Mathematics High School

10x + 38
40 + 7x
determine the value of x

Answers

Answer 1

Answer:

x= 2/3

Step-by-step explanation:

if they are equating,

10x +38 = 40+7x

10x-7x = 40-38

3x = 2

x= 2/3

Answer 2

Answer:

x = 0.6666666667

Step-by-step explanation:

Simplifying

10x + 38 = 40 + 7x

Reorder the terms:

38 + 10x = 40 + 7x

Solving

38 + 10x = 40 + 7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.

38 + 10x + -7x = 40 + 7x + -7x

Combine like terms: 10x + -7x = 3x

38 + 3x = 40 + 7x + -7x

Combine like terms: 7x + -7x = 0

38 + 3x = 40 + 0

38 + 3x = 40

Add '-38' to each side of the equation.

38 + -38 + 3x = 40 + -38

Combine like terms: 38 + -38 = 0

0 + 3x = 40 + -38

3x = 40 + -38

Combine like terms: 40 + -38 = 2

3x = 2

Divide each side by '3'.

x = 0.6666666667

Simplifying

x = 0.6666666667

Related Questions

Help with this plz ASAP

Answers

Answer:

slope is 2 rise, 1 run

-4 is the y intercept

y= 2/1 + -4

Step-by-step explanation:

I hope I wasn't helping I cheat ;-;

u can check this over later

Please help me with this problems if you want to answer 1 that’s ok I just need help k don’t really understand.

Answers

Answer:

Step-by-step explanation:

1. 120

2saves 52 dollars

3 at normal price its 108 per tire but on sale it will be 95 per tire

Answer:

2) 120 customers per day

3) $13 per tire

Step-by-step explanation:

2) 3600÷30=120 customers per day

3) 216÷2=108

380÷4=95

108-95=$13 per tire

Which answer describes the type of sequence?
1, 6, 7, 13, ...
geometric
O arithmetic
neither arithmetic nor geometriC

Answers

I think the answer is arithmetic.
I hope this helps! Be safe out there.
Sorry if I’m wrong

Answer:

neither arithmetic nor geometric

Step-by-step explanation

I got it wrong and assuming they don't have a common ratio/ constant difference  

Which expression would be easier to simplify if you used the commutative property to change the order of the numbers?​

Answers

Answer:

B

Step-by-step explanation:

3 to the third power + 42

as a percentage.  

Answer:

It is B

Step-by-step explanation:

What is 4/9 x 5/7 x 1/2

Answers

Answer:

0.16

Step-by-step explanation:

4*5*1=20

9*7*2=126

20/126=10/63

Answer:

10/63

Step-by-step explanation:

First, let's solve 4/9 * 5/7. Multiply the numerator first- 4*5=20. The denominator is 9*7=63. So, this equals 20/63. Now we need to find 20/63 * 1/2. We can cancel out the 2 on the denominator and divide 20 on the numerator by 2. So, you get 10/63 * 1/1, which is 10/63.

It’s math I suck at it please help

Answers

Answer:

24 over 10

Step-by-step explanation:

I did it in my head

24/10 bc 10 has 1 zero (0) so you’re decimal would move over 1 to the left which is 2.4

(0, 4) and (-7, 2)
Slope intercept

Answers

Answer:

the slope is 2/7 and the intercept is 4

Step-by-step explanation:

In order to find slope, you use the equation delta y over delta x which is the equation, y2-y1/x2-x1.

In this case you plug in each point and get the equation, 2-4/-7-0 or 4-2/0+7.

Simplify to get 2/7.

To find the intercept, you must see what's the y value when x is 0. In this case it's already given to you, so y intercept is 4.

plz mark me brainliest aha.

Hank is thinking of a number. If he multiplies his number by
seven and then adds 10, he gets 59. What is Hank’s number?

Answers

hank is thinking about 7
(7x7)+10=59
7x7=49+10=59

14=-4(-6c-3)+2 find c​

Answers

Answer:

C = 0

Step-by-step explanation:

To find the answer simply, isolate the variable by dividing each side by factors that don't contain the variable to get the value of 'C'

Two trains leave stations 520 miles apart at the same time and travel toward each other. One train travels at 110 miles
per hour while the other travels at 90 miles per hour. How long will it take for the two trains to meet?
Do not do any rounding.

Answers

Answer:

They wont meet

Step-by-step explanation:

The one going 110 will pass before the other one can reach it.

Please mark me the brainliest, 5 stars, and a thanks! Have a great day!

It will take 2.6 hours (or 2 hours and 36 minutes) long for the two trains to meet when Two trains leave stations 520 miles apart at the same time and travel toward each other.

To find the time it will take for the two trains to meet, we can use the concept of relative speed.

The two trains are traveling towards each other, so their speeds add up. The combined speed of the two trains is:

110 mph + 90 mph = 200 mph

To determine the time it will take for the trains to meet, we can divide the total distance they need to cover (520 miles) by their combined speed (200 mph):

Time = Distance / Speed

Time = 520 miles / 200 mph

Time = 2.6 hours

Therefore, it will take 2.6 hours (or 2 hours and 36 minutes) for the two trains to meet.

