2x - 4y = 20
x/3 - y= 3
Solve by using substitution
Answer:
Step-by-step explanation:
2x-4y=20
y=-3+x/3
2x-4(-3+x/3)=20 ⇒ 2x+12-4x/3=20 ⇒ 2x/3+12=20 ⇒ 2x/3=8
x=12
y=1
2(12)-4(1)=20
Determine if the sequence below is arithmetic or geometric and determine the common difference/ratio in the simplest form. 180,\, 30,\, 5,\..
Answer:
geometric sequence
Step-by-step explanation:
A geometric sequence has a common ratio r between consecutive terms.
Here r = [tex]\frac{30}{180}[/tex] = [tex]\frac{5}{30}[/tex] = [tex]\frac{1}{6}[/tex]
Then sequence is geometric
Solve for x
5=2x-3 will give brainliest
A snail travels at a rate of 2.33 feet per minute. The snail travels for 14 minutes before being smashed.
Give the domain of the function and relate it to the relationship described
Answer:
poor snail
Step-by-step explanation
the snail traveled 32.62 ft before gettin smashed
Solve the inequality,
-3k - 12 > -k + 10
Answer:
k < - 11
Step-by-step explanation:
- 3k - 12 > - k + 10 ( add k to both sides )
- 2k - 12 > 10 ( add 12 to both sides )
- 2k > 22
Divide both sides by - 2 , reversing the symbol as a result of dividing by a negative quantity.
k < - 11
Hi!
----------------------------------------------------------------------------------------------------------------
-3k-12>-k+10
-3k+k>10+12
-2k>22
-k>11
Now, when we divide by a negative variable, we change the sign of our inequality:
k<-11
Hope it helps!
~SparklingFlower
-------------------------------------------------------------------------------------------------------------
Find the slope and y-intercept
Answer:
1/2 and -1
Step-by-step explanation:
Rise = 2-1 = 1
corresponding Run = 6 -4 =2
rise/run = 1/2 = slope
So we know that when x=0 we will find the y intercept/
put them in ordered pair you will find
(6,2)
(4,1)
the next one should be (2,0)
and (0,-1)
So the y intercept is -1
Answer:
m=1/2
b=-1
Step-by-step explanation:
to find the slope, we need to see what values x and y increase by. in this table, we can see that as x increases by 2, y increases by 1. since slope is written as rise(x)/run(y), we can write the slope as 1/2.
for the y-intercept, we can use how the x and y values increase as well. we need to find the value of y when x is 0. we know that as x increases by 2, y increases by 1, so we need to do the opposite of both to find the y-intercept. this would be x decreasing by 2 and y decreasing by 1. we can make a table to find the y intercept.
x - 0, 2, 4, 6, 8, 10
y - -1, 0, 1, 2, 3, 4
we can see here that when x=0, y=-1, so that is the y intercept or b value.
factor the expression
81x -36
Answer:
(9x-6)(9x+6)
Step-by-step explanation:
3
Let A and B be two positive integers (whole numbers). The
greatest common factor (GCF) of A and B is 12, and the
lowest common multiple (LCM) of A and B is 180. The value
of A is 36. What is the value of B ?
Answer:
B = 60
Step-by-step explanation:
A = 36
B = 60
We are told that the LCM of A and be is 180. That would mean that 180/36 = 5
greatest common factor (GCF) of A and B is 12. Multiply this by the GCF of 12 to get 60.
Check to see if this works:
The GCF of 12: 60/12 = 5 and 36/12 = 3: Checks
The LCM of 180: 180/36 = 5; 5*36 = 180 and 3*60 = 1180; Checks
How do you calculate the average of a set of numbers?
Answer:
You add all of the numbers of the set and how many numbers there are.
Here is an example:
The set is: {3, 7, 2, 9, 1}
There are five numbers, 3, 7, 2, 9, and 1. We then add all these numbers.
3 + 7 + 2 + 9 + 1 = 22
22 divided by 5 = 22/5 = 4.4
The average number between the set, "{3, 7, 2, 9, 1}" is 4.4.
Hope This Helps! •v•
Marcos has a bank account balance of -$42.30 at the start of the month. After he deposits $16.50, what is his new balance?
