Can someone please help me with this question? " For what value of x makes the equation 4x-3.5 (2x-8) = 40 true"

Answers

Answer 1

Answer:

-4

Step-by-step explanation:

4x-3.5(2x-8)=40

4x-7x+28=40

-3x=40-28

-3x=12

x= -4


Related Questions

Plzz help!!

Are the two triangles below similar?
(6 points)

1) No, because the corresponding sides are not proportional

2) Yes, because the corresponding sides are proportional

3) No, because there are not two pairs of congruent corresponding angles

4) Yes, because there are two pairs of congruent corresponding angles

Answers

Answer:

Step-by-step explanation:

Yes plzz give me brainliest

It is B your welcome !!!

There are 8 big fish for every
small fish.
There are 4 big fish for every
small fish.

Answers

So what’s the question-

Mara and alex are running laps around a track. Alex completes a lap every 45 secs and Mara every 36. If they starts at the same time, how long will it be until they cross the start line together? Plz its for homework that is due TOMORROW...

Answers

Answer:

180

Step-by-step explanation:

Keep multiplying 45 until you get a number divisible by 36. This is called the least common multiple.

Which one is bigger -4 or -3

Answers

Answer:

the answer is -3 because -3 is closer to 0 than -4

-3 is bigger it is closer to 0

Betsy participates in a scavenger hunt that requires her to retrieve items from 4 locations. The locations are on a map with the coordinates as given:

Location 1 is at (−4, −1).

Location 2 is at ​​(−4, 4).

Location 3 is at (3, 4).

Location 4 is at (3, −1).

The paths from one location to another are straight lines. One unit on the coordinate grid equals 10 yd. Betsy starts at location 1 and goes to location 2, then location 3, and then location 4, and then returns back to location 1.

What is the total distance Betsy has traveled?

Answers

Answer:

240 yd

Step-by-step explanation:

Let A, B, C, and D represent location 1, location 2, location 3, and location 4 respectively.

Consider the figure in the attached file.

We need to find the total distance traveled by Betsy.

The distance covered by Betsy is

length of segment AB length of segment BC length of segment CD length of segment DA.

To find the distance AB, we need to find the distance from A to B on y-axis.

So, length of segment AB units

To find the distance BC, we need to find the distance from B to C on x-axis.

So, length of segment BC units

To find the distance CD, we need to find the distance from C to D on y-axis.

So, length of segment CD units

To find the distance DA, we need to find the distance from D to A on x-axis.

So, length of segment DA units

Hence, the total distance covered is units

It is given that 1 unit equals 10 yd, so distance traveled by Besty is yd

identify the equation in the point-slope form the line parallel to y=3/4x-4 that passes through (-1,7)

Answers

y = 3/4x -4
The slope is 3/4 since it is written in the form y =mx+b where m is the slope
We want a line that is parallel so it will have the same slope
We know the slope of the new line (3/4) and a point (-1,7)
So we can use the point slope form of the equation
y-y1 = m(x-x1)
y-7 = 3/4(x--1)
y-7=3/4(x+1)

Yo can someone help me out

Answers

Answer:

The answer is 1/20

Step-by-step explanation:

Answer: 1/20 in fraction form. 0.05 in decimal form.

Step-by-step explanation:

1/5 ÷ 4 = 1/20 in fraction form. 1/5 ÷ 4 = 0.05 in decimal form.

solve the equation
-4(x - 26) = -200

Answers

Answer:

x=76

Step-by-step explanation:

-4(x - 26) = -200

x-26=50

x=50+26

x=76

I hope this helped you! If it did, please consider rating, pressing thanks, and giving my answer 'Brainliest.' Have a great day! :)

Step-by-step explanation:

-4x+104=-200

-4x=-200-104

-4x=-304

x=-304÷(-4)

×=76

Given the information in the diagram, which theorem
best justifies why lines e and f must be parallel?
оооо
alternate interior angles theorem
same side interior angles theorem
converse of the alternate interior angles theorem
O converse of the same side interior angles theorem

Answers

Answer:

the answer is D

Step-by-step explanation:

edu 2021

SOS MY CLASS JUST STARTED THIS AND I HAVE NO CLUE WHAT TO DO!!!!!!

