Understanding:
First, let's try simplifying the first equation as much as we can. As you know, you can add, subtract, multiply, divide, etc on both sides of the equation and it will remain the same value. To simplify [tex]3x-5=16[/tex] we can simply add 5 to both sides to cancel the -5 on the left-hand side. That will give us [tex]3x-5 +5=16+5[/tex], notice we added the 5 to both sides. The +5 cancels -5 and 16+5 is 21, which evaluates to [tex]3x=21[/tex]. And this equation looks familiar, it's our second equation actually. That's why both equations are the same, and in that x value that makes the first equation true, it will also do the same for the second equation. If you want to actually find the value of x which makes the equation true, you can simply divide the 21 on the right-side by 3 to make x coefficient equal to 1, [tex]\frac{3x}{3} =\frac{21}{3}[/tex], and that gives us, [tex]x=7[/tex]. When x is 7 both equations are true.
Answer:
We conclude that the second equation must also be true for the same value of x because the value x = 7 satisfies the 2nd equation too.
Step-by-step explanation:
Given the first equation
[tex]3x-5=16[/tex]
Add 5 to both sides
[tex]3x-5+5=16+5[/tex]
simplify
[tex]3x=21[/tex]
Divide both sides by 3
[tex]\frac{3x}{3}=\frac{21}{3}[/tex]
simplify
[tex]x=7[/tex]
Thus, x = 7 is a value that satisfies the first equation.
Now, put x = 7 in the 2nd question to check whether x = 7 satisfies the equation or not.
3x = 21
3(7) = 21 ∵ x = 7
21 = 21
Thus, x = 7 also satisfies the 2nd equation.
Therefore, we conclude that the second equation must also be true for the same value of x because the value x = 7 satisfies the 2nd equation too.
Help I’m struggling please respond fast I have 5 m
Answer:
whats your question
Step-by-step explanation:
Tom had $55.85. He bought a shirt for $14.86, pants for $25.88, and socks for $5.76. Explain (using a sentence) how Tom can estimate the amount of money he has left. Then find the estimate. Round your answer to the nearest dollar.
HURRY! I HAVE FINALS :(
Answer:
$9.35
Step-by-step explanation:
14.86+25.88+5.76=46.5
55.85-46.5=9.35
Answer:
The rounded number would be nine
Step-by-step explanation:
It would be nine because you convert 55.85 to 56 then convert 14.86 to 15 convert 25.88 to 26 and convert 5.76 to 6 then subtract all of that to get nine hope it helps
In the diagram below, determine the value of x:
9514 1404 393
Answer:
55°
Step-by-step explanation:
130° is an external angle to the small triangle at lower left, so is the sum of the remote interior angles. The unmarked interior angle at the bottom of that triangle is then 130° -30 = 100°.
That is an exterior angle of the large triangle that has remote interior angles of 45° and x°. So, ...
x° + 45° = 100°
x° = 100° -45°
x° = 55°
_____
Alternate solution
The sum of the interior angles of a quadrilateral is 360°. Three of the angles in the bounding quadrilateral are x°, 45°, 30°. The fourth is the reflex angle that is (360° -130°) = 230°. So, we have ...
x° +45° +230° +30° = 360° . . . . . angles CCW from lower right
x° = 360° -305°
x° = 55°
for g(x)=x²-x, find g(x) when x= -8
g(-8)=??
please help i have to finish this by 6 00 and its 5 23
Answer:
g(-8)= -8²-8= -64-8= g(-8)=-72
Step-by-step explanation:
Mike is reading a 1,620 page book. He reads 18 pages each day. Write and solve a division equation to find the number of days, d, it will take her to finish the book. *
Answer:
90 days.
Step-by-step explanation:
if he had to read a 1,620 paged book, and 18 pages a day, it would take him 90 days to read the book.
1,620 divided by 18 = 90
The equation x^3-3x=1 has a solution between 1.8 and 1.9. use a trial and improvement method to find this solution. give your answer correct to 2 decimal places.
HELPPPPPP I HAVE BEEN TRYING FOR AGES
Answer:
1.88 to 2 decimal places
Step-by-step explanation:
First, I plugged in 1.8 and 1.9:
1.8^3-3*1.8=0.432
1.9^3-3*1.9=1.159
Then, I plugged in 1.85:
1.85^3-3*1.85=0.78
Next, I plugged in 1.87 to get the answer closer to 1:
1.87^3-3*1.87=0.93
Finally, I plugged in 1.88 to get even closer to 1:
1.88^3-3*1.88=1.00
Hope this helps!
