10=2x-20 solve for x

Answer:

Step-by-step explanation:

didn't distribute the 3 into the six

16z+72z-18-7-31z

57z-25

Answer:

31

Step-by-step explanation:

3x + 25 + 2x = 180

  3x + 2x = 180 - 25

  5x = 155

  x = 31

Answer:

-2x^2 + x^2 +11x +2

Step-by-step explanation:

f(x) = 2x^2-5x -3

g(x) = x^2 + 6x -1

h(x) = g(x) - f(x)

x^2 + 6x -1 - 2x^2 +5x +3

-2x^2 + x^2 +11x +2

Answer:

y=-0.215x^2+35

Step by Step:

Let, [tex]h=0[/tex],  [tex]k=35[/tex], [tex]x=8[/tex], [tex]y=21[/tex]

We know that, the general equation of the parabola.

   [tex]y-k = a(x-h)^2[/tex]

[tex]\Rightarrow y=a(x-h)^2+k .........(i)[/tex]

Substitute the  value of [tex]h, k, x, y[/tex] in equation [tex](i)[/tex] and find the value of [tex]a.[/tex]

  [tex]21=a(8-0)^2+35[/tex]

[tex]\Rightarrow 21=a\times 8^2+35[/tex]

[tex]\Rightarrow 21=64a+35[/tex]

[tex]\Rightarrow 64a=21-35[/tex]

[tex]\Rightarrow 64a=-14[/tex]

[tex]\Rightarrow a=\frac{-14}{65}[/tex]

[tex]\Rightarrow a=-0.215[/tex]

Hence, the equation of the parabola is:

[tex]y=-0.215x^2+35[/tex]

Answer:

Step-by-step explanation:

(2/3)/4=(2/3)*(4/1)=8/3=2 2/3

Answer:

yes???

Step-by-step explanation:

16 celsius is warmer than 0 celsius by 16 degrees.0 is colder by 16 degrees.

T o T hope that helped...

Answer:

a

Step-by-step explanation:

edg 2020

For every minute that passes, the airplane descends 1 kilometer. then option a is correct.

Suppose that the considered linear equation is of the form

y=mx+c

Then, when we change x by 1 unit, then:

The rate of change is the slope. The formula for slope is

m = y2 - y1 / x2 - x1

Using the first two points, (0, 12) and (2, 10), we have

m = (10-12)/(2-0)

m  = -2/2

m = -1

This means the plane descends 1 km per minute which means in 3 minutes' time, the plane descends 3 km.

Therefore, option a. For every minute that passes, the airplane descends 1 kilometer.

Learn more about the rate of change of a linear equation here:

https://brainly.com/question/12786410

#SPJ5

Answer:

2/3

Step-by-step explanation:

k = y/x

k = 2/3

Answer:

$3.2775

Step-by-step explanation:

0.95 x 3.45 = 3.2775

Answer:

$3.27

Step-by-step explanation:

Answer:

100% = 14

75% = 10.5

25% = 3.5

Answer:

Step-by-step explanation:

50% if a number is also 1/2 of that number. So, we multiply 7 by 2 to get 14.

Now we know that we need to solve for 25%, 75%, and 100% of 14.

100% of a number is just that number, so 100% of 14 is 14.

To solve for 75% of 14, we multiply 3/4 by 14.

3/4 x 14/1 = 42/4 = 10 1/2

The final number to solve for is 25% of 14.

1/4 x 14/1 = 14/4 = 3 1/2

Answer:

35 = x +4 (subtract 4 from both sides to isolate x)

x = 31

Step-by-step explanation:

I hope this helps :)

Answer:

Step-by-step explanation:

We have that Linda's net and expression incorrect

With the Expression of the surface area of attic

[tex]45(40+25+25)+1/2(40*15)[/tex]

Surface area is

[tex]X=4050+600\\\\X=4650ft^2[/tex]

So for the Question is Are Linda's net and  expression correct?

