Answer:
1. x = -7
2. n = 9
3. x = -2
Step-by-step explanation:
5x + 3 = -32
-3 -3
5x = - 35
÷ 5 ÷ 5
x = -7
__________________________________________________________
4 + [tex]\frac{n}{3}[/tex] = 7
-4 -4
[tex]\frac{n}{3}[/tex] = 3
× 3 × 3
n = 9
__________________________________________________________
x - 4/ 3 = -2
( x − 4 ) ⋅ 2 = 3 ⋅ ( x - 2 )
2x - 8 = 3x - 6
-2x -2x
-8 = x - 6
+ 6 +6
-2 = x
Hope this helped!
Answer:
1: -7 2: 9 3: -2
Step-by-step explanation:
First Equation. (You first want to isolate the variable)
5x + 3 = -32 (subtract 3)
-3 -3
5x = - 35 (divide by five)
x = - 7
Second Equation. (Isolate variable)
4 + n/3 = 7 (subtract four by each side to get rid of it on the variable's side)
-4 -4
n/3 = 3 (isolate n, so mutiple each slide by 3)
n = 9
Third Equation. (isolate again)
x-4/3 = -2 (mutiple each side by three to get rid of the three on variables side)
x-4 = -6 (add four to each side to cancel out four on the variables side)
x=-2
hope this helps!
PLEASE HELP I GIVE 20 POINTS!!!!
Which equation is a linear function? (Look at the photo I attached for the choices) please help me I am confused!
In 3/5÷3=1/5, the (blank) is 3. what is the blank supposed to be?
a) quotient
b) divider
c) divisor
Answer:
C) Divisor
Step-by-step explanation:
Dividend/Divisor=Quotient
Enter an equation in standard form to model the linear situation.
A bathtub that holds 28 gallons of water contains 18 gallons of water. You begin filling it, and after 5 minutes, the tub is full.
Two linear functions are displayed. Function One is represented by the graph:
The second linear function is y = -4x. Which statement is true about the slope of the two functions?
A) The slope of function one is positive and the slope of function two is negative.
B) Both functions have a negative slope.
C) Both functions have a positive slope.
D) Both functions have the same slope.
Answer:
Option A
Step-by-step explanation:
Function One is represented by the graph. We can see that the slope of the First Function is positive because the formula of slope is
[tex]Slope=\frac{Change\ in\ y}{Change\ in\ x} \\\\[/tex]
And we can see that in the graph the change in y and change in x are both positive as the function is increasing because if we see the graph closely,
When x = 1 the value of y = 2 and when x = 2 the value of y = 4 and when x = 3 the value of y = 6 so the values are increasing of x and of y hence the slope is positive and the value of slope is 2.
Now the Second Function which is y = -4x here the slope is negative because the slope-intercept form of the equation is .
[tex]y=mx+b[/tex]
and the second function is
[tex]y=-4x[/tex]
if we compare both these equations we get the value of m = -4 where m is also called the slope. So the slope of the second function is negative.
So
Option B is incorrect because the slope of the first function is positive
Option C is incorrect because the slope of the second function is negative
Option D is incorrect because the slope of the first function is 2 and the slope of the second function is -4
That leaves us with Option A which is correct, where we can see that the slope of the first function is positive and the slope of the second function is negative
Answer:
A) The slope of function one is positive and the slope of function two is negative.
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
We see that the 1st graph has a positive slope; as x increases, the y-value also increases. Therefore, the 1st graph must have a positive slope.
We are given the equation y = -4x as our second line. Using our y = mx + b form, we see that our slope m = -4. Therefore, the 2nd graph has a negative slope.
Our answer choice then would be A, as it is the only one that matches the descriptions.
prove that for any natural value of n the value of the expression (n+2)^2-(n-2)^2 is a multiple of 8.
Answer:
Se below
Step-by-step explanation:
Simplifying, using formula a^2 - b^2 = (a +b)(a - b)
(n + 2)^2 - (n - 2)^2 =(n + 2 + n - 2)(n + 2 - n + 2) =2n(4) =8nAs we see the resulting expression is multiple of 8
Find the range of the function
g(x) = -3x2 + 4 given the domain {-3, -2, 0, 1}
Answer:
is this what your looking for?
Step-by-step explanation:
Help please!! I has more mathematical junk needing answers, lol.
question in the photo.
pls...Solve n + 8 < - 9
Answer:
N+8<-9
subtracting 8 in both side
N+8-8<-9-8
N=-17
Step-by-step explanation:
n+8<-9
n< -9-8
n<-17 ans
Please help, I will give brainliest to best answer
Brainliest checklist:
-Must show work
-Must be correct
Answer:
060.28
Step-by-step explanation:
3 can't go into 1, but it goes into 18 six times with 0 left over. 3 goes into 0 zero times. 3 goes into 5 one time with 2 left over. 3 goes into 26 (because you pull the 6 down) 8 times with 2 left over.
Solve for w. Show your work.
( 36 ÷ 3 )( 2 x 6 ) = w
Answer: 144
Step-by-step explanation:
sorry, i have another math question. ugh! :(
Answer:
Y=1/2x-2
Step-by-step explanation:
this time actually awnser the question! or i will flagg yoi
Answer:
1
Step-by-step explanation:
Is (x + 2) a factor of x3 - x2 – x – 2?
A) Yes, the remainder is -12
B) No, the remainder is -12
C) Yes, the remainder is 0
D) No, the remainder is 0
PLZ HELP!!!! WILL MARK BRAINLYIST!!!!
Write an equivalent expression for 7 + 5 k minus 2 minus 3 k + n. Which statements are true about the steps for writing the equivalent expression? Check all that apply.
Combine the constant terms by adding 7 and –2.
The equivalent expression is 9 + 3 k.
n, 5 k, and negative 3 k are like variable terms.
Combine the like variable terms by adding the coefficients.
5 k and negative 3 k are like variable terms.
The constants 7 and –2 are like terms.
The equivalent expression is 5 + 2 k + n.
Combine the constant terms by adding 7 and 2.
Answer:
* 5+2k+n
Step-by-step explanation:
Combine all like terms:
7-2 = 5
5k-3k = 2k
n = n
can someone help me with a total budget thing that’s part of a road trip math project? (COMMENT IF YOU CAN PLS HELP ASAP)
Plss helpPPPPPPPPPPPPPPPPPppp
Answer:
5
Step-by-step explanation:
22.50/4.5 is 5
You can check this by doing 5x4.5=22.50
Hope this helps
Answer:
5 dollars
Step-by-step explanation:
divide money earned by hours of work
Please help me out as soon as possible!!
I will mark as brainliest for the correct answers given
Thankyou!!
Answer:
(C) 10
Step-by-step explanation:
The numbers inside are the difference between the numbers outside.
Look at the left figure.
6 = 10 - 4
8 = 18 - 10
14 = 18 - 4
Look at the middle figure to confirm this also works there.
Now apply it to the right figure.
? = 15 - 5
? = 10
Answer: (C) 10
Answer this question ASAP
(Please Don’t answer the question if you don’t know it or not sure what the answer is)
Ralphie uses a boat to move merchandise between two shipping ports. The boat can hold no more than 2,016 kilograms of merchandise. Ralphie already has 1,526 kilograms of merchandise loaded onto the boat and wants to load more boxes of merchandise that weigh 67 kilograms each. Which of the following inequalities could be used to solve for x, the number of boxes of merchandise that can still be loaded onto the boat?
A. 67x - 1,526 < 2,016
B.67x < 1,526
C.67x + 1,526 < 2,016
D.67x < 2,016
Answer:
The answer is 67x - 1,526 < 2,016.
Please help me I will give you the brain thing and extra points. (image below)
Answer:
A) 5 minutes
Step-by-step explanation:
What you’re looking for is where the two lines on the graph intersect, which is at 5 minutes. Therefore, they have filled the same number of barrels in 5 minutes
Samantha and Luis are attempting to determine the average number of library books that seventh-grade students check out at one time. Samantha surveys every other seventh grade student leaving the library. She samples a total of 40 of the 200 seventh graders. Luis samples 30 of the 200 seventh grade students at random in the school cafeteria. Whose sample is the most random?
Answer:
A
Step-by-step explanation:
Luis because the sample is taken from the population of all seventh graders.
Answer:
The answer is A your welcome ;)
Step-by-step explanation:
Select the fraction that will result in a larger product than 4,581 A. 8/8
B. 1/2
C. 13/15
D.13/8
HELP PLZ!! Will give brailiest!
Answer:
a- 1/4 x 2/1
b-2/1 divided by 5
Step-by-step explanation:
Answer:
I think B? hope this helps!
Please help me I will give you the brain thing and extra points. (image below) 27/30
Answer:
C. 0.07
Step-by-step explanation:
60/4.2 = 0.07
i need them all answered
Is y=0.3x proportional or non proportional?
Answer:
proportional
Step-by-step explanation:
Graph y = -2x + 5. HELP ME PLEASE
Answer:
FIrst you dot the y-intecpt which 5. Then you know the slope which is -2. SInce its -2 you have to go down and turn right
Step-by-step explanation:
brainliest 4 brainliest?
hi um can yall pls help me sorry im kinda horrid at math
Answer:
the answer is 1
Step-by-step explanation: