Answer:
$346
Step-by-step explanation:
Babysitting = $250
($10 × 25 hrs)
Neighbour's Chores = $96
($8 x 12 hrs)
Total Earning = $346
($250 + $96)
5|4w-1|=5w+40
Solve for x
Answer:
w1= -1.4, w2= 3
Step-by-step explanation:
I will assume that "x" is a w since there is no x within the question
Solution
w
1
=−
5
7
,w
2
=3
Alternative Form
w
1
=−1.4,w
2
=3
Evaluate
5×∣4w−1∣=5w+40
Simplify
5∣4w−1∣=5w+40
Rewrite the expression
5∣4w−1∣−5w−40=0
Separate the equation into 2 possible cases
5(4w−1)−5w−40=0,4w−1≥0
5(−(4w−1))−5w−40=0,4w−1<0
Evaluate
w=3,4w−1≥0
5(−(4w−1))−5w−40=0,4w−1<0
Evaluate
w=3,w≥
4
1
5(−(4w−1))−5w−40=0,4w−1<0
Evaluate
w=3,w≥
4
1
w=−
5
7
,4w−1<0
Evaluate
w=3,w≥
4
1
w=−
5
7
,w<
4
1
Find the intersection
w=3
w=−
5
7
,w<
4
1
Find the intersection
w=3 w=− 57
Solution
w
1
=−
5
7
,w
2
=3
Alternative Form
w 1=−1.4,w 2
=3
What is 70,951 rounded to the nearest hundred?
Answer:
70,951 rounded to the nearest hundred is 71,000.
Step-by-step explanation:
At a point on the ground 70 ft from the base of a tree, the distance to the top of the tree is 2 ft more than 3 times the height of the tree. Find the height of the tree.
The height of the tree is 2.22 feet so that the point on the ground is 70 ft from the base of a tree
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let h represent the height of the tree. Hence the distance to the top of tree = 3h + 2.
Using Pythagoras theorem:
(3h + 2)² = h² + 70²
9h² + 12h + 4 = h² + 70²
8h² + 12h - 66 = 0
h = 2.22 feet
The height of the tree is 2.22 feet so that the point on the ground is 70 ft from the base of a tree
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Which student walked at the fastest rate down the hallway?
6th grader: Walked 120 feet in
15 seconds
7th grader:walked 100 feet in 10 seconds
8th grader: Walked 180 feet in 20 secs
Answer:
8th grader
Step-by-step explanation:
They walked the the fastest since they walked 50 feet more than the 6th grader in 5 more seconds ( im sorry if you dont understand! i tried my best explaining it! hope this helps :) )
Use an algebraic equation to find the measures of the two angles described below. Begin by letting x represent the degree measure of the angle's supplement.
The measure of the angle is two times greater than its supplement.
Can someone help please
The supplementary angles are 60 degrees and 120 degrees
What are supplementary angles?Two angles are said to be supplementary when their measure add up to 180 degrees.
Therefore, if x and y are supplementary angles,
x + y = 180
x represent the degree measure of the angle's supplement.
The measure of the angle is two times greater than its supplement.
Therefore, the algebraic expression of the angles is as follows:
x + 2x = 180
3x = 180
divide both sides by 3
3x / 3 = 180 / 3
x = 60
Therefore, the supplementary angles are 60 degrees and 120 degrees.
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Use your results from Exercise 13 to determine whether the given measures define 0,1, 2, or infinitely many obtuse triangles. Justify your answers.
a=15, b=15, m
When you are given two sides but no measurement of the angle, such as a = 15 and b = 15, we can create an infinite number of triangles.
For instance:
How many different triangles can be made if we have side lengths of 15 and 15 and an angle value of 0 to 360 degrees?
Using a protractor, make one of the triangles with sides of 25 metres and 21 metres, an angle of 12 degrees, and a third side that can be changed to your preferred length. You've constructed a triangle.
Similar to this, we can create a completely different triangle by varying the third side's length and angle measurement.
It's crucial to remember that you select the side lengths and angle. This implies that you might choose differently. You may create an infinite number of distinct triangles by using the same angles.
As a result, we can make an infinite number of triangles using just one angle and one side length.
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If -2+x=-6 , then -17-x= ?
A. -13
B. -4
C. 9
D. 13
E. 21
The value of -17-x is A. -13.
We are given the expression. To find the result, we need to solve the first expression. This will give the value of x. Further, we will be using the value of x to find the value of another expression.
-2 + x = -6
Shifting the value of -2 to the Right Hand Side of the equation
x = -6 + 2
Performing subtraction on Right Hand Side of the equation
x = -4
Now, keeping the value of x in second expression -
Value = -17 -(-4)
As there are two negative signs, the number 4 will be represented with positive sign
Value = -17 +4
Performing subtraction
Value = -13
Hence, the value of expression is A. -13.
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Find the slope of the line from the pair of points (1, -4) , (-5, 3)
A. 1/4
B. -6/7
C. -7/6
D. 7/6
Answer:
B
Step-by-step explanation:
The rise is +7, and the run is -6
so, -6, +7
Melissa reserves another rectangular patch in her vegetable garden for growing bell peppers. Since the space that she can reserve for a rectangular bell pepper patch depends on how large she makes the tomato patch, she uses function p to represent the area of the bell pepper patch, where x is the length of the tomato patch. Select the correct answer from each drop-down menu.
The correct answer from each drop-down menu is as follows:
The function p is a quadratic function.When the length of the tomato patch is 8 feet, the area of the bell pepper patch is equal to 16 square feet.The maximum possible area of the bell pepper patch is 18 square feet when the length of the tomato patch is 6 feet.What is a quadratic function?A quadratic function can be defined as a mathematical expression that can be used to define and represent the relationship that exists between two or more variable on a graph.
In Mathematics, the graph of any quadratic function is parabolic because it is a u-shaped curve. For the given quadratic function, the graph is a downward parabola because the coefficient of x² is negative.
Therefore, function p is a quadratic function.
When the length of the tomato patch is 8 feet, the area of the bell pepper patch is given by:
p(x) = -0.5x² + 6x
p(8) = -0.5(8)² + 6(8)
p(8) = -0.5(64) + 48
p(8) = -32 + 48
p(8) = 16 square feet.
From the graph, we can logically deduce that the maximum possible area occurred at x = 6 feet. Thus, maximum possible area is given by:
p(x) = -0.5x² + 6x
p(6) = -0.5(6)² + 6(6)
p(6) = -18 + 36
p(6) = 18 square feet.
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Pls hurry and help me pls * If M/TUW=m/VUW=62*,TW=s+56and VW=3s,what is the value of s?
The value of s in the given figure is 28
How to determine the value of s?The given parameters are:
m<TUW = m<VUW =62 degrees
TW = s + 56 and VW= 3s
From the figure, we have the following congruent equation
TW = VW
This means that
s + 56 = 3s
Evaluate the like terms
So, we have
2s = 56
Divide both sides of the equation by 2
So, we have:
s = 28
Hence, the value of s in the given figure is 28
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Solve each system by elimination.
9a - 3d = 3 , -3a + d = -1
By elimination, the system of equations, 9a - 3d = 3 and -3a + d = -1, has infinite solutions.
A system of equations is a set of two or more equations which includes common variables. To solve system of equations, we must find the value of the unknown variables used in the equations that must satisfy all the equations.
There are three methods that can be used to solve system of equations.
1. Elimination
2. Substitution
3. Graphing
Using the elimination method, given two equations in a and d, a variable should be eliminated by adding/subtracting the two equations.
Simplifying the first equation by dividing it by -3,
9a - 3d = 3 ⇒ -3a + d = -1 (equation 1)
-3a + d = -1 (equation 2)
Since the simplified equation of the first equation is the same as the second equation, then the two lines are exactly the same or overlapping.
Hence, the system of equations has infinite solutions.
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What is the value of 5(2x − 4) − 2y if x = −2 and y = 6?
−52
−48
−92
28
Answer:
-52
Step-by-step explanation:
fill in the x and y values and multiple it and then combine it
List at least one advantage and one disadvantage of using panels to gather data.
Solve inequality.
If all real-number values of x are solutions of the inequality, write TRUE.
If no real-number values of x are solutions of the inequality, write FALSE.
2(n-3) -13 + 2n
Answer: False
Step-by-step explanation:
Because The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
A water cooler can hold 50 pt of water.
About how many liters of water can it hold?
1 Litter equals about 1.06 pt
A. 23.6 L
B. 26.5 L
C. 94.3 L
D. 106.0 L
Answer:
The water cooler can hold approximately 23,6L
Eli wants to buy a wedding cake. The original price is $80. What is the sale price?
The sale price is $80.
Here the original price is $80.
there is no any valid data to find sale price so sale price should be$80
Profit and loss are expressions used to determine whether or not a sale is economic. In our diurnal lives, we use these expressions frequently. However, the difference between the two is appertained to as profit, If the selling price is advanced than the cost price. However, the difference is appertained to as the loss, If the selling price is lower than the cost price. The cost price of a product is the price at which it's bought. The selling price of a thing is the price at which it's vended. In this essay, we will study further about profit and loss.
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can someone help me solve for x? 2x-9=3x-1
Answer: x=−8
Evaluate
2x−9=3x−1
Move the variable to the left side
2x−9−3x=−1
Subtract the terms
−x−9=−1
Move the constant to the right side
−x=−1+9
Add the terms
−x=8
Divide both sides
−1
−x
=
−1
8
Simplify
−1
−x =
−8
Solution
x=−8
Step-by-step explanation:
Hey!
2x-9=3x-1
Lets put the x on 1 side
2x 2x
- 2x -9= 3x-1
-9= x -1
-1 -1
-8 = x
X = -8 is your answer
Hope this helps!
A recipe for custard sauce calls for 6 egg yolks, (2/3) cup of sugar, and 1(1/2) cups of hot milk, Chelsea needs more, sauce than the recipe yields. She plans to use 1 cup of sugar. How many cups of hot milk should she use?
9/4 cups of hot milk will be used by Chelsea.
As per the given information in question about custard, we know -
For 2/3 cups of sugar, the cups of hot milk required = 1(1/2)
Converting the number of cups of hot milk from mixed fraction to improper fraction -
Number of cups = (2×1 + 1)/2
Number of cups= (2 + 1)/2
Number of cups = 3/2
So, for 1 cup of sugar, the cups of hot milk required will be = (3/2) ÷ (2/3) × 1
Number of cups of hot milk required = (3×3) ÷ (2×2)
Number of cups of hot milk required = 9/4
Hence, for 1 cup of sugar 9/4 cups of hot milk will be used by Chelsea.
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1. Noah and Lin buy a 12-cup bag of sugar and divide it evenly to make their
recipes. If they each use all their sugar, how much flour do they each need?
Noah and Lin each need 6 cups of sugar
How to calculate the amount of sugar needed ?Noah and Lin buy 12 cup bag of sugar and divide it evenly to make their recipe
If the entire sugar is consumed, the number of flour required by each person can be calculated by dividing 12 by 2
= 12/2
= 6
Hence each person will need 6 cups of flour for the recipe
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Record your answers on the answer sheet provided by your teacher or on a sheet of paper.
Suppose the length of one diagonal of a kite is three times the length of the other diagonal. If the area of the kite is 96 square inches, what are the lengths of the diagonals? Show your work.
The lengths of the diagonals are 8 and 24
Area of kite :
Area of kite is the space enclosed by a kite. A kite is a quadrilateral in which two pairs of adjacent sides are equal. The elements of a kite are its 4 angles, its 4 sides , and 2 diagonals.
In the given statement is :
Suppose the length of one diagonal of a kite is three times the length of the other diagonal. If the area of the kite is 96 square inches.
And, to find the lengths of the diagonals.
Now, Area of the kite is 96 sq. inches.
The length of one diagonal of a kite is x
and, other diagonal is three times to other diagonal
So, d2 = 3x
The area of a kite = 1/2 x (d1) x (d2)
96 = 1/2 × x × 3x
96 = [tex]\frac{3x^{2} }{2}[/tex]
192 = [tex]3x^{2}[/tex]
64 = x^2
x = [tex]\sqrt{64}[/tex]
x = 8
Therefore, The length of one diagonal is 8
and, other length of diagonal is 3x = 3x 8 = 24
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A Canadian goose migrated at a steady rate of 4 miles every 7 minutes.
Part 1 out of 3
Fill in the table to describe the relationship.
Time (min)
Distance (mi)
✓ Check
-7
5
14
21
28
35
9
A Canadian geese moved 4 miles every 7 minutes, consistently.
Part 1 out of 3.
Distance: 4,8,12,16,20,24,28
Time: 7,14,21,28,35,42,49
Time is an interval of time that is hours and minutes after midnight or noon.
Distance is a distance between two objects or individuals.
Given that,
A Canadian geese moved 4 miles every 7 minutes, consistently.
Distance: 4,8,12,16,20,24,28
Time: 7,14,21,28,35,42,49
Therefore, the table is
Distance: 4,8,12,16,20,24,28
Time: 7,14,21,28,35,42,49
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How would I solve for this?
Answer:
1
Step-by-step explanation:
replace x with -7
f(-7) = 5 - (-7)
f(-7) = 5 + 7
f(-7) = 12
Visitors to a cinema are either adults, children or pensioners.
the ratio of children to adult visitors is 1:2.
the ratio of adults to pensioners is 3:4.
a stratified sample of 85 is to be taken from the cinema visitors.
how many pensioners should be in the sample?
The number of pensioners in the sample is 40.
Given,
Visitors to a cinema are either adults, children, or pensioners.
The ratio of children to adult visitors is 1:2.
The ratio of adults to pensioners is 3:4.
A stratified sample of 85 is to be taken from the cinema visitors.
We need to find out how many pensioners should be in the sample.
How do we find the number of items from a given ratio?Example:
Out of 10 pens, the ratio of the red and blue pens is a:b
The number of blue pens = [ b / (a + b) ] x 10
The number of red pens = [ a / (a + b) ] x 10
We have,
Total number of visitors = 85
children:adult = 1:2
adults:pensioners = 3:4
Here,
Let,
The number of children be C.
The number of adults be A.
Number of Pensioners be P.
Now,
1C : 2A
: 3A : 4P
3C : 6A : 8P
Now,
3C + 6A + 8P = 85
This means 8 is the ratio of pensioners.
= 8 / (3 + 6 + 8) x 85
= (8 / 17)x 85
= 8 x 5
= 40
Thus the number of pensioners in the sample is 40.
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Josh is building a kaleidoscope using PVC pipe, cardboard, bits of colored paper, and a 12 -inch square mirror tile. The mirror tile is to be cut into strips and arranged to form an open prism, with a base like that of an equilateral triangle. Make a sketch of the prism, giving its dimensions. Explain your reasoning.
A sketch of the required prism is as shown below.
In this question,
Josh is building a kaleidoscope using PVC pipe, cardboard, bits of colored paper, and a 12 -inch square mirror tile.
While making a kaleidoscope, the mirror tile is to be cut into strips and arranged to form an open prism, with a base like that of an equilateral triangle.
We need to make a sketch of the prism, giving its dimensions
As the base of the prism formed is an equilateral triangle, the mirror tile must be cut into three rectangular strips of equal width.
So, the width would be 12 ÷ 3 = 4 inches
The original tile is a 12-inch square, the length of each side of the square is 12 inches.
So the each rectangular strip will be 12 inches by 4 inches.
i.e., the length = 12 inches and width = 4 inches
Therefore, a sketch of the prism is as shown below.
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What is the value of 19 cubed? A: 22 B: 57 C: 361 D: 6,859
The value of 19 cubes is equal to 6859. The correct option is D.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the number is 19. The cube of 19 will be calculated as:-
19³ = 19 x 19 x 19
19³ = 6859
The cube of 19 is calculated by multiplying the number three times. Hence, the cube of 19 is 6859.
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If 1 x is 21 a and if 1 x is 19 b hovv much b is one a
Answer:1.052
Step-by-step explanation:
Write an equivalent expression for 5(2 + − 3) using the distributive property.
Answer:
5(2) + 5(-3)
Step-by-step explanation:
10 + -15 = -5
Find the slope of the line from the pair of points (1, 4) , (5,7)
A. 3/2
B. 3/4
C. 4/3
D. -3/4
Select all the points that are on the graph of the equation x+3y=12
Answer:
(1,3), (2,2), (3,1), (4,0), (-1,5), (-2,6), (-3,7), (-4,8), (-5,9), & (-6,10)
Step-by-step explanation:
First, solve to alter the equation into a slope form instead of in standard form.
x+3y=12
Because x represents the slope, we need to transfer it to the other side of the equation. By subtracting it, it'll allow the equation to only have 3y on the left side of the equation and x will become negative x which will be added on to the 12 on the right side.
x+3y=12
-x -x
+3y=-x+12
3y=-x+12
Next, you would divide the 3 underneath the y and the number 12 to allow the 3y to become y because y needs to be isolated in order for the slope intercept formula to work.
3y divided by 3 equals 3 and 12 divided by 3 is 4.
3y/3=-x+12/3
The final equation would look as follows:
y=-x+4
Hence, the y-intercept is 4 and the slope is -1.
You would then plot the origin coordinate of (0,4) and either go down one and right one or up one and left one; either way, you'll receive a negative slope looking like this: \
Some points on the graph would be: (1,3), (2,2), (3,1), (4,0), (-1,5), (-2,6), (-3,7)
Hope this helps.
Select the expressions that are equivalent to -5(-9f + 7) - 7.
-42f + 45
-9f-42
(-9f + 7)-5-7
45f - 42
Answer:
45f - 42
Step-by-step explanation:
-5(-9f + 7) - 7
Expand -5(-9f +7) = -5(-9f) + (-5)(7) = +45f -35 or simply 45f - 35
5(-9f + 7) - 7 becomes 45f - 35 - 7 = 45f - 42