Which equations would you use the subtraction property of equality to solve?
Check all that apply.
O 5y=20
O76=d+4
Ox-3=17
Ob-13=26
Oh+2=54
Dz+9=2

Answer:

it is true

Step-by-step explanation:

A test statistic compares our observed outcome to the alternative hypothesis. If the null hypothesis is true, then the teststatistic will be close to 0. Therefore, the farther the test statistic is from 0, the more the null hypothesis is discredited.

Answer:

Step-by-step explanation:

1 and  -1 I think sorry if it’s wrong can I get brainiest

Answer:

it is the infinitely many solutions

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Step-by-step explanation:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Answer:

28098576000

Step-by-step explanation:

♡ Answer ♡

12°

♡ Step-by-step explanation ♡

  For this problem, we must find the value of x. In order to do this, there are a few simple steps we must follow.

However, before we begin, there is one important fact we should remember. As we know, there are 180 degrees in a triangle. This means that our total is 180°.

  Our first step towards completing this problem is to subtract the amount of degrees we know from the total. In the picture, we can clearly tell that the degrees that are not attached to a variable are 27° and 9°. So, we can easily subtract those from 180°. 27° + 9° = 36°. 180°- 36° = 144°. This means that the remaining value we have left to work with, when incorporating that attached to x, is 144°.

  The next step towards completing this question is to add the values of the numbers attached to x. In this case, the remaining values are 5x° and 7x°. The numbers attached to the variable x are 5 and 7. These are the two numbers we must combine to find the answer. 5 + 7 = 12. So, the total value of the numbers attached to x is 12.

  This final step is directly connected to the last one. To find the value of x, we must divide 144° by 12. This is because the total degrees of the triangle that are directly connected to x are 144°, and the total values of the numbers directly attached to x are 12. Therefore, by dividing 144° by 12, the answer will be the value of x. 144° ÷ 12 = 12°. So, x is 12°.

  Furthermore, there is actually a way to check to see that x is actually 12°. This strategy is by substituting x for 12°. To do this, I must multiply 5° by 12° (for 5x°) and 7° by 12° (for 7x). 5° * 12° equals 60°. 7° * 12° is 84°. 60° + 84° = 144°. Now, we must add the remaining values: 9° and 27°. 9° + 27° = 36°. 36° + 144° = 180°. If you remember, there are 180° in a triangle. 180° = 180°. This proves that the answer is indeed 12°

  A/N (Author's Note): I hope this helps those that have found their way to this page! I tried to explain the process in sequential order so that it is easier to comprehend. Thanks for taking time out of your day to read my answer. Have a marvelous week! <3

Answer:

9/28

Step-by-step explanation:

3*3 = 9

7*3 = 21 not 28

hence, this fraction isn't proportional

Answer:

45mins

Step-by-step explanation:

The time required to produce 100 parts will be 10 minutes.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that a machine produces 4500 parts in an 8-hour day. The time will be calculated as below:-

4500 parts = 8 hours

100 parts = 8 / 45 hours

100 parts = ( 8 x 60 ) 45 minutes

100 parts = 10 minutes

Therefore, the time required to produce 100 parts will be 10 minutes.

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Answer:

Best to worst: 30% off, $5 off, 1/5 off. Need an explanation? See below for fully worked out answer!

Step-by-step explanation:

1/5 off of the hat:

1/5 of 20

20 divided by 5 equals 4

$4 would be taken off with this discount. 20-4=16. Therefore the hat would cost $16 at this store.

30% off of the hat:

20 times 30% = 20 times 0.30

20 times 0.30=6.

$6 dollars would be taken off of the hat. 20-6=14. Therefore, the hat at this store would cost $14.

$5 off of the hat.

20-5=15

The hat would cost $15 at this store.

Best to worst: 30% off, $5 off, 1/5 off.

I sincerely hope this helps you! Good luck on your test/homework you are completing!

The perimeter of a rhombus with vertices p(-2, -3) ,Q(1,1) ,R(4,-3),S(1,-7). is 20 units

A rhombus is a quadrilateral that has all its sides equal to each other.

The rhombus has 4 sides and all it sides are equal.

