Solve the system of equations by elimination. Explain your reasoning or show your work.
Answers
9514 1404 393
Answer:
(x, y) = (5, 4)
Step-by-step explanation:
Subtracting the second equation from the first eliminates the x term.
(4x +6y) -(4x +2y) = (44) -(28)
4y = 16 . . . . simplify
y = 4
Using the second equation to find x, we have ...
4x +2(4) = 28
x + 2 = 7 . . . . . . divide by 4
x = 5 . . . . . . . . . subtract 2
The solution is (x, y) = (5, 4).
Related Questions
The cook took out 54.8 grams of butter, she then found out that she took out 6.9 grams of butter more than she need. How much butter did she need?
Answers
X f(x)
-2 -1/200
-1 -1/20
0 -1/2
1 -5
2 -50
Answers
9514 1404 393
Answer:
f(x) = -1/2·10^x
Step-by-step explanation:
The y-intercept is -1/2.
The common ratio is (-1/20)/(-1/200) = 10, so the exponential function can be written as ...
f(x) = -1/2·10^x
Joey has 10 packs of gum. 1/5 of his pack are spearmint. How many of his packs are spearmint?
A. 2 packs
B. 10 packs
C. 1 pack
D. 5 packs
Answers
Answer:
A. 2 packs
Step-by-step explanation:
Round 138.867545518 to 4 decimal places.
Answers
The Answer will be 138.8675
In the figure below, if sin x= 5/13, what are cos x and tan x? PLZ HELP FOR THE LOVE OF GOD AND WHTS GOOD IN THE WORLD HELPPP
Answers
Answer:
Step-by-step explanation:
cos²x = 1-sin²x = 1-(5/13)² = 144/169
cosx = √(144/169) = 12/13
tanx = sinx/cosx = (5/13)/(12/13) = (5/13)×(13/12) = 5/12
10 + 25
The expression represents a quadraticy polynomial with
terms. The constant
term is
the leading term is
and the leading coefficient is
Answers
Answer:
(x+5)^2
Step-by-step explanation:
(x+5)^2 Using the foil method 5+5=10 and 5x5=25
Determine whether each statement below is true or false. Justify each answer. a. The equation Axb is referred to as a vector equation. Choose the correct answer below. A. False. The equation Axb is referred to as a matrix equation because A is a matrix. B. True. The equation Axb is referred to as a vector equation because A is constructed from column vectors. C. True. The equation Axb is referred to as a vector equation because it consists of scalars multiplied by vectors. D. False. The equation Axb is referred to as a linear equation because b is a linear combination of vectors.
Answers
-90 is greater than or equal to -5(k-3)
Answers
Answer:
Step-by-step explanation:
equal
I think hope this helps!
Which fraction equals 4
A-8/2
B-8/4
C-2/8
D-4/8
Answers
Answer:
it would be A
Step-by-step explanation:
divide it and that is -4 im not sure if u meant -4 or positive 4 other than that you cant get any other 4
Answer:
A-8/2
Step-by-step explanation:
A menu has three meat choices, three vegetable choices and two
desserts. How many ways can you choose your dinner?
Answers
Answer:
18 ways
Step-by-step explanation:
The computation of the number of ways that could be choose your dinner as follows:
= 3 meat choices × 3 vegetable choices × 2 desserts
= 18 ways
By multiplying all the three things we can determined the number of ways
Write the word sentences as an inequality.
A number k is less than 10.
An inequality that represent this word sentences is?
Answers
Answer:
k<10
Step-by-step explanation:
Can you help me do this or you can write it on a piece of paper to help as well!
Answers
(I cannot be bothered to draw)
Find the value of x in this triangle
Answers
Answer:
No you find it jkSum=1802x+2x+x=1805x=180x=36 Two bottom angle are similar 2(36)= 72 The last angle is 36What is the solution to the system of equations?
y =2/3 x + 3
x = -2
Answers
Answer:
The answer is 5/3
Step-by-step explanation:
hope this helped
HELP DICE MATH EASY 12 POINTS
Answers
Answer:
1/6
Step-by-step explanation:
There’s 6 sides on a die
Equivalent expression of d+0.38d
Answers
Answer:
0.38 x d + d
Step-by-step explanation:
the answer for ur question is
d+0.38d
1.38d
you deposit 3,800 in an account with an annual interest of 5.2% for 20 years
Answers
First, convert R percent to r a decimal
r = R/100
r = 5.2%/100
r = 0.052 per year,
Then, solve our equation for A
A = P(1 + r/n)nt
A = 3,800.00(1 + 0.004333333/12)(12)(20)
A = $ 10,726.90
Darius deposits $600 into a simple interest savings account. After a year, the account balance will be $615. What is the interest rate?
Write the equation AND solve.
Answers
Answer:
savings account. After a year, the account balance will be $615. What is the interest rate?
Write the equation AND solve.
Step-by-step explanation:
savings account. After a year, the account balance will be $615. What is the interest rate?
Write the equation AND solve.
Crystal receives a monthly salary of $3,980. Find her earnings per year and earnings per week.
Answers
Answer:
per year: $47,760 per year
per week: $918.46 per week
Step-by-step explanation:
$3980 per month x 12 months = $47,760 per year
$47,760 per year divided by 52 weeks = $918.4615384615
Since we're talking money, let's round off our answer to the hundredths place ($918.46 per week)
Double check our answer (918.46 x 52 = 47,760) great!
Answer:
47760 per year
918.46154 per week
Step-by-step explanation:
$3,980 x 12= $47760
$47760/52= $918.46154
Which sentence from the text best supports the narrator’s view of Paul as a giant of a man?
A.
“Feeding Bunyan’s crews of ravenous loggers was a big job.”
B.
“Paul dealt with the challenge by digging down to find the tops of the tall pine trees and lowering his loggers to chop logs.”
C.
“Driving logs upstream is impossible, but an impossible job never stopped Paul.”
D.
“To his surprise, when he tried to move the logs, he discovered the lake had no outlet to the river.”
Answers
Answer:
The answer is B
Step-by-step explanation:
I did the test and got it right
you buy 4 pounds of beef at a price of $5.89 per pound. select the two expressions that you could use to determine the total cost you paid.
Answers
Answer: plus and times
Step-by-step explanation: You can do 5.89x 4 or
5.89+5.89+5.89+another 5.89 so thoes are your two answers
determine the relationship between the measures of the given angles
Answers
∠PTV > ∠VPT. This is because the angle opposite to the larger side is greater.
What are angles and dihedral angles? What is equation modelling? In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in the plane that contains the rays. Angles are also formed by the intersection of two planes. These are called dihedral angles.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.Given is a 2 - D image as shown in the question.
It can be concluded that ∠PTV > ∠VPT. This is because the angle opposite to the larger side is greater.
Therefore, ∠PTV > ∠VPT. This is because the angle opposite to the larger side is greater.
To solve more questions on equations, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ2
What is the volume of the prism?
Answers
Answer:
VOLUME OF PRISM = L X W X H (or) LWH
so, L = 2 in
W = [tex]2\frac{1}{4}[/tex] in (or) [tex]\frac{9}{4}[/tex] in
H = 4 in
volume = 2 x [tex]\frac{9}{4}[/tex] x 4 = 18 in³
Brandon gets a settlement from a car accident. The other driver will be paying him $2000 each month for the next 5 years to cover your injury costs.
Answers
Answer:
That would be $120,000 at the end of the 5 years.
Step-by-step explanation:
$2,000 x 12 months = $24,000
$24,000 x 5 years = $120,000 total
Use a system of linear equations with two variables and two equations to solve. A number is 9 more than another number. Twice
the sum of the two numbers is 30. Find the two numbers. Let the two numbers be represented by x and y. Let y represent the
larger number. Write your answer as an ordered pair (x, y).
Answers
9514 1404 393
Answer:
(x, y) = (3, 12)
Step-by-step explanation:
Using the given variable definitions, we can write the equations ...
y = x + 9
2(x +y) = 30
__
Solving the second equation for y, we have ...
y = 15 -x
Substituting this into the first equation gives ...
15 -x = x +9
6 = 2x . . . . . . . . . add x-9
3 = x . . . . . . . . . . divide by 2
y = 3+9 = 12 . . . . substitute into the first equation
The numbers are (x, y) = (3, 12).
In an urban area, 31% of dog owners pay for someone to walk their dogs. Morgan asks a random sample of 50 dog owners in this urban area if they pay for someone to walk their dog. What is the probability that more than 30% of the owners in the sample pay for someone to walk their dog?
A. 0.439
B. 0.519
C. 0.561
D. 0.586
Answers
Answer:
c 0.561
Step-by-step explanation:
did the test on edge
The probability that more than 30% of the owners in the sample pay for someone to walk their dog is option c. 0.561.
Calculation of the probability:Since 31% of dog owners pay for someone to walk their dogs. Morgan asks a random sample of 50 dog
So
= P> ( 0.30 - 0.31) / √0.31 (1 - 0.31)/ 50
= P(z > - 0.1530)
= 0.5608
= 0.561
Hence, the option c is correct.
learn more about probability here: https://brainly.com/question/24760080
If the circumference of the circle above is 25.12 units, what is the area? (Use 3.14 for T.)
Answers
Answer:
50.24 units2
Step-by-step explanation:
For each part, write the equation that represents the line in slope-intercept form (y = mx + b) and standard form (ax + by = c where a, b, and c are integers and a is not negative).
Answers
Answer:
The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept
Step-by-step explanation:
Answer:
Step-by-step explanation:
slope-intercept equation for graph a: y = -x + 1
standard-form equation for graph a: x + y = 1
:::::
Slope of line through (0,-2) and (3,4) = (4-(-2))/(3-0) = 2
Slope-intercept equation for graph b: y = 2x-2
Standard form: 2x-y = 2
Which fraction represents the shaded part of the grid?
Answers
Answer:
30%
Step-by-step explanation:
Answer:
3 tenth or 3/10 or 30%
Step-by-step explanation:
all works :)
please help meeeeeeeeeee
Answers
Answer:
check explanation for answers
Step-by-step explanation:
ratios are pretty much just simplified fractions
so just turn the numbers into a fraction and simplify them!
trumpets/violins are 5:3
flutes/clarinets are 17:13
trombones/trumpets are 2:5
violins/total instruments are 12:85
