Help me with this math problem

Help Me With This Math Problem

Answers

Answer 1

Answer:

The mistake he made was not distributing the 1/4 to all the terms in the parentheses. It should've instead become 1/4x + 3, which would then lead to a different answer

Answer 2

Answer:

He forgot to divide 12 by 4.

Step-by-step explanation:

1/4(x + 12) = 2

1/4(x) + 1/4(12) = 2

x/4 + 12/4 = 2

x/4 + 3 = 2

x/4 = -1

x = -1/4


Related Questions

a) solve x + x + x = 54
b) solve y/5 = 7
c) solve 4t+6=24​

Answers

Answer:

a) x = 18

b) y = 35

c) t = 4.5

Step-by-step explanation:

a) x + x + x = 54

3x = 54

x = 54 ÷ 3

x = 18

b) y/5 = 7

(y/5) × 5 = 7 × 5

y = 35

c) 4t + 6 = 24

4t +6 - 6 = 24 -6

4t = 18

4t ÷ 4 = 18 ÷ 4

t = 4.5

Answer:

a) 18

b) 35

c) -4.5

Step-by-step explanation:

a) x + x + x = 54

combine like terms.

3x = 54

Divide both sides by 3.

x = 18

b) y / 5 = 7

Multiply both sides by 5.

y = 5 × 7

y = 35

c) 4t + 6 = 24

Take 6 to right side.

4t = 24 - 6

4t =  -18

Divide both sides by 4.

t =  -4.5

factorise x^2 - 9???????

Answers

Answer:

Step-by-step explanation:

(−3)(+3) here is the answer short and simple (:

hope this helps

if I'm wrong i am so sorry

Answer: (x+3) (x-3)  im pretty sure!

14. Write the equation of a horizontal line that passes through the point (-2, 2).
y=2
x=-2
x=2
y=-2

Answers

Answer:

y=2

Step-by-step explanation:

horizontal lines are y= the y intercept

if you want the line to go through the point (-2,2) it would be y=2 because points are written as (x,y)

the line y=2 would cross through the y access at 2 and also cross through every other point that is (x,2)

find the value of x in each of the given triangles.​

Answers

Answer:

12

Step-by-step explanation:

5x + 7x + 3x = 180°

15x = 180°

x = 180°÷15

x = 12

A car moving at a constant speed passed a timing device at t=0. After 7 ​seconds, the car has traveled 567 ft. Write a linear function rule to model the distance in feet d the car has traveled any number of seconds t after passing the timing device.

Answers

Answer:

The required equation is:

d = 81tf(t) = 81t

Step-by-step explanation:

We know that

distance = rate × t

Given that a car moving at a constant speed passed a timing device at t=0.

In other words, at t = 0 second, d = 0 ft.

After 7 ​seconds, the car has traveled 567 ft.

In other words, at t = 7 seconds, d = 567 ft

Thus, there are two points

(0, 0)

(7, 567)

Finding the slope between (0, 0) and (7, 567)

Using the formula

Slope = Rate of change = [y₂-y₁] / [x₂-x₁]

                                        = [567 - 0] / [7-0]

                                        = 567 / 7

                                        = 81 ft/second

Given that the car is moving at constant speed. So, we dont't have any other factor or term to consider

Thus, the required equation is:

distance = rate × t

d = 81 × t

d = 81t

or

f(t) = 81t

VERIFICATION

Given the equation

d = 81 × t

Put t = 0 to find the disatance in 1 sec

d = 81 × (0) = 0 ft

Put t = 7 to find the distance in 7 seconds

d = 81 × (7) = 567 ft

what is the approximate distance between points A and B. giving brainlyest.

Answers

Answer:

7.62

Step-by-step explanation:

We can use the distance formula

d = sqrt(  (x2-x1)^2 + ( y2- y1) ^2 )

  d = sqrt(  (1 - -2)^2 + ( 4 - -3) ^2 )

  d = sqrt(  (1 +2)^2 + ( 4 +3) ^2 )

d = sqrt(  (3)^2 + ( 7) ^2 )

d = sqrt( 9+49)

d = sqrt( 58)

7.615773106 or approximately 7.62

Answer:

7.62

Step-by-step explanation:

Ultimately, you want to create the two imaginary lines to form a triangle and to find the hypotenuse which is the distance between point A and point B.  From point B to the center of point A but not at it is 7 units and from there to point A, it is 3 units.  7^2 and 3^2 make up 49 and 9 which equals to 58.  Finally, square root that number and you will get 7.62 as your distance.

