Answer:
x=8
Step-by-step explanation:
- 10x -12 = -12x + 4
-10x+12x=4+12
2x=16
x=8
x = 8
Explanation:- 10x -12 = -12x + 4Add 12x to both sides−10x − 12 + 12x = −12x + 4 + 12x
2x − 12 = 4
Add 12 to both sides2x − 12 + 12 = 4 + 12
2x = 16
Divide both sides by 22x / 2 = 16 / 2
x = 8- PNW
Maddie swims the hundred meter freestyle in 30 seconds what is her average speed in meters per minute
how many solutions does 3x+4=3x-2 have?
Answer: 2
Step-by-step explanation:
Answer:
No solutions.
Step-by-step explanation:
3x+4−3x=3x−2−3x
4=−2
4−4=−2−4
0=−6
0 does not equal -6, so there are no solutions.
can someone please help me
Answer:
12
Step-by-step explanation:
Challenge:A swimming pool has two inflows and one oulow. Determine their maximal flowspeed in swimming pools per hour if you know the following:Inially, the pool was full.Then, the oulow and one of the inflows were open for minutes.Aerwards, the pool was full.Next, both inflows and the oulow were open for minutes.Aerwards, of the pool was filled with water.Finally, the operator noced that the oulow was open the whole me so he could not fill upthe pool as fast as possible. He closed the oulow and in the next minutes, the pool became full.
Answer:
Swimming is a lot of fun, but drowning is a real danger. Even kids who know how to swim can drown, so let's find out how to stay safe in the water.
Why Is It Important to Be Safe in the
The length of the base of an isosceles triangle is x. The length of a leg is 4x-5. The perimeter of the triangle is 89. Find x.
7(5-4x) in distributive property
Answer:
Distributive Property : a(b+c)= ab+ac
7(5-4x) = (35-28x) ★(35-28x) is the right answer.In a lab experiment, 30 bacteria are placed in a petri dish. The conditions are such
that the number of bacteria is able to double every 6 hours. How many bacteria would
there be after 19 hours, to the nearest whole number?
After 19 hours the number of bacteria will be 193.8.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that in a lab experiment, 80 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 19 hours, to determine how many bacteria would there be after 17 hours, to the nearest whole number, the following calculation must be performed:
The number of bacteria will be calculated as,
30 x ((2/6) x 19) = X
30 x (0.34x 19) = X
30 x 6.46= X
193.8= X
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How do I find the rule of a linear table ?
Answer:
start by checking that it's a linear relationship that's occurring by having a look at the difference in our X in each step against the difference in our Y in each step.
Step-by-step explanation:
state if polygons are similar
The ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there? *
Answer:
36 females
Step-by-step explanation:
40 divided by 5 is 9
9 times 4 is 36
HELP PLEASE!!! *document*
Plz help!!
A concession stand sells 3 hot dogs for every 4 hamburgers. Hot dogs come in packages of 8.
How many packages of hot dogs does the owner need to buy if he predicts he will sell 256 hamburgers?
Answer:
The concession stand sold 46 hot dogs and 32 hamburgers.
Step-by-step explanation:
-10118
What is the equation of the line that contains point (6, 4) and is parallel to line m?
А
y = -2x +16
B
y = 2x - 8
с
1
y = -x +7
2
D
y =
Answer:
yes
Step-by-step explanation:
True or false: the following graph demonstrates a proportional relationship between y and x. Explain.
False, it doesn't cross through the origin and it's addition.
Tiana uses 1 3/5 oz of detergent for each full load of laundry. How many full loads of laundry can she do with 100 oz of detergent? Show your work.
Answer:
63 Full loads of laundry
Step-by-step explanation:
We have been told in the question that 1 3/5 oz or 8/5 oz of detergent is used for a full load of laundry.
So,
1 full load of laundry requires 8/5 oz of detergent
Then,
x full loads of laundry require 100 oz of detergent
100 = 8/5x
x = 100 * 5/8
x = 63 Full loads of laundry (to the nearest whole number)
dasdasdasdasdasdasdasdasdas.
Answer:
dodododododododo
Step-by-step explanation:
Answer:
Haha lol
Have a wonderful day!
Step-by-step explanation:
A straight line
has gradient 4
and
passes through the point (5, 23)
Work out the equation of the line.
Give your answer in the form
y= mx + c
Answer:
y=4x+c
23=4(5) +c
23=20+c
23-20=c
3=c
y=4x+3
Step-by-step explanation:
Answer: y=4x+7
Step-by-step explanation:
The dimensions of a standard tennis court are 36 ft. × 78 ft. with a net that is 3 ft. high in the center. The court is modified for players aged 10 and under such that the dimensions are 27 ft. × 60 ft., and the same net is used. Use similarity to determine if the modified court is similar to the standard court.
Answer:
Modified court is not similar to the standard court
Step-by-step explanation:
Given that :
Dimension of standard tennis court:
36ft by 78ft
Net height = 3 ft
Dimension of Modified Court :
27ft by 60ft
Net height = 3ft
To examine similarity :
We obtain the dilation factor for width and length :
(Standard court length / modified court length)
= 36 ft / 27 ft
= 4 / 3
Width :
Standard court width / modified court width)
= 78 ft / 60 ft
= 13 / 10
Since the dilation factor for the width and length are different, then we can conclude that the standard and modified court are not similar
In the function f(x) = (x^2 -6x + ___) + 20, what number belongs in the blank to complete the square?
Answer:
blank = -11
Step-by-step explanation:
The given function is :
[tex]f(x) = (x^2 -6x+x)+20[/tex]
We need to find the number x such that it forms the complete square.
If x = -11, then it will becomes,
[tex]f(x) = (x^2 -6x+(-11))+20\\\\f(x)=x^2-6x+9[/tex]
We can write it as follows :
[tex]f(x)=x^2-2(1)(3x)+(3)^2[/tex] ..(1)
We know that,
[tex](a-b)^2=a^2-2ab+b^2[/tex] ...(2)
Comparing (1) and (2).
[tex]f(x)=(x-3)^2[/tex]
So, if we put the blank equals -11, then it will become the perfect square.
Two pounds of peaches cost $4.5, 5 pounds cost $11.25, and 10 pounds cost $22.5. Show that the relationship between the number of pounds of peaches and the cost is a proportional relationship. Then write an equation for the relationship. Describe the proportional relationship in words.
Answer:
4.50/2=2.25
11.25/5=2.5
22.5/10=2.25
Step-by-step explanation:
Hope this helps ♡
If a° and b° are in linear pair, then a°+b°=?
Answer:
2
Step-by-step explanation:
Anything to the power of 0 would equal 1 so if you add them, you would get 2
Mr. Jones has 550 goats, which is 10% more than Mr. King has. How many more goats does Mr. Jones have than Mr. King?
Answer:
55
Step-by-step explanation:
Number of Jone's goats = 550
Let Number of King's goat = x
Jone's goat is 10% more than King's ;
Thus, number King's goat would be ;
x = 550 - (10% of 550)
x = 550 - 55
x = 495
x = Mr. King's goat
Hence, Jones goat is :
550 - 495 = 55 more than Mr King's goat.
Mr King has 55 goats
Number of goats owned by Mr Jones is 550
let y represent the goats owned by Mr King
y= 550-(10% × 550)
= 550- (0.1×550)
= 550 - 55
= 495
= 550-495
= 55
Hence Mr King has 55 goats than Mr Jones
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I don’t know this some one please help
Answer:
A
Step-by-step explanation:
Antonia: 150 x 12 + 4,500 = 6,300
Cal: 250 x 12 + 3,400 = 6,400
Which equation is equivalent to 60% of 25? Select all that apply.
A. 0.6 • 25 = x
B. X• 1.6 =25
C. 6/10 = x/25
D. 60/100 = 25/x
E. x/25 = 60/100
F. 6.0 • 25=x
Answer:
Step-by-step explanation:
60% of 25 is equivalent to:
A. 0.6 * 25 = x
Answer:
Step-by-step explanation:
A. 0.6 * 25 = x
F. 6.0 • 25 = x
A shoe store uses a markup rate 40% when determining the retail price of its items. If the store pays $42.25 for a pair of shoes wholesale, what will be the retail price of that pair of shoes?
Please help me for brainliest, a heart, and 5 star rating please!!!
Identify who made the error and what she did wrong.
1) Amelia made the error when she added 3.
2) Amelia made the error when she subtracted 4x.
3) Susie made the error when she subtracted 2.
4) Susie made the error when she subtracted 2x.
please help me asap :)!!
Answer:
EFG = 90 degrees
GDH = 45 degrees
FEG = 45 degrees
DHG = 90 degrees
Step-by-step explanation:
Jayden reads 10 pages of a book in 7 minutes. Based on this rate, what is the total number of minutes it will take Jayden to read 200 pages?
Answer:
140 minutes
Step-by-step explanation:
It is 200 pages total and he reads 10 every 7 minutes. So, you do 200/10 and you get 20. Then do 7 times 20 to get your answer.
A pancake recipe calls for 4 1/2 cups of whole wheat flour .If the chef wants to split the recipe into 3 equal batches , how much flour should be in each batch
Answer: [tex]1\dfrac12\text{ cups}[/tex]
Step-by-step explanation:
Given : Quantity of flour required for 1 recipe = [tex]4\dfrac12[/tex] cups
[tex]=\dfrac{4\times2+1}{2}[/tex] cups
[tex]=\dfrac92[/tex] cups
Now , if chef wants to split the recipe into 3 equal batches , then quantity of flour in each batch = [tex]\dfrac92\div 3[/tex] cups
[tex]=\dfrac92\times\dfrac13\\\\=\dfrac32\text{ cups} = 1\dfrac12\text{ cups}[/tex]
Hence, the quantity of flour in each batch = [tex]1\dfrac12\text{ cups}[/tex]