Answer:
x = 3
y= 12
Step-by-step explanation:
2x + 2y = 30
y - 4x = 0 /*2
2x + 2y = 30
2y - 8x = 0
-----------------
10x = 30
x = 3
y= 12
Answer:
( 3 , 12 )
Step-by-step explanation:
2x + 2y = 30 and y - 4x = 0 are two given equation
Name The equation
2x + 2y = 30 ...(1)
y - 4x = 0
y = 4x ...(2)
Now, Put the value of y in equation 1
2x + 2y = 30
2x + 2(4x) = 30
2x + 8x = 30
10x = 30
x = 30/10
x = 3
Now,
Put the value of x in equation 2
y = 4x
y = 4(3)
y = 12
Thus, The value of x is 3 and the value of y is 12
FOR VERIFICATION ONLY:-2x + 2y = 30 ...(1)
2(3) + 2(12) = 30
6 + 24 = 30
30 = 30
y = 4x ...(2)
12 = 4(3)
12 = 12
Hence, L.H.S = R.H.S
-TheUnknownScientist
3(x + 7) = 2(4x + 23)
X=
i need help its for 7th grade math
Answer:
4:20
Step-by-step explanation:
because there are 20 teachers in all and 4 science teachers so your chances of getting a science teacher are 4 out of 20
Help with this assignment?
Dylan has a bank that sorts coins as they are dropped into it. A panel on the front displays the total number of coins inside as well as the total value of these coins. The panel shows 90 coins with a value of $17.55 inside of the bank. Dylan only collects dimes and quarters. Determine how many quarters and how many dimes Dylan has.
Answer: There are 57 quarters and 33 dimes.
Step-by-step explanation:
let x = Number of quarters
y= Number of dimes
As per given , we have
x+y = 90 (i)
0.25x+0.10y= 17.55 (ii)
Multiply 10 on both sides of (ii)
2.5x+y= 175.5 (iii)
Eliminate (i) from (iii) , we get
1.5x = 85.5
⇒ x= 57
Put value of x in (i) , we get
57+y=90
⇒ y= 90-57
⇒ y= 33
Hence, there are 57 quarters and 33 dimes.
Consider the sets below.
U=x| x is a real number}
A= x| x is an odd integer)
R=x|x=3, 7, 11, 27}
Is RCA?
O yes, because all the elements of set A are in set R
O yes, because all the elements of set R are in setA
O no, because each element in set A is not represented in set R
O no, because each element in set R is not represented in set A
Answer: BBBBBB
Step-by-step explanation:
The correct option is,
"Yes because all the elements of set R are in set A"
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given the following sets;
U = {x | x is a real number}
A = {x | x is an odd integer}
R = {x | x = 3, 7, 11, 27}
Hence, The elements of the set A are,
⇒ A = {1, 3, 5, 7, 9, 11...}
R ⊂ A can be interpreted as R is a subset of A
i.e all the elements of R can be found in A.
Since, all the elements of R are all odd integers and can be fi=ound in A, hence R ⊂ A is TRUE.
The correct option is "Yes because all the elements of set R are in set A"
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ill offer 50 points plus 30 points for all of this
Answer:
0.64 Fraction: 16/25 Percent: 64%
55% Fraction: 11/20 Decimal: 0.55
0.16 Fraction: 4/25 Percent: 16%
17/100 Decimal: 0.17 Percent: 17%
0.35 Fraction: 7/20 Percent: 35%
28% Fraction: 7/25 Decimal: 0.28
62.5% Fraction: 5/8 Decimal: 0.625
Step-by-step explanation:
Answer:
0.64 Fraction: 16/25 Percent: 64%
55% Fraction: 11/20 Decimal: 0.55
0.16 Fraction: 4/25 Percent: 16%
17/100 Decimal: 0.17 Percent: 17%
0.35 Fraction: 7/20 Percent: 35%
28% Fraction: 7/25 Decimal: 0.28
62.5% Fraction: 5/8 Decimal: 0.625
Step-by-step explanation:
A number line going from negative 1 to positive 1 in increments of 1. There are 5 equal spaces between each number. Select all the statements that are true. –1 is less than Negative StartFraction 4 Over 5 EndFraction. –0.3 is less than One-fifth. 0.6 is greater than 1. 0 is greater than –0.5. Negative three-fifths is equal to –0.6.
