1. Consider the following system of linear equations.
1
5
y =
5x+y
4 5
3*-3y = 3
2
Part A: What property/properties can be used to write an equivalent
system?
Answers
Answer:
2
Step-by-step explanation:
Related Questions
Is the following relation a function?
Relation:
X Y
-4 2
-2 1
0 0
1 2
The domain:
{-2,-4, 0, 1 }
The range:
{ 0, 1, 2 }
Answers
You buy five books that are equal in
price and a DVD for $8. Your total
comes to $26.50. Write an equation
that would help you determine the cost
of one book.
Help!
Answers
Answer:
5x+8=26.50
Step-by-step explanation:
Because the books are equal in price, we can use x to represent the price of the books and 5 to represent the amount, so it would be written as 5x. Then we add 8 because that's the price of the one DVD. It tells the total is 26.50, so the full equation written would be 5x+8=26.50
Need help on this, please
Answers
Answer: 30 something?
Step-by-step explanation:
What scale factor was used to produce the image?
A. 49
B. 18
C. 7
D. 1
Answers
C. 7
You count the boxes along the green line.
5. a) Determine the total surface area of
this tent, including the floor, in order to
estimate the amount of canvas needed
to construct it.
b) What is the volume of the tent?
13m
22 mm
13.5 m
3 m
I
4 m
4 m
Unit 6
Answers
Step-by-step explanation:
Radius of the conical part = radius of cylindrical part r=
2
3
m
Slant height of the cone l=2.8 m
Height of the cylinder, h=2.1 m
Canvas needed to make the tent = Curved surface area of the conical part + curved surface area of the cylindrical part.
Curved surface area of conical part = πrl=
7
22
×
2
3
×2.8=13.2
Curved surface area of cylindrical part =2πrh=2×
7
22
×
2
3
×2.1=19.8
Total surface area = Curved surface area of conical part + Curved surface area of cylindrical part
=13.2+19.8=33 m
2
Cost of 1 m
2
canvas = Rs. 500
Cost of 33 m
2
canvas =33×500=16500
Therefore, it will cost Rs. 16500 for making such a tent.
If x=−1 and y=−3, then 5(x2−7+y)=
Answers
Answer:
-60
Step-by-step explanation:
5(-1 times 2 -7 -3) = 60
The value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].
Important information:
The given expression is [tex]5(x^2-7+y)[/tex].The given values are [tex]x=-1,y=-3[/tex].Value of expression:Substitute [tex]x=-1,y=-3[/tex] in the given expression.
[tex]5((-1)^2-7+(-3))=5(1-7-3)[/tex]
[tex]5((-1)^2-7+(-3))=5(-9)[/tex]
[tex]5((-1)^2-7+(-3))=-45[/tex]
Therefore, the value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].
Find out more about 'Value of expression' here:
https://brainly.com/question/556937
6th grade math i mark as brainliest
Answers
yo can you help me with this
Ahoy there, matey! Our pirate ship had 5/6 of a treasure chest full of gold. Then we plundered an enemy ship and took their 3/8 of a treasure chest full of gold. How many treasure chests full of gold do we have now?
Answers
Answer:
1 5/24
Step-by-step explanation:
5/6+3/8
find common denominator: 24
5/6=20/24 3/8=9/24
add:
20/24+9/24=29/24
simplify:
29/24=1 5/24
hopefully this helps :)
Answer:
[tex]\frac{11}{24}[/tex]
Step-by-step explanation:
jason sees that 2 out of every 5 cars that passes by his house has the windshield wipers on. What is the probability that that of the next 4 cars that pass his house, 2 will have their windshield wipers on?
Answers
if I would have 160$ and was discounted by 75 percent and if used a PROMO CODE and it gave me 10 percent off how much would I have
Answers
Answer:
10 percant off how much would i have
a car was purchased last year for $28,500. now its value is $25,510. at what rate is the car's value depreciating each year?
Answers
Answer:
The car's value is depreciating by $2,990 per year.
Step-by-step explanation:
To solve this problem, we just need to subtract the cars value this year, or $25,510, from the car value of last year, or $28,500.
28,500 - 25,510 = $2,990
Since the car value was $2,990 more just last year, the car's value is depreciating by $2,990 per year.
Hope this helps! :D
Haley brought 4 boxes of candy canes at the santa store if each box of candy canes cost $2.65 and she paid with a twenty dollar bill how much change should get back
Answers
Answer: $9.04
Step-by-step explanation:
one box is $2.65 and $2.65x4=$10.09 and if there is a $20.00 then $20.00-$10.09=$9.04. :P
A small town has two local high schools. High School A currently has 500 students and is projected to grow by 80 students each year. High School B currently has 700 students and is projected to grow by 30 students each year. Let AA represent the number of students in High School A in tt years, and let BB represent the number of students in High School B after tt years. Write an equation for each situation, in terms of t,t, and determine how many students would be in each high school in the year they are projected to have the same number of students.
Answers
The equation that represent the number of students in High School A at time t is AA = 500 + 80tt.
The equation that represent the number of students in High School B at time t is BB = 700 + 30tt.
The number of students when both schools would have the same number of students is 820.
When would the school have the same number of students?
The equation that represent the number of students in High School A :
current number of students + (number of years x rate of increase)
AA = 500 + 80tt.
The equation that represent the number of students in High School B at time t is:
current number of students + (number of years x rate of increase)
BB = 700 + 30tt.
When the schools would have the same number of students, the two equations would be equal:
700 + 30tt = 500 + 80tt
700 - 500 = 80tt - 30tt
200 = 50tt
tt = 200 / 50
tt = 4
Population = 500 + (80 x 4)
500 + 320 = 820
To learn more about linear equations, please check: https://brainly.com/question/26434260
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An expert diver is looking for a particular species of fish along the coastline. He dives 22 feet below the surface of the ocean. Then he dives down 7 feet and down another 4 feet before he finds the species of fish he is looking for. What was the depth at which the diver finds the fish
Answers
Answer:
-55
Step-by-step explanation:
FIND THE EQUATION OF THE QUADRATIC FUNCTION GIVEN ITS ZEROS. 2.)11/3,-11/3
Answers
Answer:
they will have the same aboulsute value.
Step-by-step explanation:
because the abouslute value can not be negitive
it costs $42 for 7 staplers. what is the unit rate for the stapler?
Answers
Answer:
The answer is 6
Step-by-step explanation:
42 divided by 7=6
Plz help. Will give brainliest to best answer
Answers
Answer:
9
Step-by-step explanation:
11cos35
Answer:
x = 9.0
Step-by-step explanation:
cos(35) = [tex]\frac{x}{11}[/tex]
11cos(35) = x
x = 9.0
Please please please help me with this !!!!!!
Answers
Answer:
Measure of angle T is 67.5 and measure of angle V is 22.5
Step-by-step explanation:
Solve for x
All the angles in a triangle equal 180
So,
3x + x +90 is 180.
Subtract 90 from both sides
3x+x = 90
Add like terms
4x = 90
Divide by 4 to solve for x
x = 22.5
Now substitute 22.5 in for 3x and x
Measure of angle T is 3(22.5) = 67.5 and measure of angle V is 22.5
What is the area of this triangle?
Answers
There are 82 candies. 4 candies more are added. How many are there total?
Answers
Answer:
86
Step-by-step explanation:
82+4=86
Answer:
86 candies
Step-by-step explanation:
Just do 82+4= 86 candies
Which graph shows the solution for d?
Answers
Answer:
is there a picture????
–2.5 + (–3.5)
Which number line shows the sum?
A.
B.
C.
D.
Answers
Answer:
The correct answer is C.
Step-by-step explanation:
Because –2.5 + (–3.5) = -6, it means that the red line goes from -6 to -3 1/2 to 0. so that gives us Answer choice C
The population of a town is 9,000, and it grows at a rate of 4.6% per year. What will the population be in 10 years ?
Answers
Answer:
13410
Step-by-step explanation:
So, first we find 4.6% of 9000
9000 x .046 = 414
Then we multiply the 414 by 10 because they gain 414 people every year and we need to find how many people after 10 years
414 x 10 = 4140
now add 4140 and 9000
Answer = 13140
what's the difference between 5 and
[tex]2 \sqrt{5} [/tex]
Answers
the difference between these two are:1. 5 is a rational number but 2√5 is an irrational number.
Addison is going to invest in an account paying an interest rate of 3.1% compounded continuously. How much would Addison need to invest, to the nearest dollar, for the value of the account to reach $910 in 18 years?
Answers
Answer: $521
Step-by-step explanation:
Write the equation of the line that passes through the points (7,-8) and (2, -8).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answers
Answer:
it has zero slope because it is a horizontil line
Step-by-step explanation:
someone answer these for me-
Answers
2.) A
lmk if you need me to explain
Answer:
First question is D, (2/3)x+7
Second is A, m = (-1/3)
Step-by-step explanation:
parallel lines have the same slope. m=slope.
perpendicular lines are opposite sign reciprocals. slope is 3, perpindicular slope is (-1/3)
Let the area of a rectangle in square metres is
[tex] {x}^{2} + 13x + 42[/tex]
How much longer is the length than the width of the rectangle?
A. 7m
B. 8m
C. 1m
D. 6m
Answers
Answer:
C)1m
Step-by-step explanation:
So the length and width is
x²-13x+42=0
(x-7)(x-6)=0
x-7=0
x-6=0
x=7 (length)
x=6 (width)
So the difference between length and width is
=7-6
=1m
Answer:
[tex]C.1\ m[/tex]
Step-by-step explanation:
[tex]We\ are\ given\ that,\\Area\ of\ the\ rectangle=x^2+13x+42\\Hence\ lets\ factorize\ this\ area\ completely:\\x^2+13x+42\\=x^2+6x+7x+42\\=x(x+6)+7(x+6)\\=(x+7)(x+6)\\Hence,\\Area\ of\ the\ rectangle=(x+7)(x+6)\\As\ we\ know\ that,\\Area\ of\ a\ rectangle=Length*Width\\Area\ of\ a\ rectangle=lw\\Here,\\lw=(x+7)(x+6)\\Hence,\\l=(x+7),w=(x+6)\ or\ l=(x+6),w=(x+7)\\But\ generally\ the\ length\ of\ a\ rectangle\ is\ greater\ than\ it's\ width.\\Hence\ the\ first\ solution\ is\ suitable\ here.\\[/tex]
[tex]Hence,\\l=(x+7),w=(x+6)\\Hence\ in\ order\ to\ find\ the\ difference\ between\ the\ length\ and\ width\\ we\ must\ perform\ the\ operation :l-w\\Hence,\\(x+7)-(x+6)\\=x+7-x-6\\=1\ m[/tex]
What is the measure in degrees for the central angle of a circle whose radius is 8 cm and intercepted arc length is 5.6 cm?
Answers
Answer:
0.7
Step-by-step explanation:
can someone help me with this?
Answers
Answer:
1 is C and 2 is B
Step-by-step explanation: