Mathematics College

Find x for each of the problems;
1) 2x+5=12+x
2)5x=30+3x
3)2+x/3=7
4)15-x=17-2x
5)6x= -42-x
6)36-4x=26-3x
7) -2+x=15

Answers

Answer 1

Answer:

1) x = 7

2) x = 15

3) x = 19

4) x = 2

5) x = - 6

6) x = 10

7) x = 17

Step-by-step explanation:

1) 2x + 5= 12 +x

  -x                -x

2x -x + 5 = 12

          -5     -5

x = 7

2) 5x = 30 + 3x

   -3x          -3x

2x = 30

x = 15

3) 2 + x/3 = 7

3(2 + x/3) = (7) 3

2 + x = 21

-2         -2

x = 19

4) 15 - x = 17 - 2x

       +2x       +2x

15 - x + 2x = 17

-15               -15

x = 2

5) 6x = - 42 - x

   +x            +x

7x = -42

x = - 6

6) 36 - 4x = 26 - 3x

         +3x           +3x

36 - x = 26

-36        -36

-x = -10

x = 10

7) -2 + x = 15

   +2         +2

x = 17

hope this helps!

Related Questions

Find the measure of the arc or angle indicated. Assume GE is the diameter of
the circle
O 70°
0 47
O 54
O 60°

Answers

Answer: 70 degrees (i had that question got it right)

Step-by-step explanation:

which one is greater 140% or 0.14

Answers

140% because you can convert 0.14 to 14% or u can convert 140% to 1.4.

A college student takes the same number of credits each semester. She had 9 credits when she started, and after 6 semesters, she had 117 credits.

Answers

Answer:

18 credits per semester

Step-by-step explanation:

Based on the information given the rate at which she is earning credits  is 18 credits per semester.

Using this formula

Credits earning rate=Ending credit-Beginning credits /Number of semesters

Where:

Ending credits=117 credits

Beginning credits=9 credits

Number of semesters=6

Let plug in the formula

Credits earning rate=117-9/6

Credits earning rate=108/6

Credits earning rate=18 credits

Inconclusion the rate at which she is earning credits  is 18 credits per semester.

Learn more here:https://brainly.com/question/25458096

please help and I will mark big brain ​

Answers

Answer: 6

Step-by-step explanation:

(41--1)/ (8-1)  = 42/7 = 6

Answer:

6

Step-by-step explanation:

I learned this before

A coin is tossed 5 times; find the probability of getting at least 1 tail. Would you consider this event likely to happen?

Answers

Answer: 0.96875

Step-by-step explanation:

Probability of obtaining at least one tail on a toss of coin 5 times ;

P(success) in a coin toss = 1/2 = 0.5

Using the binomial distribution formula :

P(x) = nCx * p^x * (1 - p)^(n-x)

P(at least one tail) = 1 - p(0 tails)

P( 0 tails) = 5C0 * 0.5^0 * 0.5^(5-0)

= 1 * 1 * 0.03125

= 0.03125

P(at leat 1 tail) = 1 - 0.03125

P(atleast 1 tail) = 0.96875

12 1/2 percent multiple 64
​

Answers

Answer: The answer is 384 if your question is 12x1/2x64

The answer is 800 haha

Please help if you can. I will give you a brainliest !!

Answers

Answer:

its blurry I cant even see it

Step-by-step explanation:

During one month, a homeowner used 600 units of electricity and 100 units of gas for a total cost of 390. The next month, 400 units of electricity and 250 units of gas were used for a total cost of $326. Find the cost per unit of gas.

Answers

Answer:

cost per unit of gas i.e y= 0.36

Step-by-step explanation:

Let cost per unit of electricity = x

and cost per unit of gas = y

The equations required will be:

[tex]600x+100y=390 ---- eq(1)\\400x+250y=326----eq(2)[/tex]

We need to find value of y i.e cost per unit of gas

Solving equations to find value of y

We will use elimination method

Multiply equation 1 by 4 and 2 by 6

[tex]2400x+400y=1560 ---- eq(1)\\2400x+1500y=1956----eq(2)[/tex]

Subtracting eq 1 from eq 2

[tex]2400x+1500y=1956----eq(2)\\2400x+400y=1560 ---- eq(1)\\- \ \ \ \ \ - \ \ \ \ \ \ \ \ \ \ -\\----------------\\1100y=396\\y=\frac{396}{1100}\\y=0.36[/tex]

Solving we get y=0.36

Putting value of y in eq(1) to find value of x

[tex]600x+100y=390\\600x+100(0.36)=390\\600x+36=390\\600x=390-36\\600x=354\\x=\frac{354}{600}\\x=0.59[/tex]

Value of x = 0.59

But we need to find only cost of unit of gas i.e y

So, cost per unit of gas i,e y= 0.36

What is 40/4.