What is b x (5x 10) x to y

Answers

b^5 x b^10 = b^5+10

b^15

b^15 to y

your given two side lengths of 6 centimeters and 9 centimeters. Which measurment can you use for the length of the third side to construct a valid triangle? (select all the correct answers)

1. 3 centimeters
2. 10 centimeters
3. 12 centimeters
4. 14 centimeters
5. 18 centimeters

Answers

Answer:

it would be 18

Step-by-step explanation:

Because both 6,9 are factors of 18 and 3 cant do it because its under 6,9 and 12 is a multiple 6 but not 9.

1. Select the equations where y = 3 is the
solution. Circle all that apply.
A. y - 2=5
B. x = 0
c. = 1.5
D. y + 5 = 8
E. 15 - y = 12
F. 5y = 18


Pleaseee help

Answers

D and e is the answer
The only ones I know are that D is one because y=3 so 3+5=8 and E because 15-3=12

Can you please help me

Answers

250 * 5= 1250 i think

15(3x - 4y)
Use Distributive property

Answers

45x -4y is the answer

Answer:

45x - 60y

Step-by-step explanation:

15 × 3x = 45x

15 × 4y = 60y

put them together

45x - 60y

Step 1:draw a triangle
Step 2:label the triangle using the given information .
Step 3: create and solve an equation to find the missing or angle.


At a point 30 feet from the base of a tree, the angle formed with the ground looking to
the top measures 53. Find, to the nearest foot, the height of the tree.

Can someone help me?

Answers

Answer:

40 feet to the nearest foot.

Step-by-step explanation:

The tree , the distance from the base of the tree on the ground (30 ft) and the distance from this point to the top of the tree form a right triangle.

So if the height of the tree is h:

tan 53 = h / 30

h = 30 tan53

h = 39.81 feet.

Need help with these 2 questions pls help me will mark brainiest

Answers

Answer: Which questions?

Answer:

The two questions are not available for the question.

Step-by-step explanation:

Need help please show work I’m confused

Answers

Answer:

4 2 8 89 8

Step-by-step explanation:

An exercise machine with an original selling price of 1,275 is marked down by 20% . What is the sale price of the exercise​ machine?

Answers

Answer:

1020

Step-by-step explanation:

Solve for x, 3-5x=18

Answers

Answer:

X = 3

Step-by-step explanation:

18 - 3 = 15

5x = 15

divide both sides by 5

X = 3

Answer:

[tex]3 - 5x = 18 \\ - 5x = 18 - 3 \\ - 5x = 15 \\ x = \frac{15}{ - 5} \\ \boxed{x = - 3}✓[/tex]

x=-3 is the right answer.

2(13+x) less than or equal to 16

Answers

Answer:

Step-by-step explanation:

here you go mate

step 1

2(13+x)≤ 16

step 2

2(13+x)≤ 16  simplify

2x≤-10

step 3

[tex]\frac{2x}{2}\leq \frac{-10}{2}[/tex]  Divide both sides by (2)

answer

x≤-5

mind if i get brainliest?

x + 6 = −x − 6
(so i can ask)kjhgfdccfghjk

Answers

Answer:

x = -6

Step-by-step explanation:

Equations

Solve the equation:

x + 6 = -x - 6

We must find the value of x that makes the identity above true.

Let's join all the variables on the left side and the numbers on the right side.

Adding x:

x + 6 + x = -x - 6 + x

The variables cancel out on the right side:

2x + 6 = -6

Subtracting 6:

2x + 6 - 6 = -6 -6

The 6 and -6 are canceled out:

2x = -12

Dividing by 2:

x = -12/2

x = -6

Ryan cut away 7.85 meters of rope. Before that, he had 13 meters of rope. How much rope does Ryan have left?

Answers

Answer:

5.15

Step-by-step explanation:

13 - 7.85 = 5.15 ( I may be wrong lol )

Answer:

sawarasenaikimiwa⛓shoujonano?✨böKùWâÿARiçHiñBįCChīńOoSûDàYO

-by-step explanation:

Point A is located in which quadrant?
5
3
6
8
Quadrant
Quadrant II
Quadrant III
O Quadrant IV

Answers

Answer:

Step-by-step explanation:

Quadrante 5

Quadrant II and the coordinates should be -5, 5

what are the domain and range?

