Which is true regarding the system of equations? x minus 4 y = 1. 5 x minus 20 y = 4. The system results in a false statement. The system results in an intersection at one point. The system results in many solutions because they are the same line. The system results in a true statement.
Answers
Answer:
The system results in a false statement.
Step-by-step explanation:
Let's actually solve the system
x-4y=1 (1)
5x-20y=4 (2)
Using the elimination method
Eliminate y by multiplying equ (1) by -5
We have,
-5x + 20y = -5 (3)
Add equ (3) and (2)
-5x + 20y = -5
5x - 20y = 4
0 = -1
The system results in a false statement.
Answer:
It is a false statement, hence it is option choice a
Step-by-step explanation:
Related Questions
what is the product of 4/7 and 1/5 as a fraction
Answers
Answer:
27/35
Step-by-step explanation:
\(\frac{4}{7}\)x5= 20/35
\(\frac{1}{5}\)x7=7/35
27/35
explanation: 4 x 1 = 4
7 x 5 = 35
so you just multiply straight across normally!!
hope this helped !!
A. Find the smallest positive integer m such that C^m(9) = 1
B. Find all n such that C^3(n) = 16
Answers
Answer:
Step-by-step explanation:
ressions.
There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are removed, the total number of pens that remains is given by the expression (12x − 10) + (10y − 5). Here, x represents the number of boxes containing red pens and y represents the number of boxes containing blue pens.
On a summer day, the heat of the land heats the air, causing it to rise and spread before cooling over the ocean, creating a breeze. How is thermal energy conducted when this happens?
through convection
through conduction
through radiation
through refraction
Answers
Answer:
Through convection
Step-by-step explanation
The transfer of thermal energy from one point to the other in solids, liquids or gases may occur in the form of conduction, convection or radiation. The transfer of heat from from to air, and its subsequent spread across the ocean is made possible by convection.
Thermal energy transfer through convection involves the transmission of heat from hotter or warmer portions of a fluid to cooler portions. Conduction involves the movement of heat usually in solids such that, heat moves from areas closer to the heat source to parts further away. Thermal Radiation is the transfer of heat in the form of electromagnetic radiation. This is the main form of heat transfer in gases. Example is the transfer of sun's heat to the earth.The transfer of heat from land to air and it's subsequent spread across the ocean occurs through convection.
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V to the power of 2 = 47
(I'M IN CLASS HELP THERES 6 MINUTES LEFT)
Answers
Answer:
Well even though you dont need it now the answer is v = 42 squared
Step-by-step explanation:
I used g00g1e like a normal person would
In order to isolate V, we must square root each side.
V^2√2 = 47√2
V = 6.855654600401044 or 6.9 rounded
Hope this helped!
in each diagram the line BD bisects angle ABC. Find the measure of angle ABC
Answers
Answer:
∠ ABC = 134°
Step-by-step explanation:
Given tat CD bisects ∠ ABC then
∠ DBC = ∠ ABD , substitute values
x - 33 = \(\frac{x}{2}\) + 17 ( multiply through by 2 to clear the fraction )
2x - 66 = x + 34 ( subtract x from both sides )
x - 66 = 34 ( add 66 to both sides )
x = 100
Thus
∠ DBC = ∠ ABD = x - 33 = 100 - 33 = 67°
Hence
∠ ABC = ∠ DBC + ∠ ABD = 67° + 67° = 134°
Which equation represents a linear function?
A. y= 1/2 x to the second power - 5
B. y= 1/2 x to the third power - 5
C. y= 1/2 x + 5
D. y=(1/2) to a power - 5
Answers
Answer:
C. y = 1/2x + 5
Step-by-step explanation:
For A. and B. x to a power of something, if x is at a power of anything, like x^2 or x^3, then it is not linear.
For D. it doesn't even have x in it, so basically y equals a number.
C. is a linear equation, y = 1/2x + 5
This is because any slope to a certain power would make it an exponential function.
C. y= 1/2 x + 5 is not to any power, making it linear
What is the value of negative 8 divided by 5?
