Answer:
x= 2
y= -1
Step-by-step explanation:
Simultanous equation(elimination method)
STEP 1: multiply the number near x with the opposite equation.
in this case in equation 1, three is near x so u multiply it with the second equation.
2(3x-2y=4)
3(2x+3y=7)
you get 6x-4y=8
6x+9y=21
STEP 2: Change the sign ONLY IN SECOND equation to its opposite sign
6x-4y=8 <-------- 1st equation
6x+9y=21 <-------- 2nd equation
SO WE CHANGE THE SIGN IN SECOND EQUATION TO: -6x-9y= -21
STEP 3: Now do the elimination part and calculation
+6x-4y=8
-6x-9y= -21
___________
0x-13y= 13
NOTE: X IS ALWAYS CANCELLED IF ITS NOT THERE'S PROBABLY A MISTAKE
STEP 4: Solve for y
now that x is cancelled we have to solve for y.. to do this take the eliminated equation in step 3 and solve for y
-13y= 13
y= 13/-13
y= -1
STEP 5: We have officially solved for y.. now we need to bother about x.. to solve for x take the first original equation IN THE QUESTION and substitiute( replace) y value in equation
ORIGINAL EQUATION: 3x-2y=4
3x-2(-1)=4
3x-2=4
x= 6/3
x= 2
NOTE: YOU CAN ALSO TAKE THE SECOND EQUATION BUT ITS EASIER WHEN YOU TAKE THE FIRST ONE. EITHER WAY YOU MUST GET THE SAME ANSWER
Answer:
x=2, y=1
Step-by-step explanation:
3x-2y=4
2(3x-2y)=2(4)
6x-4y=8
2x+3y=7
3(2x+3y)=3(7)
6x+9y=21
6x+9y-(6x-4y)=21-8
6x+9y-6x+4y=13
13y=13
y=13÷13
=1
3x-2y=4
3x-2(1)=4
3x=4+2
=6
x=6÷3
=2
Hence, x=2 and y=1.
PLEASE HELP
answer both of the questions in the photo please
Answer:
-6
11
Step-by-step explanation:
-6n-5=31
-6n=36
n=-6
-28=-3n+5
3n=5+28
3n=33
n=11
A rectangular cake pan has a volume of
234
cubic inches. If the length of the pan is
9
inches and the width is
13
inches, what is the height of the pan?
Step-by-step explanation:
volume of a rectangular pan = length of the pan × width of the pan × height of the pan
V=l.b.h
234=9.13.h
h=234/9×13
h= 2in.
hope this helps you.
Answer:
2 inches
Step-by-step explanation:
V= 234, L=9, W=13, H=?
V= LxBxH
234= 9x13xH
234= 117H
divide through by 117
234/117 = 117H/117
H= 2inches
Identify the axis of symmetry of the parabola.
What would be the right answer?
Answer:
x=-3, That is the x value of the vertex, and it is a vertical parabola.
there are 9 acorns in each pile. there are 8 piles. how many acorns are there in all? write an equation that can be used to solve this problem
Answer:
72 acorns.
Step-by-step explanation:
9 (acorns per pile)
*
8 (piles)
Answer:
9x8=72 making the answer 72 acorns in total.
i need you to explain the answer please and thank you!!
Answer: January, because negative numbers are positive numbers' opposite; so -11.4 < -10.4
Find the value of x so that L||M
9514 1404 393
Answer:
x = 19
Step-by-step explanation:
The marked (consecutive interior) angles will be supplementary when the lines are parallel.
(3x +10)° +(5x +18)° = 180°
8x = 152 . . . . . . . . . . . . . . . divide by °, subtract 28
x = 19 . . . . . . . . . . . divide by 8
What is the value of k?
help!!!!
Answer:
k = 10°Step-by-step explanation:
[tex] {115}^{o} = {(4k + 5)}^{o} + {(6k + 10)}^{o} \\ [/tex]
An exterior angle of a triangle is equal to the sum of its two interior opposite angles.
[tex] {115}^{o} = {(4k + 5)}^{o} + {(6k + 10)}^{o} \\ {115}^{o} = 4k + 5 + 6k + 10 \\ {115}^{o} = 10k + 15 \\ {115}^{o} - 15 = 10k \\ {100}^{o} = 10k \\ \frac{100}{10} = k \\ {10}^{o} = k \\ [/tex]
Kiran has 27 nickels and quarters in his pocket, worth a total of $2.75.
a. Write a system of equations to represent the relationships between the
number of nickels n, the number of dimes d, and the dollar amount in
this situation.
Answer:
[tex]\begin{cases}n+d = 27\\0.05n+0.10d = 2.75\\\end{cases}[/tex]
====================================================
Explanation:
n = number of nickels
d = number of dimes
The n and d are placeholders for positive whole numbers.
Since we have 27 coins, we know that n+d = 27. The two subcounts must add to the grand total of 27. That explains how the first equation is set up.
The second equation is set up by looking at the dollar amount each group of coin brings in.
0.05n = amount of money in dollars the nickels bring in
0.10d = amount of money in dollars the dimes bring in
0.05n+0.10d = total amount of money in dollars = 2.75
The single curly brace to the left of the equations tells the reader we're dealing with a system of equations. The equations are tied together.
help me guys I don't get this !!!
Answer:
-2.5, 0.75
Step-by-step explanation:
When we need to find a solution to a system of equations using a graphing tool, we graph those two equations and find the point of intersection.
This is an informative article on how to do that:
https://www.dummies.com/education/graphing-calculators/how-to-find-points-of-intersection-on-the-ti-84-plus/
solve pls brainliest
Answer:
(1,6)
Step-by-step explanation:
all u gotta do is look at the graph, the school is at x=1 and y=6 so therefore (1,6)
Answer:
(1,6)
Step-by-step explanation:
Can anyone help me solve these ?
Answer:
try using demos its a great app for creating and reading maps
kia worked 30 hours and 15 minutes this weekend . if she makes $15.60 per hours ,how much did she make?
Answer:480.10
Step-by-step explanation:
Answer:
$471.9
Step-by-step explanation:
Take "30 hours and 15 minutes" into a number you can multiply. 15 minutes is a quarter of an hour, so our number is 30.25
Do 30.25 x 15.60 to get 471.9
Add a dollar sign, and there's your answer of $471.9!
Hope this helped.
The property tax on a house with an assessed value of $606,000 is $7070. Determine the property tax on a house with an assessed value of $810,000, assuming the same tax rate.
The property tax is $___?
Answer:
9450
Step-by-step explanation:
.........................
please help me for my practice problems
A can of green beans cost $1.29 but goes on
sale for $0.79. What was the sale on the green
beans?
Plz help!!!
Answer:
≈ 38.76%Step-by-step explanation:
Given:
Cost = $1.29Sale = $0.79Sale percent is:
(1.29 - 0.79)/1.29*100% ≈ 38.76%simplify 4h^j^-5k^7
Answer:
Answer in picture below
use the given zero to find all the zeros of the function.
g(x)= 3x^3+11x^2+11x-5
zero: -2+i
Answer:
11x + 5
Step-by-step explanation:
what is the height if a painting is 1 centimeters and represents as 9 inches
Answer:
The height of the real painting is 36 inchesWhat is the denotation of the word "stealing” in this excerpt?
being deceptive
committing a crime
keeping a secret
taking over
The word stealing in the given excerpt denotes; taking over
How to find the meaning of the excerpt?
This question is gotten from the excerpt from the Narrative of the Life of Frederick Douglass.
Now, from the given narrative, we see that her frame already racked with the pains of old age, and complete helplessness fast stealing over her once active limbs.
Thus, this means that the word stealing denotes that taking over her active limbs.
Read more about excerpt at; https://brainly.com/question/21400963
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Answer:
Taking over.
Step-by-step explanation:
Find the domain and range of the given rational function f(x) =
x+1
2x−2
which is equivalent to 2 5/6?
A. 5/3
B. 12/5
C. 7/6
D. 17/6
(IF YOU ARE ABLE TO, PLEASE PROVIDE AN EXPLANATION FOR THE ANSWER)
Which raito is less than 7/15?
A. 9/15
B. 2/5
C. 3/5
D. 24/45
Answer:
⅖
Step-by-step explanation:
Simply convert them to decimals...
7/15=0.466666...
9/15=0.6
⅖=0.4
⅗=0.6
24/45=0.53333...
Hope this helps.
heyyy if you tell me the correct answer I’ll give you’re answer a 5 thanks and brainlest please hurry
Answer:
29in
pls give brainliest tq
have a great day
solve pls brainliest
Answer:
1.833, 3.3052, 3.35, 3.5
Step-by-step explanation:
Hope this helps! :)
The ____ juice is made with a greater percent of water.
Answer:
Orange and apple
Step-by-step explanation:
Mark brainliest, isaac farts all the time u don’t want him to fart on u next
Sorry its blurry but please answer fast!!!!!
Answer:
i know 14 and 15 are true but not sure about 12 sry
Step-by-step explanation:
AB= 10.2 cm and Bc= 3.7 cm find the length of AC
Answer:
3.2333
Step-by-step explanation:
A 125 mililiter solution of fabric dye contains 5 ml of hydrogen peroxide what percent concentration of hydrogen peroxide?
1
TIME REMAINING
59:10
Which graph has a slope of ?
2
سا
-1.
-5-4
-2-1
11
-21,
1 2 3 4 5
-2
-3
-3
-5
Answer:
5
Step-by-step explanation:
i say 5 it makes more sens then the other answers
The graph which have slope 4/5 is Graph II.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
We have the graph.
As, we know slope= rise / run
In graph 1 the slope is
Slope= rise/ run
slope= 4/4
slope= 1
In graph 2 the slope is
Slope= rise/ run
Slope = 4/5
In graph 1 the slope is
Slope= rise/ run
Slope= 2/5
Thus, Graph II have slope 4/5.
Learn more about Slope here:
https://brainly.com/question/3605446
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Bailey wants to find 0.4 × 0.9. Part A Which of the following grids models the problem? A. Hundred grid. Four grid blocks shaded horizontally and nine grid blocks shaded vertically. The intersection is one grid block. B. Hundred grid. Four columns shaded vertically and nine rows shaded horizontally. The intersection is 36 grid blocks. C. Hundred grid. Six columns shaded vertically and one row shaded horizontally. The intersection is 6 grid blocks. D. Hundred grid. Eight columns shaded vertically and three rows shaded horizontally. The intersection is 24 grid blocks.
Answer:
B
Step-by-step explanation:
It seems like the answer would be B since 0.4 x 0.9 = 0.36 and the intersection for answer choice B is 36 grid blocks.
The correct equation of the given grids models the problem is,
⇒ Hundred grid. Four columns shaded vertically and nine rows shaded horizontally. The intersection is 36 grid blocks.
Option B is true.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
Bailey wants to find the value of 0.4 × 0.9.
Now,
After multiplication, we get;
⇒ 0.4 × 0.9
⇒ 0.36
Hence, By all the options;
The correct equation of the given grids models the problem is,
⇒ Hundred grid. Four columns shaded vertically and nine rows shaded horizontally. The intersection is 36 grid blocks.
Option B is true.
Learn more about the multiplication visit:
https://brainly.com/question/10873737
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