Answer:
Step-by-step explanation:
1.8=-0.568 is too small
1.9=0.159 is too big
1.87=-0.70797 is too small
1.88=0.004672 is too big
Next, I plugged in 1.87 to get the answer closer to 1:
1.87^3-3*1.87=0.93
Finally, I plugged in 1.88 to get even closer to 1:
1.88^3-3*1.88=1.00
1.875=-0.033203125 is too small
so it should be 1.88 to 2 decimal places
pls help asap!!!
[Image: Vertical number line ranging from negative 5 to 5.]
On this number line, zero represents sea level. Plot the following points based on the description provided.
description
• 2.5 below sea level
Answer:
negative 2.5
Step-by-step explanation:
It is belove sea level, so it will be between negative 2 and negative 3 on a vertical number line.
I need help pleaseeeeeeeeeeeeeee :3
Answer:
0.75
Step-by-step explanation:
From the attached question, we
3÷ 4
We are asked to find 3÷ 4
3 ÷ 4 = 3/4
We simplify further in other to get a decimal form
3/4 = 0.75
Diagram shows the distance-time graph of teo cars. FGHI shows the journey of car J from town K to town L. MGN shows the journey of car P from town L to town K. When did the two cars meet?
Answer:
1100 is when the two cars met
Step-by-step explanation:
the two lines intercept at 1100, 60km
Richard has 15 apples. He gave Pam 5/2 of them to bake a pie. How many apples did he give to Pam?
Answer:
2.5 or 2 1/2 apples.
Step-by-step explanation:
5/2 simplified will be 2.5 or 2 1/2.
If you look into it further, because Richard had 15 apples, you subtract 2 1/2 apples he gave Pam which would leave him with 12.5 or 12 1/2. But really the answer is two and a half apples.
What is the simplified expression for (-3c)2 a-4 bo?
Answer:
-6ca-4
Step-by-step explanation:
Answer:
9c2/a4
Step-by-step explanation:
HELP DUE IN 15 MINUETS!!!
y = - 2/3 x + 1 , which is the graph of this equation?
4x?x2=48
by the way i'm unsmart I just wanted to show my little brother how brainly works
Answer:
6
Step-by-step explanation:
So I assume it's 4 × x × 2 = 48
First multiply the like terms (4 x 2) and you'll get 8.
8 × x = 48
Then you 8 by the x and get 8x
8x = 48.
Lastly you'll just divide 48 by 8 and get 6.
Hope your brother understands how this works now! (It's basically legal cheating)
Answer:
6
Step-by-step explanation:
im not the smart too sorry
Christmas Special Before I ask you to Answer my Question
On the first day of Christmas my true love Ran From Me (My IQ)
Because of My Homework that I Still Need to Complete
On the second day of Christmas my true love Ditched me
Now I Have many Assignments to Complete
On the third day of Christmas my true love Forever Left me
Now I only Have C's and No Tv and a Slipper coming after me
On the fourth day of Christmas my true love that I havent Seen
Because of that I Have, No Brain Cells
Forgot How to Spell and All The Easy Assignments that I Have
That I can you to Make a boat overseas!
_____________________________________________________________
Now Im Gonna Ask you Can you please help me with these two Questions
Answer All , Correctly, Explained, Quickly and Have a Merry Christmas!
Answer:
6. 4
7. 0
Step-by-step explanation:
6. Slope of line that passes through (-1, -4) and (1, 4):
Slope = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{4 - (-4))}{1 - (-1)} = \frac{8}{2} = 4 [/tex]
7. Slope of line that passes through (1, 2) and (-3, 2):
Slope = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - 2)}{-3 - 1} = \frac{0}{-4} = 0 [/tex]
The population of town A increases from 1,346 to 1,500. In the same period, the population of town B increases from 1,546 to 1,800.
a. Find the percent of increase in population for town A and for town B.
b. Which town had the greater percent of increase?
please help
Answer:
C $44.99 is the answere
Answer:
there you go! 2 extra for you ⊂:
Step-by-step explanation:
Options are line ED, line EH or line CD
Answer:
ED and CF are paralell to eachother
What were the main important ideas in geometry that you studied in the first six weeks?
Answer:
The preceding chapter explored implications of research on learning for general issues relevant to the design of effective learning environments. We now move to a more detailed exploration of teaching and learning in three disciplines: history, mathematics, and science. We chose these three areas in order to focus on the similarities and differences of disciplines that use different methods of inquiry and analysis. A major goal of our discussion is to explore the knowledge required to teach effectively in a diversity of disciplines.
