Solve the system algebraically. Check your work. 5x + 3y = 18 2x + 3y = 9 Make sure there are NO SPACES in your answer. Be sure to include a comma between the x and y values. ANSWER: {( a0 )}
Answers
Answer:
(3,1)
Step-by-step explanation:
5x + 3y = 18
2x + 3y = 9
So we can use elimination here to solve this system of equations by multiplying the second equation by -1
Now we have:
5x + 3y = 18
-2x - 3y = -9
Now we add straight down and combine like terms
The y terms cancel and we are left with 3x = 9, dividing both side by 3 we get x = 3
Now we can plug this x value into one of the original equations to solve for our y value
I will use the first equation: 5(3) + 3y = 18 → condensing the terms we get 15 + 3y = 18 → subtracting the 15 from both sides we get 3y = 3 → dividing both sides by 3 we get y = 1
The solution to this system of equations is (3, 1)
Related Questions
Select the equivalent expression.
(
4
3
y
)
3
=
?
(
y
4
3
)
3
=?left parenthesis, start fraction, 4, cubed, divided by, y, end fraction, right parenthesis, cubed, equals, question mark
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
4
9
y
y
4
9
start fraction, 4, start superscript, 9, end superscript, divided by, y, end fraction
(Choice B)
B
4
9
y
3
y
3
4
9
start fraction, 4, start superscript, 9, end superscript, divided by, y, cubed, end fraction
(Choice C)
C
4
6
y
4
y
4
4
6
start fraction, 4, start superscript, 6, end superscript, divided by, y, start superscript, 4, end superscript, end fraction
(Choice D)
D
4
6
y
3
y
3
4
6
start fraction, 4, start superscript, 6, end superscript, divided by, y, cubed, end fraction
Answers
Answer:
choice D
Step-by-step explanation:
Cujo is making pies. The ingredients state that each pie must contain 14 strawberries and 22 slices of banana. Drag numbers to complete the table to show how many strawberries and slices of banana are in each pie. Numbers may be used once, more than once, or not at all. 18 22 56 88 66 32 42 70 Number of Pies Strawberries Slices of Banana 1 14 2 28 44 3 4 56 5 110 i will try giving branleist!!!!!!!!!!!
Answers
help- I think its geometry ?
Answers
Answer:
14x10 then divide by 2=70
Step-by-step explanation:
Answer:
476cm2
Step-by-step explanation:
14×14=196cm2
\( \frac{1}{2 } \times 14 \times 10 = 70cm {}^{2} \)
\( {70cm}^{2} \times 4 = 280 {cm}^{2} \)
\(280 {cm }^{2} + 196 {cm}^{2} = 476 {cm}^{2} \)
The table shows the number of goals made by two hockey players.
Player A Player B
2, 3, 1, 3, 2, 2, 1, 3, 6 1, 4, 5, 1, 2, 4, 5, 5, 11
PLS HELP! AND FAST.
Find the best measure of variability for the data and determine which player was more consistent.
Player B is the most consistent, with an IQR of 3.5.
Player B is the most consistent, with a range of 10.
Player A is the most consistent, with an IQR of 1.5.
Player A is the most consistent, with a range of 5.
Answers
Answer: Player B is the most consistent, with an IQR of 3.5.
Step-by-step explanation:
For Player A, the IQR is 2 (Q3 - Q1 = 3 - 1 = 2).
For Player B, the IQR is 3.5 (Q3 - Q1 = 5 - 1.5 = 3.5).
Therefore, Player B is more consistent, as their IQR is larger, indicating less variability in their scores.
PLEASE HELP! I'LL MARK U AS BRAINLIEST!!
Answers
Answer: 1.02
Step-by-step explanation:
V=whl=0.8·3.2·0.4≈1.024
Answer: v=1.024
Step-by-step explanation: To find volume you use the formula v=l*w*h in this case l=0.4, w=0.8, and h=3.2. Multiplying those values gives you 1.024.
What is the simplified form of the expression 8x + 3 – 4x – 5?
11x - 9
4x - 8
12x -2
4x -2
Answers
Answer: The answer is D.
Step-by-step explanation: I got it right on T4L
Find the equation of a line perpendicular to y=−23x+7 that passes through the point (-6, 11)
A. y=−2/3x+7
B. y=2/3x+15
C. y=−3/2x+2
D. y=3/2x+20
E. y=3/2x+2
Answers
Nakwuwhqysuwnsbznakiaia
Explanation bc it is
PLS HELPPPP MEEEE!!!
Answers
Answer:
No
Step-by-step explanation:
We have to check if 3/5 = 6/25. If we convert 3/5 into a fraction with denominator of 25 so that we can compare the two we get 15/25 and this is clearly not equal to 6/25. Therefore, the answer is no.
Describe the pros and the cons of using the standard form of a line to graph an equation.
Answers
Answer:
The standard form of a line is expressed as Ax + By = C, where A, B, and C are constants and x and y represent the variables. One advantage of using the standard form to graph a line is that it is relatively easy to determine the slope and y-intercept of the line from the constants A and B. This can be particularly useful when trying to analyze the behavior of the line.