A. −0.4
B. −1.6
C. 0.4
D. 1.6
Answers
Help please ASAP!!!!
Answers
how far was 14.5 from 14.4
Answers
Answer:
.1
Step-by-step explanation:
14.5-14.4=.1
Explanation:
Sam rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 99 cents for each mile driven. Sam had to pay $162.53 when he returned the truck. For how many miles did he drive the truck?
HELP THIS IS DUE TMR
Answers
-17.99 -17.99
= 0.99x=144.54 now divide 2.
—— ——-
0.99 0.99
= x=146
Your answer would be 146 miles:)
163.53-17.99=?/.99=146miles
Solve for x:
3x=21
A) x=7
B) x=7.5
C) x=-7
D) x=-7.5
Answers
\(\text {Hello! Let's Solve this Equation!}\)
\(\text {The Only Step is to Divide 3:}\)
\(\text {3x/3=21/3}\)
\(\text {Your Answer would be:}\)
\(\fbox {x=7}\)
\(\text {Best of Luck!}\)
Answer:
A
Step-by-step explanation:
3x = 21
~Divide 3 to both sides
x = 7
Best of Luck!
A submarine dives 68 meters below its original location and then rises. The number line shows the elevations of the submarine after each event. How far did the submarine rise after diving? What was the original elevation of the submarine?
Answers
Answer:
It rose 17 meters
Step-by-step explanation:
163m is the depth of when it dove so if you take 163-68 then you get the original depth of 95 then take 95 - 78 to get 17 meters and thats your answer hoped i helped! :D good luck and i hope you do better
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
8th grade math i mark as brainliest
Answers
Answer:
1/32
Step-by-step explanation:
The probability of rolling a 6 on a 6-sided die is 1/6, and the probability of rolling a 4 on a 6-sided die is also 1/6.
Assuming that the rolls are independent (i.e., the outcome of one roll does not affect the outcome of the other roll), the probability of rolling a 6 and then a 4 is the product of the probabilities of each individual event:
Probability of rolling a 6 and then a 4 = (Probability of rolling a 6) x (Probability of rolling a 4)
= (1/6) x (1/6)
= 1/36
Therefore, the probability of rolling a 6 and then a 4 on a 6-sided die rolled twice is 1/36, or approximately 0.0278 (2.78%).
Which product is negative? will mark brainliest
Answers
Neg*neg=pos
1. Has two neg and two negs make a pos
2. Has 4 neg which will also make pos
3. Has 3 neg. The first 2 will cancel out and make a pos but the last one will make the answer neg
4. Would just be 0 because its multiplying 0 but without it it would be neg.
So the answer is the third one
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
Answers
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
To know more about functions and points:
https://brainly.com/question/30721594
Order the numbers from closest to zero to farthest from zero:
4.38, l4.5l, l-4.6l, -l4.9l
HELPPPPP
Answers
The smallest number is the one closest to zero, or after zero, if it's a negative number, while the largest number is the number with the largest difference from the smallest, or the highest of value (not considering all situations). Usually, you would use the ascending order method for graphing numbers based on their value, which is indeed smallest to largest. According to thefreedictionary.com, "A function or variable continuously approaching zero as a limit." Tip: In ordering numbers based on value, the whole numbers that aren't negative are considerably believed to be the easiest numbers to order.
With that being said, here is the order of the numbers from smallest to largest:
4.38
4.5
4.6
4.9
Answer:
Here are the numbers ordered from closest to zero to farthest from zero:
4.38 (closest to zero)
4.5
-4.6
-4.9 (farthest from zero)
Step-by-step explanation:
PLEASE HELP IMMA GET YELLED AT IF "I" DONT DO THIS
Answers
Answer:
so you can write the equation like
y=x+2/5
Answer:y=x+2/5
Step-by-step explanation:
a. Survey 1 is biased.
b. There is no bias.
Answers
Answer:
yes there seems to be a bias.
For every 25 litres of petrol a car can run for 60 km.
How much petrol do you need (to 1 DP) to ensure the car has enough petrol of a trip that is 105 km?
Answers
Answer:
43.75 litters of petrol
Step-by-step explanation:
105/60 = 1.75
1.75(25) = 43.75
(10-7)- (1+6)
can someone explain how to get the answer in words or numbers
Answers
Answer:
4 or -4
Step-by-step explanation:
10-7=3 then 1+6=7 3-7=-4
Calculate
3-7
Calculate
=4
I don't quite get what it is asking please help me.
Answers
2x + 20 + 3x + 40 = 90
Simplifying the left side of the equation by combining like terms, we get:
5x + 60 = 90
Subtracting 60 from both sides of the equation, we get:
5x = 30
Finally, dividing both sides of the equation by 5, we get:
x = 6
Therefore, the value of x is 6.
Answer:
Step-by-step explanation:
COMPLEMENTARY ANGLES ARE THE ANGLES THAT SUM EQUALS TO 90°.
∴ 5X+60°=90°
5X=30° ⇒X=6°
Order Of operation.
15) Jerry was told that he would earn $8 each for washing cats and $16 each for washing dogs. Write an expression to determine his total earnings if he washes 16 cats and 14 dogs.
Answers
Answer:
352.
y = 8c + 16d
Step-by-step explanation:
Expression:
c = cats
d = dogs
Expresion: y = 8c + 16d
Now use it by plugging in.
y = 8c + 16d
y = 8(16) + 16(14)
y = 128 + 224
y = 352 (that's how much he earned)
Answer:
(16 x $8) + (14 x $16)
Step-by-step explanation:
$8 for washing each cat
16 cats
16x$8 - Amount earned for washing cats
$16 for washing each dog
14 dogs
14x$16 - Amount earned for washing dogs
"Total earnings" = add them up
(16 x $8) + (14 x $16)
Is this description wrong or right?
Mr.Morrison weighs 320 pounds.He plans to lose 15 pounds per month.
Is this equation right or wrong?
y=320-15x
Answers
Answer:
Yes
Step-by-step explanation:
y=320-15x x=how many months.
Answer:
yes its correct
Step-by-step explanation:
now here we see 320 pounds Mr.Morrison plans to lose 15 pounds a MONTH so thats 15x and he said "lose 15 pounds" so it has to be negative so your answer is correct y=320-15x
please answer quickly
Answers
Answer:
37.5
Step-by-step explanation:
cosФ = \(\frac{A}{H}\)
cos(33°35') = \(\frac{m}{45}\)
m = 45 × cos(33°35')
m = 37.5 (1d.p.)
Simplify expressions using the distributive property
9(x+3)
-2(y-10)
4(x-6)
6(x+2y+4x)
15x+10/5
Answers
-2y + 20
4x - 24
30x + 12xy
15x + 2 (?)
~ I’m not sure abt the last one! I’m sorry if they’re incorrect and I hoped this helps! ~
-2y+20
4x-24
6x+12y+24x
I don’t understand the last one hope this helps
What decimal is in between 2.00 and 2.10?
Answers
Answer:
Step-by-step explanation:
The decimal form of 2/10 is given by dividing 2 by 10.
The decimal point of a decimal number moves by one place towards the left if we divide it by 10.
Hence, 2 divided by 10 is 0.2
Thus, 2/10 in decimal form is 0.2.
Answer: the answer is 2.05
Step-by-step explanation:
well it's like counting normal from 1 to ten. It wouldn't be 2.5 because that can be 50.
Can someone please tell me how to measure the diameter of a circle? Im confused.
Answers
Answer:
Draw a straight line across the center of the dot and join 2 edges of the circle together. Then measure the line.
Step-by-step explanation:
The diameter of the circle is only found when it is in the center of the circle.
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Answers
I don't understand how to do this please explain how to. Step by step, I keep getting it wrong and I am confused.
Answers
Answer: The surface area is 21,274.4 square feet.
Step-by-step explanation:
The total surface area is 4 (0.5bh). Although you would multiply it by 4 because there 4 triangular faces, b is the base & h is the height. It’d change to A = 4(0.5) (116 ft) (91.7 ft) so your answer ends up as A = 21274.4 square feet.