erica solved the equation -5x - 25 = 78; her work is shown below. Identify the error and were it was made
-5x - 25 = 78
Step 1:-5x - 25 -25 = 78 - 25
Step 2: -5x = 53
Step 3:-5x/-5 = 53/-5
step 4: x = -53/-5

a step 1: She should have added 25 to each side
b step 1: She should have divided both sides by -5.
c step 3: She should have divided both sides by -5.
d step 3: She should have multiplied both sides by -5.

Answers

Answer 1

Answer:

A

Step-by-step explanation:

It's A because she subtracted a negative and that only make a bigger negative where she should have added


Related Questions

Could anyone help please?

Answers

Answer:

9.6 or round it to 10

Step-by-step explanation:

brainliest pls

Which statement is true about 1?
A. It is a prime number.
B. It is a composite number.
C. It is a whole number that is neither prime nor composite.
D. It is not a whole number.
Please dont be greedy and answer the question saying something like "i have no idea" Thanks

Answers

Answer:

C. It is a whole number that is neither prime nor composite.

Step-by-step explanation:

A prime number is a number that has two factors: one and another number. Thus, since 1 only has one factor (itself), it cannot be a prime number.

However, a composite number must have more than two factors, which 1 doesn't have either.

Since 1 is a whole number (not a decimal or fraction), and it is neither prime nor composite, the answer would be C.

Have a nice day!

Answer:

C!

Step-by-step explanation:

hope it helped

HELP DUE IN 10 MINUTES ​

Answers

Answer:

x=-6

y=1

Step-by-step explanation:

do you need the rest of the page done as well?

x=-6

y=1

Answer:

Step-by-step explanation:

IM BAD AT MATH HELP ME

Answers

Answer:

bro i cant see the question clearly please say in comments or say again

I WILL GIVE BRAINLIEST

Answers

Answer:

it should be b but if i'm wrong im really sorry :(

Step-by-step explanation:

C is the correct answer

sina=3/5 find cos2a​

Answers

Answer:

[tex] \huge \purple{\therefore \cos2a} \orange{= }\red{\frac{7}{25} } [/tex]

Step-by-step explanation:

[tex] \because \cos2a =1 - 2 { \sin}^{2} a \\ \\ \therefore \cos2a =1 - 2 \bigg( { \frac{3}{5} }\bigg) ^{2} \\ \\\therefore \cos2a =1 - 2 \times \frac{9}{25} \\ \\\therefore \cos2a =1 - \frac{18}{25} \\ \\\therefore \cos2a = \frac{25 - 18}{25} \\ \\ \huge \purple{\therefore \cos2a} \orange{= }\red{\frac{7}{25} } \\ \\[/tex]

The order pairs (1, 2), (2, 5), (3, 10), (4, 17), and (5, 26) represent a function. What is a rule that could represent this function?

A. y = x2 + 1
B. y = x2 − 1
C. y = x2
D. y = x + 1

Answers

Answer:

The answer is A

Step-by-step explanation:

1 to the second power is 1 + 1 = 2

2 to the second power is 4 + 1 = 5

3 to the second power is 9 + 1 = 10

4 to the second power is 16 + 1 = 17

5 to the second power is 25 + 1 = 26

y = x² + 1 is a rule that could represent the given function.

Given that,
The order pairs (1, 2), (2, 5), (3, 10), (4, 17), and (5, 26) represent a function, what is a rule that could represent this function is to be determined.

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
While observing the pattern of pair it is found that every ordinate is 1 more the square of its abscissa, so the general equation for the function is given as,
y = x² + 1

Thus,  y = x² + 1 is a rule that could represent the given function.

Learn more about function here:

brainly.com/question/21145944

#SPJ2

Which line fits the scatter plot better?

Answers

A fits it better because the dots are closer and that line is more accurate, the other line’s dots are more spread out
A would be the best. The line is going up at a rate of 2/1 and all of the dots are very close to the line other than B.

Which shape has six square, flat sides that are equal in size?

Answers

Answer: cube

Step-by-step explanation:

Think of a box .... it has 4 sides, a top, and a bottom = 6 total sides

Which of the following statements are true for a rhombus? It has two pairs of parallel sides. It has two pairs of equal sides. It has only two pairs of equal sides. Two of its angles are at right angles. Its diagonals bisect each other at right angles. Its diagonals are equal and perpendicular. It has all its sides of equal lengths. It is a parallelogram. It is a quadrilateral. It can be a square. It is a square.