Another advantage of using the standard form is that it allows you to easily determine the equation of the line when given a set of points. For example, if you are given the points (2,4) and (3,6), you can use the standard form to find the equation of the line that passes through these points by substituting the coordinates into the form and solving for the constants.
One potential disadvantage of using the standard form is that it can be more difficult to interpret the meaning of the constants A, B, and C in terms of the context of the problem. For example, if the line represents the cost of a product, it may be more intuitive to express the equation in terms of the variables x (the number of units) and y (the cost). In this case, it may be more useful to use the slope-intercept form of the equation, which is expressed as y = mx + b, where m is the slope and b is the y-intercept.
Step-by-step explanation:
https://www.math.net/standard-form
Step-by-step explanation:
I honestly think that - ' jphhendell13 ' is correct.
Brainiest for free and for answer??
What is the area of the triangle in the coordinate plane?
26 units²
33 units²
36 units²
66 units²
㏒㏑
Answers
To get this you multiply the width by the length ( 6 x 11 = 66 ) and then divide that by 2 ( 66/2 = 33 )
Hope this was helpful!
Percentages
Gunpowder contains 75% nitre and 10% sulfur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulfur?
Answers
Answer:
Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.
So, about 200 kg gunpowder
Please Hurry. I need this answer quickly please.
Answers
Answer:63
Step-by-step explanation:
multiply 72 by 7 then divide i by 8
(72×7)/8
=63
It's 63.
simplify the equation 7/8×72 multiple 7×9 solution is 63
Briana spends $5 at the coffee shop every 3 days. At this rate, how much will Briana spend at the coffee shop in 30 days?
Responses
A $10
B $50
C $6
D $18
Answers
Answer:
B. $50
Step-by-step explanation:
first we know that in 3 days she spent $5 at the coffee shop
so then we multiply 5 by 30 and get 150 then divide by 3 and get 50
so the answer is $50
Answer:
Step-by-step explanation:
A rectangular garden has a walkway around it. Find the area of the walkway.
Answers
Answer:
Step-by-step explanation:
Im no expert but you would need information on the length and width of the rectangular garden and walkway. To figure this out you would need the information on the width of the walkway and length and width of the rectangle.
Let's pretend a rectangle has a width of 4 and length of 6. I would do 4x6. Then for the walkway lets pretend the width is 3. Since the we know the length of the rectangle is 6 and the width 4, I would do 2(6x3)+2(4x3).
I don't really know if this is correct but let me know if it iss!:))
Answer: hope this helps ♡
Area = 52x + 5
Step-by-step explanation:
Area = Length × Width
Length = 6.5 ft
Width = 8x+5 ft
Area = 6.5 × (8x+5)
Area = 52x + 5
The tape diagram below represents 100\%100%100, percent.
What percent is represented by the shaded area?
Answers
Answer:
Step-by-step explanation:
Well the answer is 40 cause you count by 20 so if you in 20 t o times then you would get 40 percent
Yasin has tried to work the size of the angle marked g in the regular decagon below, using the fact that exterior angles sum to 360°. His workings are shown below.
a) Write a sentence to explain what Yasin has done wrong.
b) What is the size of angle g? Show all your workings.
Answers
well, Yasin is correct, the exterior angles are all 36° each, however "g" is including more than just that, Check the picture below.
Answer: 36 is wrong
Step-by-step explanation: 360 - 36 = 324 degrees
HELLPPPPP PLS INCLUDE EXPLANATION ON HOW TO DO IT SO I CAN DO IT ON MY OWN!!!!
NO TROLLS PLS EITHER!
Answers
Answer: 0.000021 in scientific notation is
2.1 × 10-5
Step-by-step explanation:
All numbers in scientific notation or standard form are written in the form
m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer.
To convert 0.000021 into scientific notation, follow these steps:
Move the decimal 5 times to right in the number so that the resulting number, m = 2.1, is greater than or equal to 1 but less than 10
Since we moved the decimal to the right the exponent n is negative
n = -5
Write in the scientific notation form m × 10n
= 2.1 × 10-5
Therefore,
2.1 × 10-5 is the scientific notation form of 0.000021 number and 2.1e-5 is the scientific e-notation form for 0.000021
** Hope this helps you! Good Luck!
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
what perimeter are possible for a shape drawn along graph paper lines
Answers
Answer:
to find the perimeter add each of the sides which you can find by counting how many boxes are in between each point
Step-by-step explanation:
Answer:
The perimeter of any shape can be found on a graph.
The perimeter can be found through the distance of the vertices (points) of the shape. The distances added gives the perimeter.
what is 9038 x 8389
if u answer ill give u a crown thing
Answers
Answer:
75,819,782
Step-by-step explanation:
Answer:
75,819,782
Step-by-step explanation:
that's the answer
The area of a circle, in terms of π, is 100πm2.Find the value of the radius.
VERY URGENT
CORRECT ANSWER GETS BRAINLIEST
Answers
Now, to find R, simply take the square root of the 100 from which they already gave you. You get a radius of 10 meters.
Note, plugging in 10 into the actual formula for area, gives you the same answer they gave you
Answer :
\(radius = 10\)
what is the answer to 7 ( x+2) +3=73
Answers
Answer:
7(x +2) +3 = 73
7x + 14 +3 = 73
7x + 17 = 73
7x +17-17 = 73-17
7x = 56
7x/7 = 56/7
x = 8
hope that will help you
Answer:
8
Step-by-step explanation:
7 kilometers - 2,000 meters (put your answer in kilometers)
Answers
Answer:
Conversion factor: 7 km = 2000m
1) Kilometer = Meter = 1000
2) Kilometer = 7000 – 2000
3) Kilometer = 5
#Hope it helps!!
1 kilometer is 1,000 meters, so 7 kilometers is 7,000 meters. 7,000-2,000=5,000 meters. Then move the decimal point to the left 3 times, to convert it back to kilometers. 5 kilometers.
An alternative is to make the meters into kilometers beforehand. So move the decimal point in 2,000 meters three times to the left to get 2 kilometers. Then subtract 2 kilometers from 7 kilometers to get 5 kilometers.
A construction crew is lengthening a road that originally measured 41 miles. The crew is adding one mile to the road each day. Let L be the length (in miles) after D days of construction. Write an equation relating L to D. Then use this equation to find the length of the road after 38 days.
Answers
38D+41=L
Answer:
We can simply find our answer and this is our solution
38D+41=L
Step-by-step explanation:
5/7 x 6/35. Please help me. If you get it right, ile give you this coffee --> ☕
Answers
Answer:
Step-by-step explanation:
Its 0.122 Can i get my coffee now please i need to do my hw!
WE ALMOST MADE ITTT LIKEE AHHHH
Answers
Answer: 12(2a-b)
Step-by-step explanation:
12x2a=24a
12x-b=-12b
put it toghter you get 24a-12b
Hey there!
Finding out what is equivalent to 24a - 12b
Option A.
6(4a - 3b)
= 6(4a) + 6(-3b)
= 24a - 18b
OPTION A. isn’t your answer because that gives you “24a - 18b”
Option B.
8(3b - 2b)
= 8(3b) + 8(-2b)
= 24b - 16b
OPTION B. isn’t your answer because that gives you “24a - 16b”
Option C.
12(2a - b)
= 12(2a) + 12(-b)
= 12(2a) + 12(-1b)
= 24a - 12b
OPTION C. could possibly be your answer
Therefore, your answer should be:
“OPTION B. 12(2a - b)”
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Answers
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
(-5)(4.2) = -21
(-7)(-3) = 21
(4)(5) = 20
(2.5)(-9) = -22.5
So, the pairs of numbers and their products are as follows:
(-5)(4.2) = -21 matches with -21.
(-7)(-3) = 21 matches with 21.
(4)(5) = 20 matches with 20.
(2.5)(-9) = -22.5 matches with -22.5.
I hope this helps!
please help! please!!
Answers
Answer:
21.5
16.5
10.5
1.5
3.5
7.5
Step-by-step explanation:
69 - 90.5 = -21.5 = 21.5
74 - 90.5 = -16.5 = 16.5
80 - 90.5 = -10.5 = 10.5
92 - 90.5 = 1.5
94 - 90.5 = 3.5
98 - 90.5 = 7.5
A gardener would like to add to their existing garden to make more flowers available for the butterflies that visit the garden. Her current garden is 45 square feet. If she added another rectangular piece with vertices located at (−21, 7), (−23, 7), (−21, 12), and (−23, 12), what is the total area of the garden?
10 ft2
55 ft2
225 ft2
450 ft2
Answers
Answer:1) So, to find the area of a rectangle, you need to find the width and length and multiply them together. If you wish for a visual interpretation, you can plot the points and count out the length and width. However, you can also solve this without using a graph. Note, from the first point, (-21,7) to the second point (-23,7) the only change is the X factor by a measure of 2. So our width is 2. From the second point (-23,7) to the fourth point (-23,12) the change is in the y factor by a measure of 5. So our length is 5. You use the 4th point because you want the non measured factor to be the same when measuring length and width. So you have a length of 5 and a width of 2 to get 10 square feet added or 55 square feet total.
Step-by-step explanation:
ASAP PLS I NEED IT AND TY
Answers
When we're solving with scale factors, we either divide or multiply.
If the shape becomes larger, we multiply to get the new length.
If the shape becomes smaller, we divide to get the new length.
Solving the QuestionWe're given:
Original side length is 2.5 unitsScale factor = 6Because the shape becomes larger, we have to multiply the original side length by the scale factor, 6, to get the new side length.
2.5 x 6 = 15
Therefore, the missing side length is 15 units.
Answer15 units
Answer:
6
Step-by-step explanation: