0.7 (3s + 4)-1.1s = 7.9

Answers

Answer 1

Answer:

s = 5.1

Step-by-step explanation:

[tex]0.7 (3s + 4)-1.1s = 7.9\\[/tex]

Multiply both sides of the equation by 10

[tex]0.7\left(3s+4\right)\cdot \:10-1.1s\cdot \:10=7.9\cdot \:10\\\\= 7\left(3s+4\right)-11s=79\\[/tex]

Expand

[tex]\mathrm{Expand\:}7\left(3s+4\right)-11s:\\\quad 10s+28[/tex]

Subtract 28 from both sides

[tex]10s+28-28=79-28[/tex]

Simplify

[tex]10s=51[/tex]

Divide both sides of the equation by 10

[tex]\frac{10s}{10}=\frac{51}{10}[/tex]

Simplify

[tex]s=\frac{51}{10}\\\\Decimal = 5.1[/tex]

Answer 2
First multiply 0.7 by (3s+4) to get 2.1s + 2.8 and then add the 1.1s to the 2.1s and that should leave you with 1s+2.8 now you should have 1s + 2.8 = 7.9, you want to take 2.8 from both sides to bring it over to the 7.9 to make it look like 1s = 7.9 - 2.8 so now go ahead and have the 7.9 and the 2.8 subtract so you should end up with 1s = 5.1 so now you want to divide both sides by 1 and the 1s would cancel out into s and the 5.1 stays the same so now you have s = 5.1, you can always check this answer by seeing that it works so here is how you do that. Plug in your number, so you have
0.7 (3 * 5.1+4) - 1.1 * 5.1 = 7.9
here is your verification, 0.7 multiplied by all the numbers in the parentheses (3 * 5.1+4) would get you with 10.71 + 28 and you have - 1.1 * 5.1 = 7.9 so now just add the 10.71 to the 2.8 to get 13.51 and multiply the 1.1 by the 5.1 to get 5.61 and subtract the two to get 7.9 and that’s 7.9 = 7.9 so I hope this was helpful!! ^_^

Related Questions

Find the measures of the angles of a triangle if the measure of one angle is three times the measure of a second angle and the third angle measures 3 times the second angle decreased by 30.

Answers

Answer:

90°,30°,60°

Step-by-step explanation:

hope it helps


Changes to the cities and the environment:

1) List some ways in which the Tokugawa Shogunate strengthened Japan's economy.


2) How did rice production change?


3) Why were more roads required around Edo as the city grew?


4) Why was timber such an important resource in medieval Japan?


5) Describe the environmental policies introduced to protect forests and change the way timber was harvested.


6) Write a paragraph to explain, in broad terms, the impact that the Tokugawa shogunate had on Japan.​

Answers

Answer:

Sorry i don't really know all of the question but I hope the ones I know help.

Step-by-step explanation:

The second questions answers is:

The most significant change in rice production technologies started from 2000 to 2013 and it was the introduction and adoption of new rice seed varieties. Southern rice producers increased it by planting Hybrid and non-genetically modified herbicide.

The third questions answer;

more roads were required cause Edo grew into a huge city with a lot of buildings and they needed road.

The fourth question answer; timber was important cause it was used to supply construction needed for the growing of population in the peaceful time. some places like the Shogun Leyasu and many of the Daimyo started building huge castles and templates to show their power to each other.

Find the area 10yd, 4yd, 10yd, 13yd and 8yd​

Answers

Answer:

41,600yd's is the area....

Question 6 (9 points)
Which of the following is the simplified expression of -6y² + 4 + 4x – y + 2x – 2 – 3 ?

Answers

Answer:

-6y² -1 + 6x - y

Step-by-step explanation:

-6y² + 4 + 4x – y + 2x – 2 – 3 ?

-6y²- 1 + 4x - y + 2x

-6y² -1 + 6x - y

Simplify the expression: y9 * y-2

Answers

Answer:

[tex]y^7[/tex]

Step-by-step explanation:

If we want to simplify the expression [tex]y^9 \cdot y^{-2}[/tex], we have to note that exponent rules state that [tex]x^a \cdot x^b = x^{a+b}[/tex].

This means that if we add the exponents, that will be what we raise y to the power of.

[tex]9 + -2 = 9-2 = 7[/tex]

So [tex]y^7[/tex].

