Answer:
3 nickels and 7 dimes.
Step-by-step explanation:
Let +n+ = number of nickels
Let +d+ = number of dimes
-----------------------------
(1) +5n+%2B+10d+=+85+
(2) +d+=+n+%2B+4+
----------------------------
Substitute (2) into (1)
(1) +5n+%2B+10%2A%28+n+%2B+4+%29+=+85+
(1) +5n+%2B+10n+%2B+40+=+85+
(1) +15n+=+45+
(1) +n+=+3+
and
(2) +d+=+n+%2B+4+
(2) +d+=+3+%2B+4+
(2) +d+=+7+
---------------------
There are 3 nickels and 7 dimes
-------------------------------
check:
(1) +5n+%2B+10d+=+85+
(1) +5%2A3+%2B+10%2A7+=+85+
(1) +15+%2B+70+=+85+
(1) +85+%2B+85+
OK
S is between R and T. RS = 5x-6, RT =3x+2
and ST = 2x. Sketch the scenario, then
find X, RS and RT.
X=
RS=
RT=
Answer:
Step-by-step explanation: bnnnnnnnnnnnnnnm
QUESTION 6
Given: f(x) = 2x² + 4x + 5,
f(a) = ?
None of the above
f(a)=2a² +4a+5
f(a) = 2a + 9
f(a) = 6a + 5
QUESTION 7
Given the same function as in #6, find f(a+h)
2a²+2h²+4a+5
None of the above
2a²+2h²+4a+4h+5
2a²+4ah+2h²+4a+4h+5
Question 6
Step-by-step explanation:
the answer is f(a)=2a²+ 4a+5
Question 7
2a²+4ah+2h²+4a+4h+5
5. A population with mean = 37 and standard deviation = 6 is standardized so that the new mean is 50 and the new standard deviation is 10. A scale of 40 on the first scale is equivalent to what score on the new standardized scale?
Using z-scores, it is found that a scale of 40 on the first scale is equivalent to a score of 55 in the new standardized scale.
What are z-scores?The z-score of a measure X of a distribution with mean represented by [tex]\mu[/tex] and standard deviation represented by [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is above(in case the score is positive) or below(in case the score is negative) the mean. Looking at the z-score table, the p-value associated with the z-score is found, which represents the percentile of the measure X.For the first scale, the parameters are given as follows:
[tex]X = 40, \mu = 37, \sigma = 6[/tex]
Hence the z-score is:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
Z = (40 - 37)/6
Z = 0.5.
For the second scale, we want to find X when Z = 0.5, considering the following mean and standard deviation:
[tex]\mu = 50, \sigma = 10[/tex]
Hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
0.5 = (X - 50)/10
X - 50 = 5
X = 55.
A scale of 40 on the first scale is equivalent to a score of 55 in the new standardized scale.
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Pls answer report if wrong
Answer:
III
Step-by-step explanation:
It is expanded by an uneven scale factor.
38t-16t2
What is the height of the soccer ball 1.25 seconds after Callie kicks it?
Answer:
7.5
Step-by-step explanation:
38 times 1.25
minus 16 times 1.25
times 2
Use factoring to solve the polynomial equation:
x(x−2)=48
Greetings from Brasil...
We know that:
48 = 8 · 6
and 8 - 2 = 6, so
48 = 8 · 6 = 8 · (8 - 2)
then
X · (X - 2) = 48
X · (X - 2) = 8 · 6
X · (X - 2) = 8 · (8 - 2)We can conclude that
X = 8Tom has 25 gallons of gas and needs to fill it equally in 3 1/2 gallon containers. How many containers can he fill?
7.14 containers ≈7 containers are required to fill gallons containers equally for 25 gallons of gas
Given that Tom has 25 gallons of gas and needs to fill it equally in 3[tex]\frac{1}{2}[/tex] gallons containers and asked how many gallons containers are required to fill equally.
25 gallons gas are required too put in 3[tex]\frac{1}{2}[/tex] gallons containers.
As a result, Divide 25 with 3[tex]\frac{1}{2}[/tex] to get how many containers are required to fill equality.
