Mathematics High School

When solving an equation, Anne's first step is shown below. Which property justifies Anne's first step?

Original Equation
3x - 1 = 3

First Step 3x = 4​

Answers

Answer 1

Answer:

no property

Step-by-step explanation:

Name the property used: no property

Related Questions

Solve the system of equations.
2x-y =7
1x-y = 10

Answers

Answer:

(-3, -7)

Step-by-step explanation:

2x - y =  7                 multiply by -1  ⇔     -2x + y = -7

1x - y = 10                Do not change ⇔     1x -  y =  10  

                                                                     -x   = 3

                                                                      x = -3

Use the second equation to solve on y when x = -3

-1x - y = 10

-1(-3) - y = 10

 3 - y = 10

    -y = 10 - 3

    -y  = 7

     y = -7                         Solution:  (-3, -7)

Find the inverse function.

f(x) = -3x +1/2

f-1(x) =


Answers

Answer:

f^-1(x)= -x/3 +1/6

Step-by-step explanation:

So its negative x over 3, plus, 1 over 6

Solve.

|x|−5=−20

–4 or 4


no solution


–100 or 100


100

Answers

Answer:

No Solution

Step-by-step explanation:

We are given the equation:

[tex]\displaystyle \large{|x|-5=-20}[/tex]

First, Add both sides by 5 which leaves us [tex]\displaystyle \large{|x|=-15}[/tex]

By definition, an absolute value cannot be negative. There are no x-values that can equal to -15 because no matter what real numbers you put in or substitute, it will never become negative.

Hence, no solution.

the function f(x) = log 0.5 is decreasing.

true or false?

Answers

i think it's false,

HELPPP MEE PLEASEE I NEED HELP RIGHT NOWW !

Answers

Hi there!

Recall the formula for the area of a parallelogram:

A = b × h

b = base (mm)

h = height (mm)

Rearrange the equation to solve for the height:

A = bh

A/b = h

Plug in given values:

26.4/6 = 4.4 mm

Which number line shows the solution to the inequality 4x+5>9

Answers

The answer to your question is option 1

What is 3/7 + 4/18 estimated

Answers

Answer:

41/63

Step-by-step explanation:

41/63 can't be simplified

Answer:

3/7+4/18=41/63

Step-by-step explanation:

3/7=3x18/7x18=53/126

4/18=4x7/18x7=28/126

54/126+28)126=54+28/126=82/126

82/126

simplify

41/63

Alex feeds his cat ⅗ of a can of cat food a day how many cans of cat food should Alex buy each week

Answers

Answer:

5

Step-by-step explanation:

3/5 times 7 is 4 1/5 and you cant buy 1/5 of a can so you have to round up to 5

elise gets a free tax allowance of $6000 and pays tax at 25% on the next $20 000. she pays tax at a raye of 30% on the rest. if she earns $72 000per year, how much must she pay?​

Answers

Answer:

c

Step-by-step explanation:

i know because im not g.a.y like u guys

509^6*78^8

HOW R YA'LL DOIN

Answers

Answer: Great U?

Have a great Day/Night

PLZ HELP 100 POINTS AND BRAINLIEST PLZ HELP

Answers

Answer:

Step-by-step explanation:

number 6. (1-2+3)  - 4 + 5 = 3

Number 7. (1+2) +( 3+4 ) - 5 = 5

number 8. (1+2+3) - 4(5) = 10

5: (1+2)3 - 4 / 5 = 1

Answer:

5 --- 1 + 2 - 3 - 4 + 5 = 1

6 --- 1 - 2 + 3 - 4 + 5 = 3

7 --- [1 + (2 x 3 x 4)] / 5 = 5

8 --- [1 + 2 + (3 x 4)] - 5 = 10

Step-by-step explanation:

I didn't know if you needed brackets/parenthesis for the first two, that's just what I came up with

Solve the system of equations -6x+5y=0 and −5x+5y=−5 by combining the equations.

Answers

Answer:

Step-by-step explanation:

-6x+5y=0 and −5x+5y=−5

Subtract the second from the first:

-6x+5y=0

5x-5y= 5

-x = 5

x = -5

I bad at math :/ plz help​

Answers

Answer:

i think its b

Answer:

B. (x³-10)(x⁶+10x³+100)

Step-by-step explanation:

x⁹-1000

(x³)³-10³

so now always remember

x³-y³=(x-y)(x²+xy+y²)

so for this question x= x³ and y=10

we now have

(x³-10)((x³)²+10x³+10²)

(x³-10)(x⁶+10x³+100)

your friend has owned a dog for 9 year this is one year less than as

Answers

you just answered your own question

Asha bought 60 fruit baskets. 25% of the fruit baskets have 12 pieces of fruit in each basket. The remaining 75% of the baskets have 15 pieces of fruits in each basket. Complete the model. ​

Answers

Answer:

Number of baskets with 12 pieces of fruit: 15

Number of baskets with 15 pieces of fruit: 45

Step-by-step explanation:

25% x 60 = 0.25 x 60 = 15

75% x 60 = 0.75 x 60 = 45

The complete model for the given question is;

Number of fruit baskets that contain 12 fruits = 15 baskets

Number of fruit baskets that contain 15 fruits = 45 baskets

We are told that he bought 60 fruit baskets.

