Solve. 40 = -10x + 20

Answers

Answer 1
X=-2 hope this helped :)
Answer 2

Answer:

hi

Step-by-step explanation:

40= -10x+20

40-20= -10x

20= -10x

x=20/-10

x=-2

hope it helps

have a nice day


Related Questions

please answer this, thank you so much!! <3 :D​

Answers

Answer:  The correct answer is:  " 11 .1 " .

________

Step-by-step explanation:

Given:

" [tex]1.9h + 3.5 =[/tex] ? " ;  Solve:  when: " [tex]h = 4[/tex] " ;

________

To find the answer:

We plug in "4" for the value for " [tex]h[/tex] " ;

and performed the mathematical operations indicated.

________

 →   " [tex]1.9h + 3.5 =[/tex] [tex](1.9*4) + 3.5 = 7.6 +3.5 = 11.1[/tex] " .

________

The correct answer is:  " 11 .1 " .

________

Hope this is helpful to you!

 Best wishes!

________

Ian​'s car can go 231 miles on 7 gallons of gas. During a drive last​ weekend, Ian used 5 gallons of gas. How far did he ​drive? Use pencil and paper. Explain how the problem changes if you were given the distance Ian drove last weekend instead of how much gas he used.

Answers

Answer:

165 miles

Step-by-step explanation:

part 1

231/7= 33 mpg

33x5 = 165 miles

part 2

distance/mpg = gas used

for example: if you were told he went 200 miles,

200/33 = 6.06 gallons of gas

Given :

Ian's car can go 231 miles on 7 gallons of gas.

During a drive last weekend, lan used

5gallons of gas.

To find :-

How far did he drive?

Solution :-

According to Question ,

Car can go 231 mi on 7 gallons of gas.

Using Unitary Method ,

On 1 gallon of gas it will go 231/7mi

On 5 , it will go 231/7*5 = q65 miles

Hence the required answer is 165 miles

Solve these [7x+5](8x+3)
(3-8x)(4-5x)
2(4x+7)(6x-5)

Answers

Answer:

107520x6+89344x5−241808x4−55444x3+121478x2+6030x−12600

Step-by-step explanation:

brailiest

Answer:

nice

Step-by-step explanation:

Find the equation of the line that passes through (1,-2) and is parallel to y = 3x + 4.
Leave your answer in the form y = mx + c

Answers

Answer: y=3x-5

Step-by-step explanation: Find the slope of the original line. slope is m=3. Then use the point slope formula  [tex]y-y1=m(x-x1)[/tex] to find the line parallel to y=3x+4. Parallel lines have the same slope. so you substitute the given point (x1,y1)(1,-2) and slope m=3  into the point slope formula.

y-(-2)=3(x-1)  

y+2=3x-3  

y=3x-5

Help me please ?!?!?!?!?!

Answers

Answer:

option 3 left bottom corner

Step-by-step explanation:

Triangle ABC is shown. What value of x will prove that Triangle ABC is a right triangle?

Answers

In the given triangle ABC in the figure, the value obtained for x will be equal to 6.

What is a triangle?

The basic polygonal shape of a triangle has three sides & three interior angles. This is one of the fundamental shapes in geometry and is particularly associated. It has three connected vertices. Triangles can be divided into a variety of categories according to their sides and angles.

As per the given information in the question,

Use the equation of Pythagoras' theorem,

h² = p² + b²

(2x - 2)² = x² + (x - 2)²

4x² - 2(2x)(2) + 4 = x² + x² + 4 + 4x

4x² - 8x + 4 = 2x² + 4x + 4

4x² - 2x² - 8x - 4x + 4 - 4 = 0

2x² - 12x = 0

2x² - 12x = 0

2x(x - 6) = 0

So,

2x = 0

⇒ x = 0, it is not possible.

