what is 2x-4+7x=54.5

Answers

Answer 1

Answer:

=6.5

Step-by-step explanation:

2−4+7=54.5

9−4=54.5

9−4+4=54.5+4

9=58.5

99=58.59

=6.5

hope i helped plz mark me brainlest


Related Questions

Complete the equations below. please only if you know

Answers

Answer:

153, 51, 5.1

Step-by-step explanation:

15.3÷3= 153 tenths÷315.3÷3=51 tenths15.3÷3=5.1

f(n)=x2+1
g(n)=2x-5
Find f(n)-g(n)

Answers

Answer:

x^2 - 2x + 6

Explanation:

(x^2 + 1) - (2x - 5)
x^2 + 1 - 2x + 5
x^2 - 2x + 6

The next four digits in the number 0.3435363738394041 are

Answers

The pattern is 0.01+

So the next 4 digits are:

0.4243

0.34353637383940414243

Rosa can send texts on
her phone at the rate
of 32 words per minute.
How long would it take
her to text 150 words?

Answers

Answer:

4.7 minutes

Step-by-step explanation:

150/32 is 4.68 which rounds to 4.7

Please helppppp me What’s the answer?

Answers

Answer:

She shaded above the line when she should have shaded below the line.

Step-by-step explanation:

hope this helps and is right. p.s. i really need brainliest :)

if this is wrong then I am incredibly sorry!

PART A: Write a system of linear equations to model this situation where x represents the pizza and y represents the bags of wings. Use the system to answer the following questions.

Answers

Answer:

x -3

Step-by-step explanation:

pls help me pls (this needs to be 20 characters so ignore this part)

Answers

Step-by-step explanation:

...............................

A submarine descends 45 meters on its first dive. It then descends another 40 meters. What integer represents the total descent in meters for the two dives?

Answers

Answer:

85 meters in total

Step-by-step explanation:

The submarine first descended 45 meters and then 40 meters

45+40=85

Who was in paris??????

Answers

Answer:

spongebob

Step-by-step explanation:

Answer:

i was in paris 3 years ago : )

Which of the following is equivalent to the expression x + 3x + 5x for all values of x?
8x
9x3
9x
8x3

Answers

Answer:

9x

Step-by-step explanation:

x + 3x + 5x = 4x + 5x = 9x

Please help me answer

Answers

Answer:

C

explanation:

x = 4/3πr³

cross multiply

3x = 4πr³

cube root both side

³√3x = ³√4πr³

³√3x = ³√4π x r

divide both side by ³√4π

r = ³√3x/4π

Hi I need help please.
If a rectangular model of a building with dimensions of 5x3x10 represents an actual building with a scale factor of 12, what are the dimensions of the actual building?

Answers

Answer:

60x36x120

Step-by-step explanation:

Because the scale factor is 1:12, you multiply the dimension of the building by 12.

The area of a rectangle is 42 m2, and the length is
8 m less than two times the width. Find the
dimensions of the rectangle.

Answers

Answer:

length = 14 m

width = 7 m

Step-by-step explanation:

l = length

w = width

l = 2w - 8

w(2w - 8) = 42

2w² - 8w - 42 = 0

you can factor out a 2 to work with smaller numbers:

w² - 4w - 21 = 0

(w - 7)(w + 3) = 0

w = 7

'w' cannot equal a negative so we discount it as an answer

find length:

l = 2(7) - 8

l = 14 - 8 or 6m

Find the missing length of the triangle
20 cm
12 cm

Answers

The shape on the left is a square with side length of 12 cm

This means the height of the triangle is 12cm.

Knowing the height and the hypotenuse using the Pythagorean you can solve for the base.

20^2 = 12^2 + x^2

400 = 144 + x^2

Subtract 144 from both sides:

256 = x^2

Take the square root of both sides

X = sqrt(256)

X = 16

X = 16

A team of students is designing a new game to help their class review for a science test. They will make a rolling cube
with a side length of 7 cm as part of the game.
7 cm
How much material will they need to make the rollina cube?

Answers

Answer: volume of the cube is (7 cm)^3= 343 cm^3

Can someone please tell me how to find the surface area of shapes please I'm literally crying I have a quiz due in 10 minutes and I'm gonna fail please help

Answers

Answer:

No Problem

Step-by-step explanation:

Answer:

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

Surface area means, basically the outside of the shape, faces is a fancy way schools use to say sides, for example a cuboid, these look like rectangles but 3D, It has 6 "faces" or sides. And it also has 12 edges. With my school, they usually fill the 3D shapes with cubes to have a way to estimate the size, or they might write it on the sides like 2D shapes. Prisim means a 3D shape that has 2 faces that are the exact same, like a 2D rectangle. Which is a look-alike to the cuboid. SA=2lw+2lh+2hw might look , difficult but it means SA=surface answer, 2LW means length with, 2LH means length hight, and 2HW means hight width.

Two dice are rolled one after another. Construct a sample space and determine the probability that the sum of the dots on the dice total a number greater than 9 if the second die is a 5. The probability that the sum of the dots on the dice is a number greater than 9 if the second die is a 5 is nothing.
​(Type an integer or a simplified​ fraction.)

Answers

this answer will be 55% ok

Find the measure of angle B

Answers

Answer:

64°

Step-by-step explanation:

Angles in a straight line add up to 180° so 180° - 116° = 64°

Cole has a can of marbles. NEED HELP It would mean so much to me.

