Help pls help me with homework

Answer:

the scale factor in the dilation is 1/3

Step-by-step explanation:

image-9

preimage -3

  3/9 = 1/3

Answer:1/3 or c

Step-by-step explanation:

just got it right in edgn gimme brain pls

Answer:

c

Step-by-step explanation:

Beejjj

Each person spends 2.53 days showering in a year.

Algebra is a study of mathematical expressions, in which numbers and quantities are represented in formulas and equations by letters and other universal symbols.

Given that,

Time taken by one person to shower = 5 minutes.

Also, one person take shower 2 times in a day.

Total time taken to shower twice per day = 5 x 2 = 10 minutes.

Since, in one year total number of days = 365.

Time taken to shower in 365 days = 365 x 10 = 3650 minutes.

In one day total number of minutes = 24 x 60 = 1440 minutes.

Total days = 3650 / 1440 = 2.534722 days = 2.53

Person showers for 2.53 days in a year.

To know more about Algebra on:

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Answer:

False

Step-by-step explanation:

1+8=9

9+10=19

1y+8y=9y

9y+10y=19y

19y=20y

The equations dont match.

Hence, the equation is false.

Answer:

False.

Step-by-step explanation:

1+8+10 is 19. 19 is not equal to 20.

Answer:

Step-by-step explanation:

Sum of interior angles in a triangle is 180degree.

<B + 15degree + 45degree = 180degree

<B = 180 - 45 - 15 = 120 degree

By sine rule,

sin<B / AC = sin<C / AB = sin <A / BC

sin120degree / 200 = sin15degree / AB = sin45degree / BC

AB = 200*sin15degree/sin120degree

= 59.77

BC = 200*sin45degree/sin120degree

= 163.30

Answer:

10 times

Step-by-step explanation:

Let x be the amount of times you go to the gym

Option A would be 20+2x

Option B would be 4x

now the question is after how many trips would the cost be the same?

20+2x=4x

Solve the equation so

20=4x-2x

20=2x

X=10

It would take 10 times for the cost to be the same for both options

Answer:

374 marbles

Step-by-step explanation:

Paul (P) has 1/5 this was given

Shawn (S) has 3/8 this was given

That means Tim (T) must have 17/40 because 1/5 + 3/8 = 23/40 and 1- 23/40 = 17/40

Those are the fractional amounts each boy has. We can set up an equation based on the information in the problem to get the total number of marbles (M). Tim has 84 marbles more than Paul. Thus, Tim has a greater number of marbles. 84 more, to be exact. Our equation would then look like this:

P+84=T

Because we have three unknowns, we need three equations. Thus, we need two more, but we can get them from our fractions at the top.

We need to have a question where we find the total number of marbles.

We know that Paul has 1/5 of the marbles. We can use M to represent the total number of marbles.

P = (1/5)M

T= (17/40)M

We had this from before: P+84=T

If we substitute into the equation:

(1/5)M + 84 = (17/40)M

Now there is only one variable in the equation and we can solve for M.

For M, I got 1120/3 which simplifies to 373 and 1/3, since there cannot be 1/3 of a marble, we can round to 374. There are three hundred, seventy-four marbles in the box.

If you want to check the answer, you can put (1120/3) back in for M in the third equation and you will see that each side is equivalent.

Answer:

BC||AD

Step-by-step explanation:

A parallelogram is said to be parallelogram iff it's opposite pairs of sides are parallel to each other.

Since one pair is parallel (given)

then another pair needs to be parallel.

Hence BC||AD

Answer:

254 units^2

I took the test and got it correct.

The surface area of a cone that has a radius of 5 units and a

height of 10 units is 508.06 square units.

Surface area is the total area of the exposed surfaces of a three-dimensional object. It is the sum of all the areas of the exposed faces of the object, including any curved surfaces. The formula to find the surface area of a cone is A=πr(r+√(h²+r²)).

Given that, radius of a cone is 5 units and the height of a cone is 10 units.

Surface area = 3.14×10(5+√(10²+5²)

= 508.06 square units

Therefore, the surface area of a cone that has a radius of 5 units and a

height of 10 units is 508.06 square units.

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Answer:D) because x had two lines that split through each other.

Step-by-step explanation:

Answer:

1. 7

2. 6

3. 35

Step-by-step explanation:

1. 35:60 = 7:12

2. ratio is 60:10 so 6:1 so 6

3. total number is 175.

ratio would be 175 :35 so 35:5

Answer:

Decrease of 55.6%

Step-by-step explanation:

Because it clearly decreased,

9 - 4 / 9

5 / 9

55.6% decrease

Answer:

$2.35

Step-by-step explanation:

Multiply $23.47 by 10%

Answer:

The difference is 21.21%

work shown below

Step-by-step explanation:

I'm going to first find the difference between both.

