Mai solved the equation below incorrectly. Identify Mai's error and then solve the equation correctly.
X-9) = {(x + 18)
3x - 3= kx +9
1
4
X-3=9
1
41
-x = 12
X = 48
What was Mai's error?
Answers
Answer: Please see explanation column for answer.
x= -36
Step-by-step explanation:
Step 1
from the attachment, Mai's solving is given as
1/3 (1/2x- 9) = 1/2 (x+18)
1/6x-3= 1/2x+9
1/4x-3=9
1/4x=12
x=48
Mai's error started when he subtracted wrongly 1/2 x from 1/6x which gave him 1/4 x instead of - 1/3 x.
Solving correctly, we have that
1/3(1/2x-9) = 1/2(x+18)
1/6x -3= 1/2x+ 9
taking like terms to like terms
1/6x-1/2x= 9+3
(1-3)/6x= 12
-2/6x= 12
-1/3x= 12
multiplying both sides by -3
-1/3x X -3 = 12 X -3
x= -36
Related Questions
Calculate the value of (6.72 x 10^5) + (3.2 x 10^4)
Give your answer in standard form.
Answers
Answer:
7.04× 10^5
Step-by-step explanation:
6.72 x 10^5= 6.72 x 10^(4+1)= 6.72 x 10^1 ×10^4
= 67.2 x 10^4
(67.2 x 10^4)+ (3.2 x 10^4)
(67.2+3.2) × 10^4 = 70.4 × 10^4
7.04× 10^5
Answer:
7.04× 10^5 Step-by-step explanation:
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Answers
Answer:
So the perimeter of the larger rectangle = 160
Step-by-step explanation:
We are given the scale factor of the two rectangles. We are given the perimeter of the smaller rectangle = 120.
Since the two rectangles are scaled, this means they have a common ratio. In other words:
[tex] \frac{perimeter \: of \: larger \: rectangle}{perimeter \: of \: smaller \: rectangle} = \frac{4}{3} [/tex]
As given in the question.
Now we know the smaller rectangle has a perimeter of 120.
Let's take the perimeter of the larger rectangles as x.
[tex] \frac{x}{120} = \frac{4}{3} \\ \\ multiplying \: both \: sides \: by \: 120 \\ x = \frac{4}{3} (120) \\ x = 160[/tex]
So the perimeter of the larger rectangle = 160
what is 3 divided by c
Answers
Answer:
1.00069229 × 10-8 s / m
Step-by-step explanation:
Answer:
3/c
Step-by-step explanation:
Rewrite the division as a fraction.
~Hoped this helped~
what is the gradient between (0,3) and (1,8).
Answers
Step-by-step explanation:
Given
(x1 , y1) = ( 0 , 3)
(x2 , y2) = ( 1 , 8)
Now
Gradient =
[tex] \frac{y2 - y1}{x2 - x1} [/tex]
[tex] = \frac{8 - 3}{1 - 0} \\ = \frac{5}{1} \\ = 5[/tex]
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The variable in the term 7m⁴ is raised to the power of
Answers
Answer:
Raised to the power of 4
Step-by-step explanation:
Hooppee heelps
Evaluate:
5x2 – 2 (y + 1) + 9 when x = 2 and y = 1.
Answers
Answer:
25
Step-by-step explanation:
[tex]5x^{2} - 2 ( y + 1)+9 = 5*2^{2} - 2(1 + 1) + 9 = 5 *4 - 4 +9 = 20 - 4 + 9 = 20 + 5 =25[/tex]
5x^2-2(y+1)+9
5(2)^2-2(1+1)+9
5(4)-2(2)+9
20-4+9
16+9
25
How many photos in the shape of a parallelogram will it take to cover the bulletin board if each photo has a base of 6 inches and a height of 4 inches?
Answers
Answer:36
Step-by-step explanation:
I took the assignment
Answer:
It is 36
Step-by-step explanation:
I too has did assignemnt
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Answers
Answer:
W=144
Step-by-step explanation:
36=w/4
36 times 4=w/4 times 4
144=W
Answer:
144
Step-by-step explanation:
144/4=36 36x4=144
9x+6-4x-2x+1-15 simplify plz
Answers
Answer:
3x-8
Step-by-step explanation:
Which of the following is the divisibility rule for 3? *
1 point
A. Adds up the digits. The sum must be even and divisible by 3.
B. The digits must add up to 9.
C. The last digit must be a 3.
D. Adds up the digit
Answers
Answer:
well, after you add the digits, the sum must be divisible by 3.
Step-by-step explanation:
Need help asap!
Find a) & b)
Answers
Answer:
- 25 and - 623
Step-by-step explanation:
Using the term to term rule with u₀ = - 3 , then
(a)
u₁ = u₀³ + 2 = (- 3)³ + 2 = - 27 + 2 = - 25
(b)
u₂ = u₁³ + 2 = (- 25)³ + 2 = - 625 + 2 = - 623
guys bought 2/3 pound of turkey and 1/4 pound of ham.The tukey cost 9 dollars per pound, and the ham cost 7 dollars per pound.In all,how much did gus spend?
Answers
Answer:
$7.75 in total
Solve the system of equations by the substitution method.
X+ 10y = 17
2x+6y= 6
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution is (Simplify your answer. Type an ordered pair)
O B. There are infinitely many solutions.
O C. There is no solution.
Answers
Answer:
Step-by-step explanation:
-2x - 20y = -34
2x + 6y = 6
-14y = - 28
y = 2
x + 20 = 17
x = -3
(-3,2)
The answer is A
into the pair of a fraction as a pair of fractions with a common denominator
Answers
Answer:
3/10, 2/5
Step-by-step explanation:
A jar contains sugar. The jar and the sugar have a total weight of 850 g. Anna uses 2/3 of the sugar. The jar and the sugar now have a total weight of 530 g. Work out the weight of the jar.
Answers
Answer:
[tex]J = 370g[/tex]
Step-by-step explanation:
Given
Represent the weight of the Jar with J and the sugar with S
Initially, we have:
[tex]J + S = 850g[/tex]
After 2/3 of sugar is removed we have:
[tex]J + S -\frac{2}{3}S= 530g[/tex]
Required
Determine the weight of the jar
[tex]J + S = 850g[/tex] --- (1)
[tex]J + S -\frac{2}{3}S= 530g[/tex] --- (2)
Simplify (2)
[tex]J + S -\frac{2S}{3}= 530g[/tex]
Take LCM
[tex]J + \frac{3S - 2S}{3}= 530g[/tex]
[tex]J + \frac{S}{3}= 530g[/tex]
Make S the subject in (1)
[tex]J + S = 850g[/tex]
[tex]S = 850g - J[/tex]
Substitute 850g - J for S in [tex]J + \frac{S}{3}= 530g[/tex]
[tex]J + \frac{850g - J}{3}= 530g[/tex]
Multiply through by 3
[tex]3 * J + 3*\frac{850g - J}{3}= 530g * 3[/tex]
[tex]3J + 850g - J= 1590g[/tex]
Collect Like Terms
[tex]3J - J= 1590g-850g[/tex]
[tex]2J= 740g[/tex]
Make J the subject
[tex]J = \frac{1}{2} * 740g[/tex]
[tex]J = 370g[/tex]
The jar weighs 370g
Answer:
370
Step-by-step explanation:
Andy’s dog weighs 27 pounds, which is 3/4 the weight of Seher’s dog. How many pounds does Seher’s dog weigh?
Answers
Answer:
20.25 lbs
Step-by-step explanation:
Multiply 27 by 3/4 or .75 to equal 20.25.
Answer:
36 pounds.
Step-by-step explanation:
Suppose Seher's dog weigh x pounds, here is an equation:
27=[tex]\frac{3}{4}[/tex]x
multiply 4 on both sides and dividing 3 on both sides, we get:
36=x
we flip this around:
x=36
So, Seher's dog weighs 36 pounds.
(Hope you like my answer and explanation)
Of the numbers 5, 6, or 7, which is a solution of the inequality y + 4 < 10?
Answers
[tex] \begin{cases}5 \in y \\ 6 \in y \\ 7 \in y \end{cases}[/tex]
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Therefore, the value of y is lesser than 6. That meane it can't be y = 6 or greater. Hence, 5 is the solution to the Inequality.
Answery = 5 is the solution to the Inequality.
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Equation:
Answer:
Answers
Answer:
one regular ticket costs $30
Step-by-step explanation:
The total number of people = 4
Without the $20 coupon, the total cost would have been =100+20 = $120
Assume the price of one regular ticket is x;
4x = 120
Divide both sides by 4 to solve for x
x = 120/4
x = 30
Therefore, one regular ticket costs $30
Answer:
$30
Step-by-step explanation:
Since you pay 100 after discount, you add the 20 dollar discount to the 100 ($120)
Then since there are 4 of you in total, (you+ 3 friends), you divide by 4.
And Voila, your answer is $30 per person.
Hope this helps :)
. Predict how many tiles Figure 100 will
have? The rule is y=6x+5
Answers
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Answers
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Step-by-step explanation:
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Answers
i am pretty sure the answer is:
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–9.2(4 – (2))
–9.2(2)
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-36.8 + 9.2x
x
Answers
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Answer:
b b
Step-by-step explanation:
The equation is shown. What FACTOR is missing from the equation?
30 + 12 = _(5 + 2)
8
2
4
6
Answers
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c) passing through the points (4, -5) and (-2, 9).
Answers
Answer:
Step-by-step explanation:
you can use slope intercept form y=mx+b
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Answers
Answer:
look for coordinates of their intersection
Step-by-step explanation:
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Which model shows ^3√64 = 4 ?
Answers
Answer:
if we carefully observe, left-bottom model contains 4 units on each side of the cube.
Therefore, we conclude that left-bottom model represents the [tex]\sqrt[3]{64}=4[/tex].
The correct model is attached below.
Step-by-step explanation:
Given the expression
[tex]\sqrt[3]{64}=4[/tex]
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64 = 4³
Thus, the cube will have 4 units on each side.
Now, if we carefully observe, left-bottom model contains 4 units on each side of the cube.
Therefore, we conclude that left-bottom model represents the [tex]\sqrt[3]{64}=4[/tex].
The correct model is attached below.
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Answers
Answer:
1/3
Step-by-step explanation:
Which value is an input of the function?
-14
-2
0
4
Answers
Answer:
the answer is 4
Step-by-step explanation:
Help will give brainliest !!
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Answer:
II, III and IV.
You can construct similar figure for I.
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Answer:
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Step-by-step explanation:
