Answer:
D) $247.90
Step-by-step explanation:
Understanding the equation:[tex] \underline{\sf{y = 2.44x + 3.90}}[/tex]
y is the dependent function whereas x is the independent function.
(What does this mean?)
The values of y depend on the values of x, I.e., any change in the value of x causes a change in the value of y, meanwhile, the opposite doesn't happen.
x represents the number of invitations y represents the cost to print the invitationsThe cost to print the invitation depends on the number of invitations, for real.
Solution to the problem:The question asks us to find the cost of printing 100 invitations.
Substituting x for 100:
y = (2.44 × 100) + 3.90
y = 244 + 3.90
y = 247.90
Answer:The value of y obtained for x = 100 is the cost of printing 100 invitations – $ 247.90
In 157.83, the 3 is at the tenths place value.
Select one:
True
False
Answer:
False
Step-by-step explanation:
Your answer is false because the 3 in 157.83 is in the hundereths place not the tenths place.
I hope it helps! Have a great day!
Lilac~
2P - 3 > P + 6
Thanks!
[tex]2p - 3 > p + 6 \\ 2p - p > 6 + 3 \\ p > 9[/tex]
can someone please answer this
Answer:
the area is 20 in
Step-by-step explanation:
3 times 4 is 12. since we used 3 inches out of the 11, we can only multiply the 8 inches with 1. 8 times 1 is 8. 12+8=20.
Surface area of rectangular prism
Answer:
the answer is 60
Step-by-step explanation:
you multiply what's on top 5*12=60
Help me please please please
Answer:
24 [tex]in^{3}[/tex]
Step-by-step explanation:
volume formula= l x w x h
Box A:
4 x 3 x 4 = 48
Box B: 48/2 = 24
Winter breaks starts in 3 4/7 weeks. Write the mixed number as a fraction greater than one.
Answer:
25/7
Step-by-step explanation:
mixed number to improper fraction greater than 1
-multiply the denominator by the whole number then add that number to the top number and put the original denominator under that number.
Someone pls help me
[tex]\huge\boxed{\boxed{Hello!}}[/tex]
How to Find the Area of a Rectangle:
A=LW, where L stands for Length and W stands for Width.
In this case, L is 4 cm more than the width, and the width is 10 cm.
Thus, the length is 14 cm.
Multiply 14 by 10:
A=140 cm²
[tex]\huge\boxed{\boxed{\pmb{Answer:{\boxed{\sf{A=140cm^{2} }}}}}}[/tex]
Hope it helps!
Enjoy your day!
Please feel free to ask if you have any doubts.
✷[tex]\mathfrak{MistySparkles}[/tex]✷
SOLVE ASAP NO LINKS PLS
Refer to the attachment
x^4 - 3x^2 - 10 = 0 using the u
Answer:
[tex]x ^ { 4 } - 3 x ^ { 2 } - 10 = 0\\Let, t = x^{2} \\\rightarrow \: t^{2}-3t-10=0 \\\\\\t=\frac{-\left(-3\right)(+/-)\sqrt{\left(-3\right)^{2}-4\times 1\left(-10\right)}}{2} \\t=\frac{3(+/-)7}{2} \\\\So,\\t = 5 \: and \: -2\\\\Then,\\x = \sqrt{5} \: and \: -\sqrt{5}[/tex]
Hope it helps ⚜
Over the last three evenings, Diane received a total of 105 phone calls at the call center. The third evening, she received 4 times as many calls as the second evening. The first evening, she received 9 fewer calls than the second evening. How many phone calls did she receive each evening?'
Answer:
Make an eqaution from here.
Let’s make evening 2 “x”
So the first evening has 9 less then the secon evening so…
x-9
Of course theres the second evening (x).
X-9+x
Then the third evening has 4 times as much as the second meeting so…
x-9+x+4x
And when solved, it has to equal 105.
So solve from here.
Combine like terms.
6x-9=105
Isolate
6x=114
x= 19
First evening is 9 less then 19, so 10.
The second evening was 19 calls.
The third evening was 4 times the second evening so, 19*4= 76
1st night = 10
2nd night= 19 calls
Thrid night= 76 calls
Benjamin threw a rock straight up from a cliff that was 60 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h=-16t^2+68t+60, how long will it take for the rock to hit the water?
Answer:
5 sec
Step-by-step explanation:
Hit the water, means h = 0
Solve -16t^2 + 68t +60 =0
4t^2 - 17t - 15 = 0
(4t + 3)(t - 5) = 0
so t = 5 sec
There are 6 children that each want to eat half of a chocolate bar. If they buy a
package of 4 chocolate bars, how many will be left over after they've eaten?
Answer:There would be 1 chocolate bar left over
Step-by-step explanation: 2 people can eat 1 bar.
Answer:
1 chocolate bar
Step-by-step explanation:
Since they want to eat 1/2 a bar, 2 people can eat 1 bar. 6 total children / 2 that eat 1 bar = 3 chocolate bars eaten
4 original chocolate bars - 3 already eaten = 1 remaining chocolate bar
What is the volume of this right rectangular prism?
A rectangular prism with a length of 6.1 centimeters, a width of 5.4 centimeters, and a height of 8 centimeters.
Enter your answer as a decimal to the nearest hundredths place in the box.
Solve for n. Isolate it on the left side of the equation.
Attached is a picture of the equation.
Will mark Brainliest! :)
Answer: Brainlest would be much appreciated
(A= amount P=principal r= interest rate n= number of times interest is compounded per unit 't' nt=time)
n=4. I'm not sure tho!!
Sum of two numbers 120 and difference is 60. Find two
numbers.
Answer: 30&90
Step-by-step explanation:
9th grade math (i think, or 8th grade)
Answer:
28.26
Step-by-step explanation:
a=3.14159...(pi)r^2
NEED HELP ASAP
Write an explicit formula for an, the nth term of the sequence 22, 20, 18,....
Answer:
I thino the awnser is 103.5
Step-by-step explanation:
Answer:
16,12,10,8
Step-by-step explanation:
a+(n-1)d
20-22=18-2=-2
Solve the following systems of equations by substitution method.
1) y = -2 and 4x - 3y = 18
IF YOU WANT TO ANSWER MORE: HERE IS THE REST PART OF THE QUESTION—
2) y = 6x - 11 and 2x + 3y = 7
3) x = -3y - 5 and 4x - 5y = -3
4) x = 5y - 7 and -2x - 3y = -12
5) 5x - 3y - 8 = 0 and 2x - 3y - 6 = 0
6) x - 3y - 11 = 0 and 5x + y - 7 = 0
7) 2x - 3y = -1 and y = x - 1
8) -4x + y = 6 and -5x - y = 21
Answer:
1) x = 3 and y = -2
2) x = 2 and y = 1
3) x = -2 and y = -1
4) x = 3 and y = 2
5) x = 2
6) x = 2 and y = -3
7) x = 4 and y = 3
8) x = -3 and y = -6
Step-by-step explanation:
1. Answer :
y = -2
4x - 3y = 18 ----(1)
Substitute y = -2 in (1).
4x - 3(-2) = 18
4x + 6 = 18
Subtract 6 from both sides.
4x = 12
Divide both sides by 4.
x = 3
So,
x = 3 and y = -2
2. Answer :
y = 6x - 11 ----(1)
2x + 3y = 7 ----(2)
Substitute y = 6x - 11 in (2).
2x + 3(6x - 11) = 7
2x + 18x - 33 = 7
20x - 33 = 7
Add 33 to both sides.
20x = 40
Divide both sides by 20.
x = 2
Substitute x = 2 in (1).
y = 6(2) - 11
= 12 - 11
= 1
So,
x = 2 and y = 1
3. Answer :
x = -3y - 5 ----(1)
4x - 5y = -3 ----(2)
Substitute x = -3y + 5 in (2).
4(-3y - 5) - 5y = -3
-12y - 20 - 5y = -3
-17y - 20 = -3
Add 20 to both sides.
17y = -17
Divide both sides by 17.
y = -1
Substitute y = -1 in (1).
x = -3(-1) - 5
= 3 - 5
= -2
So,
x = -2 and y = -1
4. Answer :
x = 5y - 7 ----(1)
-2x - 3y = -12 ----(2)
Substitute x = 5y - 7 in (2).
-2(5y - 7) - 3y = -12
-10y + 14 - 3y = -12
-13y + 14 = -12
Subtract 14 from both sides.
-13y = -26
Divide both sides by -13.
y = 2
Substitute y = 2 in (1).
x = 5(2) - 7
= 10 - 7
= 3
So,
x = 3 and y = 2
5. Answer :
5x + 3y - 8 = 0 ----(1)
2x - 3y - 6 = 0 ----(2)
Solve for 3y in (1).
5x + 3y - 8 = 0
Subtract 5x from both sides.
3y - 8 = -5x
Add 8 to both sides.
3y = -5x + 8
Substitute 3y = -5x + 8 in (2).
2x - (-5x + 8) - 6 = 0
2x + 5x - 8 - 6 = 0
7x - 14 = 0
Add 14 to both sides.
7x = 14
Divide both sides by 7.
x = 2
6. Answer :
x - 3y - 11 = 0 ----(1)
5x + y - 7 = 0 ----(2)
Solve for x in (1).
x - 3y - 11 = 0
Subtract 3y and 11 to both sides.
x = 3y + 11 ----(3)
Substitute x = 3y + 11 in (2).
5(3y + 11) + y - 7 = 0
15y + 55 + y - 7 = 0
16y + 48 = 0
Subtract 48 from both sides.
16y = -48
Divide both sides by 16.
y = -3
Substitute y = -3 in (3).
x = 3(-3) + 11
= -9 + 11
= 2
So,
x = 2 and y = -3
7. Answer :
2x - 3y = -1 ----(1)
y = x - 1 ----(2)
Substitute y = x - 1 in (1).
2x - 3(x - 1) = -1
2x - 3x + 3 = -1
-x + 3 = -1
Subtract 3 from both sides.
-x = -4
Multiply both sides by -1.
x = 4
Substitute x = x in (3).
y = 4 - 1
= 3
So,
x = 4 and y = 3
8. Answer :
-4x + y = 6 ----(1)
-5x - y = 21 ----(2)
Solve for y in (1).
-4x + y = 6
Add 4x to both sides.
y = 4x + 6 ----(3)
Substitute y = 4x + 6 in (2).
-5x - (4x + 6) = 21
-5x - 4x - 6 = 21
-9x - 6 = 21
Add 6 to both sides.
-9x = 27
Divide both sides by -9.
x = -3
Substitute x = -3 in (3).
y = 4(-3) + 6
= -12 + 6
= -6
So,
x = -3 and y = -6
Learn more:
brainly.com/question/26555025
Social studies
brainly.com/question/26539371
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brainly.com/question/26537282
Divisibility - Math
brainly.com/question/26525264
Mathematics
Thank You!
Answered by: ms115
Answer:
See below for all answers and explanations
Step-by-step explanation:
Problem 1
4x - 3y = 18
4x - 3(-2) = 18 <-- Substituting y = -2
4x + 6 = 18
4x = 12
x = 3
Problem 2
2x + 3y = 7
2x + 3(6x-11) = 7 <-- Substituting y = 6x - 11
2x + 18x - 33 = 7
20x - 33 = 7
20x = 40
x = 2
y = 6x - 11 <-- Substituting x=2 to solve for y
y = 6(2) - 11
y = 12 - 11
y = 1
Problem 3
4x - 5y = -3
4(-3y-5) - 5y = -3 <-- Substituting x = -3y - 5
-12y - 20 - 5y = -3
-17y - 20 = -3
-17y = 17
y = -1
x = -3y - 5 <-- Substituting y = -1 to solve for x
x = -3(-1) - 5
x = 3 - 5
x = -2
Problem 4
-2x - 3y = -12
-2(5y-7) - 3y = -12 <-- Substituting x = 5y - 7
-10y + 14 - 3y = -12
-13y + 14 = -12
-13y = -26
y = 2
x = 5y - 7 <-- Substituting y=2 to solve for x
x = 5(2) - 7
x = 10 - 7
x = 3
Problem 5
5x - 3y - 8 = 2x - 3y - 6 <-- Setting equations equal to each other
5x - 8 = 2x - 6 <-- Eliminating y-variable to solve for x
3x - 8 = -6
3x = 2
x = 2/3
5x - 3y - 8 = 0 <-- Substituting x = 2/3 into first equation
5(2/3) - 3y - 8 = 0
10/3 - 3y - 8 = 0
10/3 - 3y - 24/3 = 0
-14/3 - 3y = 0
-3y = 14/3
y = -14/9
Problem 6
x - 3y - 11 = 0 <-- Solve for x
x - 3y = 11
x = 11 + 3y
5x + y - 7 = 0
5(11+3y) + y - 7 = 0 <-- Substituting x = 11 + 3y
55 + 15y + y - 7 = 0
55 + 16y - 7 = 0
48 + 16y = 0
16y = -48
y = -3
x = 11 + 3y <-- Substitute y=-3 into first equation to solve for x
x = 11 + 3(-3)
x = 11 - 9
x = 2
Problem 7
2x - 3y = - 1
2x - 3(x-1) = -1 <-- Substituting y = x - 1
2x - 3x + 3 = -1
-x + 3 = -1
-x = -4
x = 4
y = x - 1 <-- Substitute x=4 to solve for y
y = 4 - 1
y = 3
Problem 8
-4x + y = 6 <-- Solve for y in first equation
y = 6 + 4x
-5x - y = 21
-5x - (6+4x) = 21 <-- Substituting y = 6 + 4x
-5x - 6 - 4x = 21
-9x - 6 = 21
-9x = 27
x = -3
y = 6 + 4x <-- Substitute x = -3 to solve for y
y = 6 + 4(-3)
y = 6 - 12
y = -6
a figure is dilated by a factor of six
If a figure is dilated by a factor of 6, the perimeter of the figure will change by a factor of 6.
Step-by-step explanation:
The objects that have the same shape are known as similar figures. Since they are similar in shape it doesn't necessary for those objects to have the same size.
Dilation is the process that enlarges or shrinks the size of an object to its similar figure without changing its size. The Dilation is based on a factor that makes the object to enlarge or shrink.
Since its size has changed so as the perimeter will be changed for both of the figures. The perimeter of an object remains same as the scale factor used to dilate the object.
Consider a square with its side as 2 cm initially and dilated with factor 3.
Perimeter of the square = 4 a. where a is the side.
Then the perimeter of the square will be 8 cm initially.
After dilation the side of the square will be changed as 6.
Then the perimeter will change as 24 cm.
Thus the perimeter of the square initially has increased 3 times after dilation.
multi step problems with percents
Answer:
142.24$
Step-by-step explanation:
112 = 100% 9x112
/ 100100. = 10.08$
? = 9%
112 = 100% 18x112 /100 =. 20.16$
? = 18%
so.......
112$ + 20.16$ + 10.08$
= 142.24$
Write the number.
18 ones
9 tens
2 hundreds
Answer:
308
Step-by-step explanation:
helpp me pleass ..........
Answer:
Step-by-step explanation:
1 and 7 is Corresponding
2 and 8 is Alternate exterior
this is what I know but I am not sure
Based on the Diagram below
Answer:
BD=ALTITUDES
CD=MEDIANS
AD=ANGLE BISECTORS
write as a polynomial. a(a+9b)^2
A flagpole is 45 feet tall. A rope is tied to the top of the flag pole and secured to the ground 10 feet from the base of the flagpole. Will a 35 foot piece of rope be long enough to secure the flagpole? Justify your answer.
i give brainliest
Answer:
So the answer would be no, because the length of the rope is needs to be 46 and 35 is not long enough
Step-by-step explanation:
A flagpole, rope and the length of secure point from the flagpole are forming the right triangle, where the rope is a hypotenuse. Let a = 45 and b = 10ft. Use Pythagorean Formula to find length of the rope c
a² + b² = c²
Since we are going to solve for c, we set up the equation like this:
c² = 45² + 10² (Substitute into formula)
c² = 2,025 + 100 (Add)
c² = 2,125 (Simplify)
√c² = √2,125 (Take the square root from both sides)
c = 46.09772228646444 (Round to the nearest whole number)
c = 46
So the answer would be no, since the length of the rope needs to be 46ft long and a 35 foot piece of rope is not long enough.
Solve the equation.
[tex]\sqrt{y^{2} -20y+100 }= y-10[/tex]
Notice that
y² - 20y + 100 = y² - 2•10y + 10² = (y - 10)²
Then
√(y² - 20y + 100) = y - 10
is equivalent to
√((y - 10)²) = y - 10
|y - 10| = y - 10
If y ≥ 10, then |y - 10| = y - 10, and
y - 10 = y - 10 ⇒ 0 = 0
so there are infinitely many solutions, y ≥ 10.
Otherwise, if y < 10, then |y - 10| = -(y - 10), and
-(y - 10) = y - 10 ⇒ 10 = -10
which is false, so there are no solutions in this case.
[tex]\\ \tt\hookrightarrow \sqrt{y^2-20y+100}=y-10[/tex]
[tex]\\ \tt\hookrightarrow y^2-20y+100=(y-10)^2[/tex]
[tex]\\ \tt\hookrightarrow y^2-20y+100=y^2-20y+100[/tex]
Both sides are equal
Hence
No solutionhelpppppppppppppppppppppppppp
Answer:
6, 12, 24, 48, 96.
All the terms are multiples of 6.
Step-by-step explanation:
The given rule is to multiply by 2.
To find the next 4 numbers, we need to multiply 6, and the products that we've obtained after.
First number:
[tex]6 \times 2 = 12[/tex]
12 is our first number.
Second Number:
[tex]12 \times 2 = 24[/tex]
24 is our second number.
Third Number:
[tex]24 \times 2 = 48[/tex]
48 is our third number.
Last Number:
[tex]48 \times 2 = 96[/tex]
96 is our last number.
All the terms are multiples of 6.
Proof:
*When you divide 12 by 6, 24 by 4, 48 by 8, 96 by 16, the quotient is 6.6 has multiples of 12, 24, 48, and 96.6 has multiples of 12, 24, 48, and 96.12, 24, 48, and 96 have a factor of 6.27. The balance of Janet's bank account is -$15, and the balance of Jayden's bank account is
-$12. Which statement about the balances is true?
A Janet has a smaller balance than Jayden, which can be expressed by the inequality
-$15 > -$12.
B Janet has a smaller balance than Jayden, which can be expressed by the inequality
-$15 < -$12.
C Janet has a larger balance than Jayden, which can be expressed by the inequality
-$15 > -$12.
D Janet has a larger balance than Jayden, which can be expressed by the inequality
-$15 < -$12.
Answer:
I believe its C sorry if im wrong
Step-by-step explanation:
HELP me please i dont know the answer to this
Answer:
c
Step-by-step explanation:
Ms Bonilla is saving for a vacation she currently has 150 in her savings account and plans to add $25 to the account each week .
Enter a function, S(w) that describes the total amount in her savings account as a function of weeks , w
Answer and Step-by-step explanation:
Alright, so when creating any type of math problem, it is important to identify the parts of the problem and where they go. First, we need to start by putting the problem together. We will use one of the most common forms of equations of math, also known as the linear equation of y=mx+b.
So we have: S(w)=__x + __. S(w) is also equal to f(x), which is also equal to y. So: y= __x + __.
Let's start filling this equation in. So, because it says that she will add 25 dollars each week, The problem is addition. Also, the 25 dollars each week will represent the mx in this situation. Here's why:
The x in this can stand for the amount of week she added this 25 dollars to her account. So:
y= 25x + __.
Now, we can add the 150 to the problem because that is what she started with for this one-time deal. So now we have:
y= 25x + 150.
You can now where everything is represented, but we are not done. Let's change y and x back into S(w) and w like the question asks us to have. So:
S(w)= 25w + 150.
If you want to solve this question, just replace the number of weeks in place of all w's in the equation, like this: S(2)= 25(2) + 150.
I hope that this helps.