Answer:
8
Step-by-step explanation:
First, solve the left side by adding/subtracting all the x's. 5x + 4x - 6x = (5+4-6)x = (9-6)x = 3x
Then if 3x=24, x must be 8.
Solve for w: 4w^2+49=-28w
Answer:
Fraction form: -7/2
Decimal form: -3.5
Move all terms to one side
4w^2 + 49 + 28w = 0
Rewrite 4w^2 + 49 + 28w in the form a^2 + 2ab + b^2, where a = 2w and b = 7
(2w)^2 + 2(2w)(7) + 7^2 = 0
Use the Square of Sum: (a + b)^2 = a^2 + 2ab + b^2
(2w + 7)^2 = 0
Take the square root of both sides
3w + 7 = 0
Subtract 7 from both sides
2w = -7
Divide both sides by 2
w = -7/2
a number x is at most -10
Answer:
give equation plz
Step-by-step explanation:
How do u solve this equation 2x-(-8)=14
Answer:
3
Step-by-step explanation:
Brainliest if helpppp
Answer:
Step-by-step explanation:
<NOC is 31 because it is a vertical angle to <BOK, which is also 31
<DOC is 62 because it is two times the bisected <NOC. 2*31=62
<DON is 31 because it is the bisected angles <DON and <NOC are equal.
<TOC is 118 because <KOT and <NOC are both 31 degrees. Since they lie on a line together, the three angles should add up to 180 degrees. 180-31-31 = 118
I hope this helps! :)
When a graph is PROPORTIONAL that means_________________________________.
A. It passes through the origin.
B. it DOES NOT pass the origin
help please
Solve the problem by multiplying first.
Jamian bought a total of 35 bagels and donuts for a morning meeting. He paid a total of $36.25. Each donut cost $0.75 and each bagel cost $1.25. The system of equations below
models this situation, where b is the number of bagels and d is the number of donuts. How many of each did Jamian buy?
b+d=35
1.25b+0.75d=36.25
Answer:
35 bagels
Step-by-step explanation:
Duh
need help plz and thank u today my brain is not working :(
Answer:
20% increase
Step-by-step explanation:
Answer: 20% increase!
Step-by-step explanation:
$60-$50= $10 Increase
10/50*100% = 20%
hope this helped, have a nice day! :)
Please help
Find the value of x.
Answer:
[tex]x = 37[/tex]
Step-by-step explanation:
[tex]2x + 1 = 75[/tex]
[tex]2x = 75 - 1[/tex]
[tex]2x = 74[/tex]
[tex] \frac{2x}{2} = \frac{74}{2} [/tex]
[tex]x = 37[/tex]
convert 2 1/3 into a mixed number
Answer:
2 1/3 is a mixed number!
Step-by-step explanation:
PLEASE HELPPPPP
M=2
N=16
P=1/3
Answer:
4
Step-by-step explanation:
Based on the information you have given me, p = 1/3.
All we need to do is substitute that value into the expression:
12p = 12(1/3) = 4
Stefan sells Jin a bicycle for $138 and a helmet for $16. The total cost for Jin is 40 % of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally?
Answer:
The original cost is
$385
Step-by-step explanation:
Step one:
given data'
cost of bicycle= $138
helmet = $16
Total cost = 138+16= $154
Step two:
let the original cost be x
we are told that 40% of x= 154
hence
40/100*x= 154
0.4x=154
divide both sides by 0.4
x= 154/0.4
x=$385
A grocery store wants to examine the relationship between the sales amounts each day at two different locations, store A and store B. The sales amount each day, in dollars, was recorded for 10 days at each store. The least-squares regression line is yˆ=−3,000+1.2x, where x represents the sales amounts each day at store A and y represents the sales amounts each day at store B. If the mean of the 10 sales amounts for store B is $45,000, what is the mean of the 10 sales amounts for store A?
Answer:
The mean of the 10 sales amounts for store A is $40,000.
Step-by-step explanation:
Given;
yˆ= −3,000 + 1.2x ...................... (1)
Where;
x = sales amounts each day at store A or the mean of the 10 sales amounts for store A = ?
yˆ = sales amounts each day at store B or the mean of the 10 sales amounts for store B = $45,000
Substituting y = 45,000 into equation (1) and solve for x, we have:
45,000 = −3,000 + 1.2x
45,000 + 3,000 = 1.2x
48,000 = 1.2x
x = 48,000 / 1.2
x = 40,000
Therefore, the mean of the 10 sales amounts for store A is $40,000.
Please help me!! Giving brainliest
answer:
9
basically whatever is in between the lines make it a positive!
heres another example
|-9|
= 9
|1|
= 1
Answer: 9 (nine) is the natural number following 8 and preceding 10.
I hope this is what you need. Sorry if it isnt
Step-by-step explanation:
Have a good night
Wilson paints 40% of a bookcase in 20 minutes how much more time will it take him to finish the bookcase?
Answer:
30 minutes
Step-by-step explanation:
First you can break down the percent and the time into a fraction
You can divide it by 2
so 2%/1 (2% in 1 minute)
Then you find the amount of time it would take to paint the whole bookcase
2 * 100 = 50
So time to paint the whole bookcase would be 50
50 - 20 = 30
Answer:
30 minutes
Step-by-step explanation:
He paints 40% of the bookcase in 20 minutes.
The rest of the bookcase is 100% - 40% = 60%.
60% of the bookcase still needs painting.
40% is to 20 minutes as 60% is to x minutes
40/20 = 60/x
Reduce the fraction on the left side.
2 = 60/x
Multiply both sides by x.
2x = 60
Divide both sides by 2.
x = 30
Answer: 30 minutes
please help this is due by midnight
Answer:
41
Step-by-step explanation:
complementary angle = sum of 90°
so 49 + 41 = 90
Answer:
41
Step-by-step explanation:
49+41=90
Mateus created a matrix using the elements below. What type of matrix did Mateus create? a diagonal matrix a square matrix a zero matrix an identity matrix
Answer:
B. a square matrix
Step-by-step explanation:
Because diagonal matrix are those matrix having non zero elements only on diagonal and rest all are zero.
Square matrix are those having number of rows equal to number of columns.
Zero matrix is a matrix having all elements equals to zero.
Identity matrix are those matrix having one only on diagonal and rest all elements are zero.
How do I solve this equation?
Answer: Press windows and search up snip and sketch the open and take a screen shot
I need help with this ASAP!!!!!
Olive is going to buy a scooter that costs $95. The sales tax rate is 8.5%. What is the total cost of the scooter including tax to the nearest cent?
Answer:
$103.08
Step-by-step explanation:
The total cost of the scooter including tax to the nearest cent will be $103.08.
What is the percentage?The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.
Olive is going to buy a scooter that costs $95. The sales tax rate is 8.5%.
The amount of the sales tax will be
Sale tax = 8.5% of $95
Sale tax = 0.085 × $95
Sale tax = $8.075
The total cost of the scooter including tax to the nearest cent will be
Total cost = $95 + $8.075
Total cost = $103.075 ≈ $103.08
The total cost of the scooter including tax to the nearest cent will be $103.08.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
the water level in Noah's water tank is 72 inches high. Noah begins to drain a water tank by opening a valve. the water drains at the speed of 5 inches per minute. what is the slope?
Answer:
An equation of slope:
y = -5x+72
Step-by-step explanation:
The equation of slope intercept is given by:
where m is the slope and c is the y-intercept or initial value.
Let x represents the time in minutes and y represents the height of the water level
As per the statement:
The water level in Noah's water tank is 72 inches high.
At x = 0
y= 72
It is also given that:
The water drains at a speed up 5 inches per minute.
Here, m represent the slope in inches per minute
(as the water drains)
Substitute in [1] we get;
y = -5x+c
Substitute x = 0 then;
72 = -5(0)+c
72 = c
⇒equation becomes: y = -5x+72
Therefore, an equation of slope is y = -5x+72
Divide (5x + 6x^3 - 8) ÷(x - 2) PLEASE HELP DUE IN 5 MINUTES
Answer:
6x^2+12x+29+50/x-2
Step-by-step explanation:
IF YOU ANSWER YOU ARE THE BEST
Answer:
yellow
Step-by-step explanation:
im not sure what its asking so im guessing what the point is
(3x)2
Simplify
(3x) -3
Answer:
9r
Step-by-step explanation:
recursive sequence.
A sequence has f(1)=120, f(2)=60
-Help find the next 2 terms and what goes into the blank pls.
Answer:
f(3)=0, f(4)=-60
f(n) = f(n-1) + (-60)
Step-by-step explanation:
Arithmetic Sequences
The arithmetic sequences are identified because any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.
The equation to calculate the nth term of an arithmetic sequence is:
f(n)=f(1)+(n-1)r
Where
f(n) = nth term
f(1) = first term
r = common difference
n = number of the term
The given sequence has two known terms: 120, 60, ...
The common difference is found by subtracting consecutive terms:
r = 60 - 120 = -60
Thus the next two terms are:
f(3)=120+(3-1)(-60)=120-120 = 0
f(4)=120+(4-1)(-60)=120-180 = -60
Since each term is calculated as the previous term plus -60, then the recursive formula is:
f(n) = f(n-1) + (-60)
Mr. Webb gave his wait a $5.60 tip on a $40 bill.
What percent did he give the waiter?
And can you explain how you got that answer?
Answer:
14% tip
Step-by-step explanation:
tip: $5.60 on $40
40-5.60=34.4
36.6/40x100
86%
=(100-86)
=14%
I need help with a math problem
Answer:
I'm pretty sure that X=3
Josie has 4 books and a pencil box in her backpack. Each book weighs 12.235 ounces and the pencil box weighs 8.25 ounces. How much do the contents of Josie's backpack weigh?
Answer:
57.55 ounces
Step-by-step explanation:
Given data
Each book weighs 12.235 ounces
Hence the weight of 4 books is
=12.235x4
=49.3 ounces
Each pencil weighs 8.25 ounces
Hence the weight of 4 books is
=8.25x1
=8.25ounces
Total weight is
=49.3+8.25
=57.55 ounces
In the walk-a-thon, Ramon walked 24.6 miles and
Elsie walked 25.5 miles. Who walked further,
Ramon or Elsie?
Answer:
Elsie
Step-by-step explanation:
It's kinda obvious
Answer:
Ramon
Step-by-step explanation:
Ramon walked further
What is...
2 + 2?
yes this is for easy points
Answer: 4?
Step-by-step explanation: hehe
(is brainliest to much to ask for?) THaNK YOU
Answer:
2+2=4
Thanks for points!! :)
What the equivalent distance between -13 and -4
Answer:
-8.5
Step-by-step explanation:
