Answers
Answer:
Here is how to solve these!
if u want me to solve them too, tell me in the comments.
Step-by-step explanation:
So, u start off by putting in ur mind that u want to solve for x (or the variable) and u start working on that by that following:
-Step one: Isolate the variable, u should remove anything that is at the same side of the equal sign along with the variable to the other side, you do that by flipping the operation in front of it (flip + to -, flip x to /, and vice versa too) for example, you have 3x=6, u isolate x by dividing 3 by both sides, removing it from the side of x and taking it to the other side.
-Step two: After moving the numbers to the other side, make the operation u should be doing, example is now that u have x= 6/3 u won’t leave it standing there, so u solve, and the answer would be 2
-Step three: Piece everything together, now that u have a side with only one number and a side with only a variable, you know what x really is, which is x=2 and this is how u find x
-Additional step: if ur teacher told u to check if ur answer is correct, u check by substituting the variable (x) with the answer u got (2) and solve the equation u had in the first place normally, if the two sides are equal, ur answer was correct, if they are not, u have to solve it again with more focus
ur welcome :)
brainliest please?
Related Questions
There are a total of 66 students in the
fourth grade at North Elementary
school. Class A has five more
students than Class B. Class C has 2
less students than Class B. How
many students are in class A?
Answers
Answer:
A = 26
Step-by-step explanation:
sum of students = classA + classB + classC
let's say classA = A, classB = B, and classC = C
A + B + C = 66
class A has five more students than class B, so A = 5 more than B so A = 5+B
class C has 2 less students than class B, so C = 2 less than class B = B -2, so C = B-2
A + B + C = 66
A = 5+B
C = B-2
substitute 5+B for A and B-2 for C in the first equation to limit this to one variable (B)
(5+B) + B + (B-2) = 66
3B + 3 = 66
subtract 3 from both sides to isolate the variable and its coefficient
3B = 63
divide both sides by 3 to solve for B
B = 21
A = 5 + B = 5 + 21 = 26
Mattress Length: 6.25 in Length: ft
Answers
Answer:
the length in ft would be 0.52 but im not entirely sure hope this helps!
Step-by-step explanation:
I need help please help out dudeeeeeeeeee
Answers
Answer: heyaa!!
Your Answer Is 6/25Step-by-step explanation:
Simplify the expression.
Hopefully this helps you <3
- Matthew :)
ecuación: (9²)³ porfavor díganme alguna respuesta la necesito para el lunas TwT
Answers
531,441
solution:
Multiply.
(9²)³
Multiply 9².
9 x 9
9² the 2 means multiply to itself.
so 9x9 is equal to (81)³
Now multiply it again
81 x 81 x 81
= 531,441
At a balloon festival, 268 people
showed up to watch the evening
lift-off on Friday night at 8:00p.m.
Saturday morning's lift-off brought in
328 people. Sunday morning's show
brought in twice as many people
as Friday night's lift-off. How many
people in all came to watch the balloon
festival?
Answers
How many possible outcomes if I choose an odd number between 0 and 10 and a letter of an alphabet?
Answers
Answer:
104, with the assumption that "an alphabet" is the English alphabet
Step-by-step explanation:
26*4
A bag of candy contains five red four blue six green and three yellow candies what is the probability of randomly selecting one candy that is blue or yellow
Answers
Answer:7/18
Step-by-step explanation:
P(R) =4/18
P(Y)= 3/18
BOTH = 4/18 + 3/+18
What is the height of a cone if the radius is 3 and the volume is 40π
Answers
Then the height of the cone is 11.537
Many large cities have considered or passed proposals that ban the use of plastic grocery bags in stores. A concerned student would like to measure if residents of her hometown would consider a similar ban on plastic bags. Standing in a busy shopping area, the student approaches adults and asks, "Items made of plastics are a dangerous, growing source of pollution to our world’s oceans and threaten many animal species. Given this, would you support a ban on plastic shopping bags in our city stores?” How might the results of this survey be biased in estimating the proportion of all town residents who would support a ban on plastic bags?
The student may overestimate support for a plastic bag ban because only adults in the shopping area were chosen to participate.
The student may overestimate support for a plastic bag ban because the wording of the question may influence adults to support a ban.
The student may underestimate support for a plastic bag ban because the wording of the question may influence adults to not support a ban.
The student may underestimate support for a plastic bag ban because some adults may not want to answer questions about the environment.
Answers
Answer: The student may overestimate support for a plastic bag ban because the wording of the question may influence adults to support a ban.
Step-by-step explanation:
A number c minus 12 is greater than 4.
Answers
Answer:
C is equal to any number that is greater than 16.
Step-by-step explanation:
1. c - 12 > 4
2. c > 16
does anyone know how to do bearings
answer as many as you like
Answers
Please help work this equation
Step-by-step explanation is needed.
100 points
5 stars ⭐️ ⭐️⭐️⭐️⭐️
And a thanks
Answers
Hi!
Given these two equations:
[tex]x = y + 8[/tex]
[tex]x + 4 = 2(y + 4)[/tex]
We want to solve using the substitution method. Knowing that x is equal to y + 8, we can simply plug in 'y + 8' in for x in the second equation, like so:
[tex](y+8)+4=2(y+4)[/tex]
Combine like terms on both sides:
[tex]y+12=2y+8[/tex]
Subtract y from both sides:
[tex]12=y+8[/tex]
Subtract 8 from both sides:
[tex]y=4[/tex]
Now, we can simply plug the y value in to the first equation, and solve for x:
[tex]x=4+8[/tex]
Simplify:
[tex]x=12[/tex]
Therefore, x is equal to 12 and y is equal to 4.Learn more about the substitution (and also elimination!) method here:
https://brainly.com/question/14619835
Find the surface area of the cylinder. Use 3.14 for pi. a hay bale with a diameter of 30 inches and a height of 72 inches
about [ ] in.²
Answers
Answer:
8199.56 inches²
Step-by-step explanation:
A=2πd
2h+2π(d
2)2=2·π·30
2·72+2·π·(30
2)2≈8199.55683in
Paloma is visiting a new city on vacation. she plans to rent a segway to tour the downtown area. the rental service charges $25 for the first half hour and $5.25 for each half hour after that. how much will it cost for paloma to use the segway for 8 hours?
a.$103.75
b.$40.75
c.$84.00
d.$72.25
Answers
What is the surface area of the rectangular prism?
a. 144 m 2
b. 288 m 2
c. 128 m 2
d. 256 m 2
Answers
A = 2 * l * w + 2 * l * h + 2 * w * h
Answer: B. 288m 2
Step-by-step explanation:
A = 2 (wl+hl+hw)
2 · (4 · 16 + 4 · 16 +4 · 4) = 288m 2
I really need help pleaseeee
Answers
which expression is equivalent to (9^6)^2
Answers
Answer:
9 ^ 12
Step-by-step explanation:
Use the power rule - (x^a)^b = x^ab
---- > 9 ^ 12
The answer would be:
282429536481
Simplify and she the steps how to solve this
(5t^2 + 4) - (6t^2 - 7t + 1)
Answers
Answer:
11t² + 7t + 3
Step-by-step explanation:
⇒ (5t² + 4) - (6t² - 7t + 1)
⇒ 5t² + 4 - 6t² + 7t - 1
⇒ 11t² + 7t + 3
Answer: [tex]-t^2 + 7t + 3\\\\[/tex]
Work Shown:
[tex](5t^2 + 4) - (6t^2 - 7t + 1)\\\\5t^2 + 4 - 6t^2 + 7t - 1\\\\(5t^2 - 6t^2) + 7t + (4-1)\\\\-t^2 + 7t + 3\\\\[/tex]
WILL GIVE BRAINLIEST
How would the median change if the number 71 replaced one of the 67's in the set?
71, 67, 67, 17, 69, 84, 21, 87
Question 5 options:
decrease
increase
no change
Answers
Answer:
increase
Step-by-step explanation:
Given data is: 71, 67, 67, 17, 69, 84, 21, 87Arranging in ascending order we find: 17, 21, 67, 67, 69, 71, 84, 87 Here N = 8 (Even number)N/2 = 4 and N/2 + 1 = 54th term = 67, 5th term = 69-> median = Sum of 4th and 5th term/2 = (67 + 69)/2 = 132/2 = 66Now, when one of the 67 is replaced by 71, the new data set in ascending order will be: 17, 21, 67, 69, 71, 71, 84, 87Here, 4th term = 69, 5th term = 71New median = (69 + 71)/2 = 140/2 = 70-> new median > initial medianCONCLUSION: Median will increase if the number 71 replaced one of the 67's in the set.
PLEASE HELP ASAP!!!!!
Answers
Answer:
15/40 or simplified 3/8
Step-by-step explanation:
A rectangular image of length 5 cm and width 7 cm is magnified in a studio. On magnification, 1 cm of the image represents 15cm. Find the perimeter of the rectangle in the magnified image.
