what does 2x+2y=7 equal to

Answers

Answer 1
Let's solve for x.
2
x
+
2
y
=
7
Step 1: Add -2y to both sides.
2
x
+
2
y
+

2
y
=
7
+

2
y
2
x
=

2
y
+
7
Step 2: Divide both sides by 2.
2
x
2
=

2
y
+
7
2
x
=

y
+
7
2



Let's solve for y.
2
x
+
2
y
=
7
Step 1: Add -2x to both sides.
2
x
+
2
y
+

2
x
=
7
+

2
x
2
y
=

2
x
+
7
Step 2: Divide both sides by 2.
2
y
2
=

2
x
+
7
2
y
=

x
+
7
2
Answer:
y
=

x
+
7
2


Related Questions

A rectangular hotel room is 5 meters by 7 meters. The owner of the hotel wants to recarpet the room with carpet that costs $43.00 per square meter. How much will it cost to recarpet the room?

Answers

Answer:

$1505

Step-by-step explanation:

area = 5 x 7 = 35 m²

35 m² x $43 per m² = $1505

A city has a population of 310,000 people.Suppose that each year the population grows by 6.5% . What will the population be after 9 years?

Answers

Answer:

546,397 people

Step-by-step explanation:

We solve for the above question, using the formula for Exponential growth

The formula is given as

P(t) = Po (1 + r)^t

Po = Initial population = 310,000

r = Exponential growth rate = 6.5% = 0.065

t = Time in years = 9

P(t) = Population size after time t

Hence:

P(t) = 310,000 × (1 + 0.065)⁹

P(t) = 546,396.82088 people

Approximately =546,397 people

The population will be 546,397 people after 9 years.

Rachel has a certain number of pencils in her locker. She has 12 sharpened pencils and 32 unsharpened pencils. What is the ratio of unsharpened pencils to sharpened pencils?

Answers

Answer:

sharpened to unsharpened = 3 : 8

for every 3 sharpened pencil, there are 8 unsharpened pencils

Step-by-step explanation:

12s : 32u

12/32

divide both by 4

3/8

ratio = 3:8

Why does everyone expect people to awnser questions but they never awnser any them selves like I need help and I've helped loads of people with their questions but not even a single one of my questions are awnsered people just want fee points so they pick easy questions not cool

Answers

Answer:

thats crazy bro

Step-by-step explanation:

Answer:

This is very true

Step-by-step explanation:

I know how you feel

What is 95% as a whole number

Answers

Answer:

95

Step-by-step explanation:

Answer:

95% of what? this question is incomplete.

Debby used a garden hose to fill up a 4-gallon bucket in just 1/6 of a minute. At what rate does water flow through the hose?​

Answers

Answer:

24 gallons

Step-by-step explanation:

6. Monthly Mortgage payments can be found using the formula Below:

M-PG2)(1+1)"

(1+12"-1

M = monthly payment

P = amount borrowed

r=annual interest rate

n = number of monthly payments

The Ranallo family just bought a house. They qualified for an annual interest rate of 5.2% and their monthly payment

was $800 for a 30 year mortgage. Algebraically determine the amount of their loan to buy the house.

Answers

Answer:  your equation is poorly written/wrong hence I used the equation below

answer :  $289156.63

Step-by-step explanation:

applying the formula to calculate monthly repayment of Mortgage

M = P [ r(1+r)^n / ( ( 1+r )^n ) -1 ) ]  -----  ( 1 )

M = Total monthly payment = 800 * 12 * 30 = $ 288,000

P = ?

r = 5.2% / 12 = 0.4%

n = 30 * 12 = 360 months

Back to equation 1

P = M / [ r(1+r)^n / ( ( 1+r )^n ) -1 ) ]

   = 288000 / [ 0.004 ( 1.004)^360 / (( 1.004)^360 ) - 1 ) ]

   = 288,000 / -0.996  =  - $289156.63 ( It has a negative value because It is a loan borrowed )

Ramon paid $3.25 for notepads and $1.80 for markers.
how much of each item did he buy?

notepad cost: $0.65
markers cost: $0.36

Answers

He bought 5 notepads and 5 markers.

"five times the difference of x and 4" represent?

Answers

Answer:

5(x-4) or 5(x-4)

Step-by-step explanation:

(not 100% sure though)

[tex]five \: times \: the \: difference \: of \: x [/tex]

[tex]and \: 4 \: represents \: 5(x - 4)[/tex]

Simplify the following expression by combining like terms.

Answers

Answer:

5p + 2w + 2

Step-by-step explanation:

The compound interest on a sum of money in 2 yes and 4 yrs are 5460 and 12060.6 then find principle​

Answers

Answer:

2471.81

Step-by-step explanation:

Let I be the interest, r the annual rate and P the principal. Then:

I = P(r)^2 = 5460

I = P(r)^4 = 12060.6

so r^2 = P(r)^4 /  P(r)^2 = 12060.6/5460

r^2 = 2.2089

r = 1.486

So  P(r)^2 = P* 2.2089 = 5460

P = 5460 / 2.2089 = 2471.81.

In the equation P = 1,000T/V, find the value of P when T = 32 and V = 800.

(And please explain it! Don't just answer.)

Answers

Answer:

Step-by-step explanation:

1. Substitute t and v

p=1000(32)/800

2. solve

p=32000/800

3.simplify

p=40

hope it helps, please mark as brainliest :)

Five examples of how circles and their radii be used in other content areas

Answers

Thanks for the points but i hope you have a great day and find your answer

Given that 3x : 8 = 9 :2 , find the value of x .

Answers

Answer:

i hope you understand this answer

[tex]3x : 8 = 9 : 2[/tex]

[tex] \frac{3x}{8} = \frac{9}{2} [/tex]

[tex]3x × 2 = 8 × 9[/tex]

[tex]3x = \frac{8 \times 9}{2} [/tex]

[tex]3x = 4 \times 9[/tex]

[tex]x = \frac{4 \times 9}{3} [/tex]

[tex]x = 4 \times 3[/tex]

[tex]x = 12[/tex]

Consider the following pair of equations.
Y = x + 4
Y = -2x - 2
Explain how you will solve the pair of equations by substitution. Show all the steps and write down the solution in (x, y) corn.

Answers

Answer:

(- 2, 2 )

Step-by-step explanation:

Given the 2 equations

y = x + 4 → (1)

y = - 2x - 2 → (2)

Substitute y = x + 4 into (2)

x + 4 = - 2x - 2 ( add 2x to both sides )

3x + 4 = - 2 ( subtract 4 from both sides )

3x = - 6 ( divide both sides by 3 )

x = - 2

Substitute x = - 2 into either of the 2 equations abd evaluate for y

Substituting into (1)

y = - 2 + 4 = 2

solution is (- 2, 2 )

What is the radius of this circle?

Answers

Answer:

5 cm

Step-by-step explanation:

Here, In given circle the radius is 5cm

-TheUnknownScientist

Manuel earns $7.25 per hour helping his neighbor. Last month he earned $348. Choose the correct equation and solution which determines the number of hours, h, Manuel worked.

Answers

Answer:

7.25h=348

Step-by-step explanation:

explain how the values of the two 5’s in the number 555 are different

Answers

Answer:

the 5 that is 1st is in hundredths place the second on is the the tenth place and the last one is in the oneths place

Step-by-step explanation:

The value of the power (-8) ti the second power is

Answers

Answer:

64

-8 to the second power is -8^2 Which is -8×-8 Which gives 64

xample 2
Find the median, lower quartile, and upper quartile of the numbers.
2 4 32 9 12 22 18 20 16 24 28 11
1 - Arrange the numbers in order from least to greatest.
249 11 12 16 18 20 22 24 28 32
16 18
2-median (second quartile) =
2.
34
= 17
2.
2 4 9 11 12 16 18 20 22 24 28 32
second our
Plz help nerd's

Answers

Answer:

Median: 17

Q1: 10

Q3: 23

Step-by-step explanation:

2, 4, 9, 11, 12, 16,   18, 20, 22, 24, 28, 32

Median is middle number/average of the 2 middle numbers. 16 + 18 = 34/2 = 17

First/lower quartile/Q1 = middle of lower half of ordered data set

= 9 + 11 = 20/2 = 10

Third/upper quartile/Q3 = middle of upper half of ordered data set

= 22 + 24 = 46/2 = 23

Sorry if this is too late. Posting it will probably save someone else, though.

The area of a circle is 201 square meters. Find
the radius.

Answers

Answer:

8.0meters

Step-by-step explanation:

Given data

Area of cirlce= 201 square meters

The expression for the area is

A=πr^2

Substitute our area

201= 3.14*r^2

r^2= 201/3.14

r^2= 64.01

square both sides

r= √64.01

r= 8.0 meters

Hence the radius is 8.0meters

?% of $10 = $9
What is the percentage

Answers

Answer:

90%

Step-by-step explanation:

there are 100 % if you multiplied 10 by 10 you get that 100 % so multiply 9 by 10 to get 90 and that is your answer

Answer:

$90%

Step-by-step explanation:

90/100 *10.

9*1

$9%

If the diameter is 26 inches, what is the radius

Answers

Answer:

13 inches

Step-by-step explanation:

In any circle, the radius is always half of the diameter.

So, the diameter can be found by multiplying the radius by 2, and the radius can be found by dividing the diameter by 2.

Since the diameter is 26 inches, we can divide this by 2 to get the radius

26/2

= 13

The radius is 13 inches

Answer:

[tex] \bf \huge13[/tex]

Step-by-step explanation:

Given that :

the diameter is 26 inches.

to find :

what is radius .

formulas used :

radius = diameter / 2

explanation :

we know that,

finding the radius

diameter = 26 inches

⟼ radius = diameter / 2

⟼ radius = 26 / 2 inches

⟼ radius = 13 / 1 inches

⟼ radius = 13 inches.

radius is 13 inches .

Please Please Please Please Help ASAP!!!!

Answers

Answer:

A

Step-by-step explanation:

I have alot of questions and I need help with a practice quiz ​

Answers

ok imma help u just it should not be chem

okay! ill help, what subject ??

HOW DO YOU SOLVE THESE DIAMOND PATTERNS!!

Answers

TAKE A PIC OF THEM IN PHOTOMATH

what is the anwser for 7x−x

Answers

Answer:

6x

Step-by-step explanation:

7x - x

6x

A large pizza chain tracks how many pizzas each customer buys per order. The number of pizzas customers buy in any given order has a mean of 2.52.52, point, 5 pizzas and a standard deviation of 1.51.51, point, 5 pizzas.
Suppose that we take random samples of 777 orders from this population and calculate \bar{x}
x
ˉ
x, with, \bar, on top as the sample mean number of pizzas purchased per order. We can assume that the orders in each sample are independent.

Answers

Answer:

unknown; we don't have enough information to determine the shape.

Step-by-step explanation:

khan

Answer:

"Unknown; we don't have enough information to determine the shape."

Step-by-step explanation:

The shape of the sampling distribution is unknown because of the small sample size: the sample size is 7 - it should be at least 30.

HELP DUE IN 10 MINS!

m∠B =??

Answers

Answer:

130°

Step-by-step explanation:

Isosceles trapezoid has congruent angles at each base:

∠C ≅ ∠B, ∠D ≅ ∠Am∠B = m∠C = 130°

helpppppp i don’t know

Answers

Answer:

Step-by-step explanation:

180 = 2x + 10 +3x

170 = 5x

34 = x

m∠B = 3(34) = 102°

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