Answers
Answer:
(3,7) is not a solution
Step-by-step explanation:
You fill in the values x=3 and y=7 in both equations and see if you end up with something that is true.
-5·3 - 2·7 = 23 is not true, because it simplifies to -29 = 23
no need to look further, but if you would, the second equation is also false:
3 + 4·7 = -19 is also not true.
The real solution by the way is (-3, -4).
Related Questions
JJ withdraws $20 from his bank account every week for lunch. Suppose he does not make any additional deposits or withdrawals. What integer represents the change in value of JJ's bank account after nine weeks?
Answers
Answer:
-118
Step-by-step explanation:
Since he is withdrawing, the value of 20 will be negative.
And if he is withdrawing $20 over nine weeks, then it is a multiplication problem.
So,
-20 x 9 = -118
Please help me, I will be so thankful
Answers
Answer:
Step-by-step explanation:
g(-4) = 4 , x < -2
g(-2) = (x - 1)² ; -2≤x< 1
= (-2-1)²
= (-3)²
g(-2) = 9
g(0) = (x -1)² ; -2 ≤ x < 1
= (0 -1)²
= (-1)²
= 1
If women always married men who were 2 years older
than themselves, what would the correlation between the ages
of husband and wife be?
(a) 2
(b) 1
(c) 0.5
(d) 0
(e) Can't tell without seeing the data
Answers
Answer:
If you were to create a scatterplot using sample ages such as : (30,32),(33,35),(47,49), etc. You will begin to see a perfect linear relationship, which would mean the correct correlation is 1.
(hope it helps! <3)
plz help my grade went down
Answers
Answer:
Slope = -4
Step-by-step explanation:
Perpendicular lines have negative reciprocal slopes, which means that multiplying their slopes result in a product of -1. Given the equation, x - 4y = - 12:
Transform the equation into its slope-intercept form, y = mx + b:
x - 4y = - 12
x - x - 4y = - x - 12
-4y = -x - 12
Divide both sides by -4:
[tex]\frac{-4y}{-4} = \frac{-x - 12}{-4}[/tex]
y = ¼x + 3 ⇒ (This is the slope-intercept form of the given standard equation, x - 4y = - 12).
Since the slope of the given equation is ¼, then it means that its negative reciprocal must be - 4:
(¼) (-4) = -1
Therefore, the slope of the line perpendicular to x - 4y = - 12 is - 4.
The velocity of a moving body is given by the equation V = 12t – 6t2. For what
value of t is the velocity greatest?
Answers
Answer:
greatest velocity 6
Step-by-step explanation:
v=12t-6t2
dv/dt=0
12-12t=0
t=1
v at t=1=12-6=6
The GCF of two numbers is 3 and the LCM is 180. If the one of the number is 45, what is the other number?
Answers
Answer:
45
Step-by-step explanation:
45 = 3*3*5
180 = 2*2*3*3*5 <---- so the other number had to contain a factor of 2*2 or 4
also, let the other number has to be of the form 3k and it must contain a factor of 4, how about 12 ?
check: lcf of 12 and 45 is 3,
the lcm of 12 and 45 is ...
12 = 2*2*3
45 = 3*3*5
so we need: 2*2*3*3*5 = 180
(9 x 10⁶)(8 x 10⁻⁴)= ?
Answers
Answer: 7.2x10 3
Step-by-step explanation:
Answer: 7.2 x 10^3 or 7200
Step-by-step explanation:
geometry hw!!! picture is above
Answers
What is the slope of the line that passes through the points (8, -4) and (6, 2) ? Write your answer in simplest form.
Answers
Answer:
m=-3
Step-by-step explanation:
I just used the slope formula. Hope this helps! Also, I'm certain this is correct.
Solve for x
See picture for problem! Please and thank you!!
Answers
Answer:
x = 10°
Step-by-step explanation:
m∠DCR is an exterior angle of the triangle DCE
Solving For Exterior Angles:To find the value of an exterior angle, we must sum up the two opposite (corresponding) angles inside the triangle
In this case, 2x + 7 and 26 are the corresponding angles
Solve:6x - 7 = 2x + 7 + 26
4x - 7 = 7 + 26
4x = 14 + 26
4x = 40
x = 10°
Your answer : x = 10°-Chetan K
Brent went for a bicycle ride. The clocks show his start time and his
end time. How long did Brent ride his bicycle?
Answers
Answer:
He rode his bicycle for 40minutes
Hope it helps:)
I will give brainliest to first person who answers this question.
Answers
What is the answer of this : 3+5-9*6/2
Answers
Answer:
3+5-9*6/2
3+5-9*3
3+5-27
8-27
-19
A certain monthly magazine has both print and online subscribers. Print subscribers are people who pay to have the magazine physically delivered to them each month. Online subscribers are people who pay to have access to the electronic version of the magazine. The editors of the magazine want to study how online subscribers feel about the design of the electronic version, and they will gather data from a sample. Which of the following is a sample of the population of interest?
a. 50 subscribers to the magazine
b. 50 print subscribers
c. 50 online subscribers
d. 50 people who buy a copy of the magazine at a newsstand
e. 50 people who find an article in the magazine while searching online
Answers
The sample population of interest is 50 online subscribers.
Sample population of interest is said to be the total number of people one is considering for a particular study. In this question, online subscribers. This means the total people being considered for making the particular study.
to learn more, visit https://brainly.com/question/16720016
Can someone please help me with this question.
Thank you.
Answers
Answer:
okay so..
Given
<2 = 110°
• <2 = <4 so <4 = 110°
Step-by-step explanation:
Solution
• <4 is equal with it's front facing angle(the angle next to <1) let's call that angle <x
<4 = <x = 110°
<x + <1 = 180°
110° + <1 = 180°
<1 = 180° - 110°
<1 = 70°
• <4 + <3 = 180°
110° + <3 = 180°
<3 = 180° - 110°
<3 = 70°
Where is the velocity positive?
х
C D
E
B
А
F G
A. B-E
B. C-D
C. A-C
D. B & E
Answers
Answer:
A-C
Step-by-step explanation:
Positive velocity means the graph is going up. Hope it helps!
#HaveAnAmazingDay
[tex]GraceRosalia[/tex]
Choose the algebraic expression that matches the phrase below.
h increased by 5
Answers
Answer:
h + 5
Step-by-step explanation:
increased = add so yeah...
Does anyone else have people like these comments this ? I can’t report them either
Answers
Answer:
yes and i hate it, you cant report some of them cause they get deleted automatically.
Step-by-step explanation:
add the expression (1/4x - 4 + 2y) + (2/5x + 5 - 4y)
Answers
Answer:
= 13/ 20 x − 2y+1
Here's your answer, I hope you enjoy.
HELP HELP WILL MARK BRAINLIEST
Answers
Answer:
b. 10a³ - 11a - 3
Step-by-step explanation:
1. Expand 3(a³ - 2a - 5)
= 3a³ - 6a - 15
2. Add 7a³ - 5a + 12 and 3a³ - 6a - 15
7a³ + 3a³ = 10a³
-5a + -6a = -11a
12 + -15 = -3
3. Answer: b. 10a³ - 11a - 3
20x+75=35x+30 help
Is due tomorrow
Answers
Answer:
[tex]x[/tex] = [tex]3[/tex]
Step-by-step explanation:
Use an Algebra Calculator
answer is x=3 , formula is in the attachment
the quotient of 8 and y
Answers
Answer:
"The quotient of 8 and y" is written as the following algebraic expression:
8÷y
Expand the following
Answers
Answer:
a) 4x+4
b) 7x-14
c) 12x +18
d) 10x-10y
Answer:
4x+4
7x-14
12x+18
10x-10y
Step-by-step explanation:
1. What percent of 56 is 14?
Answers
Answer:
25
Step-by-step explanation:
14 ÷ 56 × 100
Bob spent x amount on food. Bill spent x+20, and John spent 3x-2. If bill and John spent the same amount of money, how much dud bob spend?
Answers
[tex]\\ \sf\longmapsto x+20=3x-2[/tex]
[tex]\\ \sf\longmapsto 3x-x=20+2[/tex]
[tex]\\ \sf\longmapsto 2x=20[/tex]
[tex]\\ \sf\longmapsto x=10[/tex]
Bob spent 10$
Nick has 4 times as many partners as Gabriel, Leo has half as many partners as Nick.
Altogether, they have 28 partners. Explain how many partners Gabriel has.
Answers
Gabriel has 4 partners.
When you take the 4 and multiply it by 4, you get 16 where you'd take half of the 16 and add it to it. So you'd have 16 + 8 where it equals 24 and then add the original 4 and you get 28.
Above explaination is awesome!
step by step explanation of
((3^-1)^-2 -2^3)^-1
Answers
Answer:
SEARCH MO PARA MALAMAN MO HEHE
What is the solution to the equation? ^5 /x+ 7= -2
Answers
Answer:
x=19/2
Step-by-step explanation:
5/x+7=-2
5=-2(x+7)
5=-2x-14
5+14=-2x
19=-2x
Therefore
2x=-19
x=19/2
10. If you can travel 97 miles in 30 minutes, how many mileScan you
travel at the same rate in 8 hours?
Answers
Explanation: you want to set up a proportion
Ex:
97 X
—- x —
30. 480
The way I got 480 was I converted 8 hours into minutes because you want the same value of measurement.
After this, just cross multiply and you get the equation
46560 = 30mile
Then just isolate the miles (because you are trying to solve for 1 mile
Miles = 1,552
30 minutes is half of an hour so first you need to multiple 8•2 then you multiple 97 by what 8•2 is (16) that gets you 1552
Solve 5x + 2 = 22
Solve 2x-5=7
Solve 2x+5=12
Answers
Answer:
x = 4
x = 6
x = 7/2
Step-by-step explanation:
Solve 5x + 2 = 22:
5x+2-2=22-2 (subtract 2 from both sides)
5x=20
x=4
Solve 2x-5=7
2x-5+5=7+5 (add 5 to both sides)
2x=12
x=6
Solve 2x+5=12
2x+5-5=12-5 (subtract 5 from both sides)
2x=7
x= 7/2
=> 5x + 2 = 22
=> 5x = 22 – 2
=> 5x = 20
=> x = 20/5
=> x = 4
Solve 2x-5=7=> 2x - 5 = 7
=> 2x = 7+5
=> 2x = 12
=> x = 12/2
=> x = 6
Solve 2x+5=12=> 2x + 5 = 12
=> 2x = 12-5
=> 2x = 7
=> x = 7/2