y=3x-4
y=2x+1
what would be the first step to solving system
Answers
Answer:
Step one. Equate the two right hand sides to each other.
3x - 4 = 2x + 1
Step-by-step explanation:
Well one of the things you could do is graph the two equations. The intersection point is the solution to the system. We get 5,11 as the answer. I can hear you saying that's cheating, and it likely is, but it does get the answer.
The very first step without the graph is to equate each of the right hand sides to each other. That's because the left side are both ys and they have to be equal.
3x - 4 = 2x + 1 Add 4 to both sides
3x - 4 + 4 = 2x + 1 + 4
3x = 2x + 5 Subtract 2x from both sides
3x-2x = 2x-2x + 5 Combine
x = 5
y = 3x - 4
y = 3*5 - 4
y = 15 - 4
y = 11.
Related Questions
If the shaded part of this chocolate represents $21.00 and the unshaded part represents $5.00 each, what is the value of the whole chocolate
Answers
Answer:
$26.00
ad the picture Step-by-step explanation: it would be better if i had the pictrue but t ook the unshaded plus the shaded and got $26.00
Answer:
The correct answer is $26.00
Step-by-step explanation:
$21.00
+$ 5.00
________
$26.00
Write the rule to describe this transformation.
Need help please!
Answers
Answer:
Figure P'Q'R'S' has been dilated by a scale factor = 1.5 to form image quadrilateral P"Q"R"S".
Step-by-step explanation:
From the graph attached,
Coordinates of point T' → (2, -2)
Coordinates of point T'' → (3, -3)
As it's clear form the picture, quadrilateral P'Q'R'S' has been dilated to form the image quadrilateral P"Q"R"S" by a scale factor = k
By the rule,
T'(x, y) → T"(kx, ky)
Therefore, T'(2, -2) → T"(2k, -2k)
T"(2k, -2k) → T"(3, -3)
By comparing x-coordinates,
2k = 3
k = [tex]\frac{3}{2}[/tex]
k = 1.5
Therefore, figure P'Q'R'S' has been dilated by a scale factor = 1.5 to form quadrilateral P"Q"R"S".
Who can help me with these quick problems?
Answers
Graph: y = (x+3)²- 4
Answers
x-int=-5, y-int=5 and vertex is at (-3,-3)
If a fair die is rolled 6 times, what is the probability, to the nearest thousandth, of getting exactly 1 six?
ANSWER IS 0.402
Answers
Can someone please help me with math
Answers
Answer:
The answer would be B
Step-by-step explanation:
If 8 bottles of cold drink is Rs.480. Then find a) What will be the cost of 5 bottles of cold drink? B) How many bottles of cold drink can be purchased for Rs.640.
Answers
Answer:
(A) 300
(B) 11
Step-by-step explanation:
8 bottles of drink cost 480
Therefore one bottle will cost
= 480/8
= 60
(A) 5 bottles of cold drink will cost
= 60×5
= Rs300
(B) The bottles of drink that can be purchaseed at Rs640
= 640/60
= 11 bottles
what is the measure of C?
Answers
Answer:
10.82 or [tex] \sqrt{117} [/tex]
Step-by-step explanation:
pythagorean theorem is x^2+y^2=r^2
9^2+6^2=r^2
117=r^2
r= [tex] \sqrt{117} [/tex]
Answer:
10.81665383 about 10.8 units
Step-by-step explanation:
how to find the hypotenuse is a^2 + b^2 = c^2
a = 9
b = 6
9^2 + 6^2
9 x 9 = 81
6 x 6 = 36
81 + 36 = 117
177 = c^2
find the square root of 177 = 10.81665383 about 10.8
HELP ME I'M STUCK!!!! PLEASE AND THANK YOU!!!!
Answers
Answer: 1/8
Step-by-step explanation: The sample space are all of the different outcomes an event can lead to. The H and T combinations at the bottom are all of the different outcomes. I think the probability of getting 3 tails for the coins (or TTT) is 1/8. This is because there are 24 total outcomes (HHH, HHT, HTH, HTT, THH, THT, TTH, TTT). There is 3/24 TTTs (also, 1/8 if you count the groups/simplify). Therefore, it is 1/8. Hope this helps!
Zoey inflated 24 balloons for the high school dance. If Zoey inflated 15% of the total number of balloons at the dance, how many balloons are there total?
Answers
Answer:
Total number of balloons= 160
Step-by-step explanation:
Giving the following information:
Number of balloons inflated by Zoey= 24
Proportion of balloons inflated= 15%
To calculate the total number of balloons, we need to use the following formula:
Total number of balloons = Number of balloons inflated by Zoey / Proportion of ballons inflated
Total number of balloons= 24 / 0.15
Total number of balloons= 160
Which of the following properties is always true for a parallelogram? *
Diagonals bisect each other.
Diagonals are perpendicular.
Diagonals are congruent.
Diagonals biscect opposite angles.
Answers
Answer:
Diagonals bisect each other
Help me pls. this is due tonight
Answers
Answer:
8
Step-by-step explanation:
The formula to find the surface area of a rectangular prism is SA = 2ab + 2bc + 2ac, where a, b, and c all equal one side of the prism.
To solve this, plug in the value for surface area and the values of the known sides. let’s say a = 3cm and b =5cm and c = y cm. It doesn’t matter with value gets assigned to which letter.
SA = 2ab + 2bc + 2ac
158 = 2(3)(5) + 2(5)(y) + 2(3)(y)
158 = 30 + 10y + 6y
158 = 30 + 16y
128 = 16y
y = 8 cm
Can someone solve this please? (Radical Form)
Answers
Step-by-step explanation:
16+48=68 that's it good luck
PLEASE HURRY!!!!! I REALLY NEED SOME HELP!!!!!!!
Can someone pls explain Pythagorean Theorem to me
Thank you
Answers
Answer:
Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“. The sides of this triangle have been named as Perpendicular, Base and Hypotenuse. Here, the hypotenuse is the longest side, as it is opposite to the angle 90°.
Answer: In mathematics, the Pythagorean theorem, or Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
Step-by-step explanation:
I SMART
Which item in nature does NOT follow the Fibonacci Sequence *
Pinecone
Artichoke
Nautilus Shell
Pineapple
Answers
Answer:
all follow the sequence
Step-by-step explanation:
Pinecone and Pineapple - Scales and bracts are modified leaves, and the spiral arrangements in pine cones and pineapples reflect the spiral growth habit of stems. To confirm this, bring in a leafless stem from some tree or shrub and look at its buds, where leaves were attached.
Artichoke - The spiral of an artichokes leaves can be described by the Fibonacci Sequence. This sequence is a simple mathematical pattern where each successive number in the sequence is equal to the sum of the two preceding numbers, beginning with 0 and 1.
Nautilus shell - Each number is the sum of the two previous numbers. An approximation of a logarithmic spiral, created by drawing circular arcs connecting the opposite corners of squares in the Fibonacci tiling; this one uses squares of sizes 1, 1, 2, 3, 5, 8, 13, 21, and 34.
If I have 7/10 and 645/1000 how many would I need to get to 10/10 and 1000/1000
Answers
Answer:
3/10 and 355/1000
Step-by-step explanation:
pls help :))))))))) uhhhhhhhhh
Answers
The answers are 3 and -13
You need to plug 3 and -5 into x
By doing this, you get :
12 - 3^2 and
12 - (-5)^2
those expressions equal
12 - 9
12 - 25
So you get
3
-13
You are giving a Rubik's cube as a gift. The side of the Rubik's cube 3 inches. You want to wrap the gift with no paper left over. How much wrapping paper do you need
Answers
Answer:
18in of rapping paper
Step-by-step explanation:
a rubics cube has 6 sides so 6x3=18
The Acme Company produces metal rods. The largest rod that the Acme company produces is 10 feet long and 2 feet in diameter. How much material (the volume) is required to produce 1 metal rod? Round to the nearest tenth. Use 3.14 for \piπ .
