The solution to the given system of equations is x = 1, y = 1. That is, (1, 1)
From the question, we are to solve the given system of equations.
The given system of equations is
y = -2x + 3y ------------- (1)
y = 5x - 4 ------------- (2)
Substitute equation (2) into equation (1)
y = -2x + 3y
5x - 4 = -2x + 3(5x - 4)
5x - 4 = -2x + 15x - `12
Collect like terms
-4 + 12 = -2x + 15x - 5x
Simplify
8 = 8x
∴ x = 8/8
x = 1
Substitute the value of x into equation (2)
y = 5x - 4
y = 5(1) - 4
y = 5 - 4
y = 1
Hence, the solution to the given system of equations is x = 1, y = 1. That is, (1, 1)
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HELP ME ASAP PLSSS
Y = x*-0.25
Hope this helps.
Two of Ms. Cole's Earth science classes have 23 students each. Box plots for recent test scores for these two classes are
displayed.
Third Period
←++ ++ ++
45 50 55 60 65 70 75 80 85 90 95 100
Which statement about the scores is true?
▬
Fifth Period
1
+++
++
45 50 55 60 65 70 75 80 85 90 95 100
The option B , which says that the mean of the two data sets are equal is the correct statement.
To answer the question we need to understand the meaning of a boxplot
A boxplot is a standardized way of showing the distribution of data based on a five number summary minimum, first quartile (Q1), median, third quartile (Q3), and maximum.
According to the problem showed in question ,
As we can see from the two box plots that the mean for both the box plots is less than 80 but greater than 75.
Hence we can say that the mean of the two given data sets are equal
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If Z is the middle point of RT what is x? Don't round.
Answer:
x = 28.75
Step-by-step explanation:
RZ and RT will have the same length since Z is a midpoint
8x - 10 = 220
Add 10 to both sides
8x = 230
Divide both sides by 8
x = 28.75
-160=6x-8(5x+3) what is my answer
The answer to the expression -160=6x-8(5x+3) is x = 4.
What is an expression?An expression is written in the form of variables and constants combined with arithmetic operations. There are many types of expressions in mathematics they are algebraic expressions, logarithmic expressions, trigonometric expressions, and many more.
The given expression - 160 = 6x - 8(5x+3) can be writen as,
6x - 8(5x+3) = -160.
First, we will distribute what is inside the brackets.
∴ 6x - 40x - 24 = -160.
-34x = -160 + 24.
-34x = -136.
34x = 136.
x = 136/34.
x = 4.
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How much can 4 go into 150
Answer:
37.5
Step-by-step explanation:
37.5
4 | 150.0
- 12 ↓
---------------
30.0
- 28 ↓
-----------------
20
- 20
--------------------
0
I hope this helps!
WILL GIVE BRAINLEST!!!
Which shows the best use of the associative and commutative properties to make simplifying [tex]\frac{1}{6} -8+3- \frac{5}{6} +9[/tex] easier?
A. (1/6 - 5/6) + [3+9+ (-8)]
B. (3 +1/6) + [9+(-8)+(-5/6)]
C. [1/6 + (-8)] + [3+(-5/6) +9]
D. [3 +9 + 1/6] + [ - 5/6 + (-8)]
Answer:
a
Step-by-step explanation:
the average elevation of New Orleans, Louisiana,is 8 feet below sea level.
What integer is used to represent this elevation?
The average elevation of Louisiana denoted as an integer is -8 feet.
An integer is a real number which is not a fraction. Examples of integers are -4,0,7,26.
There are 3 types of integersPositive integers such as 5,8,2354negative integers such as -1 , -45 ,100zero integer or 0Integers are subsets of Real numbers.All whole numbers and natural numbers are subsets of Integers.The elevation above sea-level of a place is represented by a number and it is calculated by length above or below the average water level of all water bodies on earth.
Places above sea level are denoted by a positive numbers while places below the average sea-level are denoted by negative numbers.
Here the height of Louisiana is 8 feet below the sea-level , so to denote the height of Louisiana we us the negative integer -8 feet.
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Jordan's t-shirt business sells long sleeve shirts for $15 and short sleeve shirts for $10. he needs to make at least $300 to buy a new heat press machine. so far, fewer than 28 people have purchased shirts. which system of inequalities fits this scenario?
The system of inequalities fits in this scenario are x + y & lt; = 2815x + 10Y & lt;= 300.
An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way.
The majority of the time, size comparisons between two numbers on the number line are made. Different types of inequalities are represented by a variety of notations, including: The symbol a b indicates that an is smaller than b. When a & gt; b is used, it indicates that an is bigger than b. A is not equivalent to b in any scenario. Since an is strictly less than or strictly greater than b, these relationships are known as stringent inequalities. Equivalence is not considered. In the given questions the inequalities are x + y & lt;= 2815x + 10y & lt;= 300
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U guys never let me downnnn cmonnn i need this quick thooo
The circumference of the circle with the radius is 50.24 inches
How to calculate the circumference of the circle?The figure represents the given parameter
On the figure, we have the diameter (d) to be
d = 16 inches
The radius of the circle is calculated using
r = d/2
So, we have
r = 16/2
Evaluate the quotient
r = 8
The circumference of the circle is then calculated as
C = 2πr
Where π is given as
π = 3.14
So, we have
C = 2 * 3.14 * 8
Evaluate the product
C = 50.24
Evaluate the product
C = 50.24
Hence, the circumference of the circle with the radius is 50.24 inches
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Write 0.33 as a percentage.
Answer:
33%
Step-by-step explanation:
moving the decimal two places to the right
89 + 38 x 2 = ?
Giving crown
Answer: 254
Step-by-step explanation:
89 + 38 x 2
89 + 38 = 127
127 x 2 = 254
Measure of each numbered angel m<1=38
The measures of the angles are <1 = 38, <2 = 142, <3 = 38 and <4 = 142
How to use the diagram to find the angle measures that satisfy each case?The diagram that completes the question is added as an attachment
From the diagram, we have
<1 + <2 = 180 degrees --- supplementary angles
Given that
<1 = 38 degrees
We have
38 + <2 = 180
Evaluate
<2 = 142
Also, we have
<3 = <1
<4 = <2
This means that
<3 = 38
<4 = 142
Hence, the measures of the angles are <1 = 38, <2 = 142, <3 = 38 and <4 = 142
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Is 4 x 10³ or 2 x 10⁸ larger in value? Explain why.
When finding the difference in elevations, should you only consider the absolute value of the difference? Why or why not? HELP ME WITH THIS PLEASE!!!
No, when finding the difference in elevations we should not consider only the absolute value of the difference because elevation differences can give a negative value as well.
What is absolute value?Absolute value describes the distance from zero that a number is on the number line, without considering direction.
We know that while measuring elevation there can be a positive value which means that the distance measured is above sea level and there can also be a negative value elevation which means that the distance measured is below sea level.
For example:
If we are measuring the difference in distance of two points below sea level.
One point is at -6 feet
Another point is at -14 feet
The difference between these points is:
= -14 - (-6)
= -14 + 6
= -8
We can have a negative difference in elevation but the absolute value will always give a positive value.
Therefore,
No, when finding the difference in elevations we should not consider only the absolute value of the difference because elevation differences can give a negative value as well.
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Peter rolls 2 fair dice and adds the results from each.
Work out the probability of getting a total of 11.
Answer:
Bro Im not gonna give u answer but im gonna give hint. I think u should make a chart with all possibilties and see how many of them can add upt o 11.
HELP PLEASEEEEEEEEEE
Answer:
11:50 AM
Step-by-step explanation:
We should first find the sum of the times it would take her to clean each room, along with the break time.
Kitchen = 80 minutes
Lounge = 40 minutes
Bedroom = 90 minutes
Bathroom = 35 minutes
Break = 45 minutes
[tex]\text{Total time (in minutes) } = 80 + 40 + 90 + 35 + 45 = 290.[/tex]
We should then divide this amount of minutes by 60 to find how many hours it took her.
[tex]\text{Total time (in hours) } = \frac{290}{60} = 4\frac56[/tex]
This means it took her 4 hours and 50 minutes to finish cleaning.
Therefore, if she started working at 7 AM and worked for 4 hours and 50 minutes, she was done by 11:50 AM.
Please help me please please
Simplifying the problem, 4 - 9 + 5 - 1 - 6 + 11 would give the result of 4.
How to simplify equation?In order to simplify the problem given of 4 - 9 + 5 - 1 - 6 + 11, you can put the numbers into brackets and then carry out math operation:
= (4 - 9) + (5 - 1) - (6 + 11)
Solving the numbers in the brackets gives:
= -5 + 5 - 1 - 6 + 11
= 4
In conclusion, the simplified form would be 4.
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wwwwwhat is a/-3-6=-1
Evaluate each logarithm.
log₁₂ 144
The logarithmic equation log₁₂ 144 = 2
What is logarithmic equation ?In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as .
[tex]log_ax=N[/tex]
where, a is the base of function or equation
x define expression
Mathematically, if is an exponential function is [tex]a^N=x[/tex] then, this can be converted to logarithmic function as [tex]log_ax=N[/tex]
There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.
According to statement,
log₁₂ 144
this can be written as ,
log₁₂ (12²)
= 2 log₁₂ (12)
= 2 . 1 (as, log a with base a = 1 )
= 2
Thus , log₁₂ 144 = 2
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A 1200 gram sample of radioactive matter will completely decay (be undetectable) in 10 hours. There exists a set of ordered pairs (t. m), where t is the amount of time in hours that the substance has been decaying, and m is the mass in grams that has decayed.
If t≥ 0, what is the range of m?
Using it's concept, the range of the function is given as follows:
0 ≤ m ≤ 1200.
What is the range of a function?The range of a function is the set that contains all possible output values for the function.
For this problem, we have to consider these two bullet points next, considering the mass is the output value of the function.
The smallest possible mass for the substance is of 0 grams, as after the substance decays to 0 grams, it will not assume a negative value, it will just disappear.The greatest possible mass for the substance is the initial mass of 1200 grams, as the substance does not adquire mass with time, it just loses it.Considering these masses, the range of the function is given as follows:
0 ≤ m ≤ 1200.
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simplify 6/22 = ?/? please help
Answer:
3/11
Step-by-step explanation:
divide each side by 2
Answer:
3/11
Step-by-step explanation:
Let's simplify the value,
→ 6/22
→(6 ÷ 2)/(22 ÷ 2)
→ 3/11
Thus, the value is 3/11.
5, 5/2, 5/4, 5/8, 5/16, find the next three terms in each sequence
Answer:
5/32, 5/64, 5/128
Step-by-step explanation:
Multiply the denominator by 2
PLS HELP I NEED RN AND ALSO THANKS!!
A Picture of the work is attached
The side AC is 8.5 cm.
What is AC?We know that a triangle is a polygon that has three sides. There are so many kinds of triangle such as;
Right angle triangleScalene triangle Isosceles triangle Equilateral triangleIn this case what we have is a right angled triangle ABC. Having seen this, we now have to find the side that has been marked AC in the triangle shown.
In this case, we are required to obtain the side that has been marked as AC and we have to use the given side AB and the angle that is given as angle BAC.
Now;
AB = 11 cm
Angle BAC = 39 degrees
AC = unknown
Thus we now have to make use of the trigonometric ratios;
Cos θ = opposite/ adjacent
opposite = AC
Adjacent = 11 cm
AC= 11 cm cos 39 degrees
AC = 8.5 cm
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What is the equation of the line that passes through the point (2,-1)and has a slope of 1
Answer:
y = x - 3.
Step-by-step explanation:
We use the point-slope form of the straight line:
y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line.
So, for this line we have:
y - (-1) = 1(x - 2)
y + 1 = x - 2
y = x - 2 - 1
y = x - 3.
You have solved equations containing square roots by squaring each side. You were using the property that if a=b then a²=b² . Show that the following statements are not true for all real numbers.
a. If a²=b² then a=b .
If a² = b² , then a = b is not true for all real numbers.
We know that ' if a = b, then a² = b²'.
We need to prove that the converse of this statement is not always true.
i.e., we need to show that if a² = b² , then a = b is not true for all real numbers.
To show that a statement is wrong we just need to find a counter example for the statement.
For this, let a = -5 and b = 5.
Clearly, a ≠ b
But -5² = 25 and 5² = 25
That is, a² = b² but a ≠ b.
Hence we proved that 'If a² = b² , then a = b is not true for all real numbers'.
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The expression 0.036m³/₄ is used in the study of fluids. Which best represents the value of the expression for m=46 x 10⁴ ?
(A) 636
(B) 1460
(C) 1660
(D) 16,600
The value of the expression 0.036m³/₄ is determined by algebraically substituting the value of m=46 x 10⁴ and solving the radical expression.
In the given radical expression, 0.036 is a constant and m is a variable with a power of ¾.
We will solve for the variable term first which will be written as a radical and multiply it with the constant.
Substituting m=46x10⁴ in the expression 0.036m³/₄.
0.036m³/₄=0.036(46x10⁴)³/₄
Now rewrite the expression as a radical,
0.036(46x10⁴)³/₄= 0.036∜(46*104)3
Multiply the exponents within radicand term,
= 0.036∜(463*1012)
Now simplify the expression,
= 0.036∜(463*(103)4
= 0.036*103 *∜463
= 0.036*103 *∜97,336
= 36 ∜97,336
= 36*17.66≈636
Hence, the correct answer is option A.
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she had to choose between two families to babysit for. the first family offers her 40 plus $5 per hour. The second family offers her $20 and $10 per hour. Which offer will make her more money and how much more will she make
The offer that will make her more money and how much more will she make is
The first offer$15 dollars moreThis is further explained below.
Which offer will make her more money and how much more will she make?Generally, the equation for the total made is mathematically given as
T= flat rate +(hours worked*hourly pay)
Therefore, for the first family
T= 40 + (6+5)
T=$51
For the 2nd family
T'= 20 + (6+10)
T'=$36
In conclusion, the offer that will make her more money and how much more will she make is
T'=51-36
T'=$15
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CQ
Simone wants to babysit this weekend to make some extra money she changes a flat fee then changes per hour or part thereof that she babysits Saturday afternoon she will babysit for 6 hours she had to choose between two families to babysit for. the first family offers her 40 plus $5 per hour. The second family offers her $20 and $10 per hour. Which offer will make her more money and how much more will she make
The change in position from the shaded figure to the unshaded figure is best described as a __________.
a.
reflection
c.
translation
b.
transversal
d.
rotation
Please select the best answer from the choices provided
A
B
C
D
The change in position from the shaded figure to the unshaded figure is best described as a translation.
What is a translation transformation?A translation transformation is such that the entire shape is copied and then this copy is moved to another part of the graph.
In a translation, the size of the shape does not change. Other things that don't change include the orientation of the shape. It remains the exact same, but in a new location.
The shape, size and orientation of the shaded figure is the same as the unshaded figure so this is a translation.
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how do you know when a table is a function? explain
Answer:
You know a table is a function when each element inside the domain matches with only one element within the range.
Answer: You know a table is a function when each element inside the domain matches with only one element within the range.
Step-by-step explanation: hope this helps
In an arithmetic series, s40 = 1900 and u40 = 106. find the value of the first term and the common difference.
The first term and common difference of the arithmetic series are -11 and 3.
How to solve an arithmetic series?In the arithmetic series, S₄₀ = 1900 and U₄₀ = 106
Hence,
Sₙ = n / 2 (2a + (n - 1)d)
S₄₀ = 20(2a + 39d)
S₄₀ = 40a + 780d
1900 = 40a + 780d
Uₙ = a + (n - 1)d
U₄₀ = a + 39d
106 = a + 39d
Combine the equation
a + 39d = 106
40a + 780d = 1900
20a + 780d = 2120
40a + 780d = 1900
20a = - 220
a = -220 / 20
a = -11
Hence,
106 = a + 39d
106 = -11 + 39d
106 + 11 = 39d
117 = 39d
divide both sides by 39d
d = 117 / 39
d = 3
Therefore, the first term and common difference of the arithmetic series are -11 and 3.
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