Answers:
360 cm
180 cm
440 cm
84 cm
Answers
Answer:
238 cm
Step-by-step explanation:
so we have a scale factor of 17: 1
originally we had the dimensions: 3cm by 4m
now we have 3*17 by 4*17 = 51 cm by 68 cm
Perimeter = 2*51 + 2*68 = 238 cm
Answer:
360 cm
Step-by-step explanation:
The height of the magnified image is the product of the height of the original image and the scale factor.
h=15(7) cm.
Simplify.
h=105 cm.
The width of the magnified image is the product of the width of the original image and the scale factor.
w=15(5) cm.
Simplify.
w=75 cm.
So, the perimeter is
P=2(75)+2(105) cm.
Simplify.
P=360 cm.
Therefore, the perimeter of the painting is 360 cm.
9) How much ice cream can the sugar cone hold if
you only fill the inside? Round your answer to the
nearest cubic millimeter.
60 mm
136 mm
140 mm
Answers
Answer:
13188mm^2
Step-by-step explanation:
D=60mm
H=136mm
L=140mm
then v=1/3xd^2x h= 1/3x3.14x60^2x136
SA=tc pl/2
=3.14x60x140= 13188mm^2
hope this helps!
A chemist is mixing a 50% salt solution with an 18% salt solution to make 40 L of a new solution that will contain 30% salt. How much of each of the original solutions should the chemist use?
Answers
Answer:
See below
Step-by-step explanation:
Sum of ingredients = sum of final solution
.50 x where x = 50 percent amount then 40 - x = 18% amount
.50 x + .18(40 - x) = .30 ( 40 )
.50 x + 7.2 - .18x = 12
.32x = 4.8
x = 15 L of 50% 25 liters of 18%
How many boxes are needed for a total of 3,745 napkins if one box can hold 75 napkins?
Answers
Answer:
50
Step-by-step explanation:
3745 divided by 75 = 49.93
Round to 50
Hope this helped :)
A rectangle prism with a length of 12.5 cm and a width of 7.5 cm has a
volume of 937.50 cm?. What is the height of the rectangular prism?
Answers
Answer:
Height = 10 cm
Step-by-step explanation:
To find the height of the rectangular prism, we need to use the volume equation of rectangular prisms:
V = l * w * h
l = length
w = width
h = height
We know the length (12.5 cm), width (7.5 cm), and the volume (937.50 [tex]cm^{3}[/tex]).
Plug all these into the equation and solve for the height:
937.50 = (12.5)(7.5)h
937.50 = 93.75h Multiply 12.5 by 7.5
10 = h Divide 937.50 by 93.75 to get h.
Therefore, the height of the rectangular prism is 10 cm.
Let's check our answer by plugging all values into the volume equation:
937.50 = (12.5)(7.5)(10)
937.50 = 93.75 (10)
937.50 = 937.50 Both values are equal so 10 is correct!
I hope this helps! Good luck!
Find the value of X that will make A||B. Show work please, I need to figure out how to solve it.
Answers
Answer:
x = 12
Step-by-step explanation:
In order for these lines to be parallel:
5x = 4x + 12
x = 12
Hope this helps
A cylinder has a base radius of 8 meters and a height of 19 meters. What is its volume in cubic meters, to the nearest tenths place?
Answers
Answer:
477.28cu m
Step-by-step explanation: R (8) x3.14 (pi) is 25.12, 25.12x19=477.28
Libby built a fence that was 56 \text { feet}56 feet56, start text, space, f, e, e, t, end text long over 444 days. She built the same length of fence each day.
How many inches of fence did Libby build each day?
Answers
Answer:
168 inches
Step-by-step explanation:
To find the fence made each day by Libby, we will divide 56 by 4.
convert the length of fence into inches.
1 foot = 12 inches.
Write the equation in standard form using integers. y=3x + 4
Answers
Hope this helps
To write the equation in standard form
⇒ must know the standard form:
⇒ Ax + By = C
⇒ essentially move all the variables to one side and constant to
the other
Let's solve:
[tex]y = 3x + 4\\-3x+y=4[/tex]
Standard form: [tex]-3x+y=4[/tex]
Answer: [tex]-3x+y=4[/tex]
Hope that helps!
A. 225
B. 25
C. 150
D. 50
Answers
Step-by-step explanation:
V=1/3hπr².
(h=3cm, r=5²cm
V= 1/3 x 3 x π x 5²
V= 25π