Answer:
$25.80
Step-by-step explanation:
you have to add 16.50 to -42.30
This balance is negative.
================================================================
Explanation:
Start with -42.30 and add on 16.50
-42.30+16.50 = -25.80 is the final balance
The negative balance means Marcos owes this amount of money to the bank. This is true even though he deposited $16.50; he would need to deposit another $25.80 to get out of debt (this is assuming that there aren't any other bank fees coming down the line).
We can think of -42.30+16.50 as 42.30-16.50, but then make the result negative since -42.30 has a larger absolute value compared to 16.50
describe the energies of electrons in an nucleus
Answer:
The Energy of an Electron
The energy of an electron is of the same order of magnitude (is in the same range) as the energy of light. The lines in the spectrum of an element represent changes in the energy of electrons within the atoms of that element. By studying these spectra, scientists have drawn various conclusions about the behavior of electrons in atoms.
1. The energy of an electron depends on its location with respect to the nucleus of an atom. The higher the energy of an electron in an atom, the farther is its most probable location from the nucleus. Notice that we say probable location. Because of the electron's small size and high energy, we are limited in how precisely we can mark its position at any instant. We can only describe regions around the atom's nucleus within which the electron may be found.
2. In describing these regions of space, we also recognize that the energy of an electron is quantized. What does this statement mean? A property is quantized if it is available only in multiples of a set amount. If you are pouring a soft drink from a can, you can pour out as much or as little as you like. However, if you are buying a soft drink from a machine, you can buy only a certain amount. You cannot buy a half or a third of a can of soda; you can buy only a whole can or several cans. Soft drinks dispensed by a machine are available only in multiples of a set volume, or quantum. Thus, the dispensing of soft drinks by machine has been quantized.
Energy can also be quantized. If you are climbing a ladder, you can stop only on the rungs; you cannot stop between them. The energy needed to climb the ladder is used in finite amounts to lift your body from one rung to the next. To move upward, you must use enough energy to move your feet to the next higher rung. If the available energy is only enough to move partway up to the next rung, you cannot move at all because you cannot stop between rungs. Thus, in climbing the ladder, your expenditure of energy is quantized.
Step-by-step explanation:
Please mark as brain list
best anime opening/ending n your opinion? mine would be unravel or mahou
Answer:
i mean like my sister likes todoroki
Step-by-step explanation:
Answer:
not sure about endings but for openings
Tokyo Ghoul: unravel, katharsis
Death Note: The world
Parasyte: Let me hear
MHA: Polaris, Peace sign, Odd Future
that's bout it for now
Step-by-step explanation:
in Pittsburgh, the sales tax is charged at the rate of 6%. Find the and the total price of a stereo that cost $860
If
m
=
−
3
,
what is the value of
5
m
+
10
(
m
−
1
)
?
Answer:
Step-by-step explanation:
Если
m
=
−
3
,
то каково значение
5
m
+
10
(
m
−
1
)Если
m
=
−
3
,
то каково значение
5
m
+
10
(
m
−
1
)Если
m
=
−
3GGTFHFHFHGHG
,
то каково значение
5KJHUHUH
m
+
10
(
m
−
1
)
-55 is the value of the expression 5m+10(m-1) when the value of m is -3.
The given expression is 5m+10(m−1).
We need to find the value of expression when m is -3.
Let's substitute the value of m=−3 into the expression 5m+10(m−1):
5m+10(m−1)
=5(−3)+10((−3)−1)
=−15+10(−4)
=−15−40
=−55
Hence, the value of the expression is -55.
To learn more on Expressions click:
https://brainly.com/question/14083225
#SPJ3
Complete question:
If m=−3, what is the value of 5m+10(m−1)?
Given the ordered pairs,
determine if JK and Lmare
parallel, perpendicular, on
neither.
J(13, -9), K(8, 1),
L(-10, 9), M(-7, 3)
a. parallel
b. perpendicular
c. neither
Answer:
A) parallel
Step-by-step explanation:
Slope of J.
1+9/8-13
10/-5
slope= -2
Slope of L.
3-9/-7+10
-6/3
slope= -2
Since the two lines have the same slope the lines are
A) parallel
Solve by elimination.
