Answer:
A coordinate system is a two-dimensional number line, for example, two perpendicular number lines or axes. The center of the coordinate system (where the lines intersect) is called the origin. The axes intersect when both x and y are zero. The coordinates of the origin are (0, 0).
Step-by-step explanation:
what is the answer for x+7=2(x-15)
Answer:
x=37 Hope this helped <3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
x+7=2(x−15)
x+7=(2)(x)+(2)(−15)(Distribute)
x+7=2x+−30
x+7=2x−30
Step 2: Subtract 2x from both sides.
x+7−2x=2x−30−2x
−x+7=−30
Step 3: Subtract 7 from both sides.
−x+7−7=−30−7
−x=−37
Step 4: Divide both sides by -1
Answer:
[tex]\boxed {x = 37}[/tex]
Step-by-step explanation:
Solve for the value of [tex]x[/tex]:
[tex]x + 7 = 2(x - 15)[/tex]
-Use Distributive Property:
[tex]x + 7 = 2(x - 15)[/tex]
[tex]x + 7 = 2x - 30[/tex]
-Take [tex]2x[/tex] and subtract it from [tex]x[/tex]:
[tex]x + 7 - 2x = 2x - 2x - 30[/tex]
[tex]-x + 7 = -30[/tex]
-Subtract [tex]7[/tex] to both sides:
[tex]-x + 7 - 7 = -30 - 7[/tex]
[tex]-x = -37[/tex]
-Divide both sides by [tex]-1[/tex]:
[tex]\frac{-x}{-1} = \frac{-37}{-1}[/tex]
[tex]\boxed {x = 37}[/tex]
So, the value of [tex]x[/tex] is [tex]37[/tex].
The vertex of the graph of y = (x - 1)2.5 is
Answer:
vertex = (1, - 5 )
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
y = (x - 1)² - 5 ← is in vertex form
with (h, k ) = (1, - 5 ) ← vertex
Rena’s grandfather opened a savings account as a college fund for her. His initial deposit and the yearly simple interest rate are shown.
A college graduate is shown walking up stairs. The bottom step represents three thousand five hundred dollars. The value of the top step is unknown. The distance up the stairs is labeled four years. The simple interest rate is three point two five percent.
How much will Rena have in this account after 4 years?
Enter the correct answer in the box.
Answer:
Total amount (A) = $3,955
Step-by-step explanation:
Given:
Initial deposit (P) = $3,500
Rate of interest (r) = 3.25%
Number of years (t) = 4
Find:
Total amount (A)
Computation:
Simple interest = (p)(r)(t)
Simple interest = (3,500)(3.25)(4)
Simple Interest = $455
Total amount (A) = Initial deposit (P) + Simple Interest
Total amount (A) = 3,500 + 455
Total amount (A) = $3,955
The following angle measures could form a triangle
(a)
111º, 28°, 31°
A
True
B
False
(b) Explain why the angle measures form a triangle or do not form a triangle.
Answer:
False
Step-by-step explanation:
All the angles in a triangle must add up to 180 degrees. Let's test this with the values given:
[tex]111+28+31[/tex]
[tex]= 170[/tex]
These angles only add up to 170°. Therefore, the answer is false, and these measures do not form a triangle.
Add using the number line.
−9+6
Drag and drop the word Sum to the correct value on the number line.
Answer:
-3
Step-by-step explanation:
Angad was thinking of a number. Angad doubles it and gets an answer of 46.8.
What was the original number?
What is the value of the expression below when z=2
4z2-3z-4 please help
Garvin bought skis that cost $500 at the new store opening. The store gave him 60 days free credit. However, if he does not pay within 60 days they will charge him a 12 percent annual interest rate. How much interest will Garvin pay if he lets the account go for 90 days.
If Garvin lets the account go for 90 days, he will pay approximately $4.11 in interest.
If Garvin lets the account go for 90 days, he will exceed the 60-day free credit period by 30 days. This means he will be charged interest on the outstanding balance for those 30 days.
Since there is no information provided regarding any payments or partial payments made by Garvin within the 60-day period, we can assume that the full $500 is still outstanding.
Using the formula for simple interest:
Interest = Principal x Rate x Time
Principal = $500
Rate = 12% per year = 0.12
Time = 30 days / 365 days (since the rate is an annual rate)
Interest = $500 x 0.12 x (30/365) = $4.11 (rounded to two decimal places)
Therefore, if Garvin lets the account go for 90 days, he will pay approximately $4.11 in interest.
