Mathematics High School

please help and show work ​

Please Help And Show Work

Answers

Answer 1

Answer:

see explanation

Step-by-step explanation:

(3)

The opposite sides of a parallelogram are congruent, so

6x = 3x + 15 ( subtract 3x from both sides )

3x = 15 ( divide both sides by 3 )

x = 5

and

2y - 10 = y + 5 ( subtract 5 from both sides )

y - 10 = 5 ( add 10 to both sides )

y = 15

Then x = 5 and y = 15

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(4)

The diagonals of a parallelogram bisect each other, thus

y = 4x - 6 → (1)

9x - 25 = 2y → (2)

Substitute y = 4x - 6 into (2)

9x - 25 = 2(4x - 6)

9x - 25 = 8x - 12 ( subtract 8x from both sides )

x - 25 = - 12 ( add 25 to both sides )

x = 13

Substitute x = 13 into (1)

y = 4(13) - 6 = 52 - 6 = 46

Then x = 13 and y = 46

Related Questions

A lawn mowing service charges $280 to mow 8 acres and $385 to mow 11 acres. Find the slope in cost per acre.

Answers

Answer:

35/1

Step-by-step explanation:

slope = rate of change

dollar amount changed by 105 while acreage changed by 3

105/3 reduced to 35/1

Solve. Show steps. Write the solution set using set-builder notation.
-2<=1-3x<=2
(<= means greater or equal to)

Answers

Answer:

< is greater sign and = is equal to sign

520% of 100 Show Your Work

Answers

Answer:

520% of 100 = 520

Step-by-step explanation:

here, let the number be x

x = (520/100) × 100 (since % means-divide by 100)

x = 520

hence 520% of 100 is 520

An escape room company has found that their nightly revenue (in dollars)
can be modeled by the function R(c) = -0.6c2 + 54c + 100
where c represents the cost of admission.
15) What cost of admission will maximize nightly revenue?
A)
$45.00
C)
$90.00
B)
$54.00
D)
$100.00

Answers

Answer:

B) 54.00

Step-by-step explanation:

Find the average rate of change of the tree over time. In 1965 the tree has a diameter of 135 in. And in 2005 it has a diameter of 139 in. B)Predict the diameter in 2035.

Answers

Answer:

0.1 in per year ; 142 in

Step-by-step explanation:

Giveb that :

Diameter of tree in 1965 = 135 inches

Diameter of tree in 2005 = 139 inches

Average rate of change:

Change in diameter / change in time

(139 - 135) / (2005 - 1965)

4 / 40

= 0.1 in per year

Predict diameter in 2035;

Initial diameter + (average rate of change * (Number of years from initial)).

135 in + (0. 1 * (2035 - 1965))

135 in + (0.1 * 70)

135 in + 7 in

= 142 in

How can you write a linear function in the form y=mx + b by using the two points given below (0,-2), (2,6)

Answers

Answer:

y = 4x - 2

Step-by-step explanation:

m = y-y/x-x

m = 6-(-2)/2-0

m = 8/2

m = 4

Answer:

y=4x-2

Step-by-step explanation:

r^3=47.77
need help hurry

Answers

Answer:

[tex]r = 3.63 (approximately)[/tex]

Step-by-step explanation:

[tex]r^{3} = 47.77\\[/tex]

[tex]r = \sqrt[3]{47.77} \\r = 3.63...[/tex]

At the nearest wholesale 3 bags of cereal cost 28.75 at this rate how much would 5 bags of cereal cost

Answers

Answer:

5 bags will cost $47.09

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

28.75/3=9.58
9.58*5=47.9
So the answer is 47.9

Since people are sad they missed my 50 points, here is 100 points for the first 2 to answer. First one gets branliest aswell.

Answers

Ummm is there something I Guccie

Select the image of the figure after a rotation of 270⁰ about the origen

Answers

Answer:

10

Step-by-step explanation:

I think I don’t evenknow !

please help me i really dont know this

Answers

Answer:

Okay, so..if i am thinking correctly you would have to times the numbers the original way that you would multiply anything with... then the remainders im sure that you probably just have to add those in...

(listen i am not so sure about this, i am in 6th grade...but hopefully i helped a little, sorry if i didn't help at all, i rly am... :) )

Step-by-step explanation:

HOPE I HELPED SORRY IF NOT, DON'T COUNT ON MY HELP..

I really am sorry if i didn't help y'all out... :/

<3

1.Evaluate: 144/16

2.Evaluate: 13.5 x 17

PLSSSS HELP

Answers

Answer:

1. 144 : 16 = 9

2. 13.5 x 17 = 229.5

I NEED HELP RIGHT NOW!!! please help me! i don understand this! :(

Answers

I agree with you BOOHOO

i need help please answer for me ... Logan drove from New Orleans to Nashville to visit friends. Logan drove the speed limit which was 60 miles/hour. If Logan's driving time for the trip was 9 hours, how many miles did Logan drive?

Answers

1 hour = 60 miles
You have to multiply 60x9= 560
560 miles

Melina wants to achieve a race of 22 miles an hour. She completes 10 miles in 30 mins. Did Melina achieve her goal ?

Answers

No. If she went 10 miles in 30 minutes, then she will travel 20 miles in 60 minutes (one hour). Her goal was to achieve 22 miles in an hour, so she came up a little short of her goal.

Need help with question number 11

Answers

Answer:

..

Step-by-step explanation:

Answer:

Done! I already sent you the answer.

Step-by-step explanation:

plz help will give brainliest

Answers

Answer:

Step-by-step explanation:

Its the fourth choice, 8000 is closer to 8132 so you would round that down instead of choosing 8500. Also, 8000 ÷ 20 = 400

*PLEASE HELP* I NEED TO FINISH THIS IN 30 MINUTES (I’ll give brainlist)

Answers

Answer:

A

Step-by-step explanation:

Answer:

C i think it's C but im not really sure

evaluate the following:

csc(0)=

sec(0)=

cot(0)=

Answers

Answer:

Step-by-step explanation:

we need that theta angle .. soooo.... use SOH CAH TOA  to remind yourself how the trig functions fit on the triangle.....

since we have all 3 side any one of the above trig functions would work.  as a side note.. Tan is limited to the 1st quadrant on a calculator.. so maybe Cos is a good choice. although it would work in this case....

sooo ....

Cos(Ф) = Adj / Hyp

Ф = arcCos( 24 /25)

Ф ≈16.26°

I don't have csc on my calculator but I know that  1/sin  = csc  sooo

csc(16.26)=1/sin(16.26) ≈ 3.57

sec(16.26)= 1/cos(26.26) ≈ 1.041

cot(16.26) = cos(16.26) / sin(16.26) ≈3.476

Answer:

csc(0)= 25/7

sec(0)= 25/24

cot(0)= 24/7

Step-by-step explanation:

plz help............ ​

Answers

4. x.y

Step-by-step explanation:

thats the answer, Its number 4

The answers are 7, 15, 5, and 10

Write the ratio as a fraction in simplest form.

51:9

Answers

Answer:

The ratio of 51:9 in it's simplest form is 17:3.

The ratio of boys to girls in a group is 7:2. If there are 60 more boys than girls, work out how many girls there are.

Answers

Answer:

Step-by-step explanation:

So, kids are divided into 8 total parts.

7 - 1 = 6 more parts that are boys. The 48 extra boys are those 6 parts.

48/6 = 8 boys per part

All parts have the equal number of kids, so one part girls also has 8.

There are 8 girls (and 56 boys. 8:56 = 1:7).

Please answer the math question

Answers

Answer:

A does not represent a function

Please answering will mark brainliest.

Answers

Step-by-step explanation:

If water is being poured into a bucket, the amount of water inside the bucket would increase as time passes.

Hence the slope of the line should be increasing. The best answer is Graph C.

Find the measure of angle A

Answers

Answer:

it is 60 of right angle

Step-by-step explanation:

there

4x+5+13x+90=180
17x+95=180
17x=85
x=5

How can you use the coordinates of two points on a line to determine the slope of the line?

Answers

Answer:

you can use the slope intercept formula!

y2-y1/x2-x1

Step-by-step explanation:

lets take an example!

the coordinates of 1 point are (2,4) and the other point is (4,6)

so lets plug in (x1,y1) (y1,y2)y2 is the y intercept of second point so it is 6 minus y1 which is 4.

6-4/x2-x1

lets do same for x!

6-4/4-2

lets solve

2/2

=1

the slope is 1

how can i raise my grade

Answers

Answer:

You can try asking for extra credit assignments, and just become a try hard on whatever assignments you have left. There's not much other thing besides asking for extra credit and trying your best on the assignments you have left

The hanger image below represents a balanced equation,
6
21
Find the value of d that makes the equation true.
MY
d=

Answers

Answer:

The value of d that balances the equation is d=15

Step-by-step explanation:

Equations

We are given an image with a hanger that represents a balanced equation.

If the equation is balanced, then the 'weights' of each side should be equal.

On the right side, there is 21 and on the left side, there are 6 and d.

Adding both, we have 6+d on the left side.

Equating both sides:

6 + d = 21

To find d, we subtract 6 on both sides:

d = 21 - 6

d = 15

The value of d that balances the equation is d=15

Answer:

d=15

Step-by-step explanation:

6+d=21

so that means d=15

6+15=21

hope this helped! :)

could you help me with this

Answers

Answer: 40

Step-by-step explanation:

All you have to do is divide it. However, the actual answer is 40.5, but I'm sure that they round it.

Answer:

There would be 40

Step-by-step explanation:

What is the solution to this inequality?

42.06 = 21.33 + 3x

Answers

Answer:

x = 6.91 hope this helps pls lmk

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