i will give first person brainlist for first answer i need help fast
Mr. McCoy entered his classroom at 8:00 am and found the temperature to be 86 degrees. He immediately turns on the air conditioner. By 1:00 pm the temperature was down to 76 degrees The temperature went down at an even rate while the air conditioning was running. write an equation to find the temperature in Mr. McCoy's room at any given time between 8:00 am and 1:00 pm

Answer:

55

Step-by-step explanation:

.20*55=11-3=8

as per as I can think the answet will be 38

please give me brainliest if my answer is correct

Answer:

5

Step-by-step explanation:

the slope is the change in y divided by the change in x

as y goes up 5 x goes up 1

5/1=5 so the slope is 5

Answer:

6

Step-by-step explanation:

To find the slope you use rise over run.

Count how far each of the dots are from each other and you should get 6. That is your rise. See how far it goes to the right or left and you should get 1, which is your run.

Since it is rise over run, it would be 6/1, which makes your answer 6

Answer:

y=-2x+10

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

its b cause its asking you to 3 3 3 its 9 theres 2 ms and 5 cs bassicly out in a si.pkw form

Answer:

They can have infineyely many solutions :)

Answer:

Part A- an= an-1-5.9

Part B- -18.5,-24.4

Step-by-step explanation:

The solution to the system of equation is (7, 2)

Using the simultaneous equation:

5x + 3y = 41

2x + 3y = 20

using elimination method

Subtract equation 1 from 2 to have:

5x - 2x = 41 - 20

3x = 21

x = 21/3

x = 7

Substitute x = 7 into equation 1 to get y

5x + 3y = 41

5(7) + 3y = 41

35 + 3y = 41

5y = 41 - 35

3y = 6

y = 6/3

y = 2

Hence the solution to the system of equation is (7, 2)

Learn more here: https://brainly.com/question/15165519

Answer: 90°

Step-by-step explanation:

Angle b is vertical to the angle that has a measure of 90°

Hi there!

missing value: -9

1.Multiply the two negative:

[tex]-2[/tex]·[tex]-4=-8[/tex]

2.Find the value of 72*-8:

[tex]72*-8=-9[/tex]

Therefore, the missing value is -9.

Answer:

Step-by-step explanation:

Let B = the weight of box B

Let 2B = the weight of box A

Let 2B + 30 = the weight of box C

B + 2B + 2B + 30 = 640

5B = 610

B = 122 pounds, weight of box B

2B = 2(122) = 244 pounds, weight of box A

2B + 30 = 2(122) + 30 = 274 pounds, weight of box C

Answer:

60. its an equalateral, they all add up to 180

Step-by-step explanation:

Answer: 30 buttons

35 - 5 = 30

Answer:

30

35-5=30

Step-by-step explanation:

Answer:

Um 1.5 is less than 16 so it wont be a mixed number.

Step-by-step explanation:

Did you type the question wrong?

Step-by-step explanation:

1.5 is the less that 16 that why it is the mixed fraction

Answer: Each pair of gloves costs $15 and each pair of hat costs $10.

Step-by-step explanation:

Let x = Cost per pair of gloves

y= Cost per hat.

As per given, we have

[tex]5x+2y=95 \ \ \ \ (i)\\4x+y=70\ \ \ \ \ (ii)[/tex]

Multiply (ii) by 2 , we get

[tex]8x+2y=140\ \ \ \ (iv)[/tex]

Eliminate (i) from (iv), we get

[tex]3x=45\\x=15[/tex]

Put this in (ii), we get

[tex]4(15)+y=70\\60+y=70\\y=10[/tex]

Hence, each pair of gloves costs $15 and each pair of hat costs $10.

Answer:

Step-by-step explanation:

Since its the same line the slope is same:

Correct choice is B

Answer:

B. 2 2/3

Step-by-step explanation:

Hope this will help

Answer:

30 I am good but I don't know if it's right

Answer: The length of the hypotenuse (c) is 5

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

a & b are the legs (b is the base)

c = hypotenuse

a = 4

b = 3

a² + b² = c²

4² + 3² = c²

16 + 9 = c²

25 = c²

√c² = √25

c = 5

Answer: 81000 x 10 0

Step-by-step explanation:

The zero is meant to be a small zero on top of the 10 like a degrees symbol btw

Answer:

n=7.6

Step-by-step explanation:

350÷46=n

n=7.6

Hope this helps! :)

Answer:

Slope and a point that is not an intercept

Let

x ----> the time in hours

y ----> the area (in square meters) left to paint

we know that

Hiro paint at a rate of 8 square meters per hour

The rate is equal to the slope of the linear equation

we have the point (3, 28) ---> After 3 hours of painting, he had 28 square meters left to paint.

therefore

we have

Slope and a point that is not an intercept

Step-by-step explanation:

I hope this helps and pls mark me brainliest :)

Answer:

C  -  Slope and a point that is not an intercept

Step-by-step explanation:

Khan answer

Answer:

it would be 8 because it is a parallelogram and they are parallel to each other

Step-by-step explanation:

CD=AB

You can buy 10 magazines in $60.

A unit rate means a rate for one of something.

Given that, the cost of 4 magazines is $24.00

For 4 magazine → $24

So, for 1 magazine = 24/4 = $6

So, in $60,

60/6 = 10

Hence, you buy 10 magazines in $60.

For more references on unit rate, click;

https://brainly.com/question/11258929

#SPJ2

Answer:

t = 28

Step-by-step explanation:

56 = 2t

t = 56 / 2

t = 28

Hope that helps!

Answer: t= 28

Step-by-step explanation:

Isolate t by dividing both sides by 2.

Answer:

an = a1 + d(n - 1)

Step-by-step explanation:

an = 4 + -9(40 -1)

an = 4 + -9(39)

Answer: 284.7

Step-by-step explanation:

radius of cone and hemisphere are the same

volume of half sphere=(1/2)*(4/3)*[tex]\pi r^{3}[/tex]

                                    =(1/2)*(4/3)*3.14*[tex]4^{3}[/tex]                       (4*4*4=64)

                                    =133.97333

                                    =133.97

volume of cone= (1/3)[tex]\pi r^{2}[/tex]h

                         =(1/3)*3.14*[tex]4^{2}[/tex]*9                                      (4*4=16)

                         =150.72

total volume=133.97+150.72

                    =284.69

                    =284.7

y=2+3x

putting value on second equation we get..

x-2(2+3x)=-6

x-4+6x=-6

7x=-2

×=-2/7

& y=2+3(2/7)

y=2+0.87

y=2.87..Ans..

Answer:

x= 2/5

y= 3.2

Step-by-step explanation:

y-3x=2

y=3x+2

replace y with 3x+2 in second equation;

x-2(3x+2)= -6

x- (6x+4)= -6

x-6x-4= -6

-5x-4+4=-6+4

-5x= -2

x= 2/5

y=3x+2

y=(3×2/5) +2

y= 3.2