The answer is No Because

Her expression for the triangles are incorrect

[tex]1/2(40*15)[/tex]

Instead of

[tex]1/2*40*(15)[/tex]

Hence

Linda's net and expression incorrect

For more information on this visit

https://brainly.com/question/23246712

Answer:is 5/4/37/2

Step-by-step explanation:

Answer:

I think the answer would be r=-9

Step-by-step explanation:

12+r=3

-12     -12

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

r=-9

Answer:

100 miles

Step-by-step explanation:

20/60 = 1/3

1/3 x 300 = 100

Answer:

free ponts for me

Step-by-step explanation:

Answer:

Step-by-step explanation:

here you go mate

step 1

x-6 = 5(x + 2)  equation/Question

step 2

x-6 = 5(x + 2)  simplify

x+(-)6=5x+10

x-6=5x+10

step 3

x-6=5x+10  subtract 5x

-4x-6=10

step 4

-4x-6=10  add 6

-4x=16

step 5

[tex]\frac{-4x}{-4}=\frac{16}{-4} \\[/tex]

answer

x=-4

Answer: HERE IS THE GRAPH AND PLS CORRECT ME IF I"M WRONG :)

Step-by-step explanation:

Answer: 3/4

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

It Is >

Step-by-step explanation: Try Using Your Calculator It Help's.

I Also Took The Quiz And I Got This Question Correct.

Answer:

C. 2a

Step-by-step explanation:

edge, mark me brainliest

Answer:

b

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

Pa follow po na log out kasi ang isa kong brainly

Answer:

50 was the bill thanks so much for improving my knowledge

Answer:

f(x) = x + 3y = x + 3x = y - 3Inverse is h(x) = x - 3

Answer:

f^-1(x) = x - 3

Answer:

The Jar of peanut butter

Step-by-step explanation:

The easiest way to do this is to calculate price per ounce of each unit.

We'll assign the 12 ounce jar to the variable s and the bulk to the variable b.

First create an equation to find the values of each product per ounce.

Since the 12 ounce jar(s) sells for 3.96 we can say it is 3.96 for every 12 ounces, or s = 3.96/12oz.

Simplify this equation and you get s = 0.33 per ounce.

For b we need to convert pounds to ounces.

There are 16 ounces per pound so the equation we get is:

b = 5.50/16oz

Simplified we get:

b =  about 0.34/oz

The smaller jar has a rate of $0.33/oz

The bulk has a rate of $0.34/oz

This means the answer is b. The jar of peanut butter has a cheaper unit rate.

Answer:

jar of peanut butter

Step-by-step explanation:

Step-by-step explanation:

The area of a circle is given by :

A = πr²

r is the radius of the circle

(4) Diameter = 22 cm

Since, radius = diameter/2

r = 11 cm

Now, area of the circle,

[tex]A=\pi \times (11)^2\\\\A=380.13\ cm^2[/tex]

(5) Diameter = 30 cm

Since, radius = diameter/2

r = 15 cm

Now, area of the circle,

[tex]A=\pi \times (15)^2\\\\A=706.85\ cm^2[/tex]

(6) Diameter = 4cm

Since, radius = diameter/2

r = 2 cm

Now, area of the circle,

[tex]A=\pi \times (2)^2\\\\A=12.56\ cm^2[/tex]

So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.

Answer:

[tex] -2.5f + 0.3f - 16 - 9 = -2.2f - 25 [/tex]

Step-by-step explanation:

Given:

[tex] -2.5f + 0.3f - 16 - 9 [/tex]

Required:

Simplify

SOLUTION:

[tex] -2.5f + 0.3f - 16 - 9 [/tex]

Add like terms together

-2.5f and 0.3f are like terms. If you add them together you'd get -2.5f + 0.3f = -2.2f

-16 and -9 are like terms. Adding toghter, you'd get -16 +(-9) = -25

So we would have:

[tex] -2.2f - 25 [/tex]

Answer:

(-4, 3)

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Where the 2 lines intersect would be the solution set to the systems of equations.

Answer:

+18,000

Step-by-step explanation:

Answer:

population of a certain city is increased by 10,000 people. write

a signed number to represent this population change.

a car corporation produced 920 fewer cars this month than last. write a signed number to represent this months change in production

Step-by-step explanation:

Answer:

52.94

Step-by-step explanation:

Answer:  It's 52.9411765