Or,

x - 6 = 0

x = 6

To know more about Triangle:

https://brainly.com/question/2773823

#SPJ5

The given question is incomplete, the complete question might be in the attachment.

what is the value of x 3/6x+9 =12

Answers

Answer:

x=6

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

8x + y = 20
x - 2y = -6

Answers

Answer: the answer is

Step-by-step explanation:

simplify (3a^4b^3)^3

Answers

Answer:

Step-by-step explanation:

(3a^4b^3)^3

=3^3a^4*3b^3*3

=27a^12b^9

Answer:

27(a^12)(b^9)

Step-by-step explanation:

Can be reorganized to (3^3)((a^4)^3)((b^3)^3)

27(a^12)(b^9)

5. I bought a $55 swimsuit, a $15 hat, and a $40 pair of shoes. I used a coupon that gave me 40% off my total bill. How much did | spend?

quickk pls​

Answers

Answer:66  dollars

Step-by-step explanation:110 - 44 = 66

 please help me quickly

no random links i will report :)

Answers

Answer:

B

Step-by-step explanation:

Kasey is buying lunch and dinner for her friends this weekend. A lunch combo cost $8.50 and a dinner combo cost $13, If Kasey has $160 to spend then write an inequality that describes the situation.​

Answers

Answer:

8.50x plus 13y equals 160

Which graph represents the solution set of the system of inequalities? ​

Answers

Answer:i think is A

Step-by-step explanation:

Use trig identities to show that sec θ − cos θ = tanθ (sin θ)

Answers

Use [tex]\sec\theta = \dfrac{1}{\cos{\theta}}[/tex]  to get

    [tex]\sec\theta -\cos{\theta}= \dfrac{1}{\cos{\theta}}-\cos(\theta})[/tex]

Then find a common denominator:

    [tex]\dfrac{1}{\cos{\theta}}-\cos(\theta}) = \dfrac{1}{\cos{\theta}}-\dfrac{\cos^2\theta}{\cos\theta}[/tex]

But now make that one fraction:

    [tex]\dfrac{1}{\cos{\theta}}-\dfrac{\cos^2\theta}{\cos\theta} = \dfrac{1 - \cos^2\theta}{\cos{\theta}}[/tex]

But that's just sin^2 on the top

    [tex]\dfrac{1 - \cos^2\theta}{\cos{\theta}} = \dfrac{sin^2\theta}{\cos{\theta}} = \dfrac{sin\theta\cdot sin\theta}{\cos{\theta}}[/tex]

Split that fraction up:

    [tex]=\dfrac{ sin\theta}{\cos{\theta}}\cdot sin\theta[/tex]

And tan = sin/cos

    [tex]=\tan\theta\cdot sin\theta[/tex]

PLEASE help!! BRAINLIEST to correct answer!!

Answers

The general equation for a circle is:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Where the center is (h,k) and the radius is r.

The equation we are given is:

[tex](x-2)^2+(y+3)^2=80[/tex]

From this, the center is (2,-3), and the radius is [tex]\sqrt{80}[/tex], or [tex]4\sqrt{5}[/tex].

Let me know if you have any questions, thanks!

How to solve 0.5(7d+4)=7-1.5d

Answers

The answer is (d=1.)
Brainlist please :)

Simplify this
0.5 (7d + 4) = 7.1 5d

Then

3.5d + 2 = 7- 1.5d

5d + 2 = 7

5 divided by 5

D = 1


so the answer is D = 1

Watching a Helicopter Take Off At a distance of 58 ft from the pad, a man observes a helicopter taking off from a heliport. If the helicopter lifts off vertically and is rising at a speed of 55 ft/sec when it is at an altitude of 113 ft, how fast is the distance between the helicopter and the man changing at that instant? (Round your answer to one decimal place.)

Answers

The Pythagora´s Theorem, tell us that in a right triangle, the square of the hypothenuse (L²) is equal to :

L² = x² + y²

x  and y are the legs.

The solution is

dy/dt = 48.9 ft/s

We know that in a right triangle:

L²  = x² + y²      (1)

If the helicopter lifts off vertically, that means x ( the horizontal distance between the observing man and the helicopter, maintains constant).