85-60=25

Now, we have to find 25% of 85

We don't have to use the formula, we can do this in our brain, like this -

We can see that 25% of 80 = 20, since 25 = 1/4, and 1/4 of 80 = 20, then, there is the 5 part left, how do we find that??? well, 25% of 5 = 1.25, since 1.25x5=5,

So hence, our answer is 21.25

Hi! 29.4118 (decrease) is your answer. My work's below!

- - - - - - - - - - - - - - - - - - - -

Here's a formula for percentages I've used...

(Old # - New #  ) /Old # x 100

- - - - - - - - - - - - - - - - - - - -

In this case, the old number is 85, and the new number (today's pizza number) is 60.

(85 - 60) / 85 x 100 =

(85 - 60 = 25)

25 / 85 = 0.29411764705

0.29411764705 x 100 =  29.411764705

Now, round it to the nearest hundredth.

29.4118  (decrease)

- - - - - - - - - - - - - - - - - - - -

Good luck! :)

~pinetree

Answer:

Step-by-step explanation:

(x - 3) (x - 9i) (x + 9i) = 0

(x - 3) (x² + 81) = 0

x³ - 3x² + 81x - 243 = 0

Answer:

3.31

Step-by-step explanation:

14ª1 is 718th 15/10 is equal to 15 and 10 tenths

14.76

12.3

*

1.2. =14.76

Answer:

14.76

Step-by-step explanation:

12.3 x 1.2=

12.3

x 1.2

--------

  24.6

+123.0

---------

14.76

Answer:

2240

Step-by-step explanation:

If 36% out of 100% passed, then

100% - 36% = 64% failed

64% of 3500 = 0.64 × 3500 = 2240

Answer:

About 554 carrots aren't rotten.

Step-by-step explanation:

100% - 27% = 73%

73% = 0.73

760 x 0.73 = 554.80

Answer:

205.2 carrots went rotten

Step-by-step explanation:

27% of 760 = 205.2

I hope I'm not too late and that this helps!

If it does, please give me brainliest :)

Answer:

The denominators of the fractions are 2 and 10.

The fractions with numerators of 1 that have sum of 3 / 5  is calculated below

The sum of the fractions are 3 / 5. Each of the fractions have a numerator of 1. Therefore, let the denominators be x and y

1 / x + 1 / y = 3 / 5

Therefore,

1 / x  + 1 / y = 3 / 5

y + x / xy = 3 / 5

cross multiply

5y + 5x = 3xy

Using hit and trial method,

5(2) + 5(10) = 3(10)(2)

10 + 50 = 60

60 = 60

The values are same.

Therefore, the denominators are 2 and 10.

Step-by-step explanation:

The type of ramen that contributed the most to the test statistic is C. Vegetarian ramen.

It should be noted that test statistic simply means a method in statistics that's is used to decide whether a data supports a hypothesis.

In this case, the type of ramen that contributed the most to the test statistic is the vegetarian ramen based on the percentage allocated. There's also sufficient evidence to conclude that rte proportion changed.

Learn more about test statistic on:

https://brainly.com/question/4621112

Answer: Vegetarian ramen

Step-by-step explanation:

Answer:

I didn't understand properly, but if your question is what the median is, then it's $115.

Step-by-step explanation:

Don't have one sorry,

Answer:

statement : ABCD is a parellogram reason: given

Question :-

Answer :-

[tex] \rule {180pt} {2pt} [/tex]

Given :-

To Find :-

Solution :-

As per the provided information in the given question, we have been given that the Edge of the Cube is 21 cm . And, we have been asked to calculate the Volume of the Cube .

For calculating the Volume , we will use the Formula :-

Therefore , by Substituting the given values in the above Formula :-

⇒ Volume = ( edge )³

⇒ Volume = ( 21 )³

⇒ Volume = 21 × 21 × 21

⇒ Volume = 441 × 21

⇒ Volume = 9261

Hence :-

[tex] \underline {\rule {180pt} {4pt}} [/tex]

Answer:

Box A is greater than Box B by 34.

Step-by-step explanation:

First, you need to start with finding the surface area of every individual side   on Box A we have side A, B, and C. After finding the individual area for each side,  double each area because there is two of each side. This is the the same method you apply to Box B.

Then subtract the surface area of Box B from Box A.

Answer:

24 is the answer

Step-by-step explanation:

1/4x4=2 per 1/2 week she can make 4

1/2x4=8 per week

and 8x3=24 so 24 per week

I hope this helped :)

here it is the sum of interior angles of a triangle =180

Answer:

35+3 x+2 +52=180

35 +3x+6+52=180

93+3x=180

3x=87

x=87

   ---

    3

x= 29

c=3[x+2]

substituding

c=3[29+2]

c=3x31]

c=93

35+93+52=180

i wrote it down so yall can copy and paste

Answer:

Ok ------------------

Answer:

AC = 8

Step-by-step explanation:

Area of kits is half the product of diagonals

[tex]Area\; of \;kite = \frac{d_1d_2}{2}\\\\36 = \frac{AC*BD}{2} \\\\36 = \frac{AC(6+3)}{2} \\\\36*2 =9AC[/tex]

AC = 72/9

AC = 8