Therefore,

perimeter of a rhombus = 4l

where

Therefore,

using p(-2, -3) ,Q(1,1)

l = √(1 + 3)² + (1 + 2)²

l = √4² + 3²

l = √16 + 9

l = √25

l = 5 units

Therefore,

perimeter of the rhombus = 4(5) = 20 units

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Answer:

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

Step-by-step explanation:

perimeter is 2×length plus 2×width. f(x) means function of x

Answer:

225

Step-by-step explanation:

Easy, just divide! 1350 ÷ 6 = 225

sorry if this is wrong in my first year of middle

Answer:

Helping other people they delete all your points and answers if u "cheat" :/

Answer:

Correct answer is C because 1 input has only 1 output.

Answer:

So, the triangles cannot be proven congruent

Step-by-step explanation:

Congruence Theorems

Two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

The triangles shown in the figure have two clear congruent angles as marked in red color. The third angles located at point P is also congruent because they are vertical angles or opposite angles.

Being all three angles of the same measure, it proves both triangles are similar, but not necessarily congruent. The side lengths may be of the same measure, but they could also be proportional.

So, the triangles cannot be proven congruent

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. In our tomato example, that ratio is $3.00/2, which equals $1.50. Two quantities are directly proportional when they increase and decrease at the same rate.

Step-by-step explanation:

:)

Answer:

function i dont know im looking for the same answer but im pretty sure his salary is going to be 41,960 if you multiply the raise by 6 and 43,520 if you multiply the salary by 7

Step-by-step explanation:

The required Joe's salary will be represented by y = 32600 + 1560(x - 2001) and his salary in the year will be $41,960.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
Let Joe's salary after x years be y,
According to the question,
y = 32600 + 1560(x - 2001)

Now,
For year x = 2007
Joes income,
y = 32600 + 1560(2007 - 2001)
y = 32600 + 1560(6)
y = $41,960

Thus, the required Joe's salary will be represented by y = 32600 + 1560(x - 2001) and his salary in the year will be $41,960.

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The statements that must be true based on the diagram below are:

From the diagram, segments that have the same mark are congruent segments

This means that:

Segments KL and HL are congruent segments

So, we have:

LM is a segment bisector

Also, because the angle at point L is a right-angle

LM is a perpendicular bisector and L is a midpoint in the diagram

Lastly, point M is a midpoint in the diagram

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Answer:

9x-9

Step-by-step explanation:

the expression on the left simplifes to be 9x-8 so anything other than that will not produce a solution

examples:  9x+1, -9x-8, 10x+3, 12x . . .

Answer:d

Step-by-step explanation:

Answer:

Step-by-step explanation:

TRUE

All isosceles triangles have at least 2 acute angles due to 2 sides are equal.

The exterior angle of an equilateral triangle is obtuse.

If the perimeter of an equilateral triangle is P, then the length of each of the sides is P/3.

FALSE

All isosceles triangles are equilateral triangles.

If you know the length of one of the legs of an isosceles triangle, you can determine it’s the perimeter

The true and false statements need to be identified.

1. true

2. true

3. false

4. false

5. true

In an isosceles triangle two angles are equal.

Let the equal angle be [tex]x[/tex] and the other angle be [tex]y[/tex]

The sum of angles is [tex]180^{\circ}[/tex]

[tex]x+x+y=180\\\Rightarrow y=180-2x[/tex]

Now the value of [tex]x[/tex] cannot be [tex]90^{\circ}[/tex] or greater because

[tex]y=180-2\times 90=0[/tex]

[tex]x[/tex] has to be less than [tex]90^{\circ}[/tex].

The two equal angles must always be acute.

So, the statement is true.

If the side of an equilateral triangle is [tex]\dfrac{P}{3}[/tex]

Perimeter will be

[tex]\dfrac{P}{3}+\dfrac{P}{3}+\dfrac{P}{3}=P[/tex]

The statement is true.

An isosceles triangle that has the legs equal and also the base equal is called an equilateral triangle.

In an isosceles triangle the base may not be equal to the other two sides.

The statement is false.

Let [tex]x=1\ \text{unit}[/tex] be the length of the equal sides and [tex]y[/tex] the length of the other side

Permiter is

[tex]P=x+x+y\\\Rightarrow P=2x+y\\\Rightarrow P=2\times 1+y=2+y[/tex]

Since, the other side is not know the perimeter cannot be found.

The statement is false.

