Does anyone know this. whoever answers first and correct ill give brainliest

Answer:

x = -20

Step-by-step explanation:

1) Isolate x

-2.5x - 10 = 40

+ 10 + 10

-2.5x = 50

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

-2.5 -2.5

x = -20

Answer:

x=-20

Step-by-step explanation:

-2.5x -10=40

-2.5x -10+10=40+10

-2.5x=50

-2.5x/-2.5=50/-2.5

x=-20

Answer: 60%

Step-by-step explanation:

First you have 1,080 satisfied out of 1,800.

Then you divide 1,080/ 1,800.

When you divide you get .6

Finally move the decimal 2 places to the right and you get 60 which is 60%.

Given:

Searches in February = 8972

There were 7,313 more searches in the library book checkout system in January than February.

To find:

The searches in both months.

Solution:

Searches in February = 8972

There were 7,313 more searches in the library book checkout system in January than February. So,

Searches in January = 8972 + 7313 = 16285

Now,

Total number of Searches in both months = January + February  searches

[tex]=16285 + 8972[/tex]

[tex]=25257[/tex]

Therefore, total number of searches in both months is 25257.

Answer:

BC + CD = BD

Step-by-step explanation:

that is the right answer

Answer:

D or BC+CD+BD

Step-by-step explanation:

Answer: First of all thats wrong. 1/2 + 10 = 10 1/2 and 1/4 + 54 = 54 1/4

Step-by-step explanation:

Answer:

It's letter D. It's four.

Answer:

Step-by-step explanation:

9x - 2c = k

    9x = k + 2c

     x  = (k + 2c)/9

Answer:

m = 5/3

Step-by-step explanation:

the slope is

                    5

                    _

                    3

Answer:

39

Step-by-step explanation:

the interior angles of a triangle equal 180.

180-(51+90)

180- 141 = 39

hope this helps :)

Answer:

I think its complementary

9514 1404 393

Answer:

  (-5,1)

Step-by-step explanation:

To eliminate x, multiply the first equation by 3 and add 2 times the second equation.

  3(-2x +7y) +2(3x -4y) = 3(17) +2(-19)

  -6x +21y +6x -8y = 51 -38

  13y = 13

  y = 1 . . . . . matches the third answer choice

  (x, y) = (-5, 1)

Answer:

s=5

Step-by-step explanation:

6s-4=8(2+1/4s) equals to s=5

Answer:

5

Step-by-step explanation:

i hope it's right

Answer:

15) 3(4+r)=-18

3x4+3xr

12+3r= -18

-12        -12

3r= -30

/3    /3

r= -10

Step-by-step explanation:

distribute the 3 to the 4 and the r you should then have 12+3r=-18 and so subtract from both sides 12 and you should have 3r=-30 divide both sides by 3 and you get your answer r=-10

Answer:

(7) n=9

8) x=8

9) m=-7

10) b= -6

11) r=6

12)b=10

13)v=8

14)k=-8

15)r=-10

16)p=20

17)v=10

18)x=21

19)a=28

20)b=10

Step-by-step explanation:

Answer:

Step-by-step explanation:

y=1/2x-3

Answer:

he gain 10%

Step-by-step explanation:

Answer:

He gained 10 lbs which is 13.3 % of 75

Answer:The answer is C

Step-by-step explanation:

When you plug it in 7*2 is 14+ 5*3 is 15 you add 14+15 you get 29 and then for the other equation you do 12-5 which gives you the x value of 7. Hope this helps.

Answer:

d

Step-by-step explanation:

Because it looks rigid

Answer:

I think the answer is A.

Can you make me brainlest plz? :)

Answer:

4.16

Step-by-step explanation:

50/12

Answer:

9.8

Step-by-step explanation:

You would see if the hundredths place is less that 5 or 5 and up. In this case it it less, so it would be 9.8 or 9.80

Answer:

Will clearly has 23 snow balls

Sarah has 161 snow balls

Logan has 322 snow balls

All in all thats a lotta dam snow balls hehe :)

Step-by-step explanation:

hope this helps yall :)

Answer:

siriously i dont know cuz im learning this in maths

area

perimeter

arc

Answer:

We also know that the sum of the measures of arcs AD, AB, CD, and BC must be 360 degrees, because there are 360 degrees in a full circle. Because AD = 2AB, we can substitute 2AB for AD. This means the measure of arc AB is 70 degrees, and the measure of arc AD is 2(70) = 140 degrees.

Step-by-step explanation:

hope that helps u

Answer:

The answer is y=-2/3x-1

Step-by-step explanation:

y-y=m(x-x1)

y-3=-2/3(x-(-6))

y-3=-2/3x-4

+3 +3

y=-2/3x-1

Answer:

1,596 cm cubed

Step-by-step explanation:

Volume of box = 12*7*19= 1,596 cm cubed

Answer:

1596

Step-by-step explanation:

To find the volume of a box, you multiply the length, width, and height of the box.

So, 12 times 7 is 84 times 19 is 1596.

Answer:

105km

Step-by-step explanation:

From the above question, the scale is

2.5 cm = 15km

Therefore,

17.5 cm = x

We Cross Multiply

2.5cm × x = 15km × 17.5 cm

x = 15km × 17.5cm/2.5

x = 262.5/2.5

x = 105 km

Therefore, the number of actual kilometres that are represented by 17.5 centimetres on the map is 105 kilometres.

Answer:

125 / 8 centimeters

Step-by-step explanation:

Given:

V = s³

Where,

V = volume of the cube

s = side length of the cube

if marie's cube has a side length of 2 1/2 centimerters

That is,

s = 2 1/2 cm

V = s³

= (2 1/2)³

= (5/2)³

= 125 / 8 centimeters

NOTE:

(5/2)³ = 5³ / 2³

= 5*5*5 / 2*2*2

= 125 / 8

Answer:

it would be 7

Step-by-step explanation:

the equation would be ( if you read the problem) -2+9 and that is equal to 7

Answer:

you didnt ask a question

Step-by-step explanation:

Answer:what is your question?

Step-by-step explanation:

Answer:

x = 150

Step-by-step explanation:

5 + x ÷ 6 = 30

x / 6 = 30 - 5

x / 6 = 25

x = 25 x 6

x = 150