Answers

Answer:

C

plz can i get brainliest

Jailyn has ½ of a pizza left over. She wants to share the pizza with 3 of her friends. What fraction of the original pizza will Jailyn and her 3 friends each receive?

Answers

Answer:

Jailyn and her 3 friends will each receive 1/8 of the original pizza.

Step-by-step explanation:

Given that Jailyn has ½ of a pizza left over and she is sharing that with 3 friends, it means that the left over will be divided in 4 pieces and you have to divide 1/2 by 4 to find the fraction of the original pizza that Jailyn and her 3 friends will each receive:

[tex]\frac{1}{2}[/tex]÷4= [tex]\frac{1}{2}[/tex]÷[tex]\frac{4}{1}[/tex] = [tex]\frac{1*1}{2*4}[/tex] = [tex]\frac{1}{8}[/tex]

According to this, the answer is that Jailyn and her 3 friends will each receive 1/8 of the original pizza.

You started hiking at 31.3 feet below sea level. At the end of your hike, you were at 56.2 feet above sea level. How many feet did you climb?

Answers

Answer:

24.9

Step-by-step explanation:

56.2-31.3=24.9

What is the slope of y= -7/5x +4

Answers

Y= -7/5x + 4

To find -intercept/zero, substitute

Multiply both sides of the equation by

0= -7/5x +4

Move the variable to the left-hand side and change its sign

0= -7x +20

Divide both sides of the equation by

7x=20
20/7 = 2 6/7 = x 2.857

Answer: I hope this helps!

brainliest or a thank you pls :)) <33

x - 3y = 6
2x + 4y = 2
if (x,y) is a solution to the system of equations above, what is the value of x-y?
A) 4
B) -4
C) 2
D) -2

Answers

It’s it B) -4
Shdbe

A rectangular prism has a width of 8inches a length of 15inches and a height of 6inches what is the volume ofprism

Answers

Answer: 720 inches

Step-by-step explanation:

To find volume of a rectangular prism, we need to multiply L x W x H , so we would do-

15 x 8 x 6 and get 720in

Answer: Fre.e points :^

Step-by-step explanation: Ty *bows* u-u


Find the value of d, the length of the diagonal across the square. If
necessary, round your answer to 2 decimal places.



20 points pls help!

Answers

Answer:

28.28

Step-by-step explanation:

The diagonal of a square is [tex]\sqrt{2}[/tex] times the length of a side of the square.

So the diagonal of your square is 20[tex]\sqrt{2}[/tex] = 28.28

Match each equation to its solution​

Answers

Answer:

1st answer: -8

2nd answer: -5.2

3rd answer: 28.8

4th answer: 4

Answer:

x/2=-4_______ -8

-5x=26_______ -5.2

x/-7.2=-4________28.8

3  

__  =6________4

2  x

Step-by-step explanation:

A shirt priced at x dollars is discounted before tax is added. The final
price in dollars is described by the expression below.
1.05(x-0.6x)
What is the sales tax for the shirt?

Answers

Answer:

not sure if that is right

The sales tax for the shirt is 0.05(0.4x).

What is the sales tax?

Calculating the sales tax applied to a purchase is a matter of simply multiplying the tax rate by the purchase price using the equation sales tax = purchase price × sales tax rate. Adding the sales tax to the original purchase price gives the total price paid with tax.

Given that, a shirt priced at x dollars is discounted before tax is added.

In the final price, (x-0.6x) represents the discount of 60% on the shirt.

After that sales tax was applied which was 1.05 ≈ 105%. So, the sales tax is 5%

Then the sales tax is

5% × (x - 0.6x)

5% × (0.4x)

0.05(0.4x)

Therefore, the sales tax for the shirt is 0.05(0.4x).

To learn more about the sales tax visit:

brainly.com/question/27092799.

#SPJ2

A state university has an annual tuition of $12,000. Bradley would like to attend this university and will save money each month for the next 4 years. His grandparents will give him $2,800 for his first year of tuition. Which plan shows the minimum amount of money Bradley must save to have enough money to pay for his first year of tuition?

Answers

Answer:

$767 per month for the next 4 years

Step-by-step explanation

first it’s minus the 2800 they gave him and that’s 9,200 then divided by the amount of months in a year which is 12 you end up with 766.6 but rounded that would be the closest answer and then when you multiply 767x12 it’s 9200 plus the 2800 it’s 12,000 which means it checks out.

If 44% of the students in a certain collage are female and there are 2640 female students what is the total number of students in the total students

Answers

Answer:Total number of students=6000 students

Step-by-step explanation:

Number  of female students =2640

Percentage of female students=44%

But

Percentage of female students x Total number of students =Number  of female students

Therefore

Total number of students=Number  of female students / Percentage of female students

Total number of students=2640/44% =6000 students

Jackie wants to save at least $16 a week from her paycheck. Which inequality can be used to solve how many weeks until she has saved $200?

Answers

Answer:

n ≥ 12.5 weeks

Step-by-step explanation:

Weekly savings = at least $16

n = number of weeks

At least in inequality means ≥

16n ≥ 200

n ≥ 200/16

n ≥ 12.5 weeks

12.5 weeks until she has saved $200

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