8th grade urgent math super easy please

Answer:

h= -35/4

Step-by-step explanation:

decimal form: -8.75

Mixed number form: -8 3/4

Answer:

you should get off the team

Step-by-step explanation:

cuz you do not know what to do

Answer:

honestly stay if you think you can do it

Step-by-step explanation:

don't do it if you don't want to

Answer:

56.4 pounds

Step-by-step explanation:

Multiply 12 (kittens) by 4.7(pounds) and you get 56.4 pounds, the total weight of the kittens combined.

Answer:

The dimensions that result in the maximum area are therefore;

Width = 3.5

Height = 3.5

Step-by-step explanation:

The given parameters are;

The area of the rectangle, y = x × h

Where;

x = The width of the rectangle

h = The height of the rectangle

By examination, we have;

x + h = 7

Therefore, x = 7 - h

Which gives;

y = x × (x - 7) = x² - 7·x

y = x² - 7·x

At x = 0, y = 0

At x = 7, y = 0

However, at x = 1, y = -6

Therefore, the function should be, y = -(x² - 7·x)

The maximum occurs where dy/dx = 0, which gives;

dy/dx = d-(x² - 7·x)/dx = 0

dy/dx = 2·x - 7 = 0

2·x - 7 = 0

x = 7/2 = 3.5

On second derivative, we have;

d²y/dx² = 2, which gives a local minimum

x = 3.5 at maximum height

Which give, the maximum height, [tex]y_{max}[/tex] = -(x² - 7·x) at x = 3.5

∴ [tex]y_{max}[/tex] = -(3.5² - 7×3.5) = 12.25

The maximum height = 12.25

The dimensions that result in the maximum area are therefore;

Width, x = 3.5

Height, h = 7 - x = 7 - 3.5 = 3.5

Height, h = 3.5.

Answer:

4.802 x 10^7

Step-by-step explanation:

Hope this helps! :)

If this wasn't what you were looking for please don't hesitate to comment again. Have a nice day/night! :)

Answer:

4.802 x 10 power of 7

Step-by-step explanation:

i did this so i know

Answer:

6/8

Step-by-step explanation:

x^2=36/64

x=√36/√64

x=6/8

Answer:

Three hundred fifty-five

Answer: 10.5

Step-by-step explanation:

20+25x=282.50

Subtract 20 on both sides

262.50

Divide each side by 25

You get 10.5

Answer:

64/35

In mixed number form: 1 29/35

Step-by-step explanation:

Thats my fasted record for solving a division problem hehe :) You're welcome!

Answer:

I didn’t mean to click

Step-by-step explanation:

I can’t click off now sorry

Answer:

I'm also solving this out from delta math

Step-by-step explanation:

sorry for not giving you a answer >_<

Answer:

8.50 divided by 1.25 then when u get the answer subtract 40

Answer:

25

Step-by-step explanation:

so instantly 40-8.50=31.5

The question is very vague because it doesn't state the number of rides he wants to go on in minimum.

if you do 1.25x25=31.25

According to that, he will leave with a change of 0.25 and obv u cannot go on half a ride...

So in about 2 mins i guess it is 25???

Add me on instagram: vnshl

Answer:

x = 8

Step-by-step explanation:

Answer:

x=8

Step-by-step explanation:

x-1-5=2

first you add 6 to 2 then you get x=8

Answer:

the answer is 4 hours

Answer:

3 hours

Step-by-step explanation:

Since you payed 10 dollars you would take out $6 first then divide 4 by 2 which gives you two so two plus the first hour gives you 3 hours

Answer:

D)y=5x³ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

Answer:

y = 5x^3

Step-by-step explanation:

If there is an exponent other than 1 on a variable, then it is not linear.

Answer: y = 5x^3 since the exponent on x is 3.

Answer:

yes

Step-by-step explanation:

Answer:

The shorts cost $53.85

Step-by-step explanation:

The shoes cost $25, and so if he paid $78.85, then the shorts are $53.85.

Answer:

D. Hamish earns $20 per hour, and Harry earns $26 per hour.

Step-by-step explanation:

Hamish and Harry work as plumbers. Harry earns a dollar more than 5/4 the amount Hamish earns per hour. The amount Harry earns per hour is $2 less than 7/5 the amount Hamish earns per hour. How much does each of them earn per hour?

Hamish earnings per hour = x

Harry earnings = 1 + 5/4x

The amount Harry earns per hour is $2 less than 7/5 the amount Hamish earns per hour

Harry also earns = 7/5x - 2

Equate both Harry's earnings

1 + 5/4x = 7/5x - 2

Collect like terms

1 + 2 = 7/5x - 5/4x

3 = 28x-25x/20

3 = 3/20x

Divide both sides by 3/20

x = 3 ÷ 3/20

= 3 × 20/3

x = 20

Hamish earnings per hour = x

= $20

Substitute Harry's earnings into 7/5x - 2

= 7/5 × 20 - 2

= 28 - 2

= 26

Harry's earnings = $26

D. Hamish earns $20 per hour, and Harry earns $26 per hour.

Answer:

About 379 kilometers

Step-by-step explanation:

1609 meters / mile = 1.609 kilometers / mile

1.609 kilometers / mile * 235.6 miles = 379.0804 kilometers

Answer:

She used an average of (115/30) gigabytes of data per day

Step-by-step explanation:

To get the average data usage per day, we simply divide the total data used by the number of days

Mathematically, that will be

115 gigabytes/ 30 days = 3.83 gigabytes per day

Answer:

x = 2

Step-by-step explanation:

-4/5(-8x + 6) = 1 + 7 (distribute first)

6.4x -4.8 = 8 (add 4.8 on both sides)

6.4x = 12.8 (divide by 6.4)

x = 2

PLUG IN

-4/5(-8(2) + 6) = 1 + 7

-4/5(-16 + 6) = 8

-4/5(-10) = 8

8 = 8

Answer:

y = x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

x - y = 1 ( add y to both sides )

x = y + 1 ( subtract 1 from both sides )

x - 1 = y , that is

y = x - 1 ← in slope- intercept form

Answer:

(2x2- 10x2+ 6x -3x2 + 15x -9) simplified to (-12x2+21x-9)

Step-by-step explanation:

I could explain but you would just be confused because I did it in my head and I don't do it the way they teach us to if you want to make sure my answer is right you should be able to simplify my simplified version back into the original problem

Answer:

20

Step-by-step explanation:

Answer:

m=2

Step-by-step explanation:

y=mx+b

5y=10x-15   dived all by 5

y=2x-3----------2 is the slope

y=mx+b

Answer:

11.9cm

Step-by-step explanation:

cos = adj/hyp

cos 24°= hcm/ 13cm

13 cos 24°= h

11.88= h

11.9 cm

Answer:

4 dollar for the first 3 lines

Step-by-step explanation:

Answer:

68.268%.

Step-by-step explanation:

Let \mu be the mean pregnancy length.

The given standard deviation, [tex]\sigma=7[/tex] days

The z-score:

z=\frac{x-\mu}{\sigma}

where x is any pregnancy length.

The range of x within 7 days of the mean pregnancy length is

[tex]\mu-7<x<\mu+7.[/tex]

z-score for this range is:

[tex]\frac{\mu-7-\mu}{\sigma}<z<\frac{\mu+7-\mu}{\sigma}[/tex]

[tex]\Rightarrow -1<z<1[/tex]

So, the area on the normally distributed curve for the above range of z-score will give the expected percentage of birds to occur within 7 days of the mean pregnancy length.

Now, from the z-score table:

The area from [tex]z = -\infty[/tex] to z=1 is 0.84134

and the area from [tex]z = -\infty[/tex] to z=-1 is 0.15866.

So, the area for -1<z<1

=0.84134 - 0.15866

=0.68268

Hence, the percentage of births would be expected to occur within 7 days of the mean pregnancy length=68.268%.

Answer:

5 adults went on the trip.

Step-by-step explanation:

There are 14 children ($75 each) and the total was $1475. We need to find out how many adults were there ($85 each)

c is for children and a is for adults

equation:  $75c+ $85a = $1475

$75(14)+ $85a= $1475

$1050 + $85a = $1475

-1050                   -1050

$85a = $425

85a/85 = 425/85

a = 5

5 adults went on the trip. Hope this helps! :)

There were 5 adults that went on the trip.

Unitary method is finding the value for a single unit.

According to the given question During spring break, a class of 14 children went to Walt Disney World in Florida the price for each child’s ticket was 75 dollars.

So, Cost of tickets of 14 children is

= (14 × 75) dollars.

= 1050 dollars.

Total amount spent on tickets for children and adults is 1475 dollars.

∴ Total amount spent for tickets for the adults is

= ( 1475 - 1050 ) dollars.

= 425 dollars.

Given price of one ticket for adult is 85 dollars, So for 425 dollars the no. of tickets will be

= 425/85 dollars.

= 5 tickets which states there were 5 adults.

learn more about unitary method here :

https://brainly.com/question/22056199

#SPJ2

Answer:

I believe 60 square units in the white rectangle and and 140 square units in the blue. Together would be 200 square units...i think...im sorry if i'm wrong

Step-by-step explanation:

because lxw, 10x6, and lxw, 14x10, add you get 200

Answer:

x = -18, y = 14

Step-by-step explanation:

4x + 6y = 12

x + 2y = 10

Divide both sides of the first equation by 2. Write the second equation below it.

2x + 3y = 6

x + 2y = 10

Rewrite the first equation. Multiply both sides of the second equation by -2 and write below it. Then add the equations eliminating x.

      2x + 3y = 6

(+)  -2x - 4y = -20

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

             -y = -14

y = 14

Substitute 14 for y in the second equation and solve for x.

x + 2y = 10

x + 2(14) = 10

x + 28 = 10

x = -18

Solution: x = -18, y = 14