Answers
From eq(2)
[tex]\\ \sf\longmapsto x-5y=0[/tex]
[tex]\\ \sf\longmapsto x=5y\dots(3)[/tex]
Put the value in eq(1)[tex]\\ \sf\longmapsto 4x+3y=23[/tex]
[tex]\\ \sf\longmapsto 4(5y)+3y=23[/tex]
[tex]\\ \sf\longmapsto 20y+3y=23[/tex]
[tex]\\ \sf\longmapsto 23y=23[/tex]
[tex]\\ \sf\longmapsto y=1[/tex]
Put the value in eq(3)[tex]\\ \sf\longmapsto x=5y[/tex]
[tex]\\ \sf\longmapsto x=5(1)[/tex]
[tex]\\ \sf\longmapsto x=5[/tex]
Hence
(x,y)=(5,1)
Related Questions
There is a circle with a center of 0,0 on a coordinate plane. There is one point on the circle's circumference in which the x:y ratio is 3:1. What is a possible coordinate?
Answers
Answer:
Step-by-step explanation:
Suppose the radius is 1. The parametric equations for the circle are
x = cosθ
y = sinθ
x:y = 3:1
tanθ = ⅓
cosθ = 3/√(1²+3²) = 3/√10
sinθ = 1/√10
The solutions are (3/√10, 1/√10) and (-3/√10, -1/√10).
I need help with this math question.
x^3-8x^2<0
Answers
Answer:
X>8
Step-by-step explanation:
Dudbdksjhdkdkfisk
What is the product of 2/5 × 3/4?
Answers
3/10 or 0.3
step-by-step explanation:
2/5 x 3/4
2 x 3
6
6/4
4 x 5
20
6/20
3/10
Answer:
3/10
Step-by-step explanation:
2/5*3*4
=6/20
=3/10
What is
88x3-7+198-34x15+76-126=
Answers
-105
Multiply first, then subtract, then add.
Answer: the answer would be -105.
A region c
B region d
C region a
D region b
Answers
Answer:
Region C
Step-by-step explanation:
y ≤ ¼ x + 3 maps the areas C and D including the common boundary line
y ≥ -x + 5 maps the areas B and C including the common boundary line
The common area mapped is C plus its boundaries
mean is 1250
variance is 120
finding the probability between 970 and 1320
[tex] find p{970 < x < 1320}[/tex]
Answers
Although you said the variance is 120, I suspect you meant to say standard deviation. If that's the case, then
P(970 < x < 1320)
= P((970 - 1250)/120 < (x - 1250)/120 < (1320 - 1250)/120)
≈ P(-2.3333 < z < 0.5833)
= P(z < 0.5833) - P(z < -2.3333)
≈ 0.72012 - 0.009815
≈ 0.7104
If you really did mean variance, then
P(970 < x < 1320)
= P((970 - 1250)/√120 < (x - 1250)/√120 < (1320 - 1250)/√120)
≈ P(-25.5604 < z < 6.3901)
= P(z < 6.3901) - P(z < -25.5604)
≈ 1 - 0
≈ 1
Plz help!
Determine the expression for the perimeter of a rectangle with a length that is five less than twice its width
Answers
Answer:
P= 6w - 10
P= 2(L+W)
L= 2w-5
P= 2(2w -5+w)
P=2(3w-5)
P= 6w - 10
How to do this question?
Answers
Answer:
40
Step-by-step explanation:
2x² - 5y + 7 when x = 2 and y = -5
2(2)² - 5(-5) + 7
= 2(4) -5(-5) + 7
= 8 + 25 + 7
= 40
HaLP a beggar in need
Answers
Answer:
C) 2
Step-by-step explanation:
From the point (2,0), the next point on the graph is up 2, right 1, meaning that the slope is a positive 2.
Someone help my sister with her math I’ll give you brainlest.
Answers
9514 1404 393
Answer:
see attached
Step-by-step explanation:
We're not quite sure what the question is.
It appears you may be interested in the names of the groups of 3 digits. Each such group is called a "period." Each period is named for the place value of its right-most digit.
The period just to the left of the decimal point is the "ones" period. To the left of that is the "thousands" period, and to its left is the "millions" period.
When writing the name of a number, the name of the three digits within a period is given, followed by the period name (if it is greater than "ones"). This continues left to right, until you get to the decimal point. For example, the number shown is ...
eight hundred sixty-two thousand seven hundred ninety-four
pls help me asap !!!
Answers
Answer:
11
Step-by-step explanation:
Hopefully you can see that this is an isosceles triangle and remembering the inequality theorem of a triangle (4,4,11 triangle cannot exist). Iso triangle has two side the same length - as well as two angles the same.
A stegosaurus eats ten twelfths of a plant and then eats two twelfths of the plant later. Estimate how much of the plant the dinosaur ate in all. Explain your thinking.