Hope this helped!

solve a/3 + 4 = 6
a=

Answers

Answer:

a = 6

Step-by-step explanation:

Given

[tex]\frac{a}{3}[/tex] + 4 = 6 ( subtract 4 from both sides )

[tex]\frac{a}{3}[/tex] = 2 ( multiply both sides by 3 to clear the fraction )

a = 6

Answer:

a=6

Step-by-step explanation:

a/3=6-4

a/3=2

a=6

hi I need help with this packet because my teacher explains it very hardly for me ​

Answers

Answer:

(-1,4) (-8,2) (-6,10)

Step-by-step explanation:

All you had to do is reflect it and figure out the new coordinates. There is you answer.... you welcome

I need help with my homework

Answers

Answer:

the length is 6cm and the height is 9cm

Step-by-step explanation:

because 9x6=54

The length is 6cm the length is 6cm and the height is 9cm

Are the following two expressions the same? [tex]-(4t^2 -16t - 20)[/tex] AND [tex]4t^2 - 16t - 20[/tex]

Answers

Answer:

No

Step-by-step explanation:

Use - to open the bracket

[tex] - (4t^2 -16t - 20) = \\ - 4 {t}^{2} + 16t + 20[/tex]

Compare the two

: They are not the same

[tex]4t^2 - 16t - 20[/tex]

Note :

[tex] - \times - = + \\ + \times - = - \\ + \times + = + \\ - \times + = - [/tex]

Is 4:18 and 2:12 equivalent

Answers

Number two is correct , 5x3 is 15 and 20x3 is 60 so the answer would be they ARE NOT equivalent to eachother

Evaluate $$ 7 5​​×10.

Answers

Answer:

I think it is $750

Step-by-step explanation:

Simply multiply $75 ×10

Solve the equation 8x
- 5 = 7.​

Answers

X = 12 / 8 = 1.5
Mark as branliest

Answer:

[tex]8x - 5 = 7[/tex]

[tex]8x = 7 + 5[/tex]

[tex]8x = 12[/tex]

[tex]x = \frac{12}{8} [/tex]

[tex]x = \frac{3}{2 } \: or \: 1.5[/tex]

The closest perfect square less than 2592

Answers

The closest perfect square would be 50^2=2500

Which expressions are equivalent to 4(4a + 5) ? 3 answers ​

Answers

Answer:

16a+20

Step-by-step explanation:

4(4a+5) -----Distributive property

16a+20

Hope this helps ;) ❤❤❤

Your school's drama club charges $10 per person for admission to a play. The club borrowed $400 to pay for costumes and props. After paying back the loan, the club has a profit of $100. Write an equation. Let x represent the number of people who attended the play.

Answers

Answer:

10x + 400 - y = 100

Step-by-step explanation:

Answer:

50 people came to the play

Step-by-step explanation:

Let x be the amount of people that attended the play

10x=400+100

10x=500

divide by 10 on both sides

50 people came to the play

400+100=500

40 people is $400 for the props

10 people makes $100

Hope this helps :-)

Write the equation of the line, with the given properties, in slope intercept form slope = -2, through(-4,7)

Answers

Answer:

y= -2x + 7

Step-by-step explanation:

So in slope intercept y will always equal something so you start with

y= mx + b

m = slope and b = y-intercept

so in this case it would first be

y = -2x + b

and then since we have the point it passes through (-4,7) we know that the line passes through the y axis at 7 hence the y value is 7.

so you finally get

y=-2x+7

The equation of line passes through the point (-4, 7) will be;

⇒ y = - 2x - 1

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The point on the line are (-4, 7).

And, The slope of the line is,

⇒ m = - 2

Now,

Since, The equation of line passes through the point (- 4, 7).

And, Slope of the line is,

m = - 2

Thus, The equation of line with slope - 2 is,

⇒ y - 7 = - 2 (x - (-4))

⇒ y - 7 = - 2 (x + 4)

⇒ y - 7 = - 2x - 8

⇒ y = - 2x - 8 + 7

⇒ y = - 2x - 1

Therefore, The equation of line passes through the point (-4, 7) will be;

⇒ y = - 2x - 1

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ2

If f(x) = 2x – 1and g(x) = x², Find fºg

Answers

Answer: the answer is

Step-by-step explanation:

put g of x in f of x

(2x)^2 - 1

=4x^2 - 1

Which of the following is a whole number?
9
JT
5.111...
2
8
Submit

Answers

Answer:

9,2,8

Step-by-step explanation:

A whole number is a number with no fractions or Integers.

A bus travels the 100 miles between A and B at 50 mi/h and then another 100 miles between B and C at 70 mi/h. The average speed of the bus for the entire 200-mile trip is:

Answers

Answer:

Average speed= 58.3 mi/hour

Step-by-step explanation:

The average speed is defined as the total distance traveled divided by the total time taken.

from A to B

distance= 100 miles

speed= 50 mi/h

speed= distance/time

time= distance/speed

time= 100/50

time= 2 hours

from B to C

distance= 100 miles

speed= 70 mi/h

speed= distance/time

time= distance/speed

time= 100/70

time= 10/7 hours

Average speed= total distance/total time

total distance= 200 mile

total time= 2+10/7= (14+10)/7= 24/7

Average speed= 200/24/7

Average speed= 200*7/24

Average speed= 1400/24

Average speed= 58.3 mi/hour

What is the answer to this

-5 + 7

Answers

2.


-5+7 is basically 7-5. So since they are equivalent equations they will equal the same thing. 2.

how do i get points?