Answers

1. y= 1,3,5,7,9

2. y= -1, -8, -5, -2, 1

5. y= -3, -2, -1, 1

method:- just substitute the value of X into the equation given in each question.

example:- if x=2 and given equation is y=2x + 3 find y. so y= 2(2)+3= 7

Answer:

REEEEEEEEEEEE

Step-by-step explanation:

Jennifer has already driven 160 miles on her trip to her grandparents' house. For every hour she travels, she drives an additional 55 miles. Which equation represents
the relationship between the total miles driven, y, and the number of hours, X.
Y=

Answers

Answer:

y=55x+160

Step-by-step explanation:

i might be wrong, but i think it would be y=55x+160

Answer:

y=55x+160

Step-by-step explanation:

she starts at 160 mi which is like your y-intercept so the "b" in y=mx+b. the slope or "m" would be 55 because thats how much she's travelling per 1 x or 1 hour

How many solutions does the equation 5x + 3x − 4 = 10 have?

a
Zero

b
One

c
Two

d
Infinitely many

Answers

Answer:

1.75

Step-by-step explanation:

5x + 3x - 4 = 10

Add Four To Both Sides To Begin Simplifying.

5x + 3x = 14

Now, Combine Like Terms.

8x = 14

Divide:

8x/8 = 1X = X

14/8

X = 14/8

14/8 = 1.75

X = 1.75

Check:

(5 * 1.75) + (3*1.75) - 4 = 10

8.75 + 5.25 - 4 = 10

14 - 4 = 10

10 = 10.                 This Is True, So X Does Equal 1.75

Answer:

The answer should be B; one answer

Step-by-step explanation:

After solving this equation, I came up with the answer 0.75, therefore there is only one answer.

what is the locus of the tip of a minute hand of a watch​

Answers

Answer:

The locus of the moving end of the minute hand of the clock will be a circle where radius will be the length of the minute hand

don leaves home 2pm. he drives 45 miles from home in the first hour

Answers

Answer:

if he leave at 2pm 45 miles in the first hr is the correct answer 3 pm

Step-by-step explanation:

Find the slope I’m sorry I need help with this one I’m finding the answer but don’t understand it sorry

Answers

the answer is 4 ....

Which ratio is proportional to 18/28 ?
Help me plzzzz i will give brainliest

Answers

Answer:

18/21 = 30/35

Step-by-step explanation:

so the problem says 18/21 so if that's the correct ratio to proportion to the answer would be. 30/35. the reason is that you can divide 18 and 21 by 3 to get 6/7 then if you multiply by 5 you get 30/35. Dividing and multiplying both the denominator and numerator keeps the ratio proportional.

If this function is differentials at x=1/2, what is a+b?

Answers

Answer: D) 28

===============================================

Work Shown:

Let

g(x) = ax^3 + 2

h(x) = bx^2 + 1

Plug x = 1/2 into each function

g(x) = ax^3 + 2

g(1/2) = a(1/2)^3 + 2

g(1/2) = (1/8)a + 2

and

h(x) = bx^2 + 1

h(1/2) = b(1/2)^2 + 1

h(1/2) = (1/4)b + 1

In order for f(x) to be differentiable at x = 1/2, the function f(x) must be continuous at x = 1/2. If we had a jump discontinuity here, then there is no way the function is differentiable here.

f(x) is continuous at x = 1/2 when g(1/2) = h(1/2).

This means,

g(1/2) = h(1/2)

(1/8)a + 2 = (1/4)b + 1

8*[(1/8)a + 2] = 8*[(1/4)b + 1]

a+16 = 2b+8

a = 2b+8-16

a = 2b-8

We'll keep this in mind for later.

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

Now let's compute the derivatives

g(x) = ax^3 + 2

g ' (x) = 3ax^2

h(x) = bx^2 + 1

h ' (x) = 2bx

Now plug in x = 1/2

g ' (x) = 3ax^2

g ' (1/2) = 3a(1/2)^2

g ' (1/2) = (3/4)a

and

h ' (x) = 2bx

h ' (1/2) = 2b(1/2)

h ' (1/2) = b

Equate the two items. We do so because we want f(x) to be differentiable at x = 1/2, so that means g ' (1/2) = h ' (1/2)

So,

g ' (1/2) = h ' (1/2)

(3/4)a = b

3a = 4b

a = (4b)/3

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

Earlier we found a = 2b-8.

Since both a = 2b-8 and a = (4b)/3, this means we can equate the right hand sides to solve for b

2b-8 = (4b)/3

3*(2b-8) = 3*(4b)/3

6b-24 = 4b

6b-4b = 24

2b = 24

b = 24/2

b = 12

Which leads to

a = 4b/3

a = 4*12/3

a = 48/3

a = 16

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

The piecewise function

[tex]f(x) = \begin{cases}ax^3+2, \ \ x < \frac{1}{2}\\bx^2+1, \ \ x \ge \frac{1}{2}\end{cases}[/tex]

will update to

[tex]f(x) = \begin{cases}16x^3+2, \ \ x < \frac{1}{2}\\12x^2+1, \ \ x \ge \frac{1}{2}\end{cases}[/tex]

To verify f(x) is differentiable at x = 1/2, you should check to see if both pieces evaluate to the same output when you plug in x = 1/2. In other words, you should check to see if g(1/2) = h(1/2).

Also, you should check to see if g ' (1/2) = h ' (1/2) so that f(x) is fully differentiable here. I'll let you do the check portions.

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

After getting our a and b values, we can finally say that

a+b = 16+12 = 28

find the LCM and HCF of 110 and 220 by prime factorization, what do u observe ​

Answers

Answer:

GCF=   2 x 5 x 11 = 110

LCM=   2 x 2 x 5 x 11 = 220

Step-by-step explanation:

For football tryouts at a local school, 16 coaches and 44 players split into groups. Each group will have the same numbers of coaches and players. How many players will be in each group?

Answers

Answer:

11 players

Step-by-step explanation:

In a football tryouts at a local school there are 16 coaches and 44 players

Therefore spilliting then into group with similar numbers can be illustrated as follows

= 16/4

= 4 coaches each

= 44/4

= 11 players each

Hence sharing them into groups will result in 4 coaches and 11 players for each group

In AWXY, the measure of ZY=90°, XW = 85, WY = 77, and YX = 36. What is the
value of the cosine of ZW to the nearest hundredth?

Answers

Answer:

0.91

Step-by-step explanation:

please helpppppp :((

Answers

Answer:

[tex]4^{21}[/tex]

Step-by-step explanation:

[tex]\frac{4^{12}}{4^{-9}}\\[/tex]

Given 4 = a

From the properties of exponents for the example...

[tex]\frac{a^4}{a^{-2}} = \frac{a*a*a*a}{\frac{1}{a^2} } = (a*a*a*a)*a^2 = a^4 * a^2 = a^{4+2} = a^6[/tex]

Therefore, the answer is....

[tex]4^{12}*4^{9} = 4^{12+9} = 4^{21}[/tex]

Please answer !!!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Since it is a right angle you would subtract 57 from 90 because both angles added together are 90°. 90-57= 33°

what are the slope and y-intercept of the line y=3x -4?​

Answers

Remember y = mx + b where m = the slope and b = the y-intercept.

Slope = 3

Y-intercept = -4
hello!

===========================================================

This equation is written in slope-intercept form, which looks like so:-

[tex]\bigstar{\boxed{y=mx+b}[/tex]

where

m is the slope

b is the y-intercept

Now, what is the slope?

Hint:- The slope is the coefficient of x, and the y-intercept is the constant.

That's right! The slope is 3, and the y-intercept is -4.

=========================================================

note:-

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

What is the slope of the line that passes through the points (5,-4) and (7,-4)? write your answer in simplest form

Answers

Answer:

0

Step-by-step explanation:

Because there are two negatives of the same number, we can instantly know that this would be 0.

Answer: 0

on this one it can’t be undefined so put 0 and you will get it correct

What is the mean of the following numbers? 24, 53, 63, 27, 87, 40

Answers

Answer:

49

Step-by-step explanation:

Add up all the numbers and divide by how many numbers there are.

Answer:

49

Step-by-step explanation:

the sum of all the numbers is 294

294÷6=49

Help me on this please

Answers

Answer:

i think your right

Step-by-step explanation:

Write the equation of the line passing through points (2,-2) and (1,0) in slope intercept form.

Answers

Answer:

y=-2x+2

Step-by-step explanation:

hope it helps!

Answer:

 y = -2x + 2

Step-by-step explanation:

find the slope then use the point slope formula to get to y = -2x + 2.

what is the percent of increase from 4000 to 7000?
(write the answer using a percent sign (%).

please help!!

Answers

Answer:

75%

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

7000 - 4000 = 3000

percentage of increase = 3000 / 4000

                                       = 0.75 x 100

                                       = 75%

check:

= 4000 x 1.75

= 7000  ok

7/2x + 1/2x = 2 1/2 + 9/2x
solve.

Answers

Answer:

x = -121

Step-by-step explanation:

(7/2)*x+(1/2)*x = (9/2)*x+121/2 // - (9/2)*x+121/2

(7/2)*x+(1/2)*x-((9/2)*x)-(121/2) = 0

(7/2)*x+(1/2)*x+(-9/2)*x-121/2 = 0

-1/2*x-121/2 = 0 // + 121/2

-1/2*x = 121/2 // : -1/2

x = 121/2/(-1/2)

x = -121

1,900 + 76x. Use the Distributive Property to factor the expression.

Answers

Answer:
The length of the rectangle is 76 feet and the width of the rectangle was 25 feet that is extended by x feet.
Step-by-step explanation:
The total area, in square feet, of a rectangular stage that has been widened by x feet, is represented by 1,900 + 76x.
Now, factorizing the expression for the area we get,
A = 1900 + 76x
⇒ A = 76(25 + x)
Therefore, from the above expression, we can assume that the length of the rectangle is 76 feet and the width of the rectangle was 25 feet that is extended by x feet. (Answer)
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