From this_guy

Answers

Answer:

10

Step-by-step explanation:

40/4= 10

Harry needs 21 square meters of fabric for every 6 wizard cloaks he makes. Complete the table using equivalent ratios. help me pleaseeee

Answers

Answer:

21/6 = 7/2 = 14/4

Step-by-step explanation:

Answer:

21:6 7:2 14:4

Step-by-step explanation:

How many solutions does -3+9v=8v have

Answers

Answer:

-3 = 8v-9v

-3 = -1v

v = -3/-1

v = 3

ONE SOLUTION

Answer:

-3+9v=8v

By moving the terms,
9v-8v=3
1v=3
1v/1=3/1

So -3+9v=8v has one solution.

What is the slope of line m?

Answers

Answer:

Slope= -0.5

Step-by-step explanation:

Answer:

1/2x

Step-by-step explanation:

You go down one step and run 2 steps

Anthony has t tickets. Charlie has 2 less than triple the number of tickets that Anthony has. In terms of t, how many tickets does Charlie have?​

Answers

Answer:

3t-2

Step-by-step explanation:

if anthony has t tickets multiply that by 3 with 3t and subtract 2

A fencewill go around a circular Garden. The radius of the garden is 29 feet what length of fence is needed

Answers

Answer: 58π = 182. 21 feet

Step-by-step explanation:

Circumfrence is kinda like the perimeter of the circle and we need to use the cirucumfrence formula 2πr to solve for the length of fence needed.

2π(29) = 58π = 182. 21 feet

please help me :(
Jill, Grace, and Billy shared pennies in the ratio 2 : 4 : 4. They had a total of 120 pennies in all. How many pennies did Jill receive?

2 pennies

24 pennies

48 pennies

60 pennies

Answers

Answer:

24

Step-by-step explanation:  

Jill 2 Grace 4 Billy 4

Jill 24

Grace 48

Billy 48

Answer:

4+4+2=10

120/10=12

12*2=24

24

Step-by-step explanation:

Unit test Select two ratios that are equivalent to 2 : 12. Choose 2 answers: A 6:40 B 12:2 C 3:24 D 1:6 E 8:48​

Answers

D & E

D) if you divide the ratios by 2 you get 1:6
E) if you multiply each ratio by 4 you get 8:48

You can’t divide or multiply any of the other numbers with 2 and 12 (together) to get you the other answers

BRAINLIEST TO THE CORRECT ANSWER PLEASE HELP ME I BEG U
Chelsea's catering company charges a fixed rate for each hour of an event they work plus a set-up fee. The total cost (C) of the company's last 4 events according to the total hours (h) they worked is found
in the table above.

Which statement is the best representation of the total cost to hire Chelsea's catering company?
A.C= 100* + 25
B. C = 75h + 325
C.C= (100 + 75)"
D. C- 100 + 75h
PLS HELP

Answers

Answer:

I believe is D. C= 100$+75h

Step-by-step explanation:

Looks like for each day they paid 100$ fee + 75$ per each hour.

Find the missing angle:

Answers

Answer:

40

Step-by-step explanation:

Use this picture as a reference.

So, using remote angles theorem, which states that; the angle formed from the extension of a side in a triangle is equal to the sum of the two angles which it does not make contact with, within the triangle. One can conclude that :

m< BCD = m<B + m<A

substitute:

m<BCD = 80 + 25

Simplify:

m<BCD = 105

Since it is given that m< BCE is 50, then  one has to subtract m<BCE from m<BCD to get m<ECD

m<BCD - m<BCE = m<ECD

Subsitute:

105 - 50 = m<ECD

Simplify:

55 = m<ECD

Using the sum of angles in a triangle, which states that the sum of all the angles in a triangle is 180 degrees, one can say that:

m<D + m<ECD + m<E = 180

Substitute:

85 + 55 + m<E = 180

Simplify, inverse operations:

140 + m<E = 180

-40               -140

m<E = 40

A scientist is examining a multicellular organism that has the ability to move from one location to another and eats food to gain energy for survival. What kingdom would be the best option when classifying this organism?

