Hiiiiiiiiii. plz help me and answer this correctly for brainliest and 50+ points

Answer:

49°

Step-by-step explanation:

First, solve for x.

3x-7+2x+17=90

5x+10=90

5x=80

x=16

Then put 16 in for x.

2(16)+17=

32+17=49

Answer:

Step-by-step explanation:

x≥3

x<5

x≤ 11/4

x>7

x<2

Answer: He can buy 5 ties

Step-by-step explanation:

12+10=22. 4x5=20. 22+20=42. If you add 1 more tie, you  will have $46, so you cannot add one more tie. So the most amount of ties he can buy is 5 ties, with $3 left to spare.

Answer:

M=0

Step-by-step explanation:

there you go almost sure it is

Answer:

rise/run=y2-y1/x2-x1

Step-by-step explanation:

(12,18)

(-15,-18)

Answer:

18+18/12+15= 36/27

or 4/3/ &  1 1/3

-Sumin <3

Answer:

A.

C.

D.

Step-by-step explanation:

Use the x-coordinate in place of x and compare the solution to the y-coordinate. All of the answers to these options are true.

Hope it helps!

Answer:

Jeremy constructed this solid by combining two rectangular prisms and a square pyramid.

A rectangular prism with a length of 6 meters, width of 14 meters, and height of 2 meters. A rectangular prism with a length of 5 meters, width of 8 meters, and height of 3 meters. A square pyramid with a base of 6 meters by 6 meters and triangular sides with a height of 7 meters.

What is the surface area of this figure?

_____________ square meters

320

322

√368

386

Step-by-step explanation:

it was that because you have to figure out the numbers and multiply all the number and you get the number 368

Answer:

368

Step-by-step explanation:

Answer:

416 in²

Step-by-step explanation:

Given that:

Height. h = 4 in

Length = 12 in

Width = 10 in

The surface area of a rectangular prism is obtained using the relation :

Surface Area, S = 2(lw + lh + wh)

S = 2[(10*12) + (10*4) + (12*4))

S = 2(120 + 40 + 48)

S = 2(208)

S = 416 in²

Answer:

im not even sure this is right

Step-by-step explanation:

A=a+b 2h=2+1.1

2·3.4=5.27

Step-by-step explanation:

Since y= -7x you will want to substitute the y in the other equation.

2x -(-7x) = -9

2x + 7x = -9

9x = -9

so x will be -1

y= -7(-1)

x= -1

y= 7

Answer:

x = -1 , y =7      (-1,7)

Step-by-step explanation:

[tex]y=-7x\\2x-y = -9\\[/tex]

[tex]2x+7x = -9[/tex]

[tex]2x+7x = 9x\\[/tex]

[tex]9x = -9\\[/tex]

[tex]\frac{9x}{9} =\frac{-9}{9}[/tex]

[tex]x = -1\\[/tex]

[tex]y = -7(-1)\\y = 7[/tex]

Answer:

46.6 inches in 5 years

Step-by-step explanation:

Answer: 46.6 inches in five years

Step-by-step explanation:

SO you wanna multiply 7.9 by 5 to get your grand total

Answer: 15

Step-by-step explanation: Good luck! :D

Answer:

U is (0,-8)

V is (0,-10)

T is (5,-8)

S is (5,(-10)

Answer:

65/12

Step-by-step explanation:

Answer:

245/12 IS ANSWER

Step-by-step explanation:

do you need an explanition for branliest?

Answer:

[tex]9[/tex]

Step-by-step explanation:

[tex]28 - 19 = 9[/tex]

Answer:

£2060

Step-by-step explanation:

If the bank pays then you are earning.

3% of 2000 = 60

2000 + 60 = 2060

Answer:

18a +9

Step-by-step explanation:

Brainliest?!?!!?

Step-by-step explanation:

If you want to expand it then,

9(2a+1)

= 18a + 9 (Ans)

Answer:

17t+9

Step-by-step explanation:

Answer:

120°

Step-by-step explanation:

Answer:

30% decrease

Step-by-step explanation:

Answer:

what the whole question

To solve a multi-variable problem, you need to isolate single variables. To do this, there are two ways to do it. One way you eliminate one of the variables and the other you substitute.

In this example, you are being asked to eliminate one of the variables. To do this, you multiply 2x+2y= 12 by 2 and get 4x+4y = 24.

See how now both equations contain a 4y?

Using this you can subtract one equation from the other.

5x+4y=28

- 4x+4y=24

And then you get x=4

To get the other variable, you substitute 4 in for x (in one of the equations) and then solve for y.

2(4) + 2y =12

8+2y= 12

2y=4

y=2

Therefore, x = 4 and y = 2

Answer:The new cost per person= $19 when there are 12 people

Step-by-step explanation:

Step 1

Let Number of people be rep as N

And Cost per person = C

such that the relationship of  number of people which varies inversely with the cost per person is given as

N∝ 1/C

Introducing constant of proportionality, k, we have that

N= K/C

such that when there were 4 people the cost per person was $57, K would be

N= K/C

4 = K /57

k= 57 X 4

k=228

Step 2

Therefore If the number of people changed to 12, cost per person would be

N= K/C

12= 228 / C

C= 228/12

C= 19

The new cost per person= $19 when there are 12 people

Answer:

A) 5

Step-by-step explanation:

p - 4 = 1

p = 1 + 4

p = 5

Answer:

2

Step-by-step explanation:

The first step is to convert the equation to slope-intercept form (y = mx+b).

2y+6 = 4x

2y+6-6 = 4x-6

2y = 4x-6

2y/2 = 4x/2-6/2

y = 2x-3

In slope-intercept form (y = mx+b), m is the slope. 2 is m in the equation, so therefore it is the slope.

Answer:

8.75

Step-by-step explanation:

3 1/2 times 5 times 1/2

Answer:-43 + 9x = 0

Step-by-step explanation:Simplifying

9x + -43 = 0

Reorder the terms:

-43 + 9x = 0

Solving

-43 + 9x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '43' to each side of the equation.

-43 + 43 + 9x = 0 + 43

Combine like terms: -43 + 43 = 0

0 + 9x = 0 + 43

9x = 0 + 43

Combine like terms: 0 + 43 = 43

9x = 43

Divide each side by '9'.

x = 4.777777778

Simplifying

x = 4.777777778