I’ll give brainliest

Answers

Answer:

6x+12

Step-by-step explanation:

2(5x+3)-2(2x-3)Expand, 10x+6-4x+6Combine like terms, 6x+12

In a survey of 2,200 people who owned a certain type of​ car, 880 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car?
*blank*% of the people surveyed were satisfied with the car.

Answers

Answer:

40%

Step-by-step explanation:

Given parameters:

Number of people surveyed  = 2200

Number of people who said they would buy the car again  = 880

Unknown:

The percentage of people satisfied with the car  = ?

Solution:

The percentage of people satisfied with the car purchase can be determined using the expression below:

Percentage of people satisfied  = [tex]\frac{Number of people who said they would buy the car again}{Number of people surveyed} x 100[/tex]

Percentage of people satisfied  = [tex]\frac{880}{2200}[/tex]  x 100  = 40%

When solving an equation, Henry gets to the last line of hi work and is left with “3=3”. What does this mean?

Answers

D


There are infinite amounts of solution

I learned this way back in 8th grade

Write a recursive rule for the sequence 10, 18, 26, 34….

Answers

Answer:

42

Step-by-step explanation: It keeps going up by 8

angle of elevation and depression​

Answers

Answer:

Solved Examples on Angle of Depression: 1. From the top of a tower, a man finds that the angle of depression of a car on the ground is 30°. If the car is at a distance 40 metres from the tower, find the height of the tower.

Step-by-step explanation:

Please help and hurry!! Worth 15 points.

Solve
10p + 2 + 3p = 36

A. 2 12/13
B. 2 8/13
C. 2 10/13
D. 4 6/7

Answers

Answer:

b

Step-by-step explanation:

Problem D: PRABG4G2
Which one doesn't belong? Explain your reasoning.
A. 5 miles in 15 minutes
B. 3 minutes per mile
C. 20 miles per hour
D. 32 kilometers per hour

Answers

Answer:

D.

Step-by-step explanation:

How many pounds of turkey?

Answers

Answer:

11.25pounds

Step-by-step explanation:

Each person is eating two, 3/8

so 2x3/8=0.75 or 3/4

then do 3/4 x 15 = 11.25 pounds and for the price you do 11.25 x 1.05$ which is 11.81$ worth of turkey

a) 3√ -1 =

b) 3√ 216 =

c) 3√ -0,008 =

d) 3√127=

e) 3√ -0,064 =

f) 3√ 338=

Answers

Answer:

you can download photo math to help you to solve this questions

Determine the mass of an object, if it requires a force of 6,000 kg: m/s2 to accelerate at the rate of 2 m/s^2

Answers

Answer:

The answer is 3000 kg

Step-by-step explanation:

The mass of an object can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{6000}{2} \\ [/tex]

We have the final answer as

3000 kg

Hope this helps you

[tex] \boxed{ \red{AnswEr:-}}[/tex]

Mass = 3000 kg

GivEn :-

Force = 6000 kg • m/s^2Acceleration = 2 m/s^2

To Find :-

The value of mass

Solution :-

From Newton's 2nd law of motion we get the equation,

[tex]{ \boxed{ \red{ \sf{F =

m \times a}}}}[/tex]

where,

F = Force m = mass of the objecta = acceleration

[tex] \implies \sf \: m = \dfrac{F}{a} [/tex]

Putting the values,

[tex] \implies \sf \: m = \dfrac{6000}{2} [/tex]

[tex] \implies \red{\sf \: m = 3000}[/tex]

Therefore, mass of the object = 3000 kg

help please!!!!!!!!!!!!!!!!!

Answers

Answer:

the answer is 9.5

Step-by-step explanation:

Answer:

I think it's C. 9.5

Hope this Helps!