Answers

Answer:

Animalia


Explanation:

From the kingdom Animalia, we can know many characteristics of Anamalia. Kingdom Animalia is made of all animals. The animal kingdom is the largest kingdom among the five kingdoms. Some of their features are:
They are multicellular eukaryotes.
They don’t have a cell wall or chlorophyll like plants.
They have a heterotrophic mode of nutrition.
They can move from one place to another place.
They can catch their food.
They depend on other animals for their food purpose.
For collecting food, they can change their place by moving.
From these characteristics, we can say that the Animalia kingdom would be the best option when classifying this organism.

May y'all please help me

Answers

Answer:

2x^2 - 11x + 6

Step-by-step explanation:

2x^2 + 4x - 3 * (5x - 2)

Distribute -3 between the parentheses like so.

2x^2 + 4x - 15x + 6

And then add like terms 4x and 15x together.

2x^2 - 11x + 6

Write the standard form of the line that has a slope of −3/4 and y-intercept of −2. Include your work in your final answer.

Answers

First let’s write it in slope intercept form
Y=Mx+b —-> Y=-3/4x-2

Then we can put it in standard form
Ax+By=C

We move the x to the other side
3/4x+y=-2

And that’ll be your answer :)

*if Ax it’s not positive you will have to multiply by -1*

A company refinishes wood floors for $1.50 per square foot. Makayla hires the company to refinish 1,000 square feet
in her home. How much does she pay for the refinishing work?
$500
$1,000
$1,500
$5,000

Answers

Answer:

The correct answer is $1,500

Step-by-step explanation:

hope this helps

A landlord owns 3 condominiums, a 1-bedroom condo, a 2-bedroom condo, and a 3-bedroom condo. The total rent she receives is $1240. She needs to make repairs on the condos, and it costs 10% of the 1-bedroom condo’s rent for its repairs, 20% of the 2-bedroom for its repairs, and 30% of the 3-bedroom condo’s rent for its repairs. The total repair bill was $276. The 3-bedroom condo’s rent is twice the 1-bedroom condo’s rent. How much is the rent for all three condos?

Answers

1 bedroom condo rent be xThree bedroom condo rent be 3x.

Total spent percentage=30+10=40%

Now

[tex]\\ \sf\longmapsto 40\%\:of 1240[/tex]

[tex]\\ \sf\longmapsto 0.40(1240)[/tex]

[tex]\\ \sf\longmapsto 472[/tex]

Total rent for three condos

[tex]\\ \sf\longmapsto 472+276=752[/tex]

(08.01)Two lines, A and B, are represented by the following equations:

Line A: 2x + 2y = 8
Line B: x + y = 3

Which statement is true about the solution to the set of equations?

It is (1, 2).
There are infinitely many solutions.
It is (2, 2).
There is no solution.

Answers

Answer:

It is D, ( the numbers to the right of the equals sign are different.)

Step-by-step explanation:

8


Find the circumference of the circle pictured above.

Round your answer to the nearest tenth

Answers

I’m guessing 8 is the radius so the formula is 2pi(r)

And when you plug in 8 into r you have 2pi(8)

When you solve it you should get 50.24

Can you pls mark brainleist

Opps- THIS IS DUE IN 7 MINS HALPPPPP!!!! I FORGOT TO DO THIS AND NOW I NEED HALPPPP

ps. Giving 30 points if answer is given

Answers

Answer:

I believe the bottom one is true and the rest are false

Step-by-step explanation:

bottom one true

Answer:

it is the last one. it is a smaller distance from Drachten

Step-by-step explanation:

The square shown has sides of length 6z^7 decimeters. Find it’s area

Answers

Answer:

49z^10 dm^2

Step-by-step explanation:

The table shows the weekly profits of a fruit
vendor. What is the mean profit for these weeks?
Week
1
2
3
4
Profit -$125 -$86
$54
- $35
The mean profit is $

Answers

Answer:

-48

Step-by-step explanation:=-48

The mean profit of the fruits will be $75.

What is mean?

Mean is defined as the ratio of the sum of the number of data sets to the total number of data. The mean is just like an average it is calculated by taking the ratio of the sum of all the numbers to the total count of the numbers.

Given that the weekly profit of the fruits is $125, $86, $54, and $35. The mean will be calculated as:-

Mean = ( 125 + 86 + 54 + 35 ) / 4

Mean = 300 / 4

Mean = $75

Therefore, the mean profit of the fruits will be $75.

To know more about mean follow

https://brainly.com/question/968894

#SPJ5

What is the slope and y-intercept of the equation on this graph

Answers

Answer:

C.

Step-by-step explanation:

Twelve large bottles of water cost $9. a. How many bottles can you buy for $3?

Answers

you can buy 4 bottles

Answer:

4 bottles

Step-by-step

3 is 1/3 of 9 and 12/3 is 4 bottles

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