)
Step 2 7.75 times (4.5 divided by 0.5)
Step 3 7.75 times 9
Step 4 69.75

Where did Cecilia make her first mistake?
step 1
step 2
step 3
step 4

WIll mark brainliest !

Answers

Answer 1

Answer:second one

Step-by-step explanation:

you then have to distribute the answer not subtract 9 1/4 from 1.5

you have to do the parenthesis next

4.5/0.5=45/5=9

then

1.5*9= 13.5

then

9.25-13.5 which I think you are capable of solving

Answer 2

Answer:

Answer is B

Step-by-step explanation:

I did the test


Related Questions

Pls help im in the test i’ll give 50 points

Answers

Answer:

I think it's A

Step-by-step explanation:

the point is touches the y axis is 2

Which equations represent the line that is parallel to 3x - 4y = 7 and passes through the point (-4,-2)? Select two
options
y=-3/4x+1
3x - 4y = -4
4x - 3y = -3
y-2 = -3/4(x - 4)
y+2 =3/4(x + 4)

Answers

Answer:

y = 3/ 4 x + 1

Step-by-step explanation:

Write a system of linear equations that has (-4, 8) as the solution. Once you have made your system of equations, solve it algebraically to show that you do indeed get the solution (-4, 8).

Answers

Answer:

See below

Step-by-step explanation:

(-4, 8) has to be the solution.

1st equation: -4x+8y = 1

2nd equation: 8x - 4y = 1

These should work. Do the matrix-substitution combo method to see:

-4  8  1

.8 -4  -1

Reduce and and matrix-substitution combo:

1 0 -4

0 1  8

The reduced eckerd form of the matrix shows that the solutions are (-4, 8)

Therefore it -4x + 8u = 1 and 8x - 4y = 1 are the two equations for the system.

7. Melissa bought 8 yards of string to make bracelets. She wants to cut the string in equal pieces that is 1/2 yard
long. How many pieces of strings with Melissa have?
A 4
B 16
C 40
D 50
Please answer this it’s for a test and I suck in math I don’t even know how I’m in pre ap

Answers

Step-by-step explanation: To find this answer, you want to divide the amount of yards in half.  This is the case since each string is 1/2. So as a result, each yard of whole string will produce 2 strings.  To find your final answer, multiply 2 strings by 8 yards.  

In 2016, the cost of 2 ounces of pure gold was $2,640. Complete the double number line to show the cost for 1, 3, and 4 ounces of gold.

Answers

Answer:

1 would be 1320

3 would be 3960

4 would be 5280

Step-by-step explanation:

The cost of 1, 3 and 4 ounces of gold in 2016 was $1,320, $3,960 and $5,280 respectively.

Cost of 2 ounces of gold in 2016 = $2,640

Cost of 1 ounce of gold in 2016 = Cost of 2 ounces of gold in 2016 ÷ 2

= $2,640 ÷ 2

= $1,320

Cost of 3 ounces of gold in 2016 = Cost of 1 ounce of gold in 2016 × 3

= $1,320 × 3

= $3,960

Cost of 4 ounces of gold in 2016 = Cost of 1 ounce of gold in 2016 × 4

= $1320 × 4

= $5,280

Therefore, the cost of 1, 3 and 4 ounces of gold in 2016 are $1,320, $3,960 and $5,280 respectively.

Read more:

https://brainly.com/question/23869627

What is the value of the expression below when w = 2?

Answers

5x2 correct is the answer

Answer:57

Step-by-step explanation:

Pick < ,< or = to make the statement true. 11 ..... 52/9

Answers

Answer:

11>52/9

Step-by-step explanation:

52/9 = 5.7777....

11> 5.77777....

Please help!

Jill's father is a pilot. The airplane he flies can carry 396 passengers. If each passenger is allowed to take 60 pounds of luggage, how many total pounds can the plane carry in luggage?

Answers

Answer:

23760 pounds

Step-by-step explanation:

396 passengers

60 pounds for each passenger

total pounds plane can carry=passengers × pounds

= 396×60

= 23760 pounds

....

