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“ Explain the steps Sandi took to arrive at her answer. If she made any errors in her process clearly explain what she did wrong and how she could have made the error.
If there is an error, provide the correct steps In your explanation of Sandis work.
Use correct math terminology wherever appropriate. 3-5 Sentences”

Answers

Answer 1

Sandi did not follow PEMDAS. She added before multiplying and dividing. Her answer should be 18 because 6 • 4 = 24, 2 / 2 = 1, 24 + 1 = 25, 25 - 7 = 18

Related Questions

For which inequality would x= 2.7 not be a solution?
O X+ 14.9
O X-4<0
O 3x + 6 2 10
O 6- X21

Answers

Answer:

1st one

Step-by-step explanation:

The inequality that is not correct for x = 2.7 will be x + < 9. The correct option is A.

What is inequality?

When two expressions are connected by a sign like "not equal to," "greater than," or "less than," it is said to be inequitable. The inequality shows the greater than and less than relationship between variables and the numbers.

Given that the value of x is 2.7. Check all the options for x = 2.7.

Option A:-

x + 14 < 9

x < 9 - 14

x < -5 False

Option B:-

x - 4 < 0

x < 4 True

Option C:-

3x + 6 ≥ 10

3x ≥ 4

x ≥ 4/3 True

Option D:-

6 - x ≥ 1

x ≤ 5 True

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A cookie recipe called for 3 3.5 cups of sugar for every 246
cups
of
flour. If you made a batch of cookies using 4 cup of flour, how many
cups
of sugar would you need?
O 54/35 cups of sugar for 4 cups of flour
O 1 19/35 cups of sugar for 4 cups of flour
O 6 6/35 cups of sugar for 4 cups of flour
O 5 2/5 cups of sugar for 4 cups of flour

Answers

Answer:

D=5 2/5 cups of sugar for 4 cups of flour

Step-by-step explanation:

I cross multiplied and man was that a lot of fractions

The function f(t) = |98.6-x|, represents a persons's variance from normal body temperature, where x represents a person's current body temperature in degrees Fahrenheit. Medical professionals say healthy individuals should have a variance of no more than 0.5 degrees Fahrenheit.

Answers

Answer:

98.1°F ≤ x ≤ 99.1°F

Step-by-step explanation:

Given the function:

f(x) = |98.6 - x|

Variance = 0.5

98.6°F - x = ± 0.5

Lower bound :

98.6 - 0.5 ≤ x

98.1 ≤ x

Upper bound :

x ≤ 98.6 + 0.5

x ≤ 99.1

Hence,

98.1°F ≤ x ≤ 99.1°F

5/8 - 5/24

I am doing some homework my brain isnt working right now can someone help me out?

Answers

Answer:

5/12

Step-by-step explanation:

i just looked it up...

Answer: 5/12

====================================================

Explanation:

Multiply top and bottom of 5/8 by 3 to get 15/24

This means 5/8-5/24 is the same as 15/24-5/24

The denominators are the same, so we can subtract the numerators to have them placed over the common denominator

15/24 - 5/24 = (15-5)/24 = 10/24

Then we reduce by dividing each part of the fraction by the GCF 2

10/2 = 5

24/2 = 12

Meaning that 10/24 = 5/12

Note how multiplying top and bottom of 5/12 by 2 leads to 10/24 again.

So overall,

5/8 - 5/24 = 5/12

Anyone know how to do this???

Answers

Answer:

Step-by-step explanation:

Because 1 is either on top or on the bottom and 6 would be on the opposite side of 1 meanwhile the other numbers are on the sides

what is (-1/2) - (-2/5) ?

help please .

Answers

Answer:

-1/10

Step-by-step explanation:

Answer:

-1/10

Step-by-step explanation:

First you need a common demonator of 10

-1/2 --> -5/10

and -2/5 --> -4/10

using this the equation is:

-5/10 - (-4/10) which equals

-5/10 + 4/10= -1/10

The price of a sweater was reduced from $20-$12 by the percentage was the price of the sweater reduced ?

Answers

You would have to subtract 20-12=8

Anthony borrows $6.50 from a friend to pay for a sandwich and a drink at lunch. Then he borrows $3.75 from his sister to pay for a library fine. Choose an equation to express Anthony’s total debt that day.

Answers

6.50 + 3.75 Yep that’s the soulutiob

Each of the four shapes represents a positive whole number. The sum of the
shapes in each row and column is displayed at the end of each row and
column. Using this information, determine the numerical value of each shape.
{
23
16
24
15
19
20
23
16

Answers

Answer:

The pentagon shape = 8

The star shape = 6

The curl shape = 3

The wave pattern shape = 5

Step-by-step explanation:

Let the pentagon shape = w, the star shape = x, the curl shape = y, and the wave pattern shape = z

Horizontally, we have;

w + 2·x + y = 23.....(1)

2·y + 2·z = 16...........(2)

2·z + w + x = 24.. ..(3)

3·y + x = 15..............(4)

Vertically, we have;

2·x + z + y = 20.......(5)

2·y + w+ z = 19........(6)

From the above equations, we have;

From equation (4), we have x = 15 - 3·y

From equation (2), we have z = 8 - y

From equation (1), we have w = 23 - (2·(15 - 3·y) + y)

∴ w = 23 - 30 + 6·y - y = 5·y - 7

w = 5·y - 7

Substituting the above values for x, and z i equation (5) gives;

2·x + z + y = 2·(15 - 3·y) + 8 - y + y = 20

30 - 6·y + 8 - y + y = 20

6·y = 30 + 8 - 20 = 18

y = 18/6 = 3

y = 3

w = 5·y - 7 = 5×3 - 7 = 8

w = 8

z = 8 - y = 8 - 3 = 5

z = 5

x = 15 - 3·y = 15 - 3×3 = 15 - 9 = 6

x = 6

Therefore, we have;

w = The pentagon shape =8

x = The star shape =6

y = The curl shape = 3, and

z = The wave pattern shape =5

The number of each of the four given shapes filled in the rows and columns are;

8 inscribed pentagon shape

6 star shapes

3 spiral shapes

5 Waves inside rectangle shape

From the diagram, we see four shapes and so let us identify them with letters;

Inscribed pentagon shape = a

Star shape = b

Spiral shape = c

Waves inside rectangle shape = d

For the first row, we see 2 stars, one inscribed pentagon and one spiral shape. Thus;

a + 2b + c = 23 .....(eq 1)

For the second row, we see 2 spiral shapes and 2 Waves inside rectangle shape. Thus;

2c + 2d = 16 ......( eq 2)

For the third row, we see 1 star, one inscribed pentagon and 2 Waves inside rectangle shape. Thus;

a + b + 2d = 24 ....(eq 3)

For the fourth row, we see 3 spiral shapes and one star shape. Thus;

b + 3c = 15 ....(eq 4)

Looking at the columns, we see that;

First column;

2c + a + d = 19 ....(eq 5)

Second column, we have;

2b + c + d = 20 .....(eq 6)

From eq 4; b = 15 - 3c

From eq 2, we have; d = 8 - c

Putting them in eq 1 gives;

a + 2(15 - 3c) + c = 23

a + 30 - 6c + c = 23

a = 5c - 7

Putting d = 8 - c and a = 5c - 7 into eq 5 gives;

2c + 5c - 7 + 8 - c = 19

6c + 1 = 19

6c = 18

c = 3

Put 3 for c in a = 5c - 7

a = 5(3) - 7

a = 8

Put 3 for c in b = 15 - 3c

b = 15 - 3(3)

b = 6

Put 3 for c in d = 8 - c

d = 8 - 3

d = 5

Thus, we have;

8 inscribed pentagon shape

6 star shapes

3 spiral shapes

Answer:

Its true

It's a greater than sign.

Step-by-step explanation:

-15
-5=
help with this one?

Answers

Answer:

The answer is 3.

Step-by-step explanation:

If you divide a negative by a negative, then it equals a positive, because the two negatives cancel out.

So, -15/-5 = 3.

But, if it were -15/5 = ?

Then it would be -3, because there is only one negative, therefore it cannot cancel out.

Hope this helps! :)

what is an expression equivalent to m^238/m^-79 in the form m^v, where v is an integer?