The vertices of a triangle are P(–2, –3), Q(–4, –2), and R(4, 8). What are the vertices of the image reflected across the y-axis?
P(–2, 3), Q(–4, 2), and R(4, -8)
P(2, –3), Q(4, –2), and R(-4, 8)
P(–2, –3), Q(–4, –2), and R(4, 8)
P(-3, -2), Q(-2, -4), and R(8, 4)

Answers

Answer:

[tex]\huge\boxed{P(2;\ -3);\ Q(4;\ -2)\ \text{and}\ R(-4;\ 8)}[/tex]

Step-by-step explanation:

[tex]A(x;\ y)\xrightarrow{S_{OY}}A'(-x;\ y)\\\\\text{The abscissa changes to the opposite:}\ x\to -x\\\\\text{Therefore}\\\\P(-2;\ -3)\xrightarrow{S_{OY}}P'(2;\ -3)\\\\Q(-4;\ -2)\xrightarrow{S_{OY}}Q'(4;\ -2)\\\\R(4;\ 8)\xrightarrow{S_{OY}}R'(-4;\ 8)[/tex]

Use the equation p= 8.31/v where p = pressure and V = volume.

What happens to the pressure as the volume approaches 0? Explain your reasoning.

Answers

Answer: pressure increases

Step-by-step explanation:

because Boyle's law states that pressure and volume have an inverse relationship, if we decrease volume the pressure will increase.

Another explanation: since volume approaches 0, we're dividing by a smaller number, and doing this gives us a larger value for pressure

Answer:

The pressure approaches infinity.

The function is undefined for V = 0.

There is an asymptote at V = 0.

Step-by-step explanation:

Exact answers for edge

you want to buy a new coat
that is on sale for 15% off. The sale price of the coat is $60.
What was
the original price of
the coat ?

Answers

Answer:

70.59

Step-by-step explanation:

The table shows the results of a survey of 200 randomly selected people on whether they like watermelon,
cantaloupe, or both.
Which is the marginal relative frequency for the people who do not like cantaloupe?

A. 25/91
B. 66/200
C. 91/200
D. 66/91

Answers

Answer:

C

Step-by-step explanation:

Marginal relative frequency for the people who do not like cantaloupe is 0.455

or

91/100

Answer:

C is correct

Step-by-step explanation:

Christo graphs AB with endpoints A( -3, -2 ) and B ( -1, -2 ) what are the endpoints of the image after a reflection of AB across the x axis?

1. (-3,2) and (-1,2)

2.(-3.-2) and (-1,-2)

3. (1,-2) and (3,-2)

4. (2,3) and (2,1)

5. none of the above

Answers

Answer:

1. (-3,2) and (-1,2)

Step-by-step explanation:

Reflection over x-axis results in coordinate change as follows:

(x, y) → (x, -y), x-coordinate stays as is and y-coordinate changes its sign to opposite

Given points:

A(-3, -2) and B(-1, -2)

The image of AB will have coordinates:

A'(-3, 2) and B'(-1, 2)

Correct choice is 1.

Answer:

(-3,2) and (-1,2)

Step-by-step explanation: I took the test already and got this correct crazy to find  this question 2 days later.

Write the number 68,127,000,000,000,000 in scientific notation.

Answers

The answer to this question is 6.8 x 10^16.

Answer:

[tex]6.8127[/tex] × [tex]10^{16}[/tex]  

I hope this helps!

Kevin ate 2/3 of a pizza and Louisa ate 1/12 of the same pizza. How
much pizza is left? *

Answers

Answer:

7/12

Step-by-step explanation:

multiply 2/3 by 4 on both the numerator and denominator which is 8/12

8/12-1/12=7/12 (final answer because it cannot be simplified)

Please help will give brainliest if its correct

Answers

Answer:

radius squared

Step-by-step explanation:

Use substitution to show that 9+6(10-7x) is equivalent to 69-42x.

.

Answers

Answer:

hope this helps

Step-by-step explanation:

9+6(10-7x)

9+60-42x

69-42x

At a dairy farm the ratio of adult milking cows to young calves was 9:2. If there were 234 adult milking cows at the farm, how many young calves were there?

Answers

Answer:

52 young calves

Step-by-step explanation:

At a dairy farm the ratio of adult milking cows to young calves was 9:2. If there were 234 adult milking cows at the farm, how many young calves were there?

The ration is given as:

adult milking cows to young calves

= 9 : 2

= 234 : x

= 9/2 = 234/x

x = Number of young calves

Cross Multiply

9 × x = 2 × 234

= x = 2 × 234/9

x = 468/9

x = 52

Hence, the number of young calves on the farm is 52.

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