Answers

Answer:

answer questions :)

Step-by-step explanation:

Answer:

sorry i just need points

Step-by-step explanation:

What is the length of NO?
N= (7,-4)
O=(-7,-4)

Answers

Answer:

I believe it would be 14.

Step-by-step explanation:

The distance between 7 and -7 should be 14.

The length of NO is 14 units

What is the length of NO?

Distance between two points is the length of the line segment that connects the two points in a plane.

The formula to find the length is given by:

d =√((x2 – x1)² + (y2 – y1)²)

We:

N= (7,-4) : x1 = 7 , y1 = -4

O = (-7,-4): x2 = -7 , y2 = -4

Using the formula with the given values:

d=√((-7 – 7)² + (-4 – (-4))²)

d=√((-14 )² + (0)²)

d=√196

d= 14

Therefore, the length of NO is 14 units

Learn more about the distance between two points on:

brainly.com/question/17704491

#SPJ6

3.Which linear equations also represents a direct variation? (select all that apply)
y = 2/3x
y = -2x – 4
y = 5x
y = 3x + 2

Answers

The answer is all of them
All of them hopefully this helped

what number set does 24 belong to?

Answers

Answer:

even numbers

Step-by-step explanation:

its latter digit is divisible by 2

Even number is the answer

k (n) = 4n – 4; Find k (8)
28
4
-32
-24
The answer

Answers

Answer:

Step-by-step explanation:

k(8) = 4(8) - 4

     = 32 - 4

     = 28

answer is A

Determine the measure of the angle labeled (4x+7)°.

Answers

Answer:

  39°

Step-by-step explanation:

It is the same measure as the one labeled 6x-9, since these are vertical angles.

  4x +7 = 6x -9

  16 = 2x . . . . . . . . add 9-4x

  8 = x

  4x+7 = 4(8) +7 = 39

The angle is 39°.

There are 3 different cheeses at the deli. Yasuko buys Three-fourths of a pound of each. There are also 4 different meats. She buys One-half of a pound of each. How much total meat and cheese did Yasuko buy at the deli? One-fourth pounds 2 and one-fourth pounds 4 and one-fourth pounds 4 and one-half pounds

Answers

Question :

There are 3 different cheeses at the deli. Yasuko buys Three-fourths of a pound of each. There are also 4 different meats. She buys One-half of a pound of each. How much total meat and cheese did Yasuko buy at the deli? a) One-fourth pounds

b) 2 and one-fourth pounds

c) 4 and one-fourth pounds

d) 4 and one-half pounds

Answer:

c) 4 and one-fourth pounds

Step-by-step explanation:

From the question:

There are 3 different cheeses at the deli. Yasuko buys Three-fourths of a pound of each.

Total pounds of cheese = 3 × (3/4)

= 9/4 pounds of cheese

There are also 4 different meats. She buys One-half of a pound of each.

Total pounds of meats she bought = 4 × (1/2)

= 4/2 pounds of meat

The total pounds of total meat and cheese did Yasuko bought at the deli =

= 9/4 pounds of cheese + 4/2 pounds of meat

L.C.M = 4

= 9 × 1 + 4 × 2/4

= 9 + 8/4

= 17/4

= 4 1/4 pounds

In words is 4 and one-fourth pounds

Answer:

C

Step-by-step explanation:

Took the test

Heather is putting together a square bulletin board for her new room, and the area of the bulletin board is 196 cm2. What is the total distance around the bulletin board?

Answers

Answer:

the total distance is 56 cm

Step-by-step explanation:

Given that the area of the bulletin board is 196 cm^2

Based on this, the total distance around the bulletin board is

But before that we need to find out the side

As the area of square is

= side^2

196 = side^2

So side = 14

Now there are four sides, so the total distance is

= 4 × 14

= 56 cm

Hence, the total distance is 56 cm

Answer:

56 cm

Step-by-step explanation:

а+ За – 4(9 — а)
Simplify..

Answers

Answer:

8a-36 is the answer.

Step-by-step explanation:

=a+3a-4(9-a)

=a+3a-36+4a

=4a+4a-36

=8a-36

Hope it will help ^_^

Answer:

8a - 36

Step-by-step explanation:

a + 3a - 4(9-a)

4a - 4(9-a)

4a- 36 - 4a

8a - 36

Connor bought a baseball card eight years ago that has depreciated by $120 since he purchased it. Find the average yearly change in value of the card.

Answers

Answer:

The average yearly change in the value of the card is $15/year

Step-by-step explanation:

Here in this question, we are interested in calculating the average yearly change in the value of the card.

From the question, we can see that the value of the baseball card has depreciated by $120, thus we simply want to calculate the average yearly charge in the card value.

Mathematically, that would be ;

the total depreciation value/ number of years

From the question, the total depreciation value is $120 while the number of years is 8

Thus; the average yearly change in value of the card = 120/8 = $15/year

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