Answers

Answer:

[tex]m^{317}[/tex]

Step-by-step explanation:

In indices, the division postulate is true:

[tex]\frac{a^m}{a^n} = a^{m-n}[/tex]

Apply this to the question:

[tex]\frac{m^{238}}{m^{-79}} \\= m^{238-(-79)}\\= m ^{238+79}\\= m^{317}[/tex]

Hence the expression expressed in the form [tex]m^v \ is \ m^{317}[/tex]

Compare the ratios 4:5 and 16:20.
I need this quick

Answers

They are both 4/5 therefore they are the same ratio.

4:5 is just the simplified version of 16:20! Hope I helped!! :)

Please answer!!!

What is the instantaneous slope of y = eight over x at x = -3?
A. -8/3
B. 8/3
C. -8/9
D. 8/9

Answers

Answer:

Step-by-step explanation:

[tex]\frac{d}{dx} (8x^-1)\\-8x^{-2}\\[/tex]

using x = -3

[tex]-8(-3)^{-2}\\\frac{-8}{9}[/tex]

The instantaneous slope of the function y = 8/x at x = -3 is -8/9.

Option C is the correct answer.

We have,

To find the instantaneous slope of the function y = 8/x at x = -3, we can differentiate the function with respect to x.

Differentiating y = 8/x using the power rule, we get:

dy/dx = -8/x²

Now, we can evaluate the instantaneous slope at x = -3 by substituting the value into the derivative:

dy/dx = -8/(-3)²

= -8/9

Therefore,

The instantaneous slope of the function y = 8/x at x = -3 is -8/9.

Learn more about derivatives here:

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Which is greater 60% or ⅝

Answers

60% is greater than 5/8

9m-4/=6+3m find the value of m

if anybody answer i will give 20 points and brainlist

Answers

Answer:

The value of m is 5/3 .

Step-by-step explanation:

=> 9m -4 = 6 + 3m.

=> 9m - 3m = 6 + 4.

=> 6m = 10.

=> m = 10/6.

=> m = 5/3 .

The average price of gas cost $3.27 per gallon in the year 2008. In 2020 the average price of gas is $2.15. What is the percent decrease?

Answers

Answer:

34.2508% decrease

Step-by-step explanation:

Percent decrease = 100 x (starting value-new value/starting value)

100 x ((3.27 - 2.15)/3.27)

Answer:

$1.12

Step-by-step explanation:

$3.27-$2.15=$1.12

$1.12 + $2.15= $3.27

Write an equation in slope-intercept form of the line with slope −1 that contains the point (5,−2).

Answers

Answer:

y=-x+3

Step-by-step explanation:

[tex]y-y_{1}=m(x-x_{1})\\ y-(-2)=-(x-5)\\y+2=-(x-5)\\y+2=-x+5\\y+2-2=-x+5-2\\y=-x+3[/tex]

Which graph represents the solution set of the system of inequalities?

−3x+y>1
{
y≥x−1

Answers

Answer:
I think is A

Write the number in standard form: 9.82 × 10 ³

Answers

Answer:

that would be 9820

Answer:

The average cost of a movie ticket in Japan is $17.86 and the average cost of a movie ticket in Switzerland is $13.75

Step-by-step explanation:

The question seems to be incomplete. Here is a similar question and the solution:

Average movie prices in the United States are, in general, lower than in other countries. It would cost $81.08 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two tickets in Japan would cost $76.97. How much does an average movie ticket cost in each of these countries?

Step-by-step explanation:

Let the cost of tickets in Japan be $x and the cost of tickets in Switzerland be $y.

From the question,

It would cost $81.08 to buy three tickets in Japan plus two tickets in Switzerland. That is

3x + 2y = 81.08 ...... (1)

Also from the question,

Three tickets in Switzerland plus two tickets in Japan would cost $76.97. That is

2x + 3y = 76.97 ...... (2)

Multiply equation (1) by 2, so that we get

6x + 4y = 162.16 ...... (3)

and multiply equation (2) by 3, so that we get

6x + 9y = 230.91 ...... (4)

Now, Subtract equation (3) from equation (4), we get

5y = 68.75

y = 68.75/5

y = 13.75

Put the value of y into equation (1) to determine x

3x + 2y = 81.08

3x + 2(13.75) = 81.08

3x + 27.5 = 81.08

3x = 81.08 - 27.5

3x = 53.58

x = 53.58/3

x = 17.86

∴ x = 17.86 and y =13.75

Hence, the average cost of a movie ticket in Japan is $17.86 and the average cost of a movie ticket in Switzerland is $13.75.

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