Mathematics High School

Plz, help I have no clue how to solve this.

Answers

Answer 1

Answer: Create equations. Top length=Bottom length

Left side = right side.

Combine like terms and rewrite the equations.

Use the new equations to create a system of equations to solve for x and y.

Once you have x and y, you can substitute those in the expressions for the lengths of the parallelogram.

You should end up with top and bottom lengths of 10. The sides are 9.

Step-by-step explanation:

3x-5 = 18 -2y . Rewrite as 3x + 2y = 23

x+4 = 21 -3y Rewrite as x + 3y = 17

The system of equations is

3x + 2y = 23 and x + 3y = 17 . To solve by substitution, multiply the second equation by -3 It becomes -3x-9y= -51 Add the equations so the x terms cancel. Solve for y

3x + 2y = 23

-3x - 9y = -51

0 -7y = - 28 Divide both sides by -7. y = 4

Substitute 4 for y, solve for x

x + 3(4) = 17

x + 12 = 17 . Subtract 12 from both sides x = 5

Substitute the values of x and y in the expressions

Top: 3x-5 is 3(5) -5 becomes 10

Bottom: 18 -2y is 18 - 2(4) becomes 10

Left: x +4 is (5) + 4 becomes 9

Right: 21 - 3y is 12 -3(4) becomes 9

Related Questions

Determine which function has a greater change of rate.
Be sure to show work as well.

Answers

Answer:

Step-by-step explanation:

You need to find the slope in A. y = x + (4x - 1) = 5x -1. The slope is 5.

In B, as x increases 1 unit, y increases 1 unit. Therefore, the rate of change is 1/1 = 1

Conclusion: In A the rate of change is 5 and in B the rate of change is 1.

Therefore, A has a greater rate of change

PLZ HELP PLZ PLZ PLZ HELP

Answers

Answer:the diameter is 7

Step-by-step explanation: 21.98 divide by pi is 7 so diameter is 7

Increase the number 60 by 30%

Answers

Answer:

Step-by-step explanation:

10% = 6

⬇️ x3

30% = 18

⬇️ Add onto 60

60+18=78

10% of 60=6
30% of 60=18
60+18=78

four tanks each had 54 litres and 750ml. what is their total capacity in litres

Answers

Answer: 219 I beleive

Step-by-step explanation: 54(4)+(.750)4=219

Answer:

each tank = 54 + (750÷ 1000) liter = 54.75L

so the capacity of the four tanks = 4x 54.75 = 219litre

Step-by-step explanation:

1) change 750 ml int litre which is equal 750÷1000 = 0.75L

2) add 54 +0.75

3) multiply 4 by 54.75 = 219L

Mrs. Clark runs 1 3/4 miles in 1/3 hour How many miles can she run in one hour?

Answers

I hope this is right.....

13/4 x 1/3 = 13/12 which in mixed number form is 1 and 1/12.

Have an awesome day :)

Evaluate each expression:
1. (-1) x 2 x 3
2. (-1) x (-2) x 3
3. (-1) x (-2) x (-3)
Need Answer for all the expressions.

Answers

1. 6
2. 6
3. 6

The answers all look different but they all have the same answer

I don’t understand this at all please help

Answers

(-2,3) you go over to the left 3 and down 2

Take the points that the three dots are on (remember over, then up) take the x from each of the three dots and plug it into the formula. So for example p=(-5,5) (-5+3)(5-2) and then put those answers into new chordates so -5+3 equals your first number (-2) and 5-2 is your second (3) and smash them together (-2,3)

A scientist makes $150,000 per year. She deposits 5% of her yearly income in a travel savings account. How much money should she have in her savings account by the the end of the year in dollars and cents?

Answers

Answer:

the answer is $7,500.00 or 7500

plz mark me as brainly

Step-by-step explanation:

I need help with number 5, and 6.

Please and thank you.

Answers

Answer:

5 - 1 year

6 - 738.92

Step-by-step explanation:

5: 260 = 250(1.04)^t

Divide both sides by 250, and we get 1.04. So t must be 1.

6: x + 45 = x(1.03)²

Solve to find x

A car dealership pays $8,350 for a car. They markup the price by 17.4% to get the retail price. What is the retail price of the car at this dealership?

Answers

Answer:

I belive its $9,802.9

Step-by-step explanation:

$8,350 x 0.174 ( 17.4 ÷ 100)

= $1,452.9

$8,350 + $1,452.9 = $9,802.9

3 of 5
In a group of 30 pupils, 13 play the flute only.
1 plays the piano only.
4 play both instruments.
How many pupils play neither instrument?

Answers

Answer: 6 or 0.6

Step-by-step explanation:

An African elephant weighed 209 lbs when it was born. Baby elephants gain an average of 38 lbs per week.
How many weeks will it take for the baby elephant to weigh 1197lbs?

Answers

Let the number of weeks be x
38x + 209 = 1197
Subtract 209 on both sides
38x = 1197
Divide 38 on both sides
x = 31.5 weeks

Examine the solution to the equation.
-6(x + 5) + 3 = -2(x + 4) - 4x
-6x - 30+3=-2x–8 – 4x
Which statements accurately describe this equation?
Check all that apply.
This equation has one solution.
This equation has no solution.
This equation has infinitely many solutions.
Any input value for the variable will generate a true
equation.
-6x-27 = -6x - 8
-27 = -8
Any input value for the variable will generate a false
equation.
Intro
Done

Answers

Answer:

The answer is 2 and 5

Step-by-step explanation:

15 feet by 120 inches area

Answers

Answer:

21600 In.

Step-by-step explanation:

First, turn 15 feet into inches

15*12 is 180

then do 120*180 which equals 21600 In.

r(2s)(t) when r=2, s=3, and t=5

Answers

Step by step- substitute the variables for the numbers in which they correspond- 2(2x3)(5)- simplify- 2(6)(5)- multiply- 2(30) - multiply again- 60 is your Answer.

Answer:

Step-by-step explanation:

2(2*3)(5)

2(6)(5)

2(30)

What does it mean to SOLVE a system of linear equations?

Answers

Answer:

In solving a system of linear equations, we try to find values for each of the unknowns that will satisfy every equation in the system

Step-by-step explanation:

Find the multiplier for 21.6% decay

Answers

Answer:

5pts

Step-by-step explanation:

The required multiplier for 21.6% decay is 78.4%.

Given that,
To find the multiplier for 21.6% decay

What is percentages?

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

What is simplification?

The process in mathematics to operate and interpret the function to make the function simple or more understandable called simplifying and the process is called simplification.

In the question, the multiplier for the rate of 21.6% decay is to be determined.
A multiplier of decay implies decay = 1 - r

Since let the Decay multiplier be x
x = 1 - r
x = 1 - 0.216
x = 0.784
x = 78.4%

Thus, the required multiplier for 21.6% decay is 78.4%.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ2

what is 3x+5=-8(x+3)

Answers

Answer:

-29/11

Step-by-step explanation:

i used a calculator lol

Justin has a savings account.

He started with $25 in his account.

He deposits $10 into the account each
week.

Let 'b' represent the amount Justin has in the bank account after 'w' weeks.
---
Which statement is correct?

A. The variable W is dependent on the variable B.

B. The variable B is dependent on the variable W.

C. Both B and W are independent variables.

D. Both B and W are dependent variables.

Answers

Answer:

D. Both B and W are dependent variables.

Step-by-step explanation:

Answer:

Step-by-step explanation:

took the test before an got the answer right

Please help I’ll give brainliest and 20 extra points!

Select the box in each row to identify the equivalent decimal.

Answers

Answer:

42/63 = .6 repeating

30/38 = .625

36/60 = .6

57/90 = .63 repeating

Step-by-step explanation:

Nd if I'm wrong then the 2nd nd 3rd one are switched

❗️❗️EASY 10 points HELP ME ❗️❗️There
are 10 game pieces in a bag 5 yellow, 2 red, and 3 green,
You randomly select a game piece from above and do not put it back. What is the probability
choose yellow then red?
1/9
1/2
3/7
d
3/10

Answers

Answer:

1/2

Step-by-step explanation:

since there are 5 yellow pieces that is half of the game pieces

Find the distance between the two points. (2, 4), (7, 2)

The distance between the two points is __ units.

Answers

Answer:

✓29

Step-by-step explanation:

x1 = 2

x2 = 4

y1 = 7

y2= 2

Then you apply it into the formula of distance.

hope It helps.

what is the area of the figure below? Equation below v

Answers

Answer:

68 in^2

Step-by-step explanation:

please help!

Create an equation for the following situation and find the value of x.

8 more than 2 times a number x, all divided by 5 equals 2.

Answers

Answer:

8+2x/5=2

2x/5=2-8

2x/5=-6

2x=-6x5

2x=-30

x=-30/2

x=-15

Step-by-step explanation:

How would it be? I said it is wrong.

Answers

Answer:

you got it kinda just take away the shaded part for the angle <edf

Step-by-step explanation:

Answer:

The image has the area outlined that you should shade.

Step-by-step explanation:

Hope it helps and is correct!

Use your plan to find the temperature at the top of Mt Everest.
The temperature at the top can be found by evaluating the
expression —3— 58 (1).

Answers

Answer:

- 61

Step-by-step explanation:

-3 - 58 = -61

times 1 is

is -61

What's the square root of 64 times 3

Answers

Answer:

Step-by-step explanation:

Answer:

About 13.86

Step-by-step explanation:

64 x 3 = 192

[tex]\sqrt{} 192[/tex] = 13.8564064606

If you were asking what [tex]\sqrt{64}[/tex] multiplied by 3 was, that answer would be 24. I read it as if you were asking what [tex]\sqrt{64 x 3}[/tex] is. :)

Solution for 1/3p+8=11

Answers

Answer:

p = 9

Step-by-step explanation:

The answer is p=9. I think

3
11/
Will the solution (-3, -7) make the following system of equations a true statement?
y = 4x + 5
y = x - 4

Answers

Yes
-7=4(-3)+5
-7=-12+5
-7=-7

-7=-3-4
-7=-7

Find slope intercept form.
(M=1/2) (6,3)

Answers

Answer:

y = (1/2)x

Step-by-step explanation:

Start with that form: y = mx + b. Substitute 1/2 for m, 6 for x and 3 for y, for the purpose of finding the value of the y-intercept, b:

3 = (1/2)(6) + b. Thus, b = 0 and the desired equation is y = (1/2)x.

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