Solve the system using substitution.
2x = 5y + 14
x = 5y

Answers

Answer 1

Answer:

y = 2.8x = 14

Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

10y = 5y + 14

First, we need to get all the variables on one side of the equation, so we subtract 5y.

5y = 14

Divide by 5

y = 14/5 or 2 4/5 or 2.8

Now for the x part.

2x = x + 14

Subtract 1x

x = 14

Now we check our answer.

2(14) = 5(2.8) + 14

28 = 14 + 14

28 = 28

Because 28 equals 28, our solutions are correct.


Related Questions

Alice has total of 12 dimes and nickels she has 2 more nickels than dimes .which equation represents the given problem situation

Answers

12+2 to find the amount of nickels, (12•.10) + (14•.05) to find the amount of money Alice has.

Answer

A i think

Good luck have an amazing day

Calculate the slope represented by the table.

Answers

Answer:

y=2x-3

Step-by-step explanation:

I hope that helped

{(-1, 1), (1, 1), (-2, 4), (2, 4)}
Is the relation a function and why?

Answers

Step-by-step explanation:

What does C equal? C/11 = 30/120

Answers

Answer:

C=2.75

Step-by-step explanation:

C/11=30/120

30/120=.25

120*.25=30

11*.25=2.75

C would be 2.75

Reason

Math

Type the correct answer in the box. Use numerals instead of words. What value of x makes this equation true? -2x + 3 = -15 x =

Answers

Answer:

x=9

Step-by-step explanation:

plug in the number 9

-2(9)= -18

-18+3= -15

A.
30°
30°
70%
70°
50°
30°
50°
30°

Answers

Answer:

What are you supposed to do

Step-by-step explanation:

I can help

Answer:

A

Step-by-step explanation:

the only option is A

Which number, when rounded to the nearest tenth, is 43.6?
PLZ ANSWER ASAP

Answers

Answer:

43.6

Step-by-step explanation:

Answer:

Any number from 4.55 to 4.65......

WILL MARK YOU BRAINLIEST

Answers

Answer:

PART 1

1) BC = AD = 16.4

2) CD = AB = 13.9

because JKMN is a parallelogram

=> KJ = ML

<=> y + 3 = 2y - 1

<=> y = 4

we also have: KL = JM

<=> 3x + 5 = 4x

<=> x= 5

3) with y = 4 => JK = 4 + 3 = 7

4) with x = 5 => KL = 3.5 + 5 = 20

PART 2

5) W = Y = 112⁰

6) Z = 180⁰ - 112⁰ = 68⁰

ABCD is a parallelogram

=> A + B = 180⁰

<=> 2y + 4y = 180

<=> y = 30

we also have:

C + D = 180⁰

<=> x + 5x - 180 = 180

=> x = 60

7) with y = 30 => A = 2.30 = 60⁰

8) with x = 60 => D = 5.60 - 180 = 120⁰

PART 3

9) EG = 2.HG = 2.14 = 28

10) DH = 1/2.DF = 20/ 2 = 10

QRSP is a parallelogram

=> 2y + 2 = 2x

x + 9 = 2y

=> x = 11

y = 10

11) with x = 11 => RT = 11 + 9 = 20

12) QS = 2.ST = 2.2.11 = 44

2f - 4e + 4e = 2f true or false

Answers

Answer:

True.

Step-by-step explanation:

Since 4e cancels out itself, the answer remains 2f.

*Note: I am not entirely sure this is correct, sorry if it isn't *

i think it’s true i may be wrong but im pretty sure that it’s true

work out an estimate for sqrt 63.6 x 102.3

Answers

Answer:

81

Step-by-step explanation:

Round 63.6 to 64

Round 102.3 to 102

Multiply 64 × 102=6528

Square root 6528 to get 80.796

Round 80.796 to 81

The estimate square root value of 63.6 x 102.3 is 81

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be A

The value of A is

A = square root of 63.6 x 102.3

A = √63.6 x 102.3

Now , the value 63.6 can be approximated as 64

And the value 102.3 can be approximated as 102

So , the equation becomes

A = √ ( 64 x 102 )

A = 8 x √102

A = 8 x 10.099

A = 80.79

The value of A can be approximated as

A ≈ 81

Therefore , the value of A is  81

Hence , The estimate square root value of 63.6 x 102.3 is 81

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Hi! Can you please help me with this question? Thanks!