⇒[tex]\frac{25}{3\frac{1}{2} }[/tex]
⇒[tex]\frac{50}{7}[/tex]
⇒7.14 gallons containers ≈7 gallons containers
Therefore,7.14 gallons containers ≈7 gallons containers are required to fill gallons containers equally for 25 gallons of gas
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Which choices are equivalent to the expression below check all that apply
Using exponential function, Correct answers are D and F. 8².8⁵ is equivalent to 8²⁺⁵, 8⁷
What is an exponential function?An exponential function is a mathematical function with the expression f (x) = ax. where x is a variable and an is a constant known as the function's base. The most common exponential-function base is the transcendental number e, or around 2.71828.
What traits do exponential functions possess?
When the base is bigger than 1, the exponential function has the following characteristics.
The point is traversed by the graph (0,1)The domain only contains true numbers.It is between y>0.The graph is going up.As x approaches negative infinity, the graph asymptotically approaches the x-axis.The value of 8².8⁵ is -
8²⁺⁵
8⁷,
Which is equivalent to 7 times 8.
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i need to find X i really dont feel like doing this
Answer:
x=80 degrees
Step-by-step explanation:
Since the angle is supplementary with the 100 degree angle, then the angles must equal 180 degrees.
[tex]180-100=80[/tex]
In Fairbanks the temperature went down 20 degrees in 6 hours
Answer: 3.3 hours
Step-by-step explanation:
Liam wants to buy raspberries and pears to make a fruit tart. Raspberries cost $2.50
per pound and pears cost $2.25 per pound. How much does he spend if he buys 3
ppunds of raspberries and 2 pounds of pears? How much does he spend if he buys a
pounds of raspberries and y pounds of pears?
He spends x pounds of Raspberries and y pounds of pears, then the equation can be 2.5x + 2.25 y
What is algebra?Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.
Given:
Raspberries cost $2.50 per pound
pears cost $2.25 per pound
so, she spends
=2.5 * 3 + 2.25 *2
=7.5+4.5
=$12
If he spends x pounds of Raspberries and y pounds of pears.
then the equation can be
2.5x + 2.25 y
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Determine the sign of your answer, then find the sum or difference. (-10)+1
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\textsf{Looks like you are finding the \boxed{sum} in this question you are \boxed{\rm{adding}} .}[/tex]
[tex]\large\textsf{Now, let us solve for your given equation.}[/tex]
[tex]\mathsf{(-}\large\textsf{10})\large\textsf{ + 1}\\\\\large\textsf{To find the given answer to this equation, you have to START at }\mathsf{-}\textsf{10 \&}\\\large\textsf{go UP 1 space to the right \& you have reached your answers.}\\\\\mathsf{(-}\large\textsf{10})\large\textsf{ + 1}\\\mathsf{= -}\large\textsf{10 + 1}\\\mathsf{= -\large\textsf{9}}\\\\\\\huge\textbf{Therefore, your answer should be:}\\\huge\boxed{\mathsf{-9}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
Pls answer I report if wrong
Answer:
3
Step-by-step explanation:
HELP WITH MATH INDUCTIVE OR DEDUCTIVE PLEASE
"Anyone who protrices a hocethorn will be dribbed. Steve was not
dribbed. Therefore, he did not protrice a hocethorn."
O Invalid. The inner circle is those who are dribbed, and the outer circle is those
who protrice a hocethorn.
O Valid. The inner circle is those who are dribbed, and the outer circle is those
who protrice a hocethorn.
O Invalid. The inner circle is those who protrice a hocethorn, and the outer
circle is those who are dribbed.
O Valid. The inner circle is those who protrice a hocethorn, and the outer circle
is those who are dribbed.
Answer: Choice D
Valid. The inner circle is those who protrice a hocethorn, and the outer circle is those who are dribbed.
=======================================================
Explanation:
Refer to the diagram below. It's a visual representation of what choice D is describing.
The "protrice a hocethorn" circle is denoted as "circle P" or simply "P" for short. While circle D refers to those who are dribbed.
If we throw a dart randomly at the inner circle, then we always will land in the outer circle. This is because the inner circle is completely contained within the outer circle. The inner circle is a subset of the outer circle.
If you land in circle P, then you land in circle D.
But Steve did not land in circle D (premise 2). This must mean he could not possibly have landed in circle P.
This is how we reach the conclusion that he did not protrice a hocethorn
For more information, check out the modus tollens rule. Some logic textbooks may refer to it as "denying the consequent".
----------------------------
Here's another example of modus tollens
Premise 1: "If it rains, then the grass gets wet"Premise 2: "The grass did not get wet"Conclusion: "Therefore, it did not rain"We can think of the events "it rains" and "the grass got wet" as two dominoes. If the second domino did not fall over, then there's no way the first one did. This is because first one topples the second.
Compare the value of the expressions
Answer:
#1 is 95220 #2 is 95160
Step-by-step explanation:
>
72/45 in simplest form
a bag of apples weighs 5.2 pounds and is on sale for $4.16. What is the price of one pound of apples?
The price of one pound is $0.8.
This problem can be solved by unitary method. To understand this we must know that in this method we need to calculate the value of a unit of product and then multiply that value with the required value for which we have to calculate the value.
Given, that the weight of the apple is 5.2 pounds.
Cost of the apple is = $4.16
Therefore the cost of one pound of apple = [tex]\frac{4.16}{5.2}[/tex]
= $0.8
So, to buy a pound of apple one must pay $0.8.
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The measure of the complement of an angle is double the
measure of the angle itself. Find the measures of both angles.
Answer: u need to send a pic of the angle
Step-by-step explanation:
Autumn has $.64 worth of pennies and nickels. She has a total of 20 pennies and nickels all together. Determine the number of pennies in the number of nickels that Autumn has.
The number of pennies and nickels are 9 and 11 respectively.
How to find the number of pennies and nickels?Autumn has $.64 worth of pennies and nickels. She has a total of 20 pennies and nickels all together.
Therefore,
let
x = number of pennies
y = number of nickels
Hence,
x + y = 20
0.01x + 0.05y = 0.64
Multiply equation(i) by 0.01
0.01x + 0.01y = 0.2
0.01x + 0.05y = 0.64
0.04y = 0.44
y = 0.44 / 0.04
y = 11
Therefore,
x = 20 - 11
x = 9
Therefore, the number of pennies and nickels are 9 and 11 respectively.
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Which of the following characteristics is not associated a general journal
The characteristics which is not associated a general journal is that transactions are ordered from greatest to smallest.
Given that four options which are as under:
1) Transactions are ordered from greatest to smallest,
2) It is used daily to record transactions,
3) Events are listed in chronological order,
4) The amount credited equals the amount debited.
We are required to choose the correct option which is not a characteristics of general journal.
A general journal is basically an initial record-keeping that records all the transactions except those recorded in a specialty journal like a cash journal, purchase journal, etc.
The option which is correct is option a which tells that transactions are ordered from greatest to smallest.
Hence the characteristics which is not associated a general journal is that transactions are ordered from greatest to smallest.
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Question is incomplete. It should include the following options:
1) Transactions are ordered from greatest to smallest,
2) It is used daily to record transactions,
3) Events are listed in chronological order,
4) The amount credited equals the amount debited.
What is the Question to 65+23
Answer:
88
This is just plus 2 digits number toghether
Answer:
88
Step-by-step explanation:
(65 + 23 = 88)
60+20=80
5+3=8
80+8=88
If f(x) = x−6x^2 find (f(x + h) − f(x))/h
The value of (f(x + h) − f(x))/h is 1 - 6h - 12x.
For any function, say f(x) = x + a, the value of f(x+b) = (x + b) + a or (x + b + a)
Here, we are given that
f(x) = x−6x^2
and we need to find the value of (f(x + h) − f(x))/h
Firstly,
f(x + h) = (x+h) - 6(x+h)^2
Now, f(x + h) − f(x) = (x+h) - 6(x+h)^2 - (x−6x^2)
= (x+h) - 6(x+h)^2 - x + 6x^2
= x - x + h - 6(x^2 + h^2 + 2xh) + 6x^2
= h - 6x^2 - 6h^2 - 12xh + 6x^2
= h - 6x^2 + 6x^2 - 6h^2 - 12xh
= h - 6h^2 - 12xh
= h( 1- 6h - 12x)
Thus, (f(x + h) − f(x))/h = [h( 1- 6h - 12x)] / h
= 1 - 6h - 12x
Therefore, the value of (f(x + h) − f(x))/h is 1 - 6h - 12x.
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Which graph represents the solution set for the inequality 1xs18?
O
O
O
O
01 2 3 4 5
6
7 8 9 10
0 6 12 18 24 30 36 42 48 54 60
0 1 2
+ + +
+
3
4
4 5 6 7 8 9 10
+
0 6 12 18 24 30 36 42 48 54 60
2
k
Answer: Graph D
The inequality solves to [tex]\text{x} \le 36[/tex]
=====================================================
Explanation:
The goal is to solve for x.
Multiply both sides by 2 to go from
[tex]\frac{1}{2}\text{x} \le 18[/tex]
to
[tex]\text{x} \le 36[/tex]
The inequality sign does not flip. It would only do so if you multiplied or divided both sides by a negative number.
The graph will have a closed filled in circle at 36, with shading to the left. This is to visually show the set of all x values that are 36 or smaller. The endpoint 36 is included in the solution set (an open hole would be used if you wanted to exclude it from the solution).
This describes Graph D
If ST = 5, TU = 2x, and SU = x + 9, what is SU? geometry
Answer:
Do like this:
Step-by-step explanation:
x+9=5+2x
and
2x-x=9-5
x=4
|2w + 12| = |4x|
Hvghvvhvgbvgh
Answer:
No solutions.
Step-by-step explanation:
[tex]\left|2w\left(x\right)+12\right|=\left|4x\right|[/tex]
[tex]x < 0,\:\:x\ge \:0 = No Solutions[/tex]
Raina drove 464 miles in 8 hours.
At the same rate, how long would it take her to drive 638 miles?
0 hours
X
S
If m∠QOS=51, m∠POR=59, and m∠POQ=25, what is m∠ROS?
Answer:
∠ROS = 19
Step-by-step explanation:
The angle sum theorem is applicable.
∠POQ + ∠QOR = ∠POR
∠QOR = ∠POR - ∠POQ . . . . . subtract ∠POQ
__
∠QOR +∠ROS = ∠QOS
∠ROS = ∠QOS - ∠QOR . . . . . subtract ∠QOR
∠ROS = ∠QOS - (∠POR - ∠POQ) . . . . . substitute for ∠QOR
∠ROS = ∠QOS - ∠POR + ∠POQ = 58 -61 +22
∠ROS = 19
Step-by-step explanation:
Pop es igual a 95 y ros es 55
You're making dessert but your recipe needs adjustment your peanut butter cookie recipe makes three dozen cookies but you need two dozen if the recipe requires 3/4 cup of vegetable oil 2 teaspoons of vanilla extract and one and one half cups of peanut butter how much of each of these ingredients are necessary for two dozen cookies
Answer: 2/4 cups of oil and 1.4 teaspoons and 1 cup of peanut butter
Step-by-step explanation: 3/4 take one out of it to make 2/4 since there are 2 dozen then to have 3 groups of 2 teaspoons it would be 0.7 but its an inf number so its 0.7 and then 1 cup of peanut butter because we are taking half of it away since you want 2 dozen.
What is the standard form for 4x10,000+8x1,000+2x100+3x10+6x1+7x1/10
choices
48,237.07
48,236.7
4,830.07
none of these
:)
Answer:
48,236.7
Step-by-step explanation:
40,000 + 8,000 + 200 + 30 + 6 + 7/10
7/10 can also be written .7
(3x + 5) + (x - 1) =90
Answer:
Step-by-step explanation:
x=
43/2
Answer:
[tex]x=\frac{43}{2}[/tex]
Step-by-step explanation:
[tex]Rule: \left(a\right)=a\\=3x+5+x-1=90\\3x+x+5-1=90\\3x+x=4x \rightarrow 4x+5-1=90\\5-1=4 \rightarrow 4x+4=90\\(-4)~4x+4-4=90-4\\4x=86\\(\div 4)~\frac{4x}{4}=\frac{86}{4}\\x=\frac{43}{2}[/tex]