According to that, if we get derivatives with respect to time on both sides of equation (1) we get:

2×L× dL/dt   = 0 + 2×y×dy/dt       (2)

And

L = √ ( 58)² + ( 113)²   = √12769 + 3364    = 127.02 ft

L = 127.02 ft   when y = 113 ft

Now in equation (2) we know:

y = 113 ft    dy/dt = 55 ft/s   L = 127.02  we look for dL/dt

Then by substitution

2×127.02 × dL/dt = 2×113×55

254.04× dL/dt   =  12430

dL/dt  = 48.92

dL/dt = 48.9 ft/s

Related Link : https://brainly.com/question/14988219?

32 450 to nearest hundred

Answers

Answer:

32,500

Step-by-step explanation:

Hi to the nearest 100 it would be 32,500 as it is a 5 after the 4 you have to round up.

Hope this helps !

-2c-5c+8-4=53



I need answers to this asap I believe it’s -7

Answers

Answer:

Yeah!!!you're right, it's -7

Step-by-step explanation:

-2c -5c+8-4 = 53

-7c +4 = 53

-7c = 53 - 4

-7c = 49

c = -7

The answer is -7

Good job.

please help with this

Answers

Answer:

5x+y=5xy

Step-by-step explanation:

If f (x) = x^2 + 3, evaluate f (-4).
=
A) -5
B) 19
C
11
D) -13

Answers

Answer: B) 19

Step-by-step explanation:

To solve this problem, simply plug in -4 for x:

[tex]f(x)=x^{2} +3\\f(x)=(-4)^{2} +3\\f(x)=16+3\\f(x)=19[/tex]

Hope it helps :) and let me know if you want me to elaborate/explain further

Answer:

D. -13

Step-by-step explanation:

If you substitute -4 in for x you get -4^2+3, so when you simplify you get -16+3 which equals -13.

f(x)=x^2+3

f(-4)= -4^2+3

f(-4)= -16+3

f(-4)= -13

Quadratic shifted up by 4 units reflected

Answers

Answer:

-(x^2)+4

Step-by-step explanation:

Which graph represents a proportional relationship from y to x with a constant of proportionality of 1/2

Answers

Answer:

It´s going to be B

Step-by-step explanation:

QUICK: Please solve this for me plz

Answers

Answer: y: 5.5

Step-by-step explanation: combine 3/2 and x

y=3/2+ 4=5.5

Hi please help quick! what's -2 5/11 - 7 1/11

Answers

Answer:

Your answer will be -9.54545454545

Explanation:

I don't really understand what just happened to my calculator but i searched on goo gle but it's the correct answer..

Hope it helps you..Y-your welcome in advance..

(;ŏ﹏ŏ)(ㆁωㆁ)

-9 6/11 Since they are both negative you need to add them together. -2-7=-9
-5/11-1/11=-6/11
The answer is -9 6/11

Order these numbers from the least to the greatest. 7.618, 7.681, 7.6801, 7.0681

Answers

Answer:

7.0681, 7.618, 7.6801, 7.681

Step-by-step explanation:

from the least (smallest) to the greatest (largest)

7.0681, 7.618, 7.6801, 7.681

If I could get help thank u!

Answers

Y=2x+3 is the answer

(x^2 + 2x + 2)(x + 5) = 0

Answers

Answer:

[tex] {x}^{2} + 2x + 2 = 0 \: no \: solution \\x + 5 = 0 - \: \: \: \: \: x = - 5 \\ sox = - 5 [/tex]

I wrote an equation to show that two amounts were equal.

Answers

Answer:

what equation?

Step-by-step explanation:

Solve the linear equation below using the substitution method

x-3y=7
2x+3y=9​

Answers

(16/3, -5/9)

Hope this helps:))
-3y=7
-3y. 7
—— = ——
-3 -3
7
Y= - — —-
3

This is for Number one
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