Answers

Answer:

x ≤ 2

Step-by-step explanation:

if it is a close circle you use ≤  ≥

if it is an open circle you use < >

if the line is going to the left it is less than

if the line is going to the right it is more than

Answer:

the second one, x ≤ 2

Step-by-step explanation:

since the graph is going to less than two and there is big shaded circle in 2 which means "less than or equals to 2 " is the answer

Ian got a paycheck that has a gross pay of $1121 and a net
pay of $684.26. What percent of pay was taken out for
taxes and other deductions?
A. 63.83%
B. 36.17%
C. 38.96%
D. 61.04%

Answers

Answer:

1121 - 684.26 = 436.74

436.74/1121 = 0.38959857

0.38959857 X 100 = 38.96%

Step-by-step explanation:

change divided by original amount, multiplied by 100

Help ASAP Please I’ll give Brainly award

Answers

Answer:

176

Step-by-step explanation:

trust

The answer is 176 bro...good luck

Anyone know the answer, thank you

Answers

Can someone help me with these please
CP has coordinates C(-2, -2) and P(2,-4).
Standard
Determine the coordinates of C'P' after a dilation .
centered at the origin with a scale factor
of 12.
Be sure to label C' and P' clearly in your answer.

Answer:

I think it C

Step-by-step explanation:

if im wrong please tell me

hope this helps

Which number is between 1.2 and 2.3

A. 0.123
B. 0.132
C. 1.02
D. 1.23
D. 1.32​

Answers

Answer:

D. 1.23, (or D. 1.32?)

Step-by-step explanation:

from 1.2 to 2.3 the decimal points are:

1.2 - 1.3 - 1.4 - 1.5 - 1.6 - 1.7 - 1.8 - 1.9 - 2.0 - 2.1 - 2.2 - 2.3

A. cant work because it comes before 1.2

B. cant work because it also comes before 1.2

C. Cant work because all though its in the ones place, the decimal is too small

D. Can work because it comes after 1.2, and before 2.3 Same thing for the other letter D you put, because it is between the numbers 1.2 and 2.3

D is the correct answer even tho somebody told you already

13. On a game board, one peg has coordinates (-5,3), and another peg has coordinates
(1,-2). What is the distance between the two pegs? Round your answer to the
nearest tenth.

Answers

Answer:

-3.2

Step-by-step explanation:

Triangle DEF, shown below, is reflected over the y-axis to form triangle D'E'F'. What are
the coordinates of F'?

Answers

Answer:

The answer is -6, -4

Step-by-step explanation:

The coordinates of F' are (-6, -4).

What is Translation?

Each point in a figure is moved the same distance in the same direction using a type of transformation known as translation.

A transformation known as a translation involves moving each point in a figure uniformly and in the same direction.

Given:

Triangle DEF is reflected over the y-axis to form triangle D'E'F'.

now, we have the rule for reflection over y axis

P( x, y)-----> P' (-x, y)

Then the coordinates of D'E'F are

D(4, 1)---------> D'(-4, 1)

E(8, -3)---------> E'(-8, -3)

F (6, -4)----------> F'(-6, -4).

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For each hour he babysits, Anderson earns $1 more than half of Carey's hourly rate. Anderson earns $6 per hour.
Which equation can be used to solve for Carey's hourly rate, c?
oc+ 1 = 6
o şc-1= 6
+63
oc-6 = 1
- 6 = 1

Answers

The answer is:  

2c+1=6

If Awo was caught vaping what would her punishment be?