ASAP I need help on this​

Answers

Answer: x = 6x/5

Step-by-step explanation:

Answer:

x = 10/3

Step-by-step explanation:

[tex]\frac{x}{2} + \frac{2}{2} = \frac{4x}{5}[/tex]

[tex]\frac{x + 2}{2} = \frac{4x}{5}[/tex]

[tex]x + 2 = \frac{8x}{5}[/tex]

5x + 10 = 8x

10 = 3x

x = 10/3

PLEASE NEED HELP:(

Joseph borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Joseph paid for the book when he returned it x days after the due date:

2 + 0.25x

What does the coefficient of the expression represent?

A:The fixed rental for the book
B:The total late fee for the book
C:The late fee per day for the book
D:The number of days the book was overdue

Answers

Answer:

C. The late fee per day for the book

Step-by-step explanation:

“ The library charged a fixed rental for the book and a late fee for every day the book was overdue.”

Answer:

C

Step-by-step explanation:

the problem says there is a late fee for every day the book is overdue, 'x' represents the days, so multiplying the two together filling in 'x' would give you the total late fee amount.

helpp asappp it’s just one question!!!

Answers

Not only she buying candy she getting diabetes
The answer is 9 pounds

Can somebody please tell me what 1 1/3+(−5/6) is??

Answers

Answer:

1/2

Step-by-step explanation:

Hi there !

1  1/3 + (-5/6) =

= (1*3+1)/3 - 5/6

= ²⁾4/3 - 5/6

= 8/6 - 5/6

= (8 - 5)/6

= 3/6

= 1/2

Good luck !

Which of the following is the closest approximation to V20 ?
A 2
B. 3
C. 4
D. 5

Answers

Answer:

B.3

Step-by-step explanation:

Why because like 3 my favorite number and i had this same problem and the answer was 3.

Write the equations of the following lines.

a. The line is parallel to y=3x+2 and passes through the point (0,0).

b. The line is perpendicular to the graph of y=x+1 and passes through the point (1,1).

PLS HELP! THANK YOU!

Answers

Answer:

a. y= 3x

b. y= -x + 2

Step-by-step explanation:

Its the answer

Answer:

b is y=2x-1 and i dont know for a. im also stuck on it

Step-by-step explanation:

Stephanie took a science exam that had two parts. Part 1: She got 16 questions correct, which was 45 of the number of part 1 questions. Part 2: She got 16 questions correct, which was 23 of the number of part 2 questions. What was the total number of questions on Stephanie's exam?

Answers

Given :

Stephanie took a science exam that had two parts. Part 1: She got 16 questions correct, which was 4/5 of the number of part 1 questions. Part 2: She got 16 questions correct, which was 2/3 of the number of part 2 questions.

To Find :

The total number of questions on Stephanie's exam.

Solution :

Let, number of questions in Part 1 is x :

[tex]16=\dfrac{4}{5}x\\\\x=20[/tex]

Let, number of questions in Part 2 is y :

[tex]16=\dfrac{2}{3}y\\\\y=24[/tex]

Therefore, total number of questions on Stephanie's exam are 20 + 40 = 60.

Hence, this is the required solution.

What is the greatest common factor of 16 and 13

Answers

Answer:

1

Step-by-step explanation:

The only factor they have in common is 1

how do you simplify this?

Answers

Answer:

tan x

Step-by-step explanation:

(tan-x)[sec(pi/2)-x] (sin-x)

We know that tan (-x) = - tan (x)  and sin (-x) = - sin (x)

-(tanx)[sec(pi/2)-x] -(sinx)

(tanx)[sec(pi/2)-x] (sinx)

Using the identity sec = 1/ cos

sec ( pi/2 -x) =1/cos ( pi /2 -x)

We know that cos (s-t)=cos (s) cos(t) + sin (s) sin (t)

1/ ( cos  pi/2  cos x + sin pi/2 sin x) = 1/(0 cos x - 1 sinx) = 1 / sinx

Replacing into the equation

(tanx)[1/ sinx] (sinx)

tan x

What’s the common difference for this arithmetic sequence: 23,__,__,50...​

Answers

9514 1404 393

Answer:

  9

Step-by-step explanation:

The 4th term is the sum of the first term and 3 times the common difference.

  50 = 23 + 3d

  27 = 3d

  9 = d

The common difference is 9.

__

The first few terms are ...

  23, 32, 41, 50, 59, 68, ...

Ross said that if (x² + a)(x2 + b) = O means that (x2 + a) = 0 or (x2 + b) = 0, then(x+
a)(x2 + b) = 2 means that (x2 + a) = 2 or (x? b) = 2. Do you agree with Ross? Explain
why or why not.

