Answer:
Given
5(2x – 3) = x – 15 + 9xSolving for x
5(2x – 3) = x – 15 + 9x10x - 15 = 10x - 15Both sides are equal, any value of x is a solution, so infinitely many solutions
Step-by-step explanation:
[tex]5(2x - 3) = x - 15 + 9x \\ 10x - 15 = 10 x - 15[/tex]
Both the sides are equal
Hence no specific value of x
Therefore, x has infinite value.
A peice of fabric costs $5.29 a yard which is an estimated cost of 16.3 yards of fabric?
Answer:
90
Step-by-step explanation:
$5.29 * 16.3 = $86.227
=$86.23
86.23 could be rounded up to 90
Salena has twice as many DVDs as Jolene,and Jolene has one third as many as Brodie.What fraction of the total DVDs has Salena?
Answer: 1/3
Step-by-step explanation:
Assume Jolene's DVDs are x.
Selena has twice as many DVDs as Jolene so Selena has 2x DVDs.
Jolene has 1/3 as many DVDs as Brodie which means that Brodie has 3 times as many DVDs as Jolene which is 3x.
Total DVDs = x + 2x + 3x
= 6x
Salena has 2x.
Fraction = 2x/6x
= 1/3
Derek heard someone say that high school quarterbacks in Texas are almost all more than 6
feet tall. Derek wonders about the validity of that statement. He decides to collect some
data to estimate the mean height of high school quarterbacks playing in the state of Texas.
Since it is impractical to try to measure every quarterback’s height personally, Derek decides
to randomly collect a sample of the heights of 15 Texas high school quarterbacks.
The quarterback heights, to the nearest inch, Derek collected are:
69”, 72”, 75”, 68”, 70”, 67”, 75”, 73”, 69”, 71”, 74”, 75”, 68”, 70”, 73”
Using this data, estimate the population mean of the heights of high school quarterbacks in
Texas to the nearest inch
Answer: 71 inches
Step-by-step explanation:
plzz answerr!!!!
will mark as brainlist!!
Answer:
16160
Step-by-step explanation:
(2021#2020)= [tex]2021^2-2020^2=4041[/tex]
(2020#2019)=[tex]2020^2-2019^2=4039[/tex]
finally, (2021#2020)#(2020#2019)= [tex]4041^2-4039^2=16160[/tex]
help me again and explain how you got the answer thans
Use the table below to answer the following questions:
What is the slope? (Write only the number)
What is the y-intercept? (Write only the number)
Write a linear equation y=mx + b to represent the table:
Answer:
Y = x + 10
Slope - 1/2
y-intercept - (0,10)
Y = 2x + 12
slope 2/1
y intercept (0,10)
Y = 4 x + 14
Slope 4/1
Y intercept (0,14)
Step-by-step explanation:
Write the slope-intercept form of an equation of the line that passes through (a, - 4) is parallel to the graph of 4x - y = 2 y = - 1/4 * x + 4 y = 1/3 * x - 4 y = 4x - 4 D y = - 4 - 4
The first questions answer:
Given (0, -4), 4x - y = 7. I converted the equation into slope intercept form and I got: y = 4x - 7. Once I had gotten that I put (0, -4) and the equation into Point-Slope Form and solved it: y - (-4) = 4(x + 0), y + 4 = 4x, y = 4x - 4 is the slope intercept form of your equation and point :)
5 points
You went to go buy a PlayStation 5 that was on sale for 25% off. The
cashier adds tax the total your bill is $529.99. AFTER you take off the 25%
for the sale you pay the cashier $600, then how much change will you
receive back? Round to the nearest hundredth.
Answer:
70.01 so 70
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
600 - 529.99 = 70.01
70.01 is rounded to 70
Answer is 70
express 0.361 as a fraction
Answer:
361/1000
Hope I helped
Answer:
179/495
Step-by-step explanation:
x = 0.3616161.......... ---------------(I)
Multiply by 1000
1000x = 361.616161......
Multiply (I) by 10
10x = 3.616161........
1000x = 361.6161......
10x = 3.6161........ {Now subtract}
990x= 358
x = 358/990
x = 179/495
-2x2 - 5x + 4 when x = -3
Answer:
1
Step-by-step explanation:
-2x^2 - 5x + 4, x = -3
replace the x in the equation with -3
-2(-3)^2 - 5(-3) + 4
multiply/simplify
-2(9) + 15 + 4
-18 + 19
1
need the answer please thank you!
Answer:
a) 4/19
b) 15/19
c) 0 (0/19)
d) 1 (19/19)
Step-by-step explanation:
In the numerator you put the number of possibilities of your happy outcome. In the denominator you put the total number of possibilities. So the bag contains 4+15=19 marbles, so that will be your denominator in each answer.
please answer asap
25 points
Answer:
(-5,7) that will be your answer.
Consider the data set. 2, 3, 5, 6, 7
(a) Find the range.
(b) Use the defining formula to compute the sample standard deviation s. (Round your answer to two decimal places.)
(c) Use the defining formula to compute the population standard deviation σ. (Round your answer to two decimal places.)
Answer:
5 ; 2.07 ; 1.85
Step-by-step explanation:
Given the data:
2, 3, 5, 6, 7
The range : ( highest - lowest)
The range = (7 - 2) = 5
Sample standard deviation :
sqrt[Σ(x - m)²/ (n - 1)]
The mean (m) = Σx / n
n = sample size = 5
Σx / n ;
(2+3+5+6+7) / 5
= 23 / 5
= 4.6
[(2-4.6)^2 + (3-4.6)^2 +(5-4.6)^2 + (6-4.6)^2+ (7-4.6)^2] / (5 - 1)
= 17.2 / 4
= 4.3
Sqrt(4.3) = 2.07
Population standard deviation :
sqrt[Σ(x - m)²/ n]
The mean = m = 4.6
n = sample size = 5
[(2-4.6)^2 + (3-4.6)^2 +(5-4.6)^2 + (6-4.6)^2+ (7-4.6)^2] / 5
= sqrt(17.2 / 5)
= sqrt(3.44)
= 1.8547 = 1.85
If /II m, what is the value of x?
not enough information
43°
143
m
137
43
Answer:
X is 137.
Step-by-step explanation:
Because they are parallel, we can see that because of alternate exterior angles, the angle next to X is 43, and we subtract that from 180 which gives us x, or 137.
What property is used to rewrite (x + 2)(y + 4z) as y(x +2) + 4z(x + 2)?
Associative Property of Addition
Commutative Property of Addition
Distributive Property
Associative Property of Multiplication
Answer:
its either c or d I think
help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
the first one is B the second one is D and the last one is A
Step-by-step explanation:
I don't know how to solve this at all. please help
Answer:
5. 97
Step-by-step explanation:
Well, we know that all we have to do is add QRP and PRS. so 71+25 is 96 (but put 97). For the other one you can do 2x-5=x+1. Then you just solve for x. For the y value you do the same thing, 3y=5y+3. So, x=2 but y=1.5 but its not an answer choice... I know the second one didn't help you, sorry. :(
10. Solve for x.8x+2
Answer:
6
Step-by-step explanation:
70+60=130 180-130=50 50-2=48 48/8=6
Answer:
.................
Step-by-step explanation:
2y + 4 = 10
What is the first step in solving the
equation?
Answer:
Subtract 4 on both sides, then divide by 2 to find y
Step-by-step explanation:
Answer:
Its usually distribute or combine like terms but here we just solve.
Step-by-step explanation:
we do:
2y+ 4 = 10
-4 -4
----------------
2y 6
--- = ---
2 2
y = 3
2. Which equation shows the slope-intercept form of the line passing through
(0, 1) and (2, 0)?
A. y = -2X+1 B. y = x-1 C. y = 2X - 1 D.y=- x + 1
Suppose y varies directly with x. When
x is 3, y is 15. What is y when x is 10?
Answer:
Y= 30
Step-by-step explanation:
Because proportionally it makes sense as well as it multiplication.
the sum of two numbers is 58 and the difference is 2. What are the numbers ?
28 and 30 is the answer
Please help me im not asking for much
Answer:
adding the two equations together
(1.5,8)
Step-by-step explanation:
8x=12
x=1.5
y=8
Answer:Looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooool
Step-by-step explanation:
please awnser asap asap
9514 1404 393
Answer:
h > 0, only integers
Step-by-step explanation:
One can only buy integer numbers of packages of hotdogs, so the domain is integer values.
Since we "must" buy more than 0 packages, the appropriate domain specification is ...
h > 0, only integers
what is the correct solution to (x+2)(x+5)
Answer:
x^2+7x+10
Step-by-step explanation:
multiply the first by first and first by second
multiply the second by first and second by second
i 15 =
A -1
B 1
C -i
d i
Answer:
C. -i
Step-by-step explanation:
i^n is expondential. i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1.
Answer:
it is i
Step-by-step explanation:
The graph of a linear equation has a slope of -2 of passes through (-4,3)
A. y=-2x-5
B. y=-2x+5
C. y=-2x-2
D. y=-2x+5
And came someone explain how it’s fine if not
Answer:
I think D. y= -2x+5....
Which process would produce the complex number w2? Add 3 – i to w1. Add –9 + 3i to w1. Subtract 3 – i from w1. Subtract –9 + 3i from w1.
Answer
B.) Add [tex]-9+3i[/tex] to [tex]w1[/tex]
Step-by-step explanation:
Just took the test and D was wrong.
Joe wants to buy a game that cost $60. He already has $20 and makes $5 per dog he walks, how many dogs does he had to walk to make enough to buy the game
Answer:
8 dogs
Step-by-step explanation:
He already has $20 and the game costs $60.Each time he walks a dog he earn $5 so he needs to walk 8 more dogs(5×8=40)
Answer:
8 more dogs
Step-by-step explanation:
$60-$20 =$40
1 dog= 5 dollars
? =40 dollars
4o÷5=8
=8 dogs
Find the distance between the following points (1 , 6) and (13 , -3)
Answer:
15 units
Step-by-step explanation:
[tex]distance \: between \: 2 \: points \\ = \sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} } [/tex]
Using the formula above, distance
[tex] = \sqrt{ {(13 - 1)}^{2} + {( - 3 - 6)}^{2} } \\ = \sqrt{ {12}^{2} + {( - 9)}^{2} } \\ = \sqrt{144 + 81} \\ = \sqrt{225} \\ = \textbf{15 units}[/tex]