Answers

If she would be caught depending on where she is at it could be a fine that she has to pay

depending on her age

Quinn has solved 20 problems on the math quiz. If this is 80% of the problems on the quiz, how many more problems does he have left to solve

Answers

Answer:

5 problems

Step-by-step explanation:

20=%80

10=%40

5=%20

100-80=20

20+5=25

5 problems left

9. Angeline bought s yards of satin fabric priced at $8.09 per yard
and c yards of cotton fabric priced at $3.79 per yard.
a) What expression could you use to determine the total cost of
the fabric?

Answers

Answer:

The expression Y = 8.09s + 3.79c  can be used to determine the total cost of the fabric.

Step-by-step explanation:

Given that:

Price per yard of satin fabric = $8.09

Yards of satin fabric bought = s

Price per yard of cotton fabric = $3.79

Yards of cotton fabric bought = c

Let,

Y be the total cost.

Y = 8.09s + 3.79c

Hence,

The expression Y = 8.09s + 3.79c  can be used to determine the total cost of the fabric.

Write 7√5 using rational exponents.

Answers

Answer:

7*(5)^0,5

Step-by-step explanation:

The value of number 7√5 in form of rational exponents will be 1561/1000.

What is Rational number?

A number which can be written in the form of fraction p / q , where q is non zero, are called Rational numbers.

Given that;

The number is,

⇒ 7√5

Now,

Since, The number is,

⇒ 7√5

Solve as;

⇒ 7√5 = 7 × 2.23

           = 15.61

           = 1561/100

Thus, The value in rational exponents = 1561/1000

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Express the ratio below in its simplest
form 3:6:6

Answers

Answer:

1:2:2

Step-by-step explanation:

To simplify this ratio, you need to find a common factor to divide by. In this instance, that would be 3.

help me please and thank you ​

Answers

Answer:

the answer is 7

Step-by-step explanation:

Which of these situations is represented by 24 divided by 6

Answers

Answer:

B. got the perfect situation

Step-by-step explanation:

here

24flowers are distributed in 6 vase equally

that mean

[tex] \frac{24}{6} [/tex]

this may help you (:


Please help me I’m going to get beat with a broom please I’m begging

Answers

Answer:

A. 3 dimes and 1 Penny

Beat your parents with a broom instead!

Can someone please help me with this and make sure it’s correct

Answers

The answer is: B
Explanation: 8 is fixed, not related to the number of marbles.

anyone able to help out ?

Answers

Answer:

The value of x is 1

Step-by-step explanation:

Let us solve the question

Δ PQR ≈ Δ FGH

→ From similarity, then their corresponding sides have an equal ratio

∴ [tex]\frac{PQ}{FG}[/tex] = [tex]\frac{QR}{GH}[/tex] = [tex]\frac{PR}{FH}[/tex]

∵ PQ = 3, QR = x + 3, PR = 2

∵ FG = 6, GH = 6x + 2, FH = 4

→ Substitute them in the ratios above

∴ [tex]\frac{3}{6}[/tex] = [tex]\frac{x+3}{6x+2}[/tex] = [tex]\frac{2}{4}[/tex]

→ By using cross multiplication between the first two ratios

∵ 3 × (6x + 2) = 6 × (x + 3)

∴ 3(6x + 2) = 6(x + 3)

∴ 3(6x) + 3(2) = 6(x) + 6(3)

18x + 6 = 6x + 18

→ Subtract 6x from both sides

∵ 18x - 6x + 6 = 6x - 6x + 18

∴ 12x + 6 = 18

→ Subtract 6 from both sides

∵ 12x + 6 - 6 = 18 - 6

∴ 12x = 12

→ Divide both sides by 12

x = 1

Please help me please please !

Answers

The answer is 360 because LxWxH

What kind of lines will have no solution?
a) The same line
b) Perpendicular lines
c) Parallel lines
d) Lines that cross

Answers

Answer:

The parallel line.............

Answer:

C. parallel lines

Step-by-step explanation:

parallel lines have no solutions

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