Answers

9514 1404 393

Answer:

  no; 2 has many factors besides 2

Step-by-step explanation:

The zero product rule says the only way a product may have a value of zero is if one or more factors is zero. That is why one of the factors of ...

  (x^2 +a)(x^2 +b) = 0

must have a value of 0.

__

The same cannot be said of 2. We might have (1/2)(4) = 2, for instance, in which neither factor is 2. That a product is 2 is not a requirement that one of the factors be 2.

a rectangular tank is 76cm long, 50cm wide and 40cm high, how many litres of water can it hold?​

Answers

Answer:

Volume of a cuboid or rectangular tank = side × side × side

or

volume of a cuboid or rectangular tank = length× width × height

volume of the rectangular tank = 76 × 50 × 40

volume of the rectangular tank = 152000cm³

Therefore the rectangular tank can hold 152000cm³ litres of water

1
The price of a video game was reduced from $60 to $45. By what percentage
was the price of the video game reduced?

А
15%
B
75%
C
25%
D
40%

Answers

Answer:

C, 25%

Step-by-step explanation:

25% = 1/4

1/4 of 60 = 15

60 - 15 = 45

i rlly need help im stuck can someone help me out. What the total price?

Answers

Your total price is 312.
Add the price of the trampoline and the sales tax

Composite functions
g(d) = 2d - 5
h(d) = -4d +3
Find (hºg)(d)

Answers

Answer:

[tex](h\circ g)(d)=-8d +23[/tex]

Step-by-step explanation:

Composite Function

Given g(d) and h(d) real functions, the composite function named (hog)(d) is defined as:

[tex](h\circ g)(d)=h(g(x))[/tex]

For practical purposes, it can be found by substituting g into h.

The functions g and h are given as:

[tex]g(d) = 2d - 5[/tex]

[tex]h(d) = -4d +3[/tex]

Substituting g into h:

[tex](h\circ g)(d)=-4(2d - 5) +3[/tex]

Operating:

[tex](h\circ g)(d)=-8d +20 +3[/tex]

[tex]\boxed{(h\circ g)(d)=-8d +23}[/tex]

Courtni is multiplying 3.2 x 30. Explain how Courtni can use expanded form
and properties of multiplication to solve this problem mentally. What is the
product of 3.2 x 30?

Answers

If we multiply 3.2 x 30, the answer is 96.

A researcher needs 25 mL or 45%
base Solution for a certain
expiriment, but she has only 15%
Solution and 65% Solution. How
many mL of the 15% and the
65% Solutions should she mix to
get what She needs?

Answers

Answer:

10 mL of 15% solution

15 mL of 65% solution

Step-by-step explanation:

If x is the volume of 15% solution, and y is the volume of 65% solution, then:

x + y = 25

0.15 x + 0.65 y = 0.45 (25)

Solve with substitution:

0.15 x + 0.65 (25 − x) = 0.45 (25)

0.15 x + 16.25 − 0.65 x = 11.25

0.50 x = 5

x = 10

y = 15

solve this - 4x < 32

Answers

Answer:

[tex] - 4x < 32 \\ or \: - x < \frac{32}{4} \\ or \: - x < 8 \\ or \: x < - 8 \\ \\ therefore \: x \: < - 8.[/tex]

Thank you ☺️

Solve both sides of the inequality by -4 and flip the inequality sign
Any expression divided by itself equals 1
Dividing a positive and a negative equals a negative
Calculate the quotient
The answer is: X>-8

how do you work out 7.62 + 5.97 + 3.6 =?

Answers

Answer:

17.19

Step-by-step explanation:

First, you add 7.62 and 5.97. This leaves you with 13.59 + 3.6, and you add these together to get 17.19. That is your answer :)

Solve for the variable.
pls help me​

Answers

Answer:

b=17

Step-by-step explanation:

180-(68+19)=93

5b+2+93=180

5b+95=180

180-95=85

5b=85

85/5=17

b=17

SORRY I NEED HELP AGAIN! 5 cans of soda cost $3.75. At this rate, how much do 3 cans of soda cost?
Type your answer here..

Answers

Answer:

So if 5 soda cost $3.75 per can, multiply 3 times $3.75 and that would be your answer:  $11.25

Step-by-step explanation:

plssssss help
O 5 units
O 10 units
O 9 units
O 13 units​

Answers

I Belive it is B 10 units
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