HELLPPPPPPPP
1) What mistake did I make?
2) What suggestion would you give me to avoid making that same mistake in the future?
Answers
Answer:
1) The mistake u made is in the work step 2 when u transposed 4 to the side of 12 you should have changed the sign. It should have been multiplication.
2) Just recheck it once.
So, x was 48
Step-by-step explanation:
Equation:
x/4 - 5 = 7
Transpose 5 first.
So,
x/4 = 7 + 5
(Remember to change the sign when u transpose 5 to the RHS)
So,
x/4 = 12
Transpose 4.
So,
x = 12 × 4
x = 48
Recheck,
Substitute x with 48
48/4 - 5 = 7
Let's check:
48/4 = 12
Now 12 - 5 = 7
So, 7 = 7
Hope it helps
Answer:
Look at the pictures. Hope I helped.
Step-by-step explanation:
Related Questions
Use the image from problem 11 to answer this problem.
If angle 1 measures 146°, what is the sum of angles 2 and 4?
Answers
Answer:
34.
Step-by-step explanation:
All angles of a triangle combined equal 180, so if 1 angle measures 146, subtract 146 from 180. 180-146=34
If a tornado travels 100 miles in 2 hours and 30 minutes how many miles per hour did it travel?
Answers
Answer:
40 mi/h
Step-by-step explanation:
I hope this helps a lot
Which statement is true about the equation (x – 4)(x + 2) = 16?
The equation x – 4 = 16 can be used to solve for a solution of the given equation.
The standard form of the equation is x2 – 2x – 8 = 0.
The factored form of the equation is (x + 4)(x – 6) = 0.
One solution of the equation is x = –6.
Answers
Answer:
The Answer is C
Step-by-step explanation:
Is the first step in solving different from the first step of solving ? Explain Yes, in the first equation, start by subtracting 8 from both sides to set the equation equal to zero, but in the second equation, start by adding 1 to both sides to isolate the radical. Yes, in the first equation, start by squaring both sides to eliminate the radical, but in the second equation, start by adding 1 to both sides to isolate the radical. No, to solve either equation, square both sides to eliminate all radicals. No, to solve either equation, isolate the radical by adding 1 to both sides.
Answers
The first step in solving the first equation is different from the first step of solving the second equation because,
In the first equation, start by squaring both sides to eliminate the radical, but in the second equation, start by adding 1 to both sides to isolate the radical.
Thus the option B is the correct option.
What is algebraic expression?
Algebraic expression are the expression which consist the variables, coefficients of variables and constants.
The algebraic expression are used represent the general problem in the mathematical way to solve them.
Given information-
The first equation given in the problem is,
[tex](x-1)^2=8[/tex]
The above equation can be solve using the algebraic formula of whole square of two number as,
[tex](x-1)^2=8\\x^2+1^2-2x=8\\x^2-2x-8+1=0\\x^2-2x-7=0[/tex]
The first equation can be solved by putting square root both side as,
[tex]\sqrt{(x-1)^2}=\sqrt{8}\\(x-1)=\sqrt{8}\\x=2\sqrt{3}+1[/tex]
The second equation given in the problem is,
[tex]x^2-1^2=8[/tex]
The above equation can be solve using the algebraic formula of difference of the square of two number as,
[tex]x^2-1=8\\x^2=8+1\\x^2=9\\x=\pm3[/tex]
Hence, The first step in solving the first equation is different from the first step of solving the second equation because,
In the first equation, start by squaring both sides to eliminate the radical, but in the second equation, start by adding 1 to both sides to isolate the radical.
Thus the option B is the correct option.
Learn more about the algebraic expression here;
https://brainly.com/question/2164351
Answer:
B.
Step-by-step explanation:
Correct on Edgen. (2022)
An angle measures 18.6° less than the measure of its complementary angle. What is the measure of each angle?
Answers
Answer:
X = 35.7 Y=54.3
Step-by-step explanation:
Let the 2 angles be called X and Y were X is the smaller angle
we know that both angles are complementary therefore
X+Y=90
X = Y - 18.6 ( Given )
Y - 18.6 + Y = 90 ( substitution)
2Y = 90 + 18.6
Y = 108.6/2
Y=54.3
X= Y-18.6= 54.3-18.6 = 35.7
Check : X + Y = 35.7+54.3=90
plz plz plz help me no links but PLZ ANYTHING
Answers
Answer:
Yesterday a lady on the subway asked me what my favorite subject was. I said math and she looked at me weird.So I was trying to think of a way to properly explain it to her. I wanted to provide her with so many details. So since I work at a company of calculaters I used how the manager makes them as an example. She was surprised with all the details I game her and told me that my manager needs to give me a promotion...I agree with her.
Kyle said that it is not possible to draw a trapezoid that is a rectangle. Trisha said it is possible. Who is correct?
Answers
Since two sides of it are parallel to each other
Question 1 of 5
Which implicit detail is best supported by this passage?
The storm clouds grew, and the sky darkened. As the rain started to
fall, we dashed into the house like we were running from a predator.
wê huddled in the corner, peering out the window every few moments
to see if the storm had passed. Each time the thunder rumbled, we
shuddered.
O A. The rain had started to fall.
Ο Ο
B. The characters peered out the window.
O C. Something was chasing the characters.
O
D. The characters were scared of the storm.
Answers
Answer:yea
Step-by-step explanation:123
Find the value of x pls
Answers
Step-by-step explanation:
As we can see it a right angled triangle
so <y =90°
Now
3x + 11° + 25° + 90° = 180°{being sum of angles of triangle}
3x + 126° = 180°
3x = 54°
X = 18°
The Khan family ate at Sunbird Seafood last Friday and their bill was $70. They left the server a 15% tip. The tax rate was 5%. How much money was for the tip only?
Answers
Find AC. Round to the nearest tenth.
Answers
Sorry if the image looks bad I had to smoosh it so it would fit
how do you do this then? (higher tier maths GCSE)
Answers
Answer:
answer below
Step-by-step explanation:
when f(x+7)
moves the vertex to the LEFT not right
so the vertext would be (-5,-7)
when f(-x)
the graph is a reflection in y axis
so the vertex would be (-2,-3)
hope this helps!
You want to buy a computer. The computer costs $1,200. How much
would you have to save every month for 6 months to be able to buy the computer? For 8 months?
Answers
Answer:
6 months: 7200
8 months: 9600
Step-by-step explanation:
Given equations:
1200 * 6
1200 * 8
Solve 6 months:
1200 * 6
= 7200
Solve 8 months:
1200 * 8
= 9600.
10
This recipe makes a cake big enough to serve 12 people.
Gareth has 22 eggs and plenty of the other ingredients.
He makes the largest cake he can following this recipe.
How many people does his cake serve?
Recipe: Serves 12
140 g butter
240 g sugar
4 eggs
280 g flour
60 ml milk
Answers
Answer:
66
Step-by-step explanation:
The recipe states that a 4 egg cake mixture will serve 12 people.
To find the number of people a 1 egg cake mixture will serve: 12 ÷ 4 = 3 ⇒ 1 egg will make a cake big enough to serve 3 people.
If Gareth has 22 eggs, then 22 x 3 = 66
So a 22 egg mixture will be able to serve 66 people.
Answer:
About 60 people
Step-by-step explanation:
1.) Garret has 22 eggs and the recipe calls for four eggs to serve 12.
2.) Garret Can make this cake 5 times with 22 eggs (4 x 5=20)
3. Thus his cake can serve about 60 people
12 (people fed per cake) x 5 (cakes he could make) = 60 people
Select the correct answer.
Which statement describes the end behavior of the function?
f(x)= x squared-4/x squared-9
ОА.
The function approaches O as x approaches - and co.
OB.The function approaches 4/5 as x approaches -- and co.
OC. The function approaches 2/3 as x approaches - and co.
OD. The function approaches 1 as x approaches -co and co.
Answers
Answer:
D. The function approaches 1 as x approaches [tex]-\infty[/tex] and [tex]\infty[/tex]
Step-by-step explanation:
When evaluating end behavior, take the limit as the function goes to negative and positive infinity.
When evaluating limits to infinity, terms less than the highest degree are irrelevant:
[tex]\displaystyle \lim_{x\rightarrow \infty}\frac{x^2-4}{x^2-9}=\frac{\infty^2}{\infty^2}=1\\\\\lim_{x\rightarrow -\infty}\frac{x^2-4}{x^2-9}=\frac{(-\infty)^2}{(-\infty)^2}=1[/tex]
Therefore, the function approaches 1 as x approaches [tex]-\infty[/tex] and [tex]\infty[/tex]
In calculating the monthly payment for a five-year loan, what value should be used for n, the number of periods over which the loan is repaid, as it appears in the following formula? P = P V times StartFraction i over 1 minus (1 i) superscript negative n EndFraction a. 5 b. 12 c. 60 d. 120.
Answers
The value should be used for n, the number of periods over which the loan is repaid in 60 periods.
We have to determine
In calculating the monthly payment for a five-year loan, what value should be used for n, the number of periods over which the loan is repaid, as it appears in the following formula?
What formula is used to calculate the monthly payment?The value of the monthly payment is given by;
[tex]\rm P=PV\times \dfrac{i}{1-(1+i)^{-n}}[/tex]
Where,
PV is the present value or the amount of the loan.i is the interest rate per period and is calculated by dividing the yearly percent rate by 100 and by the number of periods in a year.n is the total number of periods and is calculated as the product of the number of periods in a year times the number of years.Therefore,
The value should be used for n, the number of periods over which the loan is repaid;
n = 6 years × 12 months/year = 60 months = 60 periods.
Hence, The value should be used for n, the number of periods over which the loan is repaid in 60 periods.
To know more about Monthly payment click the link given below.
https://brainly.com/question/26351994
Answer:
C:60
Step-by-step explanation:
edge 2022
Alicia went to the local farmers market to buy some fresh produce she bought carrots for 35% of the original price of 7.14 how much did Alicia pay for the carrots
Answers
Answer:
$2.499
Step-by-step explanation:
7.14 × .35 = 2.499
Problem 1
Bryce bought 32 stools that required assembly from Need-A-Seat. Some stools have three legs,
and the other stools have four legs. The box arrived with 108 stool legs. If the four-legged stools
cost $20 and the three-legged stools cost $15, how much did all of Bryce's stools cost? SOLVE
ALGEBRAICALLY.
2
Answers
The total cost of the stools is $540.
The system of equations that can be used to represent the question
a + b = 32 equation 1
3a + 4a = 108 equation 2
Where:
a = three legged stools
b = four legged stools
What is the number of three legged stools bought?In order to determine the required value, take the following steps:
Multiply equation 1 by 3
3a + 3b = 96 equation 3
Subtract equation 3 from equation 2
b = 12
What is the number of three legged stools bought?Substitute for b in equation 1
a + 12 = 32
a = 32 - 12
a = 20
What is the total cost of the stools?20(15) + 20(12) =
240 + 300 = $540
To learn more about simultaneous equations, please check: https://brainly.com/question/25875552
100 POINT QUESTION PLEADSE HELP
The following are the ages (years) of 5 people in a room: 20 , 21 , 20 , 21 , 21 A person enters the room. The mean age of the 6 people is now 20. What is the age of the person who entered the room?
Answers
Answer:
The person is 14 years old
Step-by-step explanation:
1. Multiply 6 times 18 which is 108
2. Add all numbers together in list which is 94
3. Subtract 94 from 108 which is 14
4. To check answer add 94 plus 14 and divide by 6 and you will get the median which is 18, now you know this answer is correct.
Thanks for any help. i’ll give 5 stars and thanks.
Answers
Answer:
140
Step-by-step explanation:
cus i said so
The cube of volume is 27000 cm cube.Then find its edge.
Answers
Answer:
30 cm
Step-by-step explanation:
the cubed root of 27000 is 30
check:
V = lwh
V = 30·30·30 = 27000
Simplify. 3 1/2+1/8 im not sure what this is
Answers
Answer:
125/8
is the final answer
Step-by-step explanation:
1.transform the expression
2.calculate
3.(final answer)
Answer:
I Believe the answer is either 3 5/8 or 29/8
Step-by-step explanation:
You have to find the most common denominator which for 1/2 and 1/8 is 8 and then you would do 1/2 1*3 and 2*4 to get 4/8 add them together for 5/8 then would would either add 24/8 to equal the 3 or you would leave the three by itself (depends on what your teacher says for simplification)
As for defining simplification it is solving the problem best you can with the information you are given.
Simplify by combining like terms: 6(n + 5) + 2(9n - 6)
[tex]10n + 42\\24n + 18\\24n - 1[/tex]
Answers
The product of the ages of three children is 1872. The age of the middle child is the average of the ages of the other two children. What is the sum of their ages
Answers
When the product of the ages of three children is 1872, the age of the middle child is the average of the ages of the other two children, then the sum of their ages is 57.
Let, the ages of the three children as A, B, and C.
Given that the product of their ages is 1872, we have:
A * B * C = 1872
Given that the age of the middle child is the average of the ages of the other two children, we can write:
B = (A + C) / 2
Now we have a system of two equations:
A * B * C = 1872
B = (A + C) / 2
We can substitute the value of B from the second equation into the first equation:
A * ((A + C) / 2) * C = 1872
Simplify the equation:
A * (A + C) * C = 3744
Now, we have a quadratic equation in terms of A and C.
[tex]A^2 * C + AC^2 = 3744\\AC(A + C) = 3744\\AC^2 + AC^2 = 3744\\2AC^2 = 3744\\AC^2 = 1872\\C^2 = 1872 / A[/tex]
Since the ages are positive integers, we need to find a pair of positive integers A and C such that [tex]A * C^2 = 1872[/tex].
Let's look for factors of 1872 that can work for [tex]C^2[/tex]:
[tex]1872 = 2^4 * 3^2 * 13[/tex]
The possible pairs of A and C are:
A = 1, C = 1872
A = 2, C = 936
A = 3, C = 416
A = 4, C = 234
A = 6, C = 104
A = 8, C = 58
A = 12, C = 26
Since A and C are ages, we'll choose A = 12 and C = 26.
Now we can find B using the equation B = (A + C) / 2:
B = (12 + 26) / 2 = 38 / 2 = 19
The sum of their ages is:
A + B + C = 12 + 19 + 26 = 57
Therefore, the sum of their ages is 57.
To learn more on equation click:
https://brainly.com/question/14468218
#SPJ12
plz anser i will giv brainliest
Answers
Please answer them. 25 points.
Answers
Step-by-step explanation:
Initial value is the y-intercept:
b = 1200Rate of change is the difference in the charge amount per year:
m = (1350 - 1200) / (8 - 5) = 150 / 3 = 50The equation would be:
y = 50x + 1200Initial value
b=1,200
Rate of change is the difference in the charge amount per year:
m = (1,350 - 1,200) / (8 - 5) = 150 / 3 = 50
The equation would be:
y = 50x + 1200
PLS HELPPP ASAP MATH
Answers
Answer:
B. 2x + 4y
Step-by-step explanation:
If x = 4, and y = 7, let's substitute these values for x and y in the equations!
For A, the equation is 2xy. Substitute the values and you have 2(4)(7) which equals 56. This expression is incorrect since the expression doesn't equal 36.
For B, the equation is 2x + 4y. Substitute and you get the equation
2(4) + 4(7) → 8 + 28 = 36.
36 is your desired value, and you get that with the expression 2x + 4y.
Answer:
A. 56
B. 36
C. 38
D. 34
Step-by-step explanation:
the answer is B
55 points for 1 right answer
Answers
2=r17
r=17/2
r=8.5
Answer:
the constant of proportionality is 8.5
Step-by-step explanation:
25.50-17.00=8.50
34.00-25.00=8.50
42.50-34.00=8.50
hope this helps
pls rate brainliest
All swimming equipment is on sale for 40% discount a snorkeling set regularly sells for $45 find the discount
Answers
Answer:
Step-by-step explanation:
Discount would be: 45 *40 / 100
=18
(D)$18 is the answer
What is the value of w in the equation 10(2) -4(-w)=36
Answers
Answer:
w = 4
Step-by-step explanation:
10(2)-4(-w)=36
20+4w=36
4w=36-20
4w=16
w=16/4
w=4
