Answer:
7
Step-by-step explanation:
assign the amount of weeks to x. then we write the equation 160+3x=195-2x which is 7
The equation that can be used to find the number of weeks it will take them to weigh the same amount is 160 + 3w = 195 - 2w , and it will take them 7 weeks to weigh the same amount.
Determining the equation and time for the weight to be equalLet's take w as the weight,
Nick's weight after w weeks: 160 + 3w
Adam's weight after w weeks: 195 - 2w
Since they will weigh the same after w weeks, you can set up the equation:
160 + 3w = 195 - 2w
Now, solve for w:
Combine like terms:
3w + 2w = 195 - 160
5w = 35
Divide both sides by 5 to isolate w:
w = 35 / 5
w = 7
So, it will take them 7 weeks to weigh the same amount.
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For inequalities. Greater Than, >, and Less Than, <, mean the solution does NOT contain the number. So would you use and open circle or a closed circle to graph on a number line ___________________ For inequalities. Greater Than or Equal TO, >, and Less Than or Equal TO, <, mean the solution does contain the number. So would you use and open circle or a closed circle to graph on a number line?____________________
17.
Graph the function f(g)=|g−2|+5 . What is the range of this function?
A g≥5
B g≥2
C g≤5
D g≥−5
The correct answer is A) g≥5
This is because when you look at an absolute value function, the constant at the end is the y value of the vertex. Since it is an absolute value equation, we know that the values can only go up. Therefore, it must be greater than or equal to the constant at the end (5)
estimate the product by rounding 5 times 5,503
27,515 is the actual answer.
Estimated, it is about 27,500
Hope I helped!
If f(x) varies directly with x and f(x)=40 when x=8, find the value of f(x) when x=2.
A. 2
B. 5
C. 10
D. 15
f(x)=40
x=8
so if x=2 it would be 40/8 which is 5
C
since the quantities vary directly then
x = kf(x) ( where k is the constant of variation )
to find k use the given condition , f(x) = 40 when x = 2
k = [tex]\frac{x}{f(x)}[/tex] = [tex]\frac{8}{40}[/tex] = [tex]\frac{1}{5}[/tex]
thus x = [tex]\frac{1}{5}[/tex]f(x)
when x = 2
f(x) = [tex]\frac{x}{k}[/tex] = [tex]\frac{2}{\frac{1}{5} }[/tex] = 10
What expression is equivalent to 18 1/5 - (-22 2/5) - (-40 1/5)
4 1/5 divided by 2/3 express your answer as a mixed number in Simplest form
4 (1/5 ) = 21/5
21 / 5 divided by 2 / 3 equals
21 / 5 * 3 / 2 equals 63 / 10 equals
6 (3 / 10)
Pls help I don’t under stand this
Hello Queengirl0
Past tense:
Melissa has a full chocolate bar 8/8
At lunch:
Melissa ate 2/8 of the candy bar, 8/8 - 2/8 = 6/8
After school:
Melissa ate 3/8 of the candy bar, 6/8 - 3/8 = 3/8
Melissa has 3/8 of a chocolate bar left
:)
algedratic expression for word phrase the quotient of y and 6
we are given
the quotient of y and 6
we always start from left to right order of operation
we know that
quotient means division
so, we can write as
the quotient of y and 6 is
[tex]\frac{y}{6}[/tex]...............Answer
Which is a true statement comparing the graphs of x^2/3^2 - y^2/4^2= 1 and y^2/3^2 - x^2/4^2 = 1?
The foci of both graphs are the same points.
The lengths of both transverse axes are the same.
The directrices of = 1 are horizontal while the directrices of = 1 are vertical.
The vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.
Answer: B) The lengths of both transverse axes are the same.
Step-by-step explanation: Given Hyperbola equations :
[tex]\frac{x^2}{3^2}-\frac{y^2}{4^2}=1[/tex] and
[tex]\frac{y^2}{3^2}-\frac{x^2}{4^2}=1[/tex]
First one : [tex]\frac{x^2}{3^2}-\frac{y^2}{4^2}=1[/tex] is a Horizontal Hyperbola.
a = 3 and 2a = 6.
Length of transverse axis = 6.
And second one : [tex]\frac{y^2}{3^2}-\frac{x^2}{4^2}=1[/tex] is a Vertical Hyperbola.
b=3 and 2b = 6
Length of transverse axis = 6.
The lengths of both transverse axes are the same.
Therefore, correct option is B option :
The lengths of both transverse axes are the same.Answer:
B
Step-by-step explanation:
a student found the product of 8 x 10 to the 6 power + 5 x 10 to the 9th power to be 4 x 10 to 15 power what is the error
8*10^6+5*10^9 should be
5,008,000,000
Answer:
The error student make is he multiply the terms instead of addition.
Step-by-step explanation:
Given : A student found the product of 8 × 10 to the 6 power + 5 × 10 to the 9th power to be 4 × 10 to 15 power.
To find : What is the error ?
Solution :
8 × 10 to the 6 power - [tex]8\times 10^6[/tex]
5 × 10 to the 9th power - [tex]5\times 10^9[/tex]
4 × 10 to 15 power - [tex]4\times 10^{15}[/tex]
According to student, [tex]8\times 10^6+5\times 10^9=4\times 10^{15}[/tex]
We solve the expression,
[tex]=8\times 10^6+5\times 10^9[/tex]
[tex]=8\times 10^6+5000\times 10^6[/tex]
[tex]=10^6(8+5000)[/tex]
[tex]=5008\times 10^6[/tex]
The error student make is he multiply the terms instead of addition.
in a triangle, if the second angle is 2 times the first angle and the third angle is 3 times the first angle,find the angles of the triangle.
a + b + c = 180
b = 2a
c = 3a
a + 2a + 3a = 180
6a = 180
a = 30
b = 2(30)
b = 60
c = 3(30)
c = 90
Answer:
a = 30
b = 60
c = 90
True or False: The following relation is a function. {(−5,−7),(0,4),(−5,3),(9,4)}
the answer is that it is false
Twelve less than the quotient of a number and 7 is -2
(x/7)-12=-2
Add 12 to both sides.
x/7=10
Multiply both sides by 7.
x=70
Final answer: 70
hope this helps :)
Lilliana’s hair was originally 48 inches long. She asked her hair dresser to cut 2/3 of her hair off. How long was her hair after her haircut.
Lilliana's hair was 48 inches long and she cut off 2/3 of it. After calculating 2/3 of 48, which is 32 inches, we subtract this from the original length. Lilliana's hair was 16 inches long after her haircut.
The student's question concerns the length of Lilliana's hair after she has asked her hairdresser to cut 2/3 of it off. If we know that Lilliana's hair was originally 48 inches long, we need to calculate 2/3 of this length and then subtract it from the original length to find the new length of her hair after the haircut.
Calculate 2/3 of 48 inches: (2/3) times 48 = 32 inches.
Subtract the amount cut from the original length: 48 inches - 32 inches = 16 inches.
Therefore, after Lilliana's haircut, her hair was 16 inches long.
I need help!
Simplifying radical expressions
1)
[tex] \sqrt[3]{135} [/tex]
2)
[tex] - 5 {}^{3} \sqrt{40} [/tex]
3)
[tex] {2}^{3} \sqrt{5} \times {4}^{3} \sqrt{8} [/tex]
Here is the solution...
1) [tex]\sqrt[3]{135} \\[/tex]
Solution
We can rewrite [tex]\sqrt[3]{135} = \sqrt[3]{27} *\sqrt[3]{5}[/tex]
Here, [tex]\sqrt[3]{27} = 3[/tex]
Now substitute the value, we get
[tex]\sqrt[3]{135} = 3 \sqrt[3]{5}[/tex]
The answer is [tex]3\sqrt[3]{5}[/tex]
2) [tex]-5\sqrt[3]{40}
Solution
[tex]-5\sqrt[3]{40} = -5\sqrt[3]{8} *\sqrt[3]{5}[/tex]
Here [tex]\sqrt[3]{8} = \sqrt[3]{2^{3} } = 2\\[/tex]
Therefore, we get [tex]-5*2\sqrt[3]{5} = -10 \sqrt[3]{5}[/tex]
The answer is-10 \sqrt[3]{5}[/tex]
2) [tex]2\sqrt[3]{5} * 4\sqrt[3]{8}[/tex]
Solution
[tex]\sqrt[3]{8} = 2[/tex]
Now plug in the above in the given expression, we get
[tex]2\sqrt[3]{5} * 4*2 = 16\sqrt[3]{5}[/tex] {2*4*2 = 16]
The answer is [tex]16\sqrt[3]{5}[/tex]
step by step what is 4 (x - 1) -3 (x + 2)
Answer:
For this expression, you will have to use the distribution property to get your answer.
First, distribute the 4 to the x and -1
[tex]4(x)=4x[/tex]
[tex]4(-1)=-4[/tex]
[tex]4x-4-3(x+2)[/tex]
Now do the same with the -3, x and 2
[tex]-3(x)=-3x[/tex]
[tex]-3(2)=-6[/tex]
[tex]4x-4-3x-6[/tex]
Now combine like terms to get your final answer
[tex]4x-3x=x[/tex]
[tex]-4-6=-10[/tex]
Thus, your solution is: x - 10
Step one: 4(x-1)-3(x+2)=0 (set equal to zero)
Step two: 4x-4-3x-6=0 (multiply numbers on the outside to inside of "( )")
Step three: x-10=0 (combine like terms)
Step four: 0+10=10, x=10 (inverse operation)
Answer: x=10
I WILL GIVE BRAINLIEST!!! EASY POINTS
Drag an answer to each box to complete this paragraph proof.
Given: Triangle PQR with m∠P=(x)° , m∠Q=(3x)° , and m∠R=(5x)° .
Prove: x = 20
The answer for the first one is (x)°+(3x)°+(5x)°=180° and the answer for the second one is x=20. If you need me to explain how they got the answer, i'm here.
Answer:
Fill the blanks
1) (x)°+(3x)°+(5x)°=180°
2) x°=20°
Step-by-step explanation:
Consider the provided information.
Given: Triangle PQR with m∠P=(x)°, m∠Q=(3x)°, and m∠R=(5x)°.
We need to prove that x = 20
Consider the provided figure.
By the triangle sum theorem the sum of the angles in a triangle is equal to 180. Therefore using the give and triangle sum theorem,
m∠P+m∠Q+m∠R=180°
Now use substitution property.
(x)°+(3x)°+(5x)°=180°
Simplify the equation gets
9x°=180°
Finally, using the division property of equality.
9x°/9=180°/9
x°=20°
Hence proved
a number d minus 2 is less than -1 ?
d - 2 < -1 is how this inequality would be displayed.
However, we can solve for the value of d by treating this like a standard algebraic equation.
d - 2 < -1
Add 2 to both sides.
d < 1
The value of d is less than 1.
Let me know if you have any other questions.
Answer:
Given phrase,
a number d minus 2 is less than -1
∵ '-' is the sign of minus,
⇒ d minus 2 = d - 2
Also, '<' is the sign of less than,
⇒ d minus 2 is less than -1 = d - 2 < - 1
Hence, the required inequality would be,
[tex]d-2 < -1[/tex]
Now, by further solving,
Add 2 on the both sides of inequality ( additive property of inequality )
[tex]d < -1 + 2\implies d < 1[/tex]
⇒ d ∈ ( -∞, 1 )
A coffee bean processor can dry 4,815 pounds of coffee beans in 3 hours. Which unit rate correctly reflects the speed of the processor?
A. 1,926 pounds/hour
B. 2,408 pounds/hour
C. 10.13 pounds/minute
D. 26.75 pounds/minute
Answer:
D. 26.75 pounds/minute
Step-by-step explanation:
For calculate unit rate that reflects the speed of the processor we can use the following equation:
[tex]Speed = \frac{Total Pounds}{RequiredTime}[/tex]
Taking into account that the answers are in pounds per hour and pounds per minute, we re going to calculate the speeds in booth units.
1. Speed in Pounds per hours: Replacing Total Pounds by 4,815 and Required time by 3 hours, we get:
[tex]Speed = \frac{4,815Pounds}{3 Hours}=1,605 Pounds/hour[/tex]
2. Speed in Pounds per minute: Every hour have 60 minutes, the 3 hours have 180 minutes, so replacing Total Pounds by 4,815 and Required time by 180 minutes, we get:
[tex]Speed = \frac{4,815Pounds}{180 Hours}=26.75 Pounds/hour[/tex]
So, chosen the rate that appear in the answers, we can say that the correct answer is D. 26.75 pounds/hours.
Convert decimal to fraction: .0167
We are to convert 0.0167 to fraction.
Trick 1: Count the number of decimal values in our number which is 4.
Trick 2: Write 1 followed by 4 zeros (the four you counted to above). This gives 10000 which is our denominator.
Trick 3: Retrieve our denominator by writing down the whole number which can be observed in 0.0167. That whole number is 167.
Trick 4: Now put your results in the fraction form. That is in numerator/denominator form.
This gives 167/10000
Trick 5: Try to simplify further. You can't! So the answer is:
[tex]\frac{167}{10000}[/tex]
I need help with 23 please!!!
Answer:
28 questions
Step-by-step explanation:
In the first 10 mins she answered 2/5 of 40 which is 16. The remaining amount is 24 questions and half of that is 12. So she answered 12 questions in 15 mins. Finally you add them to get 28 questions in 25 minutes.
What is the answer
A.
B.
C.
D.
E.
option A IS correct option.
Antoni has read 147 pages of a book.He has completed 70% of the book.How many more pages does he need to read to finish the book
i have 500 pennies. If I spend 6 pennies a day until i can no longer do so, at the end of one of these days i will have exactly how many pennies left?
A) 6
B)8
C)10
D)12
A) is 164 because 6 times 6 is 36. 500 - 36 is 164
The figure below shows rectangle ABCD:
The following two-column proof with missing statement proves that the diagonals of the rectangle bisect each other:
Which statement can be used to fill in the blank space?
(A) ∠ABD ≅ ∠DBC
(B) ∠CAD ≅ ∠ACB
(C) ∠BDA ≅ ∠BDC
(D) ∠CAB ≅ ∠ACB
B would be the answer because if you were to search up a picture of alternate interior angles, it would be the same as <CAD and <ACB
Answer:
(B) ∠CAD≅∠ACB
Step-by-step explanation:
Given in the question quadrilateral ABCD is a rectangle and a table of two-column proof with missing statement for proves that the diagonals of the rectangle bisect each other.
If we want to prove that the diagonals bisects to each other, then for this first we will prove that ΔADE≅ΔCBE. But given in the two-column proof
∠ADB≅∠CBE , side BC= side AD . ∠CAD ≅ACD must be necessary for to prove that ΔADE≅ΔCBE (ASA postulate). Hence statement ∠CAD ≅ACD can be used to fill in the blank space.
A plane traveled 1176 miles to Phoenix and back. The trip there was with the wind. It took 14 hours. The trip back was into the wind. The trip back took 28 hours. What is the speed of the plane in still air? What is the speed of the wind?
The plane travels at 60 mph and the wind is blowing at 20 mph.
By setting up and solving a system of equations, we find that the speed of the plane in still air is 63 mph and the speed of the wind is 21 mph.
Explanation:To answer this question, you first need to set up equations to represent the speed of the plane and the speed of the wind. You can denote the speed of the plane in still air as 'p' and the speed of the wind as 'w'. The plane's speed with the wind (going to Phoenix) is represented by p+w and against the wind (coming back) is p-w.
For the trip to Phoenix, you know that distance = speed * time. That gives us the equation 1176 = 14(p+w). After simplification, we obtain the equation, p+w = 84.
For the return flight, our equation is 1176 = 28(p-w). On simplification, we find the equation p-w = 42.
Now you have a system of equations that you can solve: p+w = 84p-w = 42. Solving these equations together, you find that the speed of the plane (p) in still air is 63 mph, and the speed of the wind (w) is 21 mph.
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Complete the proof showing that DE is parallel to AC
Answer: The statement is [tex]\frac{AD}{DB} +1=\frac{CE}{EB}+1[/tex] and the reason is add 1 both sides.
Explanation:
The given equation is [tex]\frac{AD}{DB} =\frac{CE}{EB}[/tex].
We know that according to the addition property the equation x=y and x+c=y+c are equivalent equations, where c is a constant.
So we can add 1 both sides in the given equation.
[tex]\frac{AD}{DB} +1=\frac{CE}{EB}+1[/tex]
Now we can take LCM and we get,
[tex]\frac{AD+DB}{DB} =\frac{CE+EB}{EB}[/tex]
The above step is the third step of the given proof. By follow the given steps we can prove that DE is parallel to AC.
Therefore, the missing step is addition of 1 on both the sides of the given equation.
To prove that DE is parallel to AC, we need to show that the lines DE and AC have the same slope. By rearranging the given equations to isolate the currents I₁, I₂, and I₃, and then setting these expressions equal to each other, we can determine the relationship between the currents and thereby the slopes of DE and AC.
Explanation:To prove that DE is parallel to AC, we need to show that the lines DE and AC have the same slope. The given equations 1₁ - 12 - 13 = 0, I₁ R₁ + I₂ R₂ = V₁, and I₂ R₂ − I₃ (R₃ + R₄) = V₂ can be rearranged to isolate the currents I₁, I₂, and I₃ in terms of voltage and resistance. By setting these expressions equal to each other, we can determine the relationship between the currents and thereby the slopes of DE and AC.
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Can anyone help me please?? I’m so stuck
∠DAB and ∠BAD form a linear pair, so ∠DAB + ∠BAD = 180°
116° + ∠BAD = 180° substituted
∠BAD = 64° subtracted 116° from both sides
ΔABC
∠A + ∠B + ∠C = 180° triangle angle sum theorem
64° + x + 60° = 180° substitution
x + 124° = 180° added like terms
x = 56° subtraction property
Answer: 56°
What is the area of polygon IJKL?
A.
120 square units
B.
125 square units
C.
130 square units
D.
140 square units
E.
150 square units
ANSWER
The correct answer is E
EXPLANATION
Polygon IJKL is a rectangle.
The area is given by;
[tex]Area=l\times w[/tex]
The coordinates of I are [tex](5,8)[/tex] and L[tex](-5,8)[/tex].
This is a horizontal line so it will be faster using the absolute value method rather than the distance formula
The length is
[tex]|IL|=|5--5|[/tex]
[tex]|IL|=|5+5|[/tex]
[tex]|IL|=|10|[/tex]
[tex]|IL|=10[/tex]
units
The coordinates of K are [tex](-5,-7)[/tex] and L[tex](-5,8)[/tex].
The width is
[tex]|LK|=|8--7|[/tex]
[tex]|LK|=|8+7|[/tex]
[tex]|LK|=|15|[/tex]
[tex]|LK|=15[/tex]
units
Therefore
[tex]Area=10\times 15[/tex]
[tex]Area=150[/tex] square units
The coordinates of K are [tex](-5,-7)[/tex] and L[tex](-5,8)[/tex].
Answer:
The correct answer option is E. 150 square units.
Step-by-step explanation:
A polygon is figure with at least 3 straight or definite sides or typically 5 or more straight sides.
Here the polygon we are given is a rectangle.
We know that,
Area of a rectangle = l x w
so we need to measure the length and width of the rectangle to find its area.
If we look closely, we can see the length of the rectangle above the x-axis is 8 units and the length below the x-axis 7 units which makes a total og 15 units.
While the width is 10 units (5 units on each side of the y-axis).
Area of the rectangle = 15 x 10 = 150 square units.
Therefore, the area of the polygon is 150 square units.
Let g be the function given by g(x)=-3x^2-2x+3 evaluate g(-2)
g(x) = -3x² - 2x + 3
g(-2) = -3(-2)² - 2(-2) + 3
g(-2) = -12 + 4 + 3 = -5