Learn more about the simple interest here:
brainly.com/question/22621039
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Which rule describes the relationship between the input and output pairs in the following table?
Input
Output
10
5
8
3
6.
1
Choose 1 answer:
Subtract 5 from the input to get the output.
Multiply the input by O. Then add 5 to the result to get the output.
Divide the input by 2. Then subtract 1 from the result to get the output.
Answer: subtract 5 from the input to get the output.
Step-by-step explanation:
Paul reads 5 pages in 4 minutes. How many pages can he read in 7 minutes?
What is an equation of the line that passes through the point (5,-5) and is parallel to the line x+5y=20
Answer:
y = [tex]-\frac{1}{5}[/tex]x - 4
Step-by-step explanation:
Given parameters:
Coordinates = (5, -5)
Equation of the line, x + 5y = 20
Unknown:
Equation of the line parallel to this= ?
Solution:
To find the equation of the line, we must first understand that parallel lines are lines having the same slope. They do not cross each other at any point.
The equation of any straight line is given as;
y = mx + c
y and x are the coordinates
m is the slope
c is the y- intercept
Now,
x + 5y = 20
Let us find the slope of this line;
5y = -x + 20
Divide through by 5;
y = [tex]-\frac{1}{5}[/tex]x + 4
The slope of the new line is the coefficient of x;
Slope = [tex]-\frac{1}{5}[/tex]
So, let us find the y-intercept of the new line;
-5 = [tex]-\frac{1}{5}[/tex] x 5 + c
-5 = -1 + c
c = -5 + 1 = -4
Now,
y = [tex]-\frac{1}{5}[/tex]x - 4
Answer: y = -(1/5)x - 4
Step-by-step explanation:
Use FOIL to determine the following Expression
Answer:
Undefined?
Step-by-step explanation:
x^2-12x+20=(x-2)(x-10)
x^2-12x+20=x^2-10x-2x-20
-12x+20=-12x-20
20=-20
40=0
who ever answers all these questions will get the brianlist and it has to be right please :)
0-Yellow
0.25-Green
-2-Blue
/-Green
π-Purple
I wish that answers your question
Thank You
does anyone know how to do addition method?
Answer:
it should be 10x+3y=30 if im not mistaken
Step-by-step explanation:
you just add straight down with corresponding variables
the sum of the second and fourth of four consecutive integers is 110
Answer:
The integers: 53, 54, 55, 56
Step-by-step explanation:
Consecutive integers increase by 1, so if x is the smallest one, then the numbers are:
x, x+1, x+2, x+3
the sum of the second and fourth: x+1 + x+3 = 2x+4
so: 2x + 4 = 110 ⇒ 2x = 106 ⇒ x = 53
So the integers we are looking for:
53, 54, 55, 56
The function f(x) = 100x + 300 represents the cost for the physics club to attend science weekend at
the local theme park where x represents the number of students who attend. At least 4 students but
no more than 9 students will attend the fieldtrip due to transportation and chaperone restrictions.
9. Is this a discrete or continuous situation? Explain.
Answer:
Discrete
Step-by-step explanation:
Given the function:
f(x) = 100x + 300
Where ;
x = number of attendees
At least 4 students but no more than 9 students will attend the fieldtrip due to transportation and chaperone restrictions
Range of attendees :
4 ≤ x ≤ 9
Is this a discrete or continuous situation?
It is a discrete because the number of students who will attend the science weekend are finite and countable.
The number of attendees range from:
4, 5, 6, 7, 8 and 9.
Subtracting fractions with unlike denominators 9/3-6/10
Answer:
2 2/5
Step-by-step explanation:
Select the compound inequality that does not belong with the other three.
a>4 or a 8
a>7 or a −9
Answer:
a>4 or a 9
Step-by-step explanation:
-9 is less than 7 thats why its a>4 or 8 a 9
Please help with the questions, and if you can explain them
I hope this helps
I also would appreciate brainless
PLEASE HELP UNIT ENDS I WILL GIVE BRAINIEST
Answer:
1 = 6,0
2= 2,3
Step-by-step explanation:
0.6x + 3 = 0.1x - 7 what value of x makes the question true
Answer:x=-20
Step-by-step explanation:
if a=1/8 and c=4, find b
Answer:
A=1\8
c=4
then b=2
i am only do this by getting fun and do for help other
The value of [b] if a = 1/8 and c = 4 will be 33/16.
What is the mean of two numbers?
The mean of two numbers [a] and [b] is -
[M] = (a + b)/2
Given is that