Answers
Answer: You should solve by equal method not substitution. y=7 x=2
Step-by-step explanation: Equal value method is when two things equal each other and in this case both 3x+1 and 5x-3 equal y so they also equal each other. 3x+1=5x-3 add 3 to each sides
3x+4=5x subtract 3x from each side
4=2x divide by 2
x=2 solve for y=3x+1
y=3(2)+1
y=7
Related Questions
Review Section:
1) Find the x- and y-intercept for the line:
-6x + 2y = -24
Answers
Answer:
x-intercept = (4,0)
y-intercept = (0,-12)
HELP! WORTH 25 POINTS. Which sets of ordered pairs represent functions from A to B? (Select all that apply.)
A = {0, 1, 2, 3} and B = {−2, −1, 0, 1, 2}
A. {(0, 2), (3, 0), (1, 1)}
B. {(0, 0), (1, 0), (2, 0), (3, 0)}
C. {(0, −1), (2, 2), (1, −2), (3, 0), (1, 1)}
D. {(0, 1), (1, −2), (2, 0), (3, 2)}
Answers
Answer:
C. {(0, −1), (2, 2), (1, −2), (3, 0), (1, 1)}
hope it helps you
evaluate the function when x = -3
Answers
Answer:
10
Step-by-step explanation:
f(-3)=-2(-3)+4=6+4=10
A rectangular pool at Andy's gym measures 25 meters by 50 meters. How many meters would Andy swim in order to swim diagonally across the pool?
Answers
Answer:
625 meters
Step-by-step explanation:
25 multiplied by 50 equals 1250 divided by 2 is 625 meters.
Find the quotient. 42j4k2 ÷ (-3j3k)
Answers
Answer:
(-14) (4/3k) = -56k/3
Step-by-step explanation:
42/-3 = -14
j/j = 1, so j "cancels"
4k²/3k = 4/3k
Answer:
-14jk
Step-by-step explanation:
3
The diagram represents a portion of a small city. Maple Street and Pine
Street run exactly east to west. Oak Avenue runs exactly north to south.
All of the streets remain straight.
Answers
All the statements that must be true are in options [tex]A, B, D, E[/tex].
What are parallel lines?Parallel lines are those line which never intersect and maintains a constant distance.
We have,
From the given diagram,
Maple Street and Pine Street run exactly East to West.
And,
Oak Avenue runs exactly North to South.
Now,
From the given diagram,
A. Birch street and Elm street intersect at right angles. - True
B. Maple Street and Pine Street are parallel. - True
D. Pine Street intersect both Birch street and Elm street. - True
E. Oak Avenue and Maple Street are perpendicular. - True
Hence we can say that all the statements that must be true are in options [tex]A, B, D, E[/tex].
To learn more about parallel lines click here
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3√(64x^9y^3)^4. Simplify the expression.
Answers
Answer:
[tex]2x^{2}y[/tex]
Step-by-step explanation:
somebody help me ASAP!!! No joking
Answers
Answer:
it is given that. a^2 + b^ 2 = c^2
then we need to find b
then formula will
b= √(c^2 - a^2)
hence 3600 - 1296
=. √{ 1296}
=. 48
can someone please help me
Answers
Answer:
A. 3*6-4-4
Step-by-step explanation:
He starts with 3 rows of 6 eggs, which can be shown in the formula 3*6, and each time he is taking away 4 eggs and hew does that twice so the only logical explanation is A. 3 x 6 - 4 - 4.
The area of square ABCD is 144 square units. The area of square EFGH is 64 square units. H∈ AB and G∈ BC . The blue area is three times the red area. Find the area of △HBG.
Answers
Answer:
24
Step-by-step explanation:
RSM
Which expression is equivalent to -2(x - 5) - 9x?
11x - 5
7x + 10
-11x - 5
-11x + 10
Answers
Answer:
-11x+10
Step-by-step explanation:
-2(x-5)-9x
Distribute:
-2x+10-9x
Combine like terms:
-11x+10
Hope this helps!
-11x + 10 is the answer
daniel has $50 saved and makes $7.50 per hour working how much money would daniel have after working 10 hours
Answers
For the expression 2 x squared + 28 x + 93 Over (x + 6) cubed, which sum represents the correct form of the partial fraction decomposition?
Answers
Answer:
Option-3
Step-by-step explanation:
got-it-lol
also-keyboard-broke:(
anyone tell me the answer
Answers
Answer:
a. Pop
b. 30 CDs
c. 230 CDs
Step-by-step explanation:
Given that "O" represents 20 CDs
a. The CD that was the mode is the CD that has as much "O", which is Pop.
Mode = Pop
b. Number of Rock CDs = 3 × 20 = 60 CDs
Number of Classical CDs = 1½ × 20 = 30 CDs
Therefore, 30 more CDs of Rock were sold than Classical CDs were sold
c. Pop = 5*20 = 100 CDs
Jazz = 2*20 = 40 CDs
Classical = 1½*20 = 30 CDs
Rock = 3*20 = 60 CDs
Total sold altogether = 100 + 40 + 30 + 60
= 230 CDs
The store Matilda works at bought a pair of leggings for $12. They plan on selling them for $20. What percent are the leggings marked up?
Answers
Answer:
67%
Step-by-step explanation:
difference between the numbers = $8
8 ÷ 12 X 100 = 67%
MY MOOOD RIGHT NOW
Ooh-ooh
Ooh-ooh
Ooh-ooh, ooh
Up in your room once again, tempted
Bad for me, it's the truth, but I can't miss this
Don't tell my friends that I'm here to visit
Don't tell my friends that I'm here (mm-mm-mmm, yeah)
Waiting for you, even how you treat me
You're my baby even when you leave me
Maybe I'm the one to blame
Maybe I'm the cause of the pain
Waiting for you, even how you treat me
You're my baby even when you leave me
Maybe I'm the problem and the one that's causing all of this
I can't say I love you no more (more)
'Cause my friends gon' judge me for sure (sure)
It took some time but I realized
You do me wrong but it feels right
I can't say I love you no more (more)
'Cause my friends gon' judge me for sure (sure)
It took some time but I realized
You do me wrong but it feels right
Feels like I'm stuck on you
Answers
Answer:
nice dude keep it up ☺️
70.3 rounded to one decimal place
Answers
Answer:
The answer will be 70
Step-by-step explanation:
Hope this Helped
9514 1404 393
Answer:
70.3
Step-by-step explanation:
The number already has one decimal place. No adjustment is needed.
70.3
Cosx=4/5 what is sin2x cos2x and tan2x
Answers
Answer:
-24/5
Step-by-step explanation:
The solution to the problem is as follows:
cscx < 0 means 1/sinx < 0, or sinx < 0.
sinx = -3/5 because you're dealing with a 3-4-5 triangle, and we established
sinx is negative.
sin2x = 2sinxcosx = 2*-3/5*4/5 = -24/25
cos(2x) = cos^2(x) - sin^2(x) = 16/25 - 9/25 = 5/25 = 1/5
tan2x = sin2x / cos2x = -24/5
Which of the following expressions are equivalent to 7×7×7×7 ? Select all that apply.
A)47
B)74
C)77
D)28
E)2,401
F)16,384
Answers
If f(x) = 11 - 6(x - 8), what is f(-3)?
Answers
Answer:
We conclude that:
[tex]f\left(-3\right)=77[/tex]Step-by-step explanation:
Given the function
[tex]f(x) = 11 - 6(x - 8)[/tex]
Important Tip:
In order to determine f(-3), all we need is to substitute x = -3 in the function equationsubstitute x = -3 in the equation
[tex]f(x) = 11 - 6(x - 8)[/tex]
[tex]f(-3) = 11 - 6(-3 - 8)[/tex]
[tex]f\left(-3\right)\:=\:11-\left(-66\right)[/tex]
[tex]f\left(-3\right)\:=\:11+66[/tex] ∵ Apply rule -(-a) = a
[tex]f\left(-3\right)=77[/tex]
Therefore, we conclude that:
[tex]f\left(-3\right)=77[/tex]can you solve this.
Answers
Answer:
a = 45°
Step-by-step explanation:
2a + a + a = 180°
4a = 180°
4a ÷ 4 = 180° ÷ 4
a = 45°
a ferris wheel can accomidate 65 people in 25 minutes
how many people can ride the ferris wheel in 5 hours
Answers
Answer:
325
Step-by-step explanation:
I dont know how to explain it
Hannah spends $4.50 each day to buy lunch at her school. After school each day, she buys the same snack. Hannah spends $28.75 for lunch and snacks each week. The equation and solution model the situation.
5 (4.50 + x) = 28.75; x = 1.25
What does the solution, x = 1.25, represent?
the total cost of snacks for the week
the cost of each snack
the total amount of lunch for the week
the amount she spends each day for lunch and snack
Answers
Answer:
The cost of each snack
Step-by-step explanation:
Because if we are using what makes sense and what doesnt it would not be that much for lunch each week and it wouldnt be for the day so it must be the cost of each snack
Answer:
Step-by-step explanation:
B, the cost of each snack
8TH GRADE MATHHH
PLEASE HELPP
Answers
Answer:
x = 36°
Step-by-step explanation:
There are 180° on a line so 180° - 126° = 54°
54° is one of the angles and so is 90° (because it is a right angle)
Therefore, now we know that x = 180° - (54° + 90°)
54° + 90° = 144°
180° - 144° = 36°
x = 36°
Answer:
x = 36
Step-by-step explanation:
solution:
we have given,
in the right angled triangle.
exterior angle = [tex]126^{o}[/tex]
we know,
exterior angle = sum of interior non adjacent angle
so, [tex]126^o[/tex] = [tex]x + 90^o[/tex] [∵ one angle of right angled triangle is [tex]90^o[/tex]]
or, [tex]x = 126^o - 90^o\\[/tex]
or, [tex]x = 36^o[/tex]
hence, the value of x is [tex]36^o[/tex]
2x²-26x+84 (Factor COMPLETELY)
Answers
[tex]\tt{} {2x}^{2} - 26x + 84[/tex]
[tex]\tt{}2 {(x}^{2} - 13x + 42)[/tex]
[tex]\tt{}2 {(x}^{2} - 6x - 7x + 42)[/tex]
[tex]\tt{}2( x \times (x - 6) - 7(x - 6))[/tex]
[tex]\tt{}2(x - 6) \times (x - 7)[/tex]
Find the measure of x in the right triangle.
X
21
2
Answers
Answer:
I'm not sure if this is the right answer b/c ur question is too vague but the answer is x = 67
Step-by-step explanation:
x + 21 + 2 = 90
x + 23 = 90
- 23 - 23
x = 67
The scatterplot below was created from a table of values and represents the relationship between the number of seconds spent doing sit-ups and the number of sit-ups completed for some of the members of a physical education class.
Assuming that none of the data points overlap and that all the data points were plotted, how many data points were in the table?
A.5
B.6
C.7
D.8
Answers
Answer:
The correct answer is D. 8
Step-by-step explanation:All you have to do is count the data points on the graph.
Have a good day and stay safe!
There were 8 data points in the table.
Option D is the correct answer.
We have,
From the graph of the scatterplots,
We can consider the points as the coordinates:
(10, 15)
(20, 20)
(20, 30)
(20, 40)
(25, 30)
(30, 35)
(35, 45)
(45, 49)
Now,
There are 8 coordinates from the graph.
This means,
There are 8 data points plotted on the graph of the scatterplot.
Thus,
There were 8 data points in the table.
Learn more about coordinates here:
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Find the value of r(q(-5)).
Answers
Answer:
=−5qr
Step-by-step explanation:
Solve for the missing side
Answers
Answer:
8 ft
Step-by-step explanation:
By Pythagoras Theorem
[tex]x = \sqrt{ {10}^{2} - {6}^{2} } \\ \\ x = \sqrt{100 - 36} \\ \\ x = \sqrt{64} \\ \\ x = 8 \: ft[/tex]
Answer: It's 8 :)
Step-by-step explanation: Do the Pythagorean Theorem. a^2 + b^2 = c^2. In every case, c is the hypotenuse, so you do 10^2 = 6^2 + x^2. Then, it becomes 100 = 36 + x^2, then subtract 36 and you get 64. Then, you square root both sides to get 8. Have a great day!
6 - 3x = -6 PLEASE ANSWER FAST I NEED HELP!!!
Answers
Answer:
4
Step-by-step explanation:
Subtract 6 to both sides so you can get -12. Next divide -3 from x and -12. Finally your answer should be positive 4. Mark me brainily please if it is correct