Solve the system of equations by the substitution method.
x = 3y -4
5x - 2y = 19

Answers

Answer 1

Answer:

g

Step-by-step explanation:


Related Questions

SOMEONE HELP I NEED TO PASS

Answers

number 3 is y - 9 = 3/7 • (x + 6)

Find the coordinate point for D that would make ABDC a rhombus.

coordinate plane with points A 2 comma 2, B 3 comma 4, and C 4 comma 1

(5, 4)
(5, 2)
(5, 3)
(3, 0)

Answers

Answer: The correct answer is (5, 3)

Step-by-step explanation: I got it right on the exam

(5,3) will make a rhombus.

What is Rhombus?

A Quadrilateral with all sides equal but with nonequal diagonals is know as Rhombus.

How to solve?

Let D have coordinate (x,y)

The length of all the sides of the rhombus is equal.

length of AB = [tex]\sqrt{({2-3})^2 + ({2-4})^2} = \sqrt{1+4} = \sqrt{5}[/tex]

Similarly BD = [tex]\sqrt{({3-x})^2 + ({4-y})^2} = \sqrt{25+{x}^2+{y}^2-6x-8y}[/tex] -------------(1)

CD = [tex]\sqrt{({4-x})^2 + ({1-y})^2} = \sqrt{17+{x}^2+{y}^2-8x-2y}[/tex] -------------(2)

We know BD = CD gives,

[tex]\sqrt{17+{x}^2+{y}^2-8x-2y} = \sqrt{25+{x}^2+{y}^2-6x-8y}[/tex]

By squaring both sides and solving we get,

3y - x = 4 ----------------------(3)

Since BCD is a right-angled triangle,

[tex]{BC}^2 = {BD}^2 + {CD}^2[/tex]  

BC = [tex]\sqrt{10}[/tex]

10 = 5 + [tex]\sqrt{17+{x}^2+{y}^2-8x-2y}[/tex]

8  = [tex]{x}^2+{y}^2-8x-2y[/tex] -------------------(4)

solving equation (3) and (4) we get x = 5 and y = 3

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Witch triangle o be an acute angle

Answers

Answer:

An acute triangle

Step-by-step explanation:

A triangle that is 47°

Try It! Guppies 3 Tank 3 has a ratio of 3 guppies for every 4 angelfish. Complete the ratio table to find the number of angelfish in Tank 3 with 12 guppies. Using the information in Example 2 and the table at the right, which tank with guppies has more fish? Angelfish 4​

Answers

Answer:

n

Step-by-step explanation:

Answer:

Step-by-step exp

un abuelo dijo a su nieto mira que curioso tu edad es la quinta parte de la mia pero también es igual a la tercera parte de mi edad menos diez años ¿cuántos años tiene el nieto y el abuelo?​

Answers

¿Puedo conseguir la corona? y el abuelo tiene cincuenta y ocho años

Your bill at a restaurant was for $36. You want to leave a 15 % tip. What would the tip amount be?
$5.40
$6.20
$4.17
$2.40

Answers

$5.40 sorry if i am incorrect

A cuántos metros equivalen 92 kilómetros?​

Answers

Answer:

92000

Step-by-step explanation:

Answer:

92,000

Step-by-step explanation:

1 km=1000 m

So 1 km×92= 92 km

But 1000 m×92= 92,000 m

0.7c-1.5c c=13 d=3 ...............................

Answers

Answer:

4.6

Step-by-step explanation:

Subtract 3x^2+8x3x 2 +8x from -9x^2+3x-8−9x 2 +3x−8.

Answers

Answer:

x =(-8+√-32)/6=(-4+2i√ 2 )/3= -1.3333+0.9428i

Step-by-step explanation:

I don't understand exponents well best answer gets brainly ​

Answers

Answer:

i think its 125

Step-by-step explanation:

since 5^7 = 78,125 and 5^4 = 625

then it would be 78,125

                           ----------  = 125

                             625

sorry if im wrong ;-;

A Redbox movie costs $1.50. Redbox charges $1 per day for late movies. If Henry's movie is 3 weeks late, how much money does he owe for his movie?

Answers

Answer:

$22.50

Step-by-step explanation:

3 weeks = 21 days

21 × 1 + 1.50

21 + 1.50

22.50

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

105

Step-by-step explanation:

A straight line is 180 degrees so 180-75=105

Answer:

x= 105 degrees

Step-by-step explanation:

We know that the sum of x and 75 degrees is equal to 180 degrees.

So that means that x= 180-75 or x=105 degrees


Katy invests £200 000 in a savings account for 4 years. The account pays compound interest
at a rate of 1.5 % per annum.
Calculate the total amount of interest Katy will get at the end of 4 years

Answers

Answer:

212272.71

Step-by-step explanation:

we have the following equation (for interesting that compound yearly)

PV(1+i)^n

200000(1+.015)^4

212272.71

The total amount of interest Katy will get at the end of 4 years is £12,272.71

Compound interestCompound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on principal plus interestCompound interest refers to the phenomenon whereby the interest associated with a bank account, loan, or investment increases exponentiallyrather than linearlyover time.Compound interest (or compounding interest) is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods

How to solve this problem?

The steps are as follow:

Given:

p = £200 000

r = 1.5%

n = 4 years

Formula to find Amount (A) after 4 years will as follow:

A = p(1+r/100)ⁿ

A = 200000(1+1.5/100)⁴

A = 212,272.71 £

The compound interest is given by:

C.I. = A - p

C.I. = 212,272.71 - 200,000

C.I. = £12,272.71

So the  total amount of interest Katy will get at the end of 4 years is £12,272.71

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The number of tadpoles in a particular pond on March 1st of any particular year is Pn the population is modelled by the interactive formulae
The population is modelled by the interactive formulae Pn+1 = k(Pn+60)

Answers

Answer:

get them googel

Step-by-step explanation:


anyone?............

Answers

[tex] \frac{132 }{2?} = 66[/tex]

What is The least common denominator of 11/12, 7/9, and 2/3

Answers

Answer:

261?

Step-by-step explanation:

LCD = 261

Equivalent Fractions with the LCD

11/29 = 99/261

7/9 = 203/261

2/3 = 174/261

pls help soon make it in like 3 mins or less pls

Answers

The answer is 52 if your adding

Plz, Help me! I will give a point if you help answer! with 5 star rating, Thanks, and Brainliest!

Answers

Answer:

-4/10+(-7/10)= -1 1/10(the bottom left one)

Step-by-step explanation:

starts from 0 and subtract 4/10.  From there you subtract 7/10 more.


Order of operations. Need to find the unknown number. Help?

8 + 2 x 5 = m
9 - 7 + 2 = k
7 x 8 - 6 = g
16 + 4 divide 2 = s
12 - 6 divide 2 = y
36 divide 6 + 13 = f

Answers

Answer:

m = 18

k = 4

g = 50

s = 18

y = 9

f = 19

Step-by-step explanation:

M = 18
K = 4
G = 42
S = 18
Y = 9
F = 19

Giving brainliest I only have 1 try please give out correct answer:)

Answers

I think yes. If not my bad.
It’s not an orderly pair

answer, show work, due today

Answers

Answer:

60%

Step-by-step explanation:

13.5/22.5

Which equation is not a polynomial.

A.-sqrt(2)
B.-3x^2+xy-2y^2
C.x^/y +3xy -2y^2/x
D.sqrt(2a^2)-4xy-2x^2y^2
E.5x^-2 +x^-1 y-2

Answers

A. -sqrt(2)

Explanation:
there are no degrees, etc

A jumping spider hunts for its
food. When it gets close to its
prey, it jumps into the air and
pounces on it.

A jumping spider can jump
40 times its body length. One
jumping spider is 2 centimeters
long. How far can it jump?

Answers

80 inches or feet.. I think you are suppose to multiply 40x2 sorry if im wrong

Solve for X
2x - 8 = 30

Answers

Answer:

x=19

Step-by-step explanation:

2x - 8 = 30

get x by itself by adding 8 to both sides

2x=38

divide by 2

x=19

math nation section 7

Answers

which question do you need help with?

Answer:

I don't understand the ques?

Step-by-step explanation:

88=66+7-5x89 this question makes no scence

Answers

Answer:

x = -3/89

Step-by-step explanation:

If you make x dollars per hour and you work 8 hours, how much money will you make?

Answers

You would make X amount of dollars. I can’t give you an exact amount of money because you didn’t tell me how much you make per hour!

It’s due late tonight can some pls help me pass

Answers

A
She added 2 every time thats why the output keeps increasing

Find the degree of the monomial.
8b^7c^2
The degree of the monomial is?

Answers

Answer:

49c2

Step-by-step explanation:

Lauren has a purse full of dimes and quarters. She has 25 less dimes than quarters. If she has a total of $10.45, which system of equations would she write to find the number of dimes, d and quarters, q?​

Answers

Answer:

D(0.10) + Q(0.25) = 10.45

Q = D + 25 (or Q - D = 25)

Step-by-step explanation:

D = number of dimes

Q = number of quarters

D(0.10) + Q(0.25) = 10.45

Q = D - 25 (or D - Q = 25)

We multiply the number of dimes she has by $0.10, because that is the worth of each dime, and we multiply the number of quarters she has by $0.25 because that is the worth of each quarter. We then set that equal to $10.45, the overall value of her coins.

Because she has 25 less dimes than quarters, the number of dimes she has should be 25 less than the number of quarters she has. So the number of quarters she has should be equal to the number of dimes she has plus 25.

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