In an equilateral triangle all angles are [tex]60^{\circ}[/tex]

Exterior angle is found by subtracting the interior angle from [tex]180^{\circ}[/tex]

So, for an equilateral triangle the exterior angles will always be [tex]180-60=120^{\circ}[/tex]

The angles is greater than [tex]90^{\circ}[/tex] always.

The statement is true.

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0.8/100 * 1046

=8.368

Answer:

8.368

Step-by-step explanation:

Answer:

3x + 2y =18


Y= -2/3x + 12

3x + 2(-2/3x+12) = 18

3x + (-4/3x+24) = 18

3x + -1 1/3x +24 =18

1 2/3x +24 = 18

1 2/3x = -6

5/3x = -6

x = -3.75

Step-by-step explanation:

3x = 18-2y

x= 6 - 2/3y

then substitute in the second equation

Y= -2/3x + 12

y=-2/3(6-2/3y)+12

y= 72/5

then substitute y= 72/5 in the first equation x= 6 - 2/3y

then x = -18/5

Answer:

16>x/2

Step-by-step explanation:

Answer:

x = 9 and -9

Step-by-step explanation:

[tex]x^{2}[/tex] -81 = x  add 81 to both sides of the equation

[tex]x^{2}[/tex] = 81  What number times itself equals 81?  9 and -9

Answer: + 9

Step-by-step explanation: add 81 to both sides to isolate x^2. we get x^2= 81. take the square root of both sides. the square root of x^2 is x and square root of 81 is 9 or -9. so x = 9 and -9.

Answer:

–1

Step-by-step explanation:

–5x –16 = 9x + x –1

–5x – 16 = 10x –1

–5x –10x = –1 + 16

–15x = 15

x = 15/–15

follow my account ^^

x = –1

The pay at each bank for the given month is $56.5 to Bank A and $47.5 to Bank B.

For the statement based question first of all try to find out that what is given in the statement and what we have to find out. Now, try to form the statements in the mathematical notation and then solve the equations by performing certain mathematical and algebra operations according to need.

In the question statement,

It is given that total number of transactions are 35 in a given month and pay for 2 banks are given to us. we need to calculate the total payout of transactions for both the banks.

Bank A charge $25 monthly fee on a checking the accounts, plus

$ 0.90 for each transaction.

As Charmaine makes 35 transactions.

Total charges of bank A= $25 + (0.9)35

Total charges  of bank A= $25+31.5 = $56.5

Also,

Bank B charge $30 monthly fee on a checking the accounts, plus

$ 0.50 for the each transaction.

Total charges of bank B= $30 + (0.5)35

Total charges of bank B= $30+17.5

Total charges of bank B= $47.5

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The complete question is :

Charmaine is comparing offers from two banks on checking accounts that include debit cards. Bank A charges a $25 monthly fee for a checking account and debit card, plus$0.90 for each transaction. And a  Bank B charges a $30 monthly fee for a checking account and debit card, plus $0.50 for each transaction. Suppose Charmaine makes 35 transactions in a given month.

How much would he pay at each bank for the given month?

Bank A

Bank B

The maximum walking speed of the Giraffe is 1.41 times greater than the maximum walking speed of the Hippopotamus

From the question, we are to determine how much greater the maximum walking speed of Giraffe is to that of Hippopotamus

From the give information,

The maximum walking speed, S, is given by

S = √gL

Where g = 32ft/sec
and L is the length of the animal's leg

Thus,

For a Giraffe with a leg length of 6 feet

S = √32×6

S = √192

S = 13.856 ft/sec

For a Hippopotamus with a leg length of 3 feet

S = √32×3

S = √96

S = 9.798 ft/sec

Now, we will determine how many times greater 13.856 is than 9.798

13.856/9.798 = 1.41

Hence, the maximum walking speed of the Giraffe is 1.41 times greater than the maximum walking speed of the Hippopotamus

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Answer:

The line is y=1x+8

Step-by-step explanation:

We can use point-slope form of a line to make an equation. Point-slope form is as follows:

y-y₁=m(x-x₁)

**The variables y₁ and x₁ are where we will plug in our given coordinates and the variable m is your slope.

1. Plug in the given info:

y-10=1(x-2)

2. Distribute the 1:

y-10=1x-2

3. Add 10 to both sides:

y=1x+8