Answers
Answer:
12 Twelfths (12/10)
Step-by-step explanation:
If the dinosaur ate 10 twelfths, then ate 2 twelfths, you need too add that up.
10/12 + 2/12 = 12/10.
The dinosaur ate 12/10 of a plant. (6/5 if needed to simplify)
Hope this helps!
Answer:
0/12
Step-by-step explanation:
The answer is 0/12. We know this because if there are twelve twelfths [12/12] of a plant and the stegosaurus eats ten twelfths [10/12] of a plant then it is 12 - 10 or the fraction form [12/12 - 10/12] then we subtract and we get the answer [2/12]. And then later it says the stegosaurus ate two twelfths [2/12] of a plant then we subtract 2 - 12 or [2/12 - 2/12] that would then equal 0/12.
Using your textbook, solve the problems below. Show your work.
Solve for y:
y + 8 = 2
Answers
Answer:
i dont know lol
Step-by-step explanation:
A local food bank uses volunteers to staff the kitchen. If there are 30 college students working there out of a total of 100 volunteers, what is the probability that in a sample of 10 volunteers, 4 of them are college students? Four decimal places please!
Answers
Now let’s pick 4 students that we know for sure, mark 10 spots and have them walk randomly into each taking exactly 1 spot. There are C (10,4) possible combinations of choosing 4 people to walk in, for example 4s taking spot 3,6,7,10; 2,5,7,8; … C(10,4) = 210 ways. This represents that in a 10 spot line with 4 students and 6 non students in it, no matter how they are arranged there are 210 ways they line up. Now since each way has a prob 1/1024 we have a probability of 210 ways multiply by 1/1024 which = 55/256.
That was the case with large pool of equal number of S and N let’s make it a more realistic say 50 students and 50 non students. (1/2 derived from 50/100 or 5/10)
So now we have 30 students and 70 non students pool, the answer should be (3/10)^4*(7/10) ^6 which is the probability of 4 students and 6 non students lined up in some way while choosing them from the pool. Here we can also see that each 10 people sample no longer have the same probability. And that number came out to be 0.0081*0.117649=0.00095. And again there are 210 ways of arranging them so the probability is 210 ways multiply by 0.00095 which is 20%. This is the Answer.
What is a the answer??
Answers
Answer:
First one=120,138 Second one=477,900
Step-by-step explanation: For the first one use subtraction, and for the second one use multiplication. Such as multiplying each digit of 6,372 by 7 and by 5. The top one is pretty self explanatory.
Can I have help I am stuck on this problem It would mean the world if u helped me and tysm!! =-)
Answers
Answer:
10^9
Step-by-step explanation:
1,000,000,000
There are 9 zeros
This is in the form
a* 10^b where a is the first digit and b is the number of zeros
1 *10^9
We can drop the 1 because 1 times anything itself
10^9
Answer:
10^9 meters.
Step-by-step explanation:
A small trick I use is counting how many zeroes trail behind the one.
If we count the number of zeroes behind the one, there are 9.
Therefore 1,000,000,000 = 10^9 meters.
This can be proved by taking a number, say 1. If you multiply that by 10, you add a zero to the end of it.
Factor completely 12a^3d^2 – 6ad^3
Answers
Answer:
[tex]12a^3d^2-6ad^3[/tex]
To factor an integer, we need to divide it by the ascending sequence of primes 2, 3, 5
In the end, the number of times each prime divides the original integer becomes its exponent.
Prime number 2 to the power of 2 equals 4 .
Prime number 3 to the power of 1 equals 3 .
[tex]2^{2} \times 3\times a^{3} \times b^{2} -(2\times3)ad^{3}[/tex]
Result:- [tex]6ad^2\left(2a^2-d\right)[/tex]
OAmalOHopeO
A baseball player's batting average is equal to the number of hits divided by the number of at-bats.
[tex]\frac{hits}{at-bats}[/tex]
A professional player had 123 hits and 501 at-bats in 2010. In 2011, he had 131 hits and 515 at-bats. How many more consecutive hits would he have needed in order to raise his 2010 batting average to that of 2011?
Answers
he would need about 5 more hits to make his average equal to that in 2021
128/501 = .255
The player needs 5 consecutive hits in order to raise his 2010 batting average to that of 2011.
What is average ?An average of a list of data is the expression of the central value of a set of data. It is also defined as the ratio of summation of all the data to the number of units present in the list.
How to find the number of hits in order to raise the batting average ?It is given that a professional player had 123 hits and 501 at-bats in 2010 and in 2011, he had 131 hits and 515 at-bats.
Also, the baseball player's batting average is equal to the number of hits divided by the number of at-bats.
Average in 2010 - 123/501 = 0.245 .
Average in 2011 - 131/515 = 0.254 .