Step-by-step explanation:
The preceding chapter explored implications of research on learning for general issues relevant to the design of effective learning environments. We now move to a more detailed exploration of teaching and learning in three disciplines: history, mathematics, and science. We chose these three areas in order to focus on the similarities and differences of disciplines that use different methods of inquiry and analysis. A major goal of our discussion is to explore the knowledge required to teach effectively in a diversity of disciplines.
Pleaseeeee helpppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
40
Step-by-step explanation:
SF of KP to KN = 4
If LM = 32, then we would have to divide 32 by 4 in order to get the missing length of KL.
32 ÷ 4 = 8
Length of KL = 8
Length of LM = 32
Length of KM = 32 + 8 = 40
(5x+1)(x)=(x+5)(x+3)
Answer:
Factor out the results of each side First half: 5x^2 + xSecond half: x^2+3x+5x+15 =x^2+8x+15Combine results 5x^2+x= x^2+ 8x+154x^2 = 7x+15 x= -5/4 and 3Which of the following is NOT a limitation of the model?
A size of sun
B size of the planets
C distances between planets
D number of planets
Answer:
the answer to this question is option D mark me as brainliest
6(x-3)+10=(3x-4) NEED HELP ASAPP
Answers
#1 no solution
#2 All real answers
#3 3
#4 2
Answer:
=4/3 or 1 and 1/3
If it is not provided in the answer then put no solution.
Step-by-step explanation:
write the equation for (3,3) and (1,-3)
Answer:
y = 3x -3
Step-by-step explanation:
Find the slope first
Givens
y2 = 3
y1 = - 3
x2 = 3
x1 = 1
Equation
m= (y2 - y1)/(x2 - x1)
Solution
m = (3 - - 3) / (3 - 1)
m = (3 + 3) / 2
m = 3
Find the y intercept next
Use either point to find the y intercept
y = 3x + b
x = 3
y = 3
y = 3*3 + b
3 = 6 + b
-3 = b
Answer
y = 3x - 3
Please help I will mark branliest
Answer:
B
Step-by-step explanation:
30x = 30 minutes per day
Answer: D
(I might be wrong btw, srry)
Step-by-step explanation:
A and C aren't possible cause they suggest mintues. In your expression 30 is already the minutes. As for B which is really similar to D, it can't be either because it was only for this one season and not all.
Have a nice day :)
Select the correct answer. Fredrick manages a band and sings lead vocals. The band charges $700 per concert. Fredrick receives $175 of that money, and he shares the rest equally among the other 5 members of the band. How much money does each of the 5 band members receive per concert? A. $105 B. $112 C. $175 D. $525
Answer:
A. $105
Step-by-step explanation:
Given
total charge= $700 per concert
solution
If Fredrick receives $175 of that money, the balance will be
$700-$175= $525
The balance will be shared by the 5 members
Hence each of them will take
525/5=$105
Answer:
$105
I hope this helps
Write the equation of the graph shown below in factored form.
(the graph starts at the bottom left and continues up through the x axis at negative two to a maximum around y equals eight and goes back down through the x axis at one to a minimum around y equals negative four and back up through the x axis at three)
f(x) = (x + 2)(x − 1)(x − 3)
f(x) = (x − 2)(x + 1)(x + 3)
f(x) = (x + 2)(x + 1)(x + 3)
f(x) = (x − 2)(x − 1)(x − 3)
Answer:
f(x) = (x+2)(x-1)(x-3)
Step-by-step explanation:
f(-2) = 0, f(1) = 0, f(3) = 0. Therefore, (x+2), (x-1) and (x+3) are the factors
HELP ME PLEASEEEEEE ASAP I REPEAT HELPPP
Answer:
b
Step-by-step explanation:
denominator(5) stays the same
multiply 2 by 4 since that is 1 fourth of an hour.
So now its 8/5
5 goes into 8 1 time with 3 leftover
So the 1 is a whole number now
the leftover fraction 3/5
=1 3/5
Part A: What is the measure of line RV.
Part B: What is the measure of line PV
Answer:
RT=6.5
PV=7.3
Step-by-step explanation:
PLS ANSWER
Which number line represents the solutions to-2|x| =-6?
o
-8
8
pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee help
Answer:
there is nothing attached??
Simplify the expression.
347+429+437
1. 11 2/9
2. 12 2/9
3. 11 9/23
4. 12 9/23
Answer:
2. 12 2/9
Step-by-step explanation:
Because of the choices, I assume the three addends are mixed numerals:
3 4/7 + 4 2/9 + 4 3/7 =
= 3 + 4 + 4 + 4/7 + 2/9 + 3/7
= 11 + 7/7 + 2/9
= 11 + 1 + 2/9
= 12 2/9
Answer: 2. 12 2/9