What is the justification for step 2 in the solution process?
12 - X= 7x+32
Step 1: -X= 7x + 20
Step 2: -8x= 20
O A. the multiplication property of equality
O B. the addition property of equality
O C. the division property of equality
OD. the subtraction property of equality
Answers
Answer:
c- Division property of equality
Step-by-step explanation:
You would subtract 7x from the other side
Then divide by 8 to get x by itself.
Related Questions
Which number line represents all of the values of x for the equation x? = 647
-032-16
7
32
-10
-32-
32
12-16
32
40
-4032-N-16
-
16
3240
Answers
Answer:
the 2nd answer.
Step-by-step explanation:
8*8 = 64.
-8 * -8 = 64
Jackson was selling cups of lemonade. On Saturday, he sold a total of 14 cups. On Sunday he sold cups at a steady rate of 3 cups per hour. Set up and solve an equation to find how many hours, h, it took Jackson to sell 47 cups (including those from Saturday).
Answers
Answer:
(47-14) h ÷ 3 =11
Step-by-step explanation:
47-14=33
33 divided by 3 is 11
Jackson takes 11 hours to sell 47 cups.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
Let's say the number of hours that Jackson sold his cups on Sunday.
Now,
Saturday cups + Sunday cups = Total cups.
14 + 3x = 47
3x = 33
x = 11
Hence "Jackson takes 11 hours to sell 47 cups".
For more about the equation,
https://brainly.com/question/10413253
#SPJ2
What is the value of the expression? 2/3+1/6
Answers
then you can add 4/6 + 1/6 to get 5/6
True or False? (-x)^6 = -x^5 Explain your
answer (use either words or an example).
Answers
Answer:
False
Step-by-step explanation:
[tex](-x)^{6}[/tex] = [tex]x^{6}[/tex]
- [tex]x^{5}[/tex] = - [tex]x^{5}[/tex]
Thus
[tex](-x)^{6}[/tex] ≠ - [tex]x^{5}[/tex]
y+8=-1 show your work.
Answers
Answer:
3
Step-by-step explanation:
y=11-8
=3
Answer:
3
Step-by-step explanation:
y+8=11
y=11-8
y=3
therefore the ans is 3
find the value of x and y respectively A. 20, 120 B. 40, 120 C. 30, 140 D. 30,160
Answers
Answer:
Option A:
x=20 and y=120
Answer:
A. 20, 120
Step-by-step explanation:
[tex](4x - 20) \degree = 3x \degree..(vertical \: \angle 's) \\ 4x - 20 = 3x \\ 4x - 3x = 20 \\ \huge \orange { \boxed{x = 20}} \\ \\ 3x \degree + y \degree = 180\degree .. (straight \: line\:\angle 's) \\ 3 \times 20 \degree +y \degree = 180 \degree \\ 60 \degree + y \degree = 180 \degree \\y \degree = 180 \degree - 60 \degree \\y \degree = 120 \degree \\ \huge \red { \boxed{y = 120}}[/tex]
Given: h(x)=-4x and g(x) = 3x +1
Find:
(nog)
Answers
Answer:
Step-by-step explanation:
h(g(x))
g(x)= 3x + 1
h(3x + 1) = 4(3x + 1) = 12x + 4
The square root of 130
falls between _____
and _____
but it's closest to _____
Answers
Answer:
11 and 12, closest to 11
Step-by-step explanation:
The square root of 130 falls between 11 and 12
Since 11 squared is 121 and 12 squared is 144.
130 is closer to 121, making it closer to 11 than to 12.
Hope this helps :)
Round the decimal to the nearest whole number 5.8??
Answers
Answer:
6
Step-by-step explanation:
Because 5.8 is closer to 6 than it is to 5.
6
If you want to round to the nearest whole number, the answer would be 6. Remember, if the number right after the decimal is higher than 5, you want to round up, if the number is lower that 5, you will want to round down. I hope this helped!! :)
You had $21 to spend on two notebooks. After buying them you had $17. How much did each notebook cost?
Answers
2$ each notebook
First you find how much you spent. You spent 4$ then divide it in half. That is how you get the answer.
Use long division to write the fraction -6/8 as a decimal.
Answers
[tex] \frac{ - 6}{8} = - \frac{3}{4} = - 0.75[/tex]
2.3 to 1 significant figure
Answers
☽------------❀-------------☾
Hi there!
~
2.3 to 1 significant figure.
= 2
❀Hope this helped you!❀
☽------------❀-------------☾
Answer:
2
Step-by-step explanation:
Locate the ones place:
2.3
Check the next number:
2.3
Since the number is less than or equal to 4, we round down.
2.3 ≈ 2
Hope this helps.
What is the slope of a line perpendicular to the line whose equation is
6x – 15y = 270. Fully reduce your answer.
Answers
What is 47.2% as a fraction? (can someone show the work)
Answers
Answer: 59/125
Step-by-step explanation:
What is 47.2% as a fraction or mixed number in simplest form? 47.2% is 47.2/100 which is 472/1000 which is 59/125. 47.2% = 0.472 = 472/1000 = 59/125.
work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie store. how many movies must u rent to spend the same amount at each movie store" then there's 2 pics one says "all rentals $1.50, membership fee $15" other says "membership free, all rentals $2.25"
Answers
Answer:
20
Step-by-step explanation:
Your equation is correct. To solve it subtract 1.5r from both sides and divide by the resulting coefficient of r.
15 = 0.75r
15/0.75 = r = 20
You must rent 20 movies for the costs to be the same.
Which of the quadratic functions listed is written in standard form?
O A. Y= 2x² + 3x - 5
O B. Y-4 = - 3(x - 5)
OC. Y - 7 = -2(x + 3)?
O D. Y= (x+1)(x – 5)
Answers
Answer: A
Step-by-step explanation:
f(x)=ax²+bx+c is the standard form for quadratic functions. Looking at the answer choices, we can eliminate B, C, D. They are not the same as the given standard form. B and C are point-slope formulas, which are not standard form. D is in intercept form, therefore it is not standard form. This leaves us with A as the correct answer.
True or false? <4≈<5
Answers
Answer:
false FALSE FALSE FALSE
Evaluate for x=-7 and y=-3 11x - 4y
Answers
Answer:
Is -65
Step-by-step explanation:
Used a calculator
Step-by-step explanation:
x=-7 so 11x becomes 11 x-7
11 x -7=-77
y=-3 so -4y becomes -4 x -3
-4 x -3=-12
-77-12=-89
I hope it helps!
NEED HELP ASAP NO ROCKY !!!!!
Write the coordinates of the vertices after a translation 4 units left and 7 units down.
10+
1
А
B
Searts
-10
10
С
10
-10
A(-6,0) - AOC
BCO,O) - BO
C(-5, -1) - CC
Practice with our 100
Answers
Step-by-step explanation:
scan it u could have the answer in a flash
A recipe for orange water says, “Mix 3 teaspoons yellow water with 1 teaspoon red water.” For this recipe, we might say: “The ratio of teaspoons of yellow water to teaspoons of red water is 3:1.”
Answers
Answer:6:2
Step-by-step explanation:
Answer:
how many batches you need to know? If 2 batches the answer is 6:2 and if 4 batches it is 12:4
what is an expression is equivalent to 16.8 - 18.6
Answers
Answer:
- 1.8
Step-by-step explanation:
Step 1:
16.8 - 18.6
Answer:
- 1.8
Hope This Helps :)
Answer:
so is it negitive
Step-by-step explanation:
which represents the slope of a line that is parallel to a line with a slope of -2
Answers
Answer:
One with a slope of -2 and different y-intercept
e.g. y = -2x + 3
Andrew is taking a multiple choice test with a total of 80 points available. Each
question is worth exactly 2 points. What would be Andrew's test score (out of 80) if
he got 8 questions wrong? What would be his score if he got x questions wrong?
Answers
Answer:
Andrew's test score if he got 8 questions wrong = 64 points
Andrew's test score if he got x questions wrong = 80 - 2x
Step-by-step explanation:
Total points of the multiple choice test = 80
Each question = 2 points
Total questions = Total points of the multiple choice test / 2 points
= 80/2
= 40
Total questions = 40
A. What would be Andrew's test score (out of 80) if he got 8 questions wrong
If he got 8 questions wrong out of 40 questions
= Total question points - wrong question points
= 40*2 - 8*2
= 80 - 16
= 64 points
Andrew's test score if he got 8 questions wrong = 64 points
B. What would be his score if he got x questions wrong?
Test points if he got x questions wrong = Total question points - wrong question points
= (40 * 2) - (x * 2)
= 80 - 2x
Andrew's test score if he got x questions wrong = 80 - 2x
15 points and brainlist! Math
Answers
Answer:
distribute the 3
Step-by-step explanation:
follow pemdas ill put a brainpop link below
its the answer highlighted in yellow
Answer:
the 4th option is the right answer
subtract the constants
hope this helped you
please mark as the brainliest (ㆁωㆁ)
Julio is payed 1.2 times his normal hourly rate for each hour he works over 30 hours in a week. Last week he worked 40 hours and earned $495.60 enter and solve an equation to find julios hourly rate, r. Complete the explanation how you know that your answer is reasonable
Answers
Answer: $10.33
Step-by-step explanation:
Given: Julio is payed 1.2 times his normal hourly rate for each hour he works over 30 hours in a week.
Last week he worked 40 hours ( > 30 hours by 10 ) and earned $495.60.
Let r = Julio's hourly rate
if he worked over 30 hours in a week, then hourly rate = 1.2r
According to the question
[tex](1.2r)\times 40=495.60\\\\\Rightarrow\ r=\dfrac{495.60}{1.2\times 40}\\\\\Rightarrow\ r=10.325\approx10.33[/tex]
Hence, his hourly rate = $10.33
Please help and hurry please thank you!
Choose the equation that
represents this situation. Use c to represent the
variable.
Tori received a $50 gift card for her birthday. After buying some clothes, she
had $32 left on the card. How much did she spend on the clothes?
A.c=32+50
B.32c=50
C.32-c=50
D.50-c=32
Answers
Answer:
oh i have done these before but this one is a little confusing bc i got 2 answers B or C
w(x) = 2x + 5; Find w(x + 2)
Answers
Solution:
w(x) = 2(x + 2) + 5
w(x) = 2x + 4 + 5
w(x) = 2x + 9
Best of Luck!
Round 45.396 to the nearest tenth
Answers
Answer:
Step-by-step explanation:
45.396
tenth place is 3
on the right of 3 is 9. 9 is higher than 5. Therefore 3 becomes a 4.
the answer is 45.4
solve this below. 4(3y+7)=40
Answers
12y + 28 = 40
Subtract 28 on both sides:
12y = 12
y = 1
Hope this helped
Find the difference: 34x-4x+2y=?
Answers
Answer: The answer is 30x-2y
Step-by-step explanation: Subtract 4x from 34x to get 30x. Then the rest just falls down and you are left with 30x-2y. Also can you please give me a brainliest. I really need one.