Thus if he increases the number of shots to 5 then we have the total number of shots as 123 + 5 = 128 .
Therefore the batting average for 2010 becomes - 128/501 = 0.255 which matches the batting average of 2011.
Thus, the player needs 5 consecutive hits in order to raise his 2010 batting average to that of 2011.
To learn more about average, refer -
https://brainly.com/question/1635504
#SPJ2
Multiplying and bmbFREE BRAINLIST AND POINTS!! Fast! RIGHT ANSWERS ONLY! Scam and wrong answers will be reported and dealed with.
1. 6x(-4)=
3. (-11) x 5=
4. (-12) x (-7)=
5. (-2) x (-10)
6. 4 x (-15)=
Answers
Answer:
Step-by-step explanation:
-24
-55
84
20
-60
multiply 725base 9× 367base 9
Answers
Answer:
Hello,
Answer 303028
Step-by-step explanation:
Multiplication in base 9
[tex]\begin{array}{cccccc}9^5&9^4&9^3&9^2&9^1&9^0\\--&--&--&--&--&--\\&&&7&2&5\\&&&3&6&7\\--&--&--&--&--&--\\&&5&5&8&8\\&4&7&6&3&\\2&3&7&6&&\\--&--&--&--&--&--\\3&0&3&0&2&8\end{array}[/tex]
Andrea's Sequoia gets 12 miles per gallon while driving in the city, and 20 miles per gallon while on the highway. The last time she filled up the car it took 16 gallons of gas, and she had driven 280 miles since the previous fill-up. How many miles of that 280 were city driving?
Answers
Answer:
60miles
Step-by-step explanation:
if they drove x miles in the city and y miles on the highway then you know that
x + y = 280
x/12 + y/20 = 16
x + 12y/20 = 16*12 = 192
8y/20 = 88
y = 220
x = 280-y = 280-220 = 60
Find a and b such that ab = 15
and a+b = -8.
Answers
a = -3 or -5 and b = -5 or -3
Step-by-step explanation:
a + b = -8
ab = 15
b = 15/a
b = 15/(-3)
b = -5
a(-5) = 15
(-5)a = 15
(-5)/5 = 15/-5
a = -3
a + b = -8
-3 - 5 = -8
-8 = -8
Given the parent graph h(x) = x, what happens when it is changed to h(x + 9)?
Answers
Answer:
If the parent graph is h(x) = x, then h(x+9) would actually be shifting the graph 9 units to the LEFT.
Let me know if this helps!
please help, will give brainliest for correct answer
Answers
ain't it just 3 for each one unless i'm missing something
To prepare for the town's race, Andrew runs around a rectangular field. The dimensions of the field are 450 feet
by 225 feet. How many times must Andrew run around the field in order to run 12 miles? One mile is 5,280
fect.
Round the answer to one decimal place if necessary?
Answers
Answer:
46.9 times
Step-by-step explanation:
First, we can calculate how many feet it takes to run around the field. To find the perimeter of a rectangle, we can use the formula
2* length + 2 * width. With the length being 450 and the width being 225 here, we can say that
2*450 + 2 * 225 = 1350 feet
Therefore, Andrew runs 1350 feet each time he runs around the field. Next, we need to figure out how much 1350 feet goes into 12 miles as we want to find how many times Andrew runs around the field to get to 12 miles. This can be represented by
12 miles/1350 feet
One thing that we can do here is multiply the fraction by 1 to keep it the same. Because 1 mile = 5280 feet, we can say that
1 mile/5280 feet = 1 = 5280 feet/1 mile. Therefore, it would be safe to multiply
12 miles/1350 feet by 1 = 5280 feet/1 mile. Note that feet is on the bottom in the first fraction (12 miles/1350 feet) and on the top in the second (5280 feet/1 mile) so they will cancel out. Similarly, miles are on top in the first and bottom in the second. We then have
12 miles/1350 feet * 5280 feet/1 mile =63360/1350 ≈ 46.9
Help me because I dont understand
Answers
Answer:
105 sq ft + 31 sq ft
Step-by-step explanation:
= 136 sq ft
Hope it helps✌✌
which of the following portions are true
A. 20/48 = 40/90
B. 25/40 = 48/80
C. 18/48 = 27/72
D. 12/15 = 21/25
Answers
Solve this inequality: x+ 4< 16
Answers
Answer:
x < 12
Step-by-step explanation:
subtract 4 from both sides:
x + 4 < 16
- 4 -4
x < 12
Answer:
x<4
Step-by-step explanation:
x+4 <16
x < 16
4
x<4
I hope this will help you
The values of 9’s in 9905482
Answers
Answer:
9,905,482=
Million place
9,905,482=
one hundred thousandth
Question 2 Select the correct statement(s) about the Model Evaluation stage of the data science methodology.
Answers
Answer:
where is the whole question