Answers
Answer:
31.4 ft³
Step-by-step explanation:
Using the relation :
Volume, V = πr²h
Height = 10 feets ; diameter = 2 feets, radius, r = 2 /2 = 1 feet
Volume , V = π * 1^2 * 10
V = 1 * 10 * 3.14
V =31.4 feet³
Hence, the volume of material needed to produce 1 metal rod is 31.4 ft³
I have to find the area of the shaded region in the figure above and answer using an exact and approximate answer
Answers
Answer:
3925 units²
Step-by-step explanation:
area of larger circle = πr² = (3.14)(250²) = 196,250
area of smaller circle = πr² = (3.14)(200²) = 125,600
area of full donut = 196,250 - 125,600 = 70,650
20/360 = 1/18 of full donut
1/18(70,650) = 3925 units²
What is x and y if -4x+y=11
Answers
Answer:
See the expression below
Step-by-step explanation:
Given data
We have the expression
-4x+y=11-----------1
from 1 make y subject of formula we have
y=100+4x
Make x subject of the formula we have
-4x=11-y
divide both sides by -4
x=(11-y)/-4
treinte + catorce = ??
Answers
Answer:
cuarenta y cuatro = 44
Step-by-step explanation:
treinta + catorce = cuarenta y cuatro
30 + 14 = 44
Qué tengas un lindo día
Have a great day
PLEASE HELP WILL MARK BRAIN LIST IF CORRECT!
Answers
Answer: 806.5
Step-by-step explanation: you can split it into 3 different shapes: a triangle, rectangle, and a trapezoid. Then, find the area of each individual figure and add them all together and you get 806.5!!
Four graphs are shown below:
Graph A
Graph B
Graph C
Graph D
Which graph best shows the line of best fit? (1 point)
Answers
Please help me with 1,2 give me the answers and show me how you get it do not send me link please just write it right here please I really need help
Answers
1.)
c^2=a^2+b^2
c^2=10^2+24^2
c^2=100+576
c^2=676
c= √676
c=26 in
2.)
c^2=7^2+14^2
c^2=49+196
c^2=245
c= √245
c~15.65 cm
Solve the following equation algebraically:
-16 = 16x?
How many solutions does this equation have? Explain.
a. -1 = x3; One solution because only -1 will satisfy the equation.
b. -1 = x2; No real solution because there is no real number that, when squared, produces -1.
c. 1= x?: Two solutions because the square root of 1 is positive 1 and negative 1.
d. 1=-x?: One solution because only -1 will satisfy the equation.
Answers
Paycheck Pay Period Annual Salary
$1,300 monthly $
$1,000 biweekly $
$550 weekly $
$800 semimonthly $
Answers
Answer:
id like to get paid weekly
Step-by-step explanation:
Answer:
i dont get it
Step-by-step explanation:
Two friends leave school at the same time, Sarah is heading due north and Beth is heading due east. One hour later they are
5 miles apart. If Sarah had traveled 4 miles from the school, how many miles had Beth traveled?
OA. 2 miles
ОВ.
1 mile
OC. 3 miles
Answers
Answer:
Step-by-step explanation:
If you picture this scene in your head, you will get a simple 3x4x5 right triangle. 4 times 2 is 8, 5 times 2 is 10, so Sarah should, by now, have traveled 3 times 2 miles.
Final answer: Sarah has traveled 6 miles after an hour.
Hope this helped! :)
Helping tip: The reason it is not 4 is because they are not traveling west and east away from each other. They are traveling north and east, so they are moving in two directions to form a right triangle, and the hypotenuse would be 10 (miles). The side, or distance, that Beth has traveled is 8. So as this is a typical variation of a 3x4x5 triangle, Sarah will have traveled 6 miles.
What is the height of a tree if a man standing 5 feet tall is 42 ft from the tree and sees the top of the tree at an angle of elevation of 32°?
Answers
Answer: [tex]31.24\ ft[/tex]
Step-by-step explanation:
Given
The height of a man is 5 ft
Distance between man and tree is 42 ft
the angle of elevation is [tex]32^{\circ}[/tex]
Suppose h is the height of the tree
[tex]\Rightarrow \tan 32^{\circ}=\dfrac{h-5}{42}\\\\\Rightarrow h-5=26.24\\\Rightarrow h=31.24\ ft[/tex]
Express 18 and 24 as product of their prime factors
Answers
Answer:
6
cuz 6*3=18 and 6*4=24
Answer:
18: 2x9 3x6
24: 12x2 6x4 8x3
So 2
Step-by-step explanation:
Is that what you mean?