Answer:
(2x6)+6
2x6=12
12+6=18
Final answer:
Two-step equations that equal 18 can be solved by performing two operations to isolate the variable, such as subtracting and then dividing, or adding and then dividing.
Explanation:
A student is asking for examples of two-step equations that result in an answer of 18. Two-step equations involve performing two operations to solve for the unknown variable. For instance, a simple two-step equation could be x/2 + 5 = 14, where you would first subtract 5 from both sides to get x/2 = 9, and then multiply both sides by 2 to find x = 18.
Another example could be 2x - 4 = 32. To solve this equation, you would first add 4 to both sides, resulting in 2x = 36, and then divide both sides by 2 to get x = 18.
These examples help students understand how to manipulate equations using addition, subtraction, multiplication, or division to isolate the variable and solve the equation.
Simplify: -3(4x - 5)
12x -15
12x + 15
-12x + 15
Simplify: -5x + 8 - 11x - 12
-16x - 4
16x + 4
16x - 4
2(4x - 8) - 10
8x + 26
8x - 26
-8x - 26
Answer:
[tex]8x - 26 \\ -16x - 4 \\ -12x + 15[/tex]
Step-by-step explanation:
2(4x - 8) - 10
8x - 16 - 10
|_______|
8x - 26
-5x + 8 - 11x - 12
___ ___ _____ ____
___ ____
-16x - 4
-3(4x - 5)
-12x + 15
For the third and first exercises, you just use the Distributive Property, and for the second exercise, all you are doing is combining like-terms.
I am joyous to assist you anytime.
What is the cube of the difference of 40 and a number
Answer:
(40-y)^3
Step-by-step explanation:
Make the unknown y
(40-y)^3
Answer:
The difference can be expressed as
y=x³+120x²-4800x+64000
Or
y=(40-x)³
Step-by-step explanation:
Step one
To solve the problem problem let us first initialize the number to be x
By breaking the statement into component parts and implementing
Step two
1. The difference between 40 and the number
=(40-x)
2. The cube of the difference
= (40-x)³
Let us equate the expression to y
y=(40-x)³
Step three
Expanding the expression we have
y= (40-x)(40-x)(40-x)
Opening bracket we have
y=(1600-40x-40x+x²)(40-x)
y=64000-1600x-
1600x+40x²-1600x+40x²+40x²-x³
y=x³+120x²-4800x+64000
Find the quotient:
32) 8,736
Answer:
273
Step-by-step explanation:
8736÷32=273
273×32=8736
Estimate 29.14 x 5.2
Answer:
About 151.500
Step-by-step explanation:
Actual answer is 151.528 Just go with mental math.
7/5 rational or irrational
Answer:rational
Step-by-step explanation:
Answer:
Step-by-step explanation:
Every integer is a rational number, since each integer n can be written in the form n/1. For example 5 = 5/1 and thus 5 is a rational number. However, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.
what is
[tex] \sqrt{180 } [/tex]
simplified?
Answer:
Step-by-step explanation:
I don't know exactly how simplified it will be, but you can get the square root smaller.
180: 2*2 * 3*3 *5
For every pair of prime factors you can take 1 of the pair outside the the square root and throw the other one away
sqrt(2*2*3*3*5) = 2 * 3 * sqrt(5) = 6*sqrt(5)
Enter the numerical coordinates of the vertices of quadrilateral ABCD in the table. (Point A has been done for you.) Then predict the numerical coordinates of the vertices of quadrilateral A′B′C′D′ as the figure translates four different ways: 7 units up, 1 unit down, 4 units to the right, and 3 units to the left.