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Geometry Substitution

I’m confused on how to substitute can someone give me a step by step explanation! Please

Answers

Answer:

x = 3

Step-by-step explanation:

I have attached a picture of me explaining you step by step.

Hope this helps, thank you !!

What is the degree of the polynomial below?
4x2+3x2 +6x+5
A. 3
B. 0
C. 1
O D. 2
​

Answers

Step-by-step explanation:

What is the total magnification if we using objective lens 4x and our eyepiece (ocular) lens is 10x

40x

100x

400x

1000x

Answer:

Simplify: (4x2 - 2x) - (-5x2 - 8x).

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Step-by-step explanation:

Hope it help

Mar, me as brainliest

nineteen less than a number is 25 write the equation

Answers

Answer:

6

Step-by-step e

PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!
SHOW THE WORK PLEASEEEE!!!

Answers

Answer:

0 the answer

i hope its help

thats the right answer

I think

−3 x^2 y^3 z^2 * -17 x^3 z^4

-(3 * -17) x^2 x^3 y^3 z^3 z^4

-(-51) x^2 x^3 y^3 z^2 z^4

-(-51x^2 x^3 y^3 z^2 z^4)

-(-51 x^5 y^3 z^2+4)

-(-51 x^5 y^3 z^6 )

51 x^5 y^3 z^6

Ramon’s teacher wrote the following table on the board

She then asked the class to write a rule for the nth term of the geometric sequence represented on the table, using the format an=a(r)^n-1

Select the values for a and r that Ramon should use in order to correctly write the rule for the nth term.

an= ___(___)^n-1

—> number choices
-3
-1/3
1/3
3
9
27
81

please only respond if you know the answer :)

Answers

Answer:

23

Step-by-step explanation:

i think if not correct sorry

PLEASE HELP IM GIVING ALL MY POINTS
when ms mason bought a new computer she borrowed 1200 at the rate of 18% for 9 months how much interest did she pay

Answers

Answer:

$216 or $162    (see below)

Step-by-step explanation:

If it's 18% for 9 months (and not per year)

then

1200x0.18=$216

If it's 18% per year then

1200x0.18x0.75=$162

will give brainliest

Answers

Answer: 65°

Step-by-step explanation:

the answer is 65 because they are supplementary

What is the domain of the function?
X+6
f(x)=(x-7)(x+5)
A all real numbers except 7
Ball real numbers except 5 and -7
Call real numbers except -5 and 7
D all real numbers

Answers

I got a domain and range of:
(
−
∞
,
5
)
∪
(
5
,
∞
)
, or
x
≠
5
(
−
∞
,
1
)
∪
(
1
,
∞
)
, or
y
≠
1
The function is undefined for
x
values when the denominator,
x
−
5
, is
0
; it's undefined to divide by
0
. Therefore, when
x
=
5
,
f
(
x
)
is undefined.
f
(
5
)
=
5
+
7
5
−
5
=
12
0
Since the domain is based on the allowed values of
x
, the domain is:
(
−
∞
,
5
)
∪
(
5
,
∞
)
Based on the domain, we would find the range by solving for
x
in terms of
f
(
x
)
, which we will write as
y
=
f
(
x
)
.
y
=
x
+
7
x
−
5
y
(
x
−
5
)
=
x
+
7
x
y
−
5
y
=
x
+
7
x
−
x
y
=
−
5
y
−
7
x
(
1
−
y
)
=
−
5
y
−
7
x
=
−
5
y
−
7
1
−
y
x
=
5
y
+
7
y
−
1
This means when
y
=
1
, the function is undefined as well. So, the range is:
(
−
∞
,
1
)
∪
(
1
,
∞
)
You can see that this is the case in the graph itself:
graph{(x + 7)/(x - 5) [-73.3, 74.9, -37.07, 36.97]}
What you should notice is the horizontal asymptote at
y
=
1
, and the vertical asymptote at
x
=
5
.
Because the function is trying to reach an undefined value at those points (
x
≠
5
,
y
≠
1
), you get these "walls" that cannot be crossed, only ascended or descended from either side.

The required domain of the function is all real numbers except -5 and 7. Option C is correct.

Given that,
f(x) = (x + 6)  /[(x-7)(x+5)]

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

here,
Given function,
f(x) = (x + 6)  /[(x-7)(x+5)]
We can put any real number on the number line except 7 and -5, because at these value function gives the value as infinity.

Thus, the required domain of the function is all real numbers except -5 and 7. Option C is correct.

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Solve 2x=54xˆ(2/3)

Please, I need the step by step working to find the value of x

Answers

Answer:

x = 19683 or x = 0

Step-by-step explanation:

Solve for x:

2 x = 54 x^(2/3)

Hint: | Isolate the radical to the left hand side by reversing the equality.

2 x = 54 x^(2/3) is equivalent to 54 x^(2/3) = 2 x:

54 x^(2/3) = 2 x

Hint: | Eliminate the power on the left hand side.

Raise both sides to the power of three:

157464 x^2 = 8 x^3

Hint: | Move everything to the left hand side.

Subtract 8 x^3 from both sides:

157464 x^2 - 8 x^3 = 0

Hint: | Factor the left hand side.

Factor x^2 and constant terms from the left hand side:

-8 x^2 (x - 19683) = 0

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by -8:

x^2 (x - 19683) = 0

Hint: | Find the roots of each term in the product separately.

Split into two equations:

x - 19683 = 0 or x^2 = 0

Hint: | Look at the first equation: Solve for x.

Add 19683 to both sides:

x = 19683 or x^2 = 0

Hint: | Look at the second equation: Eliminate the exponent.

Take the square root of both sides:

Answer: x = 19683 or x = 0

Help Please!! On the 1st and 2nd one. just the decent and independent variable and the equation please!

Answers

hi, did you attach the picture for it?

-6 + -8 10 points plz help

Answers

Answer

The answer is negative 14.

Step-by-step explanation:

When you add a negative by a negative it equals a negative. Like if you add 1 + 1 it's going to equal 2 which is a positive, not a negative. So the answer is technically 8 + 6 which is 14 and all you have to do is add a negative sign.

Joe bought g gallons of gasoline for $2.65 per gallon and c cans of oil for $3.45 per can. a. What expression can be used to determine the total amount Joe spent on gasoline and oil? b. If he bought 8.4 gallons of gasoline and 9 cans of oil, how much did he spend in all?​

Answers

Step-by-step explanation:

PART A

a=total amount

c=cans of oil

g=gasoline

a=2.65g+3.45c

PART B

a=2.85(8.4)+3.15(6)

a=23.94+18.90

a=42.84

Hope that helped =)

Javier works each weekend at an animal shelter. He earns $8 an hour. He is saving his earnings to go on a ski trip that costs $190.

Becca says that Javier must work at least 6 more hours to have enough money to go on the ski trip. Her work is shown below. Choose True or False about each statement

Becca's solution included all of the hours Javier worked on both weekends. (TRUE OR FALSE?)

Javier worked a total of 23 hours on both weekends. (TRUE OR FALSE?)

Javier earns $198 for 24 hours of work. (TRUE OR FALSE?)

Javier only needs to work one more hour to have enough money for his trip. (TRUE OR FALSE?)

Answers

Answer:

Becca's solution included all of the hours Javier worked on both weekends.

Step-by-step explanation:

Javier needs to work at least 6 more hours. He will earn:

6*8 = $48

He has already got:

$190 - $48 = $142

He worked:

142/8 = 18 hours (rounded)

Total he will have worked:

18 + 6 = 24 hours

Answer choices:

Becca's solution included all of the hours Javier worked on both weekends.

TRUE

Javier worked a total of 23 hours on both weekends.

FALSE. 23*$8 = $184 < $190

Javier earns $198 for 24 hours of work.

FALSE. 24*8 = $192

Javier only needs to work one more hour to have enough money for his trip.

FALSE. Becca says 6 more hours required.

HURRY!!!!!
The variables y and x have a proportional relationship, and y = 7 when x = 2.
What is the value of y when x = 5?

Answers

Answer:

y=10

Step-by-step explanation:

what ever x='s you add 5 and what ever y='s you subtract 5

Answer:

The answer is 17.5

Step-by-step explanation:

if you divide 17.5 / 5 it will equal the same number as dividing 7 / 2 so 17.5 / 5 = 3.5

Please help if you can’t see the photo the problem is
.5/1 = x/1.2+x

Answers

Answer:

x= 30/11

11x=30

Step-by-step explanation:

1/2 x 1/7? Pls help me!!!!

Answers

Answer:

0.07142857142

Step-by-step explanation:

1/14
Is the answer,your welcome

Three partners in a business venture have incurred a debt of $9,876. Use an integer to express the amount of debt for each one.

Answers

Answer:

$3292

$9,876/3 = 3292

10) -6x + 8y = 0
-3x + 4y = 2

Infinite solution or no solution

Answers

no solution bc if u multiply the bottom equation by -2, it makes 6x-8y=-4. This caused the x and y to eliminate, leaving 0=2.

Please help me out fast. And make sure to Write and solve an inequality. Or it isn't right.

Answers

Answer:

addition or multiplication?

Step-by-step explanation:

Answer:

6x + 45 > 240

Step-by-step explanation:

I will give in a min. You need it urgently right. So you can have the answer for now!!!

The basking shark can grow to a length of 30 feet. This is 176.47% of the maximum length of the beluga whale. Find the maximum length of the beluga whale. If necessary, round your answer to the nearest tenth.
a) 52.9ft
b) 17ft
c) 5.9ft
d)1.7ft

Answers

Answer:

b

Step-by-step explanation:

The maximum length of the beluga whale is 17 feet.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, The basking shark can grow to a length of 30 feet.

This is 176.47% of the maximum length of the beluga whale.

Assuming the maximum length of a beluga whale is x feet.

So,  176.47% of x is 30 feet.

∴ (176.47/100)×x = 30.

1.7647x = 30.

x = (30/1.7647).

x = 17 feet.

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