Answers

Answer

Domain= {-6, -4, 3, 6}

Range= {2, 4, 6}

pls help due soon !!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: ( B ) 10
Explanation: I hope this helps you with your stuff

Between what two consecutive integers does log ₂ 75 lie?

Answers

Answer: The two consecutive numbers are 6 and 7.

Step-by-step explanation:

Here the problem is that the logarithm is not the natural logarithm we usually use, to return to the natural logarithm, we can use the next property:

Logₐ(x) = Ln(x)/Ln(a)

Then:

Log₂(75) = Ln(75)/Ln(2)

Now we can do these calculations.

Ln(75)/Ln(2) = 4.317/0.693 = 6.229

Now we want to find two consecutive integers, n and m, such that:

n < 6.229 < m

Because they are consecutive numbers, we must have:

m = n + 1

then:

n < 6.229 < n + 1

The only possibility here is:

n = 6

n + 1 = 7

The two consecutive numbers are 6 and 7.

plz helpppppppppppppppppppppppppppppppppppp i will give brainliest

Answers

Answer:

You cannot see the question?

Step-by-step explanation:

Joe's Car Shop received a shipment of 40 cars. The cars each weighed the same amount. The total shipment weighed 55 tons. What
was the weight of each car in tons?

If anyone knows the answer please say the answer I need it by today.

Answers

Answer: Each car would be 1.25

Step-by-step explanation: I found this answer by dividing 50 by 44 since the thing all together weighed 5 and there were 44 cars and to check my thing i did 1.25 times 44 and i got 50 and if you add 1.25 44 timed you get 50!

PLEASE SOMEONE HELP A LOT OF POINTS!!

Answers

Answer:

-5 or -3

Step-by-step explanation:

correct me if im wrong

PLEASE GIVE ME BRAINLEST I WORK HARD

Answer:

-3

Plzzzzz give me Brainliest!!!!!

Please help!!!
You're shopping for a guitar and find one
with an original price of $160. The store is
offering a 30% discount on all guitars. Wait!
There is an additional 25% off all purchases.
What is the sale price of the guitar?

Answers

$84

$160 * 0.30 = $48

$160 - $48 = $112

$112. * 0.25 = $28

$112 - $28 = $84

Use what you know.
Guitar cost =$160 w/ 30% off
30% = 30/100 = 0.30.

30% off means 30% of the price $160 will be taken off so that is why I multiplied 160 by 0.30 (30/100).

30% of 160 is 48 so I subtracted 48 from 160 which equals $112.

With an extra 25% off I repeated the same steps above.

25/100 = 0.25

$112 * 0.25= $28
$112 - $28 = $84

If you need me to break it down more just let me know. I HOPE THIS HELPS

what is the y-intercept of the function f(x)=-2/9x + 1/3 ?​

Answers

Answer:

Approximately 0.333

Step-by-step explanation:

If we graph this we see that the line goes over the y-axis at (0,0.333)

*I use desmos graphing calculator*

Answer:

1/3 is the y-intercept of the function f(x)=-2/9x + 1/3.

Step-by-step explanation:

[tex]f(x) = mx + c \\ f(x) = - \frac{2}{9} x + \frac{1}{3}\\where,\:c\: is\: the\: intercept. [/tex]

a cube is dilated by a scale factor of 3/4 to create a new cube. what is the surface area of the new cube.

Answers

Answer:

9/16

Step-by-step explanation:

i took the test ;)

The surface area of the new cube is (27/8) times the surface area of the original cube

What is the surface area of cube?

The formula for surface area of a cube is equal to six times of square of length of the sides of cube. It is represented by 6a2, where a is the side length of cube.It is basically the total surface area.

Surface area S = 6a² ,

where a is the side of the cube

Given data ,

Let the original cube have side length 's'.

The surface area of the original cube is given by 6s^2, since a cube has 6 equal square faces.

When the cube is dilated by a scale factor of 3/4, each side length of the new cube is 3/4 times the length of the corresponding side of the original cube. Therefore, the side length of the new cube is:

s' = (3/4) s

The surface area of the new cube is also given by 6 times the area of one of its faces, which is:

(3/4)s x (3/4)s = (9/16)s²

Therefore, the surface area of the new cube is 6 times (9/16)s^2, or:

6 x (9/16)s² = (27/8)s²

Hence , the surface area of the new cube is (27/8) times the surface area of the original cube

To learn more about surface area of cube click :

https://brainly.com/question/12079637

#SPJ3

I will mark brainliest if you explain the answer

Answers

Answer:

it is -2/3 because you move the point to the left twice and down three times.

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