5x - 2y = 4
3x + y = 9
Answer:
x=2 y=3
Step-by-step explanation:
first multiply equation 2 with (+2)
5x-2y=4
6x+2y=18
now add equation 1 to equation 2
11x=22
x=2 now substitute x=2 in equation 1 or 2
5(2)-2y=4 10-2y=4 -2y=4-10 -2y=-6 y=3
A 1×6 square unit rectangular grid has to be covered with six 1×1 square unit tiles. Three of the tiles are yellow, two are white, and one is blue. In how many ways can this task be done if no two neighboring tiles are the same color?
Answer:
60
Step-by-step explanation:
Work with a partner. Can you make the tessellation by translating single tiles that are all of the same shape and design? If so, show how
1 point
Levi owns 4 acres of farmland. He grows beets on 2/3 of the land. On how many acres of land does Levi grow beets?
Answer:
3.5
Step-by-step explanation:
Find −1/6(2.4) . Write your answer as a fraction in simplest form.
Answer:
-2/5 is the answer, hope this helps :)
Step-by-step explanation:
Peg needs to pick three students from her class of 28 for safety patrol. How many combinations of three students are there
Answer: I think the answer is 84
Step-by-step explanation: I just did 3×28
Zoe has $19 more than Krystal. Both have a combined total of $37. Enter how much money Zoe has.
Answer:
Krystal=$9 , Zoe=$28
Step-by-step explanation:
Zoe = x+19
Krystal = x
Equation - x+x+19=37
Simplify - 2x+19=37
2x=18
x=9
Is it true that when we multiply a number by 3, we get the same value as if we added 6 to that number.
Answer:
True
Step-by-step explanation:
Multiplying a number by 3 will produce the same value as adding 6 to that number can be expressed algebraically as:
3x = x + 6
In order to determine whether the given statement is true, we can solve for x:
Start by subtracting x from both sides:
3x - x = x - x + 6
2x = 6
Divide both sides by 2:
2x/2 = 6/2
x = 3
Substitute the value of x into the original equality statement:
3x = x + 6
3(3) = 3 + 6
9 = 9 (True statement).
Therefore, it is true that when we multiply a number by 3, we get the same value as if we added 6 to that number.
Elena walked 12 miles. Then she walked 14that distance. How far did she walk all together
Answer:
I don't get the question
Step-by-step explanation:
You have $814 that you want to share equally between 5 charities.
To start, you divide the money so that each charity gets a $100 bill.
What is the most useful next step?
Answer:
give each charity $60
Step-by-step explanation:
$814 to divide equally to 5 charities.
From 814 if we give -100, -100, -100, -100, -100, we have left 314 to split in 5
the most useful next step is to give each charity $60
From $814 if we give -100, -100, -100, -100, -100
-60, -60, -60, -60, -60
we have left now:
814 -5*100 -5*60 = 814-500-300 = $14 left to split among the 5 charity.
find the slope of the line, given the points (2,1) and (6,3) show all your work. Do not convert into decimal if you have a decimal answer.
m = (Y2 - Y1)/(X2 - X1)
m = (3 - 1)/(6 - 2)
m = 2/4 <==> ½
Given points,
(2,1) = (x₁, y₁)
(6,3) = (x₂, y₂)
To find the slope, we need to use the formula =》(y₂ - y₁)/(x₂ - x₁)
So,
(y₂ - y₁)/(x₂ - x₁)
= (3 - 1)/(6 - 2) [substitute the values]
= 2/4
= 1/2
◇ Slope of the line = 1/2.
_____
solve x = sqrt 30^2 - 25^2 please do step by step asap!! root goes all the way over
Answer:
Step-by-step explanation:
help asap for brainlist
Answer:
Function G: +2
Function H: +3
Function H has a greater value when x = 10
Step-by-step explanation:
Johnny has 6 /4 feet of material for his costume. He needs 10 2/3 feet for the entire costume. How much more material does he need?
Answer:
9 2/12 more feet
Step-by-step explanation:
2x+6/5=2y solve for y
Answer:
y=x+3/5
Step-by-step explanation:
y= (2x+6/5)/2 = x+ 3/5
