marvin the math magician has a problem for you. he wants to buy some magic wands and some magic hats. the wands cost $8 each and $5 for each hat. how much will marvin haft to pay for 12 wands and 7 hats?
Answers
Answer:
8x + 5y
12(8) + 7(5) =
96 + 35 =
131
$131
Related Questions
C. Read and analyze the problem, then solve.
1. Mother bought 20 meters of curtain material. She used 8 metres for the living room, 73
meters for the dining room, and the rest for the kitchen. How many meters did she use for the
curtain in the kitchen?
Answers
Given parameters:
Total length of curtains bought = 20m
She used 8m for the living room
She used 7m for the dining room
unknown:
Quantity used for the kitchen = ?
Solution:
Quantity used for the kitchen = Total length - (living room + dining room)
Input the parameters given solve;
Quantity used for the kitchen = 20 - (8 + 7) = 5m
The length of curtain used for the kitchen is 5m
the area of the rhombus with diagonal 6.2cm and 10cm is _ square cm
Answers
Answer:
31cm².
Step-by-step explanation:
as we know that ,
area of Rhombus equal 1/2 of product of their diagonals .
product of the diagonals equal 6.2*10=62
1/2*62=31cm².
The answer to the problem 5 x (4 + 1) is called a _____. 2 points
Answers
Answer:
25
Step-by-step explanation:
5x(4+1)=
4+1=5
5x5=25
Select the graph of the function f (x) = 1/4 Then find the value of f (x) when x = -6.
ASSPPPP
WILL GIVE Y’ALL BRAINLIEST
Answers
And the answer is 9
What is the distance between points (-2,1) and (2,4)?
What is the distance between points (1,2) and (3,4)
Answers
Answer:
✓{2-(-2)2+(4-1)2
✓16+9
✓25
5
Step-by-step explanation:
using this formula you may find
✓(x2-x1)2+(y2-y1)2
Answer:
(-2,1) and (2,4) = 5
(1,2) and (3,4) = 2.82
Step-by-step explanation:
Plz help me with this ASAP!
Answers
Angel H and G are both are 51 degrees, and angle I is 78 degrees.
The two angles (H and G) are equal to each other, but before we know what the angles are, we must find x.
[tex]5x + 6 = 2x + 33[/tex]
[tex]3x = 27[/tex]
[tex]x = 9[/tex]
Plug in x for one equation:
[tex]5x + 6[/tex]
[tex]5(9) + 6[/tex]
[tex] = 51[/tex]
Therefore,
[tex]m < h = 51 \:[/tex]
and
[tex]m < g = 51[/tex]
And because we know the angles within a triangle = 180, we subtract 102 from 180 to find m<I:
[tex]180 - (51 + 51) = [/tex]
[tex]180 - 102 = [/tex]
[tex] = 78[/tex]
Maya’s grandfather open a savings account for a while she was born. He open the account with $100 and not add or take out money after that. The money in the account grows at a rate of 4% per year. Make a table to show the amount in the account from the time Maya was born until she turn 10.
Answers
Answer:
1140
Step-by-step explanation:
because 4% equals 4 pounds × 10 equals 40% which equals 40 pounds and 100 times 10 equals 1000 plus the extra 100 pounds from the beginning
find the nth terms of the sequence with the following first four terms as shown in the table.
________________________
n 1 2 3 4
________________________
an 5 9 13 17
_______________________
Answers
Answer:
see explanation
Step-by-step explanation:
Both sequences have a common difference between consecutive terms, that is
2 - 1 = 3 - 2 = 4 - 3 = 1
This indicates the sequence is arithmetic with n th term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 1 and d = 1 , thus
[tex]a_{n}[/tex] = 1 + n - 1 = n
--------------------------------------------------------------------
Similarly
d = 9 - 5 = 13 - 9 = 17 - 13 = 4 and a₁ = 5 , then
[tex]a_{n}[/tex] = 5 + 4(n - 1) = 5 + 4n - 4 = 4n + 1
What is the slope of a line perpendicular to the line whose equation is
2x - 5y = -40. Fully reduce your answer.
Answers
Consider the highlighted products the common factor is
Answers
Answer:
3
Step-by-step explanation:
Will MARK BRAINLIEST!!!!! What is the domain of the given function?
{x | x = –6, –1, 0, 3}
{y | y = –7, –2, 1, 9}
{x | x = –7, –6, –2, –1, 0, 1, 3, 9}
{y | y = –7, –6, –2, –1, 0, 1, 3, 9}
Answers
(-6,-1,0,3)
From the sum of 3x-4y+5z,2x-7y and 9z-5y subtract -2xy-2y-2z
Answers
Answer:
5x - 14y + 16z + 2xy
Step-by-step explanation:
Given expressions:
3x - 4y + 5z
2x - 7y
9z - 5y
-2xy - 2y -2z
Solution:
Sum of 3x - 4y + 5z
2x - 7y
9z - 5y
= 3x - 4y + 5z + 2x - 7y + 9z - 5y
= 3x + 2x - 4y - 7y -5y + 5z + 9z
= 5x - 16y + 14z
Subtract -2xy - 2y -2z
= 5x - 16y + 14z - ( -2xy - 2y -2z )
= 5x - 16y + 14z + 2xy + 2y + 2z
= 5x - 16y + 2y + 14z + 2z + 2xy
= 5x - 14y + 16z + 2xy
is the slope of the line with equation y-3=-1/2(x-2)
Answers
Answer:
-1/2 is the slope.
Step-by-step explanation:
y-3 = -1/2(x-2)
y-3 = -1/2x +1
y= -1/2x + 4
m= -1/2
25. Willa purchases a vase for her kitchen
that is shaped like a cube and will hold 343
cubic inches of water. What are the
dimensions (length, width and height) of the
vase?
Answers
Answer:
7,7, and 7
Step-by-step explanation:
If she vase is cubical we know that all 3 dimensions are the same. This means that x^3 = 343. So we know the answer is the cube root of 343, which is 7
The dimensions of the cubic vase are 7 by 7 by 7.
What is a cube?A three-dimensional object with six congruent square faces is called a cube. The cube's six square faces all have the same dimensions.
Given that the volume of the cubic vessel is 343 cubic inches.
The formula for the volume of a cube of side length a is:
V =a³
Substitute V= 343:
343 = a³
Or, a = ∛343
a = 7
Hence, the dimensions of the cubic vase are 7 by 7 by 7.
Learn more about cubes:
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Solve the equation. If the equation is an identity, choose identity. If it has no solution, choose no solution.
- 1/2x+1=7x−14
(the 1/2 is got a - in the middle before it)
Answers
Answer:
x=2
Step-by-step explanation:
- 1/2x+1=7x−14
Multiple-choice test with 50 questions has five possible choices for each question. There are 4 marks for each correct answer, -1 mark for each incorrect answer, and 0 marks for each unanswered question. What is the total score of a student with 35 correct answers, 10 incorrect answers and 5 unanswered
Answers
Answer:
Total score of a student = 130 marks
Step-by-step explanation:
Marks for each correct answer = [tex]4[/tex]
Marks for each incorrect answer = [tex]-1[/tex]
Marks for each unanswered question = [tex]0[/tex]
Number of correct answers = 35
Number of incorrect answers = 10
Number of unanswered answers = 5
So,
Total score of a student [tex]=35(4)+10(-1)+5(0)=140-10+0=130[/tex] marks
Answer:
35 correct: 35x4= 140 marks
10 incorrect: 10x -1= -10 marks
5 unanswered: 5x0= 0 marks
140-10+0= 130 marks
Step-by-step explanation:
Steps for solving 4x - 12 = 20 are shown.
Explain how Step 3 helps solve the equation.
4x - 12 = 20
4x-12 +12 - 20 +12
4x = 32
4x32
4 4
X = 8
Original equation
Step 1
Step 2
Step 3
Step 4
A. Multiplying both sides by 4 undoes the division.
B. Dividing both sides by 4 eliminates the variable.
C. Multiplying both sides by 4 isolates the variable.
D. Dividing both sides by 4 isolates the variable.
SUBMIT
Answers
For the given equation, in step 3 it is dividing both sides by 4 to eliminate the variable. Hence, option B is correct.
What is an arithmetic operation?The four fundamental operations of arithmetic are addition, subtract, multiply, and division of two or more numbers. Included in them is the study of integers, especially the order of operations, which is important for all other aspects of mathematics, notably algebra, information management, and geometry.
The step 3 according to the question is,
4x = 32
Dividing both sides by 4,
x = 32/4
x = 8
Therefore, the final result will be x = 8.
To know more about arithmetic operation:
https://brainly.com/question/13585407
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Triangle angles review (khan academy)
Find the value of x in the triangle shown below
X = ?
Answers
Answer:
The correct answer is 44°
Find the missing exponent
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The value of -4^2 is _____.
8
-16
16
-8
And please tell me why
Answers
Answer:
16
Step-by-step explanation:
A negative times a negative is a positive. -4^2 is equal to -4 times -4. This would give us 16.
3. Simplify the expression.
4(2x - 3)
ASAP PLS HELP
Answers
Answer with step-by-step explanation:
(4 x 2x) - (4 x 3) = 8x - 12
Hope this was helpful!
Answer: 8x + -12
Explanation: Let's simplify this problem using the distributive property.
The first thing we want to do is change the minus to plus a negative.
Now we can distribute or multiply this 4 times
each of the terms inside the set of parenthses.
So we get 4(2x) + 4(-3) and this simplifies to 8x + -12.
Note that if you wrote your answer as 8x - 12, it means the same thing.
Find the midpoint of the segment with the following endpoints.
(6,3) and (0,9)
help please
Answers
x1 = 6
y1 = 3
x2 = 0
y2 = 9
add the x’s together:
x1 + x2 aka:
6 + 0 = 6
divide 6 by 2 which = 3
that’s our new x.
now we do the y’s.
y1 + y2 aka:
3 + 9 = 12
divide 12 by 2, and we get 6.
that’s our new y.
now we put the x and y together as an ordered pair and the midpoint:
(3,6)
hope this helps! ❤️
I need help ASAP cause I'm stuck
Answers
Answer:-16r^7
Step-by-step explanation:
An architect is designing a rectangular house that is 60 feet long and 40 feet wide. He uses of the area for the 1/4 living room and of the area for the 1/6 kitchen. What area, in square feet, is left over for other parts of the house?
A 1400 ft2
B 1000 ft2
C 140 ft2
D 100 ft2
Answers
Answer:
6o×40=2400
area 1/4=2400÷4=600
area 1/6=600÷6=100
(d)=100 ft2
pls help it doesn't have the answers
Answers
I don't know why doesn't have answers, but I know the answer 7/20.
PLZZ HELP IF RIGHT I LL MART BRAINLYLIST!!!!!
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Answer:
The length of C'D' = 2.8
This is because, ABCD is rotated on the point R 55 degrees
So, now, if you turn back the rotation, you will get, that CD = C'D'
Now, CD = 2.8 , So, C'D' = 2.8
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
Please respond quickly
Answers
Answer:
B. X
Step-by-step explanation:
Each X value can only have one Y value.
2x - (3-x) > x+1 solve
Answers
Answer:
x > 2
Step-by-step explanation:
Step 1: Write inequality
2x - (3 - x) > x + 1
Step 2: Solve for x
Distribute negative: 2x - 3 + x > x + 1Combine like terms: 3x - 3 > x + 1Subtract x on both sides: 2x - 3 > 1Add 3 to both sides: 2x > 4Divide both sides by 2: x > 2Here we see that any value x greater than 2 would work as a solution.
What is the first step needed to solve (3/4) times -3=-18
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Solve for the letter A
Answers
Answer:
a=bcd
Step-by-step explanation:
Answer:
a=bcd
Step-by-step explanation:
Let's solve for a.
a
dc
=b
Step 1: Multiply both sides by cd.
a=bcd
Answer:
a=bcd