please help. I really need it.
Look at this inequality: 12−4x ≤ 20
Which of these shows the solution to this inequality?
Question options:
Answer: The last line is the answer
12 - 4x < 20
20 - 12 = 8
-4x = 8
-4/4 = 8/-4
x = -2
New inequality: x > -2
Step-by-step explanation:
The correct option is d. The solution to the linear inequality 12 - 4x ≤ 20 is x ≥ -2 by solving the inequality.
To solve this inequality, to isolate the variable x.
Step 1
subtract 12 from both sides of the inequality:[tex]12 - 12 - 4x \leq 20 - 12,[/tex]
which simplifies to[tex]-4x \leq 8.[/tex]
Step 2 :
Divide both sides of the inequality by -4. However, when divide by a negative number, the direction of the inequality sign must be flipped. So x ≥ -2, indicating that x is greater than or equal to -2.Therefore, the solution to the inequality is x ≥ -2. The correct option is d.
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A sand wedge normally costs $65.00. It is on sale for 20% off the regular price. What is the discount of the sand wedge? A) $15.00 B)$16.25 C) $46.00 D) $52.00
Please..help
Answer:
D
Step-by-step explanation:
20% of 65 is 13
65-13=52
A bunch of bananas cost $4, a pineapple cost $2 more than a bunch of banana, and 4 apples cost one-half of a pineapple.
1. Write an equation that shows the cost of a pineapple in terms of bananas. Use this equation to find the cost of a pineapple.
2. Write an equation that shows the cost of 4 apples in terms of a pineapple. Use this equation to find the cost of 4 apples.
3. Write an equation that shows how much more a bunch of bananas cost compared to4 apples where x is the unknown value. Then, solve the equation.
What is the slope of this line?
−36
negative 3 sixths
−2
negative 2
−12
Answer:
its -2
Step-by-step explanation:
Answer:
-2Step-by-step explanation:
The rise is -6 and the run is 3.
[tex]\frac{rise}{run}= \frac{-6}{3}[/tex]
-6 divided by 3 is -2.
Hope this helps :)
Find the diameter of a circle with an area of 4π in 2
Please help!
Which statements are true of this relationship? Select two that apply.
Answer:
B And E
Step-by-step explanation:
yet snakkaksksksks
Answer:
b and e
Step-by-step explanation:
only ones that add up lol
Charlene has 2 flash drives of the same size that she uses to store pictures and videos. Each drive is holding the same number of GB of data, d. She wants to move everything to a memory card that can hold up to 8 GB
A) Charlene is going to delete 1 GB of data from each flash drive. How can the total amount of data left on the two flash drives be represented as an expression?
B) How can the expression you wrote be used to write an inequality that shows the maximum amount of data each flash drive can have on it in order to have all the data transfer to the 8 GB memory card?
867-5309
If you are a gunter dont respond to this
What is the mass of a triangle?
9/5 grams
7/5 grams
3 grams
11 grams
Pls help me! this is a long overdue assignment! (question is in the picture)
Answer:
three basic methods of graphing linear functions.
The first is by plotting points and then drawing a line through the points.
The second is by using the y-intercept and slope.
The third is applying transformations to the identity function f(x)=x.
At a school carnival, tickets can be purchased to participate in different activities. The table shows the total cost for different numbers of tickets.
What is the constant of proportionality that relates y , the total cost in dollars, to x , the number of tickets purchased?
PLZ I HAVE TO FINISH THIS TEST TODAYYY
Answer:
4 tickets for $1
Step-by-step explanation:
I just divided 8 with 2.00 and got 4.
The value of the constant of proportionality that relates y, the total cost in dollars, to x, the number of tickets purchased is 1/4.
What is a proportional relationship?It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.
It is given that:
At a school carnival, tickets can be purchased to participate in different activities.
The data are shown in the picture.
From the data:
y ∝ x
Removing the proportional sign:
y = kx
Plug x = 8
y = 2
2 = 8k
k = 1/4
Thus, the value of the constant of proportionality that relates y, the total cost in dollars, to x, the number of tickets purchased is 1/4.
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Which ordered pair is located on the x-axis?
(0, -5)
(0, -5)
(1, -5)
Answer:
-5,0
Step-by-step explanation:
I am only doing 15 points because I have asked questions and they just take advantage of the points and don't actually answer the question.
Mrs. Jones husband thought he could fix the clogged sink drain. In doing so he lost the drain snake down the pipe and had to call a plumber. Roto-Rooter charged a $50 home visit fee and an hourly rate of $35 an hour.
Write an equation in slope-intercept form to represent the total cost of the plumbers fees.
y represents the total cost and x represents the number of hours.
Write another equation where t represents the total cost and h represents the number of hours.
What does the y-intercept represent in this problem?
What does the slope represent in this problem?
The plumber was at Mrs. Jones house for 4 hours. What is the total cost for the plumbers visits?
Helllllllpppp meeeeee wiiiiitgghhh thhhiiiss
Answer:
4.) 12
5.)1.67
Step-by-step explanation:
9. Evaluate the ceiling function for the given value.
A. f(x) = ⌈x⌉; x = −7.4
B. g(x) = ceiling (x, 0.50);
x = 21.27
Given:
A. f(x) = ⌈x⌉; x = −7.4
B. g(x) = ceiling (x, 0.50); x = 21.27
To find:
The values of ceiling function for the given value.
Solution:
A.
We have,
f(x) = ⌈x⌉; x = −7.4
Here, f(x) is a ceiling function, so we need to find the nearest next integer value because if m < x ≤ n, then ⌈x⌉ = n, where m and n are integers.
Now,
f(-7.4) = ⌈-7.4⌉
f(-7.4) = -7
Therefore, the value of f(x) is -7 at x=-7.4.
B.
g(x) = ceiling (x, 0.50); x = 21.27
Here, g(x) is a ceiling function with 0.50, so we need to find the nearest next multiple of 0.50 because if m < x ≤ n, then ⌈x⌉ = n, where, m and n are multiples of 0.50.
Now,
g(21.27) = ceiling (21.27, 0.50)
g(21.27) = 21.50
Therefore, the value of g(x) is 21.50 at x=21.27.
Which graph represents the solution of the inequality 4−x≥10 ? K SO I KINDA DREW THE NUMBER LINE BUT WHERE YOU SEE THE 1ST ARROW FROM THE RIGHT,THAT'S WHERE IT STARTS! PLZ HELP ME ALSO ALL THE NUMBERS ARE NEGATIVE:)
--← ← ← ← ← ←------------------------------------------- A. starts at 6
10 9 8 7 6 5 4 3 2 1 0
-----------------→ →→→→→→→→→→→- B. starts at 6
10 9 8 7 6 5 4 3 2 1 -0
---←----←---←-------------------------- C. starts at 7
10 9 8 7 6 5 4 3 2 1 -0
--------------→ →→→→→→→→→→→→→-------------------------- C. starts at 7
10 9 8 7 6 5 4 3 2 1 -0
1. Find the value of each expression. Show your work.
(a) 1.2^2
(b) 2^3 + 17-3x4
(c) 9^2 divied by 3^3
Answer:
a) 1.44
b) 13
c) 3
Answer:
a) 1.44
b) 13
c) 3
Step-by-step explanation:
a) 1.2 • 1.2 = 1.44
b) (2 • 2 • 2) + 17 - (3 • 4)
(8) + 17 - 12
8 + 5 = 13
c) (9 • 9) ÷ (3 • 3 • 3)
81 ÷ 27 = 3
Hope this helps!
When 1480 is divided into 12 equal parts, the remainder is 4. What is a correct way to write the quotient?
123.4
1234 over 12
123 + 4
1234 over 1480
Answer:
123 + 4
Step-by-step explanation:
whenever there is a remainder you write something + the remainder
Lucita does the division problem 3.302 ÷ -1.27, and gets -0.026. She doesn't understand this result because she had estimated the answer to be -3. What was Lucita's mistake?
A: Lucita's estimate is too low.
B:The decimal point should be to the left of the 2.
C:The decimal point should be to the left of the 6.
D:Lucita's estimate is too high.
Thank you to those who end up helping, xx
Which vertex of the rectangle has the coordinates (-3,4) ASAP
Answer:
The answer is A.
Step-by-step explanation:
Have a good day/night :)
Answer:
A
Step-by-step explanation:
(-3,4) would be in A of the rectangle because -3 is x and that would be 3 spaces to the left from the (0,0) point and 4 is y and that is 4 spaces up from (0,0)
Each order of nachos costs $3.75 at the concession stand and each drink costs $2.25. Which statement is true if Sarah bought three orders of nachos?
A
The product of 3(–2.25) means Sarah has $6.75 less when she bought 3 orders of nachos.
B
The product of 3(2.25) means Sarah has $6.75 more when she bought 3 orders of nachos.
C
The product of 3(–3.75) means Sarah has $11.25 less when she bought 3 orders of nachos.
D
The product of 3(3.75) means Sarah has $11.25 more when she bought 3 orders of nachos.
Answer:
C i think not so sure bro gl tho
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
For lunch with her friend, Kristionna is purchasing several side items that cost a total of $18, plus 2 sandwiches. The total cost of the meal is $32 and is represented by the equation 2x + 18 = 32. How much does each sandwich cost?
A) $14
B) $22
C) $7
D) $28
Answer:
C
Step-by-step explanation:
thee equation they give us is 2x + 18 = 32. Our goal is to isolate x.
First, subtract 18 from both sides to eliminate it.
2x + 18 = 32 ---> 2x + 18 - 18 = 32 - 18 ----> 2x = 14
Next, separate the 2 from the x by dividing it from both sides:
2x = 14 ----> 2x/2 = 14/2 ----> x = 7
By solving this equation, we find that x, or one sandwich, costs $7.
I need help with my math problem..
Answer:
5 1/3
Step-by-step explanation:
i did 2/15 x 40 minutes
The solution to the following equation is x=0
6x+7= 1/2x+7
True
or
False
(The 1/2 is a fraction)
Answer:
True
Step-by-step explanation:
To see if that is the solution, lets solve the equation.
6x + 7 = 1/2x + 7
Subtract 1/2x from each side to bring it to the right
6x - 1/2x + 7 = 7
Subtract 7 from each side to bring it to the left
6x - 1/2x = 7 - 7
Simplify it
5.5x = 0
Divide 5.5 from each side to leave x alone.
x = 0
The answer is true. I hope this helps!
I need help with this question.
Pls help.
Answer: its model, graph, and scale
Step-by-step explanation:
Answer:
Metric units of measurement differ by powers of 10 - 10, 100, 1,000, and so on. Thus, converting from one metric unit to another is always accomplished by multiplying or dividing your initial measurement by the appropriate power of ten.
Step-by-step explanation:
Tonya works 60 hours in 3 weeks. Select ALL the true statements OR YOU WILL FAIL THE GRADE.
A. Tonya works 100 hours in 4 weeks.
B. Tonya works 140 hours in 7 weeks.
C. Tonya works 20 hours a week.
D. Tonya works 5 hours a day, 5 days a week.
E. At this rate, Tonya will work 240 hours in 16 weeks
Answer: b & c
Step-by-step explanation:
first i found how many hours tonya works in one week which was 20. i got that by dividing 60 by 3. then that set me up for finding the answer to the other problems as well. 60+20=80 so a wouldn’t have worked. 5x5 is 25 and she only worked 20 hours a week. and she would’ve worked 320 hours in 16 weeks, not 240. hope this helps!! :)
Answer:
B and C
Step-by-step explanation:
This problem is pretty simple if you know how to do some multiplication. First, we should figure out how many hours she works per week. You can figure this out by dividing 60 by 3. This gets us 20.
Now that we know how many hours she works each week, we can figure out the rest of the problems.
A is incorrect because 4 x 20 =80.
B is correct because 7 x 20 is 140.
C is correct because we did this problem earlier to solve the others.
D is in correct because 5 x 5 = 25, which does not equal 20.
E is incorrect because 16 x 20 = 320
Sorry if I'm not very good at this, as this is my first time solving someone's question.
Find the slope of the line that passes through (8, 4) and (5, 2).
(Type your answer in like this: 1/4, for example.)
Answer:
Slope (m)0.6667Slope-Intercept: y = mx + by = 0.6667x -1.33
Step-by-step explanation:
A fish tank contains 8 neon tetras and 12 guppies. What is the ratio of neon tetras to guppies?
A.1:5
B.2:3
C.3:2
D.2:5
I really need help with this. don't do this for the points, please.
Answer:
4 months
Step-by-step explanation:
I first did 45 minus 125 then divided it by 20 because that how much he pays each month. So the answer has to be 4 months.
Coal mines have shafts that can be as much as 7^3 feet deep. About how many feet deep into the Earth's crust are these shafts?
Answer:
343
Step-by-step explanation:
7 x 7 = 49
49 x 7 = 343
The coal mines is 343 feet deep into the Earth's crust are these shafts.
What is Unit of Measurement?A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
Given that Coal mines have shafts that can be as much as 7³ feet deep.
We need to find about how many feet deep into the Earth's crust are these shafts.
From the given it is 7³ feet deep.
So let us find the value of 7³
7×7×7
49×7
Forty nine times of seven
343
Three hundred and forty three.
So the coal mines is 343 feet deep into the Earth's crust are these shafts.
Hence, the coal mines is 343 feet deep into the Earth's crust are these shafts.
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