2x + 8y=30 y=2 solve for x

Answers

Answer 1

Answer:

23

Step-by-step explanation:

2x+ 8(2)= 30

2x+ 16=30

2x=14

x=7

Answer 2
The value for x is 23

Related Questions

A salesman makes both a base salary and also a commission, which is a percentage of
what he sells. Each month, if his sales total s dollars, he makes a total of 5000+ 0.2s. What
does the 5000 represent?

Answers

Answer:

a salesman make 5000+0.2

total 5000+5000.2=10000.2

Please help find the measurement of exterior angle MBI

Answers

Answer:

The measure of an exterior angle is found by the following formula: Aˆ0B=^AB-^CD2. An interior angle has its vertex at the intersection of two lines that intersect inside a circle. The sides of the angle lie on the intersecting lines. You can find a measure of an exterior angle of a regular polygon with  

N  sides.  It is equal to   360 o N .

Step-by-step explanation:  

Angles of a general polygon (exterior and interior) with more than 3 sides are not defined by the lengths of its sides.  

However, we can calculate the sum of all interior or exterior angles of any convex polygon. It equals to  360 o .

It can be proven geometrically since each exterior angle describes a rotation by some angle and a sum of all exterior angles describes a rotation by full angle of  

360 o . So, if all exterior angles are equal, like in a regular polygon, each one equals to  360 o N .

It can also be defined with some algebraic calculations based on the fact that a sum of all interior angles is  ( N − 2 ) ⋅ 180 o .  

Dividing the above by  N

we will obtain a value of an interior angle:  ( N − 2 ) ⋅ 180o N .  

Therefore, exterior angle of a regular polygon is  180 o − ( N − 2 ) ⋅ 180 o N = 360 o N

The perimeter of a rectangle is 32 meters. The length is 5 less than twice the width. Find the length and the width of the rectangle.
length:___ Width:____

Answers

Let x and y be the length and width of the rectangle respectively
2(x+y)=32...(1)
x=2y-5...(2)

From (1),we have
2x+2y=32...(3)

By sub.(2) into (3),we have
2(2y-5)+2y=32
4y-10+2y=32
6y=42
y=7

By sub.y=7 into (2),we have
x=2*7-5
x=14-5
x=9

Length =9m
Width =7m

Please help me ASAP! on these two questions please and thank you have a great and blessed day!

Answers

Answer:

1: 1.268, 1.265, 1.256

2: $16.42

Step-by-step explanation:

I did the math.

number of
Joshua has ad Jarr of apple Jam and
36 gars of mango Jam. He want to place
the pamiam into the greatest possible
boxes so that cach box
the same number of Jars of each
kind of sam. How many boxes does
he need?

Answers

lwoeofpxs kfi wn ee's osoakem

Step-by-step explanation:

owlekdx9zinqrnxiz n.v w w d f ds no wkw

If R, S, and T are collinear and RS + ST = RT, which of the following is true?

T is between R and S.
RS = RT
S is between R and T.
S is the midpoint of ./rt

Answers

Answer:

[tex]S \: is \: between \: R \: and \: T.[/tex]

Answer:

S is between R and T.

Step-by-step explanation:

Apply the distributive property to factor out the greatest common factor. 21e + 35 = ​

Answers

Answer:

7(3e+5) alternative form 92.08392

Step-by-step explanation:

you made a 12 minute call using a calling card. The call costs $0.66. there is a $1.21 left on your card. if the rate stays the same, how many more minutes can you talk for using the card

Answers

1 because .66+ .66 is 1.32 which is an amount you don’t have. So 1 should be the answer.

1 ½ - 6/10 =
HELP PLS

Answers

Answer:

0.9

Step-by-step explanation:

1 1/2 = 1.5

6/10 = 0.6

1.5 - 0.6 = 0.9

1) Which is the slope in the following linear equation?
y= 7x + 3
A. 3
B. 11
C. 7
D. 4

Answers

Answer:

C. 7

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

y = 7x + 3

Step 2: Break Function

Identify Parts

Slope m = 7

y-intercept b = 3

Add 3 to the product 10 and 4

Answers

Answer:

The product of" , means multiply , the product of 10 and 4 is 40 , plus 3, 43?

The solution of the expression is,

⇒ 43

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

The expression is,

⇒ Add 3 to the product 10 and 4

Now, We can simplify as;

⇒ 3 + (10 × 4)

⇒ 3 + 40

⇒ 43

Thus, The solution of the expression is,

⇒ 43

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

Please help i need answers am bad at math

Answers

Answer:

1) 2 5/9

2) 4 5/6

3) 4 3/8

4) 5 3/5

5) 7 1/3

6) 6 1/9

7) 7 1/8

8) 2 2/9

9) 5 3/4

Step-by-step explanation:

Hope this helps

When you multiply a given fraction by a factor greater than 1, the product will (always, sometimes, never) be less than the given fraction

Answers

9514 1404 393

Answer:

  sometimes

Step-by-step explanation:

For positive numbers, multiplying by a factor greater than 1 increases their value:

  (1/2) × 2 = 1 > 1/2

For negative numbers, multiplying by a factor greater than 1 decreases their value:

  (-1//2) × 2 = -1 < -1/2

So, "sometimes" the product will be less than the given fraction.

Suppose that a box of 86 circuits is sent to a manufacturing plant. Of the 86 circuits shipped, 5 are defective. The plant manager receiving the circuits randomly selects 2, without replacement, and tests them. If both circuits work, the manager will accept the shipment. Otherwise the shipment is rejected. What is the probability that the shipment is accepted

Answers

Answer:

the probability that the shipment is accepted is 0.8865

Step-by-step explanation:

Given the data in the question;

N = 86,  n/d = 5 and n = 2

now, without replacement

the probability that the shipment is accepted will be;

probability that the shipment is accepted = probability that non is defectives

so p( non is defective ) = ( (86-5)/86) × ((86-5-1)/(86-1))            

p( non is defective ) =  ( 81 / 86) × (80/85)

p( non is defective ) =  0.8865

Therefore, the probability that the shipment is accepted is 0.8865

if the sales are $680 and the commission rate is 9% what is the commission

Answers

Answer:

61.2

Step-by-step explanation:

A store is instructed by corporate headquarters to put a markup of 25​% on all items. An item costing ​$16 is displayed by the store manager at a selling price of ​$4. As an​ employee, you notice that this selling price is incorrect. Find the correct selling price. What was the​ manager's likely​ error?

Answers

Answer:

$20

Step-by-step explanation:

the manager's error could likely be putting the percentage mark up rather than the markup price added to the original price

25%×16

= $4

mark up price= (16+4)$

= $20

Scott is getting balloons for his uncle's birthday party. He wants each balloon string to be 6 feet long. At the party store, string is sold by the yard. If Scott wants to get 59 balloons, how many yards of string will he need?
1 foot =
1
3
yard

Answers

1st, find how many how many feet of string is needed. 2nd, use that amount of feet and find the yard equivalent.

Calculate and write your answer in standard form.

(7x10^-4) divided by(4x10^4)
I
Enter your math answer

Answers

1.75 x 10^-3
hope that helps

need help geometry be serious

Answers

Angle A would be the correct one

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Can you put a picture to help

will mark brainliest need answer asap first person to answer gets brainliest

Answers

Answer:

A= [tex]4x+8[/tex]

B= [tex]8x+6x \\or\\ 16x[/tex]

C= [tex]8x+12[/tex]

D= [tex]6x+6y+6z[/tex]

Step-by-step explanation:

Distributing, or the means to divide something/create a share or part of something is when we multiply the sum of two or more addends by a number to achieve the same result as multiplying each addend individually by the number then adding the products together.

With this said, part A would look like this:

[tex]4(x+2)\\4(x) + 4(2) = ?\\4x + 8[/tex]

Now, the problem doesn't specifically state to solve the problem, but if you wanted too it would look like this:

[tex]4x + 8=0\\-8 \\4x=-8\\divide 4\\4=GCF\\x=-2[/tex]

Since we are just looking for the equation, the following problems would appear as so:

B:

[tex](6+8)*x\\x(8) + x(6)\\8x+6x\\14x[/tex]

C:

[tex]4(2x+3)\\4(2x)+4(3)\\8x+12[/tex]

D:

[tex]6(x+y+z)\\6(x) +6(y)+6(z)\\6x+6y+6z[/tex]

Another way to view the distributive property is that your distributing the number outside the parenthesis to all the number inside as such.

I would be happy to help you again in the future and hope that this provided you with some clarification! Have a nice day! :D

Solve the equation.
с/8 = 9
c =

Answers

72. because i have to do the inverse of c/8 so u would multiply 8 and 9 and get 72.

a) Expand and simplify (4x + 3)(2x - 5)

Answers

Answer:

8x² - 14x - 15

Step-by-step explanation:

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

8x² - 20x + 6x - 15

8x² - 14x - 15

Answer:

Step-by-step explanation:

Use FOIL, first outside inside last.

4x*2x - 5*4x + 3*2x - 3*5

[tex]8x^2-20x+6x-15\\8x^2-14x-15\\[/tex]

What is a correct way to rewrite abac?




a(b + c)


a2bc


2a(b + c)


abc

Answers

Answer: A(b+c)

Step-by-step explanation: Since you're multiplying A and A you would add the B+C

Answer:

a(b + c)

Step-by-step explanation:

Division of Labor:
There were 4 hobos that arrived in town looking for work. They met with a business owner who said he could pay them for 200 hours of work. However, there was a catch. They could divide up the work anyway they wanted, but each hobo had to work the same number of days as he/she worked hours in 1 day. For example, If a hobo worked 8 hours a day, he/she had to work for 8 days. The other catch is that the laziest hobo of all did the negotiations with the business owner and then went back to present the plan to his/her pals.

The question is how many hours a day did each hobo work?
(please be asap lol i need help on this )​

Answers

Answer:

16

Step-by-step explanation:

What is the product of 3x(x2 + 4)?
O x2 + 3x + 4
O 3.3 + 4
O 3.3 + 12x
O 3.x2 + 12x

Answers

Answer:

The fourth option

The radius of a sphere is increasing at a rate of 4 mm/s. How fast is the volume increasing (in mm^3/s) when the diameter is 60 mm

Answers

Answer:

The volume is increasing at a rate of 1508 cubic millimeters per second when the diameter is 60 mm.

Step-by-step explanation:

Volume of a sphere:

The volume of a sphere is given by the following equation:

[tex]V = \frac{4\pi r^3}{3}[/tex]

In which r is the radius.

Implicit derivatives:

This question is solving by implicit derivatives. We derivate V and r, implicitly as function of t. So

[tex]\frac{dV}{dt} = 4\pi r^2 \frac{dr}{dt}[/tex]

The radius of a sphere is increasing at a rate of 4 mm/s.

This means that [tex]\frac{dr}{dt} = 4[/tex]

How fast is the volume increasing (in mm^3/s) when the diameter is 60 mm?

This is [tex]\frac{dV}{dt}[/tex] when [tex]r = \frac{d}{2} = \frac{60}{2} = 30[/tex]. So

[tex]\frac{dV}{dt} = 4\pi r^2 \frac{dr}{dt}[/tex]

[tex]\frac{dV}{dt} = 4\pi*(30)^2*4[/tex]

[tex]\frac{dV}{dt} = 1508[/tex]

The volume is increasing at a rate of 1508 cubic millimeters per second when the diameter is 60 mm.

Describe how you would find the value of an "a" coefficient.

Answers

Answer:

A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient. Variables with no number have a coefficient of 1.

Step-by-step explanation:

How is the derivative of a function related to the slop of the function?

Answers

Hi there!

The derivative of the function is the slope of the function at a specific x-value, or its instantaneous rate of change.

For example, take the equation y = x².

Using the power rule, we get:

y' = 2x

If we plug in any x-value into this equation, we can find the slope of the function at any point.

Ex:

x = 0; 2(0) = slope of 0

x = 2; 2(2) = slope of 4

What is the value of the constant in the equation that relates the height and
width of this rectangle?

Answers

Answer:

The answer is A

30

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