Percentage of the fruit baskets that have 12 pieces of fruit = 25%

Percentage of the fruit baskets that have 15 pieces of fruit = 75%

Thus;

Number of fruit baskets that contain 12 pieces of fruit = 25% × 60 = 15 baskets

Number of fruit baskets that contain 15 pieces of fruit = 75% × 60 = 45 baskets

Read more about percentages at; https://brainly.com/question/11865045

The graph of the function has slope of 1 and y-intercept of -6.​

Answers

Answer:

= -5

Step-by-step explanation:

1-6=5

1-6

{Subtract the numbers:} 1-6=-5

= -5

Which graph represents the function f (x) = 8 Superscript one-third x?

Answers

Answer:

2nd graph

Step-by-step explanation:

Plz mark brainliest

Answer:

Its the second option

Step-by-step explanation:

i just did it

One student claims that 25% is equivalent to 1/4%. Is that correct? Why or why not?

Answers

Answer:

ya

Step-by-step explanation:

25 percent is equally to 25 over 100 which is 1over4

15 points in 4 quarters

Answers

Is this u asking a question or just saying 15 points in 4 quarters?

Isn’t is 8 pints in 4 quarters because there’s 2 pints in each quarter.

Please help me on question two

Answers

Answer:

The following are the answers of questions asked above :-

a) 40

b) 4

c) 4000

. If there are 20 girls in a class of 30 students, find out the percentage of boys in the class?​

Answers

✍ Question:

If there are 20 girls in a class of 30 students, find out the percentage of boys in the class?​

✍ Answer:

>> If the class has 30 students and 20 girls then;

Boys = (30 - 20 = 10)

>> Therefore;

Percentage that are boys = (no.of boys/total students) x 10010/30 * 100 = 33.3%

#CarryOnLearning

- Happy Holidays -

The percentage of boys in the class is 33.3%

If the class has 30 students and 20 girls then;

Boys = (30 - 20 = 10)

Percentage that are boys = (no.of boys/total students) x 100

10/30 * 100 = 33.3%

What's percent in math?

The percentage is a relative fee indicating the hundredth component of any amount. One percentage (symbolized 1%) is one centesimal part; as a result, 100 percent represents everything and 2 hundred percent specifies twice the given amount. percentage. associated subjects: mathematics percentile.

Multiply the number by means of 100. If you are required to convert a decimal number like 0.57 to a %, you simply multiply it through one hundred. that is 0.57 x 100 = 57. therefore, 0.57 as a percent equals 57%.

Learn more about percentages here: https://brainly.com/question/843074

#SPJ2

(-3, 5), (-4, 5) what is the slope

Answers

Answer:

0

Step-by-step explanation:

(5-5)/(-4+3) = 0/-1 = 0

I used a calculator

Tell whether the ordered pair is a solution to the equation.
x=9;(9,6)

Answers

Answer:

  yes, it is

Step-by-step explanation:

The value of x in the ordered pair (x, y) = (9, 6) is 9. That satisfies the equation ...

  x = 9

Substituting 9 for x, we get a true statement:

  9 = 9

Answer:

Step-by-step explanation:

Help help help help help math

Answers

Answer:

75

Step-by-step explanation:

A = π r^2

A = Area of the circle which is in this question unknown

r = radius of the circle (which is the length of straight line from the center of the circle to any point on the circumference of the circle) and in this question is equal to 5 in

π = irrational number equal to 3.14159... but here you have told to use it as 3

A = π r^2

*plot the information we have get( r = 5 in and π = 3 ) in the equation above

A = (3)(5)^2

A = (3) (25)

A = 75 in^2

Use the parabola tool to graph the quadratic function f(x) = x2 – 12x + 27.
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
+ Move
Parabola
Undo
Redo
Rese
10
9
8
7
6
5
D
2
3
2
1

Answers

Answer:

7

Step-by-step explanation:

you would chose 7 because it has more and less value

Suppose you have a box with 3 blue marbles, 2 red marbles, and 4 yellow marbles. You are going to pull out one marble, record its color, remove it from the box and draw another marble. What is the probability of pulling out a red marble followed by a blue marble? The multiplication rule says to use P(red) P(blue).

Question: Describe the process of finding the probability of finding a red marble followed by a blue marble if the first marble was permanently removed?

Answers

Answer:

that is dependent event when you are taking out first marble permanently

what is 1 over 5 divided by 6?

Answers

Answer:

[tex] \frac{1}{5} \div 6 = \frac{1}{5} \times \frac{1}{6} = \frac{1}{30} [/tex]

will give brainliest Select the correct locations on the graph.
Select the lines that represent functions.

Answers

The line on -4 to -1 and both the lines on the right side

IF 15 CHOCOLATE COST 10 RUPEES THEN HOW MUCH DOES 1 CHOCOLATE COSTS.

Answers

Answer:

2/3 Rupees

Step-by-step explanation:

Lets say Chocolate is C and a rupee is R.

Then, 15C = 10R. We can simplify to 3C = 2R. Now we divide both sides by Three to get C = 2/3R, which means a chocolate is 2/3 of a rupee!

Find the area of a trapezoid h= 4 b1= 1 1/2 b2 = 3 1/2

Answers

Answer:

10

Step-by-step explanation:

if

  a= base 1 (1.5)

  b= base 2 (3.5)

  h= height (4)

[tex]A=\frac{a+b}{2}h=\frac{1.5+3.5}{2} 4[/tex]

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