Answer:
–1 is less than Negative StartFraction 4 Over 5 EndFraction
Step-by-step explanation:
Number line from - 1 to + 1 in Increment of 1 ; with 5 equal spaces between each number ;
–0.3 is less than One-fifth
0 is greater than –0.5
Negative three-fifths is equal to –0.6
Number line :
-1 to 0 to 1
-1, - 0.8, - 0.6, - 0.4, - 0.2, 0, 0.2, 0.4, 0.6, 0.8, 1
–1 is less than Negative StartFraction 4 Over 5 EndFraction : - 1 < - 0.8 (true)
–0.3 is less than One-fifth : - 0.3 < 0.2 (true)
0.6 is greater than 1 ( false)
0 is greater than –0.5 (true)
Negative three-fifths is equal to –0.6; - 0.6 = - 0.6 ( true)
Answer:
The answer is A B D E
Step-by-step explanation:
Can you guys help me pls
Answer:
The answer is 4/6
Step-by-step explanation:
2:3 and 4:6 share the same exact relationship but is expressed using different numbers, for example, 2:3 * 2 = 4:6 and 4:6 / 2 = 2:3
Answer:
4/6
Step-by-step explanation:
2:3 = 2/3
2/3 × 2 or 2/3 + 2/3
is equal to
or equivalent 4/6
hope this helps :)
Which statement best explains why the Tenth Amendment reserves some rights and powers to the states? The framers believed in the principle of federalism. The framers wanted the states to be more powerful than the national government. The framers wanted to limit citizens' rights. The framers wanted to control civil liberties.
Answer:
The farmers believed in the principal of federalism
Step-by-step explanation:
edge 2020
The tenth amendment reserved some powers to the states because the The framers believed in the principle of federalism.
The concept of federalism is a political term that describes the power of states or provinces to share power with the national government or the central government.
The 10th amendment agrees to federalism by providing that all powers that were not given to the federal government by the constitution, belongs to the states or the people.
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12. Write an equation in slope-intercept form that passes through (5,-2) and (-16,4).
Answer:
Slope: (y2-y1)/(x2-x1)
(4+2)/(-16-5) = 6/-21 = -2/7
Y = -2/7x + b
5 = -2/7(-2) + b, b = 31/7
Equation: y = -2/7x + 31/7
Step-by-step explanation:
15. Write the slope intercept form of the equation of each line given the
slope and y-intercept. Slope = 2 y-intercept = -7
Answer:
y=2x-7
Step-by-step explanation:
it is in the form y=mx+b where m=2 and b=-7
Which expression is undefined?
A. (3 - 3)
——
7
B. 0➗5
C. (0 - 12)
——
-6
D. 8
—
(-2+2)
Answer:
Its D i had to guess but got it right :)
Step-by-step explanation:
I NEED HELP ASAP!!!!!!!
Step-by-step explanation:
We know that m<1 = m<2 ( being alternate angels) So,
4+ 12x = 11x +12
12x - 11x = 12 - 4
x = 8
Therefore x = 8
Now
m<1 = 4 + 12 * 8
= 4 + 96
= 100
Hope this helps. :)
MOLDY FRIJOLES!!!!!what is x+y=10
Answer:
lol......
.
..
............
b. Sonya says that her profit is increasing 4 times as
fast as Kirsten's profit. Do you agree? Explain.
Lesson 8 Compare Functions
Answer:
No, I beleive that her profits are only 3 times as much as Kirsten's profits.
Step-by-step explanation:
Where is the blue dot on the number line?
Answer: The blue dot is -2.1
please answer this question
Answer:
D. 1,300
Step-by-step explanation:
Brainiliest if right 3. Solve the following equation.
-y/7 = 35
A. -245
B. 5
C. 245
D. -5
Answer:
The answer is -245
Step-by-step explanation:
You solve for y by simplifying both sides of the equation, then isolating the variable, of which is -245.
Answer:
B.
Step-by-step explanation:
I am not sure if this is right
The average daily maximum temperature in Cyprus is 21.85 degrees Celsius in the average daily minimum temperature is -4.7 degrees Celsius is the average daily maximum temperature is blank Celsius higher than the average daily minimum temperature
Answer:
26.55°C
Step-by-step explanation:
21.85 + 4.7
Average maximum daily temperature = 21.85°C
Average minimum temperature = - 4.7°C
The average daily maximum temperature is x°C higher than the average daily minimum temperature ;
x = (maximum temperature - minimum temperature)
x = (21.85 - (-4.7))°C
x = (21.85 + 4.7)°C
x = 26.55°C
Hence, The average daily maximum temperature is 26.55°C higher than the average daily minimum temperature
The tape diagram represents the ratio of the time you spend tutoring to the time your friend spends tutoring. You tutor for 3 hours. How many hours does your friend spend tutoring?
Answer:
By a quick online search, i found two tape diagrams:
13) You: -
Friend: - -
So you have one block, and your friend has two.
We know that you work for 3 hours, this means that your only block must represent 3 hours.
And all the blocks represent the same amount of time, then each one of the two blocks of your friend also represents 3 hours.
Then in total, he tutored for 3 hours + 3 hours = 6 hours.
14) You: -
Friend: - - - - -
In this case, you still have only one block, but now your friend has 5.
Using the same reasoning as above, we can conclude that each block represents 3 hours, and your friend has 5 of them, this means that he tutored for:
5*3 hours = 15 hours
the cost of parking of an hourly lot can be represented by the following equation y=3x+2. what does the 3 tell you about the cost of parking
Answer:
The hourly cost for parking
Step-by-step explanation:
The equation is given in the slope intercept form; which means the "3" in front of the x means the cost for parking is 3 and x will be the amount of hours; just like the slope m in the equation y = mx + b
The number of students that enrolled in a new school club as a function of time can be represented by the function as shown in the graph.
What is the average rate of change in the number of students that enrolled between hours 1 and 2?
Answer:
I think it is 1 student per 15 min
Step-by-step explanation:
fill in the blank to show an example of the symmetric property:
If JK = ST, then _ = __
Francis used the distributive property of multiplication to help him solve the equation 6 x 2 = ________. Francis did not get the same answer for each side of the expression. Explain the steps required to correct his mistake. 6 x 2 = (3 x 2) + (4 x 2) 12 = 6 + 8 12 = 14
Solution :
The distributive property of multiplication :
It is given that we have to find the solution for the below expression using the distributive property of multiplication,
So 6 x 2 = __________
Using distributive property, we can write :
⇒ 6 x 2 = 12
⇒ (3 + 3) x (2 ) = 12
⇒ (3 x 2) + (3 x 2) = 12
⇒ 6 + 6 = 12
⇒ 12 = 12
The school doubledutch team needs to raise at least $850 to buy new practice equipment. The team received a donation of $125, and also earns $4 per ticket sold. What is the least number of
tickets that need to be sold for the team to have enough money for the new practice equipment?
181 tickets
Answer:
$850 equipment
$125 from donation
they need $725
Step-by-step explanation:
if they earn $4 per ticket,
725÷4= 181.25
thus they need to sell atleast 182 tickets to have enough money
Answer:
850$ from equipment
and 150$ from it
Ana tiene ahorrados 30 €. Un fin de semana sale al cine con unos amigos y se gasta 7 €, le compra un regalo que le cuesta 12 € a una amiga y paga el billete de tren, que le supone 3 €. Si al llegar a casa su padre le da sus 15 € semanales, ¿cuánto le queda finalmente? (Plantear la solución como una única operación con enteros).
Answer:
A Ana le queda 23 €.
Step-by-step explanation:
La mejor estrategia para la resolución de este problema consiste en leer paso a paso y traducirlo en una serie de sumas y restas. Comenzamos:
1) Ana tiene ahorrados € 30:
[tex]x = 30\,EUR[/tex]
2) Un fin de semana sale al cine con unos amigos y se gasta € 7:
[tex]x = 30\,EUR-7\,EUR[/tex]
[tex]x = 23\,EUR[/tex]
3) Le compra un regalo que le cuesta € 12 a una amiga y paga el billete de tren, que le supone € 3:
[tex]x = 23\,EUR-12\,EUR-3\,EUR[/tex]
[tex]x = 8\,EUR[/tex]
4) Si al llegar a casa su padre le da sus € 15 semanales:
[tex]x = 8\,EUR + 15\,EUR[/tex]
[tex]x = 23\,EUR[/tex]
Si lo definimos como única operación con enteros, tenemos que:
[tex]x = 30\,EUR-7\,EUR-12\,EUR-3\,EUR+15\,EUR[/tex]
[tex]x = 23\,EUR[/tex]
A Ana le queda 23 €.
Can someone explain slope intercept form as simple as possible? Formula: y=mx+b
Ok y is your y value from any point on the graph m is your slope x is the x value of any point from the graph and b is your y intercept that is where the line cross in the y line that is the vertical line in the graph
Answer:
As simple as possible, it's a form of linear equations.
Step-by-step explanation:
The formula, y = mx + b, can be dissected to get the slope and y-intercept of a linear equation where:
m = slope
b = y-intercept
(x and y can be substituted for any point)
If you have any more questions, feel free to ask. Hope this helps!
Which fraction is equivalent to 0.6?
Three-tenths
One-third
Three-fifths
Two-thirds
Answer:
C. three- fifths
Step-by-step explanation:
Because if you multply 3/5 by 2 you get 6/10 Which is .6
I hope this helps!!!!
How do I find the correct slope on a graph?
Answer:
To find the slope of a line from a graph, first choose 2 points along the line and write down the X and Y coordinates for each. Next, find the rise by taking the difference between the 2 Y coordinates. If the line slopes up as it moves to the right, the rise will be positive. If it slopes down, the rise will be negative.
Step-by-step explanation:
IN THE FIGURE 5.24 TO THE RIGHT ABCD IS A RHOMBUS.SHOW THAT AC IS THE BISECTOR OF <BAD.
In any rhombus, the four sides are the same length.
Because of this, we know that
AD = ABCD = BCFurthermore, AC = AC due to the reflective property
Those three facts then allow us to prove triangle ACD is congruent to triangle ACB through the SSS congruence property. Then from CPCTC, we then know that angle DAC = angle BAC, which is enough to show that AC bisects the angle shown. The term "bisect" means "cut in half".