Answer:
Step-by-step explanation: Edmentum Answer
Answer:
Step-by-step explanation: I got it wrong lol
What is 4/3 - (-3/4)
Answer:
0 I think
Step-by-step explanation:
Answer:
25/12 or 2 1/12
Step-by-step explanation:
4/3 - (-3/4) =
= 4/3 + 3/4
= 16/12 + 9/12
= 25/12
= 2 1/12
divide line segments
please help me with this thanks a lot please I dont really understand show work :)
tis noteworthy that the segment contains endpoints of A and C and the point B is in between A and C cutting the segment in a 1:2 ratio,
[tex]\bf \textit{internal division of a line segment using ratios} \\\\\\ A(-9,-7)\qquad C(x,y)\qquad \qquad \stackrel{\textit{ratio from A to C}}{1:2} \\\\\\ \cfrac{A\underline{B}}{\underline{B} C} = \cfrac{1}{2}\implies \cfrac{A}{C}=\cfrac{1}{2}\implies 2A=1C\implies 2(-9,-7)=1(x,y)\\\\[-0.35em] ~\dotfill\\\\ B=\left(\frac{\textit{sum of "x" values}}{\textit{sum of ratios}}\quad ,\quad \frac{\textit{sum of "y" values}}{\textit{sum of ratios}}\right)\\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf B=\left(\cfrac{(2\cdot -9)+(1\cdot x)}{1+2}\quad ,\quad \cfrac{(2\cdot -7)+(1\cdot y)}{1+2}\right)~~=~~(-4,-6) \\\\[-0.35em] ~\dotfill\\\\ \cfrac{(2\cdot -9)+(1\cdot x)}{1+2}=-4\implies \cfrac{-18+x}{3}=-4 \\\\\\ -18+x=-12\implies \boxed{x=6} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{(2\cdot -7)+(1\cdot y)}{1+2}=-6\implies \cfrac{-14+y}{3}=-6 \\\\\\ -14+y=-18\implies \boxed{y=-4}[/tex]
for every 8 candles that you sell you raise $96 you raise $288 how many candles did you sell
the number 3456 is divisible by which single-digit numbers?
Answer:
1, 2, 3, 4, 6, 8, 9
The number 3456 is divisible by the single-digit numbers 2, 3, 4, 6, and 8.
Explanation:The number 3456 is divisible by the single-digit numbers 2, 3, 4, 6, and 8.
To determine if a number is divisible by another, we check if the remainder is 0 when dividing the number being tested by the potential divisor. In this case, for example, if we divide 3456 by 2, we get no remainder, so it is divisible by 2.
Similarly, if we divide 3456 by 3, 4, 6, or 8, we get no remainder in each case, so it is also divisible by these numbers.
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What is the quadratic equation to this question
Answer:
f(x) = 4x − 12
Step-by-step explanation:
It's not quadratic. It's linear. Each time x increases by 1, f(x) increases by 4. So the slope is 4. The y-intercept (when x=0) is -12. The equation of the line is therefore:
f(x) = 4x − 12
Next number in the sequence 1 4 9 16 25
The next number in the sequence is 36.
Starting from 1, the number increases by 3, 1 + 3 = 4. But the next number, the number it's being increased by increases by 2. 3 + 2 = 5, 4 + 5 = 9. And again, 5 + 2 = 7, 7 + 9 = 16. And again. 7 + 2 = 9, 16 + 9 = 25. Therefore, it is increased to + 11, and the next number is 36.
I hope this helped, and you have a great day!
Answer:
36
Step-by-step explanation:
1² = 1 2² = 43² = 94² = 165² = 256² = 36|b|+b^3;b=-2 evaluate the expression
Answer:
-6
Step-by-step explanation:
[tex] | - 2| = 2 \\ {( - 2)}^{3} = ( - 2)( - 2)( - 2) = ( - 8) \\ \\ | - 2 | + {( - 2)}^{3 } = 2 - 8 = - 6[/tex]
To evaluate the expression |b|+b^3 when b=-2, substitute -2 for b, evaluate |b| and b^3 separately and then add the results.
Explanation:To evaluate the expression |b|+b^3 when b=-2, we substitute -2 for b in the expression.
The absolute value of a number is that number's distance from zero on a number line, regardless of which direction. This means that the absolute value of any negative number is its positive equivalent. Thus, |b| is the same as |-2|, which equals 2.
Secondly, b^3 means b multiplied by itself twice. So (-2)^3 equals -2*-2*-2 which is -8.
First, we evaluate |b|. The absolute value of -2 is 2, so |b| = 2.
Next, we evaluate b^3. (-2)^3 = -8.
Finally, we add the two results together: 2 + (-8) = -6.
Therefore, when b=-2, the expression |b|+b^3 evaluates to -6.
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Worth 13 Points!
write each rational number in the form a/b ( <---- this is when i got confused ), where a/b are integers.
1. 0.3 _______
2. 2 7/8 ____
3. -5 _____
4. 16 _____
5. -1 3/4 _____
6. -4.5 _____
7. 3 _____
8. 0.11 ____
Answer:
7 is rmthe correct answer as it's value is 3 the answer is on no 7.
Write to show how you make a ten. Then add. What is 7+8?
Answer:14
Step-by-step explanation:
Answer:
it's 15
Step-by-step explanation:
Which expressions have products of -0.64? If they do not have a product of -0.64, explain a way to make them have that product.
A.(0.32)(-2)
B.1.6(-4)
C.0.64(-1)
D.(1.28)(-0.5)
E.(-4)(-0.16)
Answer:
A, C, and D are correct
Step-by-step explanation:
A. (0.32)(-2)
(0.32)(-2) = -0.64
Correct.
B. 1.6(-4)
1.6(-4) = -6.4
Wrong.
Divide by 10.
[tex]\dfrac{-6.4}{10} = \mathbf{-0.64}[/tex]
C. 0.64(-1)
0.64(-1) = -0.64
Correct.
D. (1.28)(-0.5)
(1.28)(-0.5) = 0.64
Correct.
E. (-4)(-0.16)
(-4)(-0.16) = 0.64
Wrong.
Multiply by -1.
(0.64)(-1)= -0.64
A farmer plans to use 180 feet of fencing to enclose a rectangular region, using part of a straight river bank instead of fencing as one side of the rectangle, as shown in the figure.
The farmer can determine the dimensions of the fenced area by solving the formula L + 2W = 180 feet, where L is the length of the fenced region along the river bank and W is the width.
Explanation:This is a classic application of the perimeter of a rectangle in the field of Mathematics. If the farmer is using part of a straight river bank instead of fencing for one side of the rectangle, then he only needs fencing for the other three sides. The formula to calculate the perimeter of a rectangle is 2(length) + 2(width), but since one side is not fenced, it is length + 2(width) in this case.
If we assume the length (L - along the river bank) and width (W) of the rectangular area, then the equation can be expressed as:
L + 2W = 180 feet
This formula can help the farmer calculate the dimensions of the fenced area needed in order to use his materials most effectively. He needs to solve this equation to find the values of length and width that add up to 180 feet.
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What is the median of 6, 7, 10, 12, 15?
Answer:
10
Step-by-step explanation:
can someone help me do this problem please
|2x-4|=22
Answer:
2x-4 = 22
2x = 26
x=13 check |26-4|=22
-(2x-4) = 22
-2x+4 = 22
-2x = 18
x=-9 Check |-18 -4| = |-22| = 22
Answer:
x=13
Step-by-step explanation:
Finding the answer to this is very simple actually. you can actually solve this problem without the || because x has to be a positive value for this to work. 2x-4=22 can be done by adding 4 to both sides and getting the answer 26. Isolate the variable by dividing both sides by 2 to get x=13
11.3 divided by 100
how many vertical asymptotes does the graph of this function have? f(x)=5/3x(x+1)(x-7)
Answer:
The graph of the function has three vertical asymptotes
Step-by-step explanation:
we have the function
[tex]f(x)=\frac{5}{3x(x+1)(x-7)}[/tex]
we know that
To find the vertical asymptotes of a rational function, simply set the denominator equal to 0 and solve for x.
so
[tex]3x(x+1)(x-7)=0[/tex]
The values of x are x=-1,x=0, x=7
using a graphing tool
see the attached figure to better understand the problem
therefore
The graph of the function has three vertical asymptotes
Answer:
3. The answer is 3
Step-by-step explanation:
Select the prime number and multiply by 1000
4. 6. 7. 8. 15. 21
7 is the prime number.
7 × 1000 = 7000
Find an equation of the line that is perpendicular to 9x + 5y = - 1. Write your answer in the form y = mx + b.
Answer:
Step-by-step explanation:
move x to the right making the equation 5y=-9x-1 then divide both sides by 5 to get y= -9/5x-1/5. the slope of a perpendicular line is the opposite reciprocal of the slope from the og eq. so the slope of the new line is 5/9x and the y-intercept stays the same so the equation should be y=5/9x-1/5
An equation of a line perpendicular to the line represented by the equation y=-1/2x-5 and passing through (6,-4)
Answer:
y = 2x - 16
Step-by-step explanation:
Perpendicular Lines have OPPOSITE MULTIPLICATIVE INVERSE Rate of Changes [Slopes]:
-½ → 2
-4 = 2[6] + b
-16 = b
y = 2x - 16 >> Perpendicular Line in Slope-Intercept Form
I am joyous to assist you anytime.
The equation of the line that is perpendicular to y = -1/2x - 5 and passes through the point (6, -4) is y = 2x - 16. This is found using the concept of negative reciprocals and the point-slope form of the line equation.
Explanation:The equation of the original line given is y = -1/2x - 5. The slope of this line is -1/2. Since a line perpendicular to this line will have a slope which is the negative reciprocal of -1/2, the slope of the line we're seeking is 2 (because -1 divided by -1/2 is 2).
We also know from the question that the line we're seeking passes through the point (6, -4). Using the slope-intercept form of the equation of a line (y = mx + b), where m is the slope and b is the y-intercept, we substitute the slope and the coordinates of the point into the equation to solve for 'b': -4 = 2*6 + b. Solving this equation gives us b = -16.
Therefore, the equation of the line that is perpendicular to y = -1/2x -5 and passing through the point (6, -4) is y = 2x - 16.
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How to write 12 ten thousands 8 thousands 14 hundreds 7ones
Answer:
129,407.
Step-by-step explanation:
12 ten-thousands = 12*10000=120,000.
8 thousands = 8*1000=8000;
this gives us 120,000+8,000=128,000.
14 hundreds = 14*100=1400;
this gives us 128,000+1,400=129,400.
7 ones = 7*1=7;
this gives us 129,400+7=129,407.
Answer:
12,000 8,000 1,400 7
Step-by-step explanation:
I hope u get a tutor if u dont know how to do this I hope this helps
transform pls in fraction (transformati in fractie pls) 3,(7)
Answer:
The fraction number is [tex]\frac{34}{9}[/tex]
Step-by-step explanation:
we have
[tex]3.777...[/tex]
This is a repeating decimal (a decimal that has a digit, that repeat over and over and over again without ever ending)
Convert to fraction number
Let
[tex]x=3.777...[/tex]
[tex]10x=37.777...[/tex]
we know that
[tex]10x-x=37.777...-3.777...[/tex]
[tex]9x=34[/tex]
[tex]x=\frac{34}{9}[/tex]
therefore
The fraction number is [tex]\frac{34}{9}[/tex]
Let's assume that bacteria doubles every 10 minutes. If a culture begins with exactly
30 bacterial cells, how many bacteria will be present after 1 hour?
A 960 Bacteria
B 1000 Bacteria
C 1520 Bacteria
D 1920 Bacteria
Greetings!
First off, we should know that there are 60 minutes in an hour. Therefore, the first step we will need to do, is divide 60 by 10.
60 ÷ 10 = 6
As shown above, we now know we will have to double the number 6 times. If we start with 30, this will be our first problem.
(1) 30 + 30 = 60
And so on and so forth...
(2) 60 + 60 = 120
(3) 120 + 120 = 240
(4) 240 + 240 = 480
(5) 480 + 480 = 960
(6) 960 + 960 = 1920
And after our sixth time we have our answer:
1920 bacteria
Hope this helps!
~Fluerie
What is the slope of the line represented by the equation y = y equals 4 Over 5
x minus 3.x – 3? –3 Negative 4 Over 5 EndFraction. StartFraction 4 Over 5 . 3
The slope of the given line is:
[tex]\dfrac{4}{5}[/tex]
Step-by-step explanation:We know that if a line is represented in the slope intercept form i.e.
[tex]y=mx+c[/tex]
then m represents the slope of the line and c represents the y-intercept of the line.
Here we are given a equation of a line as follows:
[tex]y=\dfrac{4}{5}x-3[/tex]
i.e. on comparing the equation with the slope-intercept form of the line we have the slope of the line is:
[tex]m=\dfrac{4}{5}[/tex]
Final answer:
The slope of the equation y=4/5x-3 is 4/5, which represents the consistent rise over run for the line.
Explanation:
The slope of the line is represented by the equation [tex]y = \frac{4}{5}x - 3 is \frac{4}{5}.[/tex] In the standard form y = mx + b, where m is the slope and b is the y-intercept, and the coefficient of x represents the slope of the line.
Therefore, by comparing the given equation to the standard form, the number 4/5 in front of x is the slope of the line. The slope indicates a rise of 4 units on the vertical axis for every increase of 5 units on the horizontal axis. The slope of a line remains constant along the entire length of the line.
Jason burned 1,400 calories Friday playing 1 hour of basketball and canoeing for 2 hours. On Saturday, he spent 2 hours playing basketball and 3 hours canoeing and burned 2,500 calories. How many calories did he burn per hour when playing basketball?
Answer: He burned 800 calories per hour playing basketball.
Step-by-step explanation:
Let be "b" the amount of calories per hour Jason burned playing basketball and "c" the amount of calories per hour Jason burned canoeing.
Set up a system of equations:
[tex]\left \{ {{b+2c=1,400} \atop {2b+3c=2,500}} \right.[/tex]
You can apply Elimination Method:
Multiply the first equation by -3.Multiply the second equation by 2.Add these equations.Finally, solve for "b".Therefore, you get:
[tex]\left \{ {{-3b-6c=-4,200} \atop {4b+6c=5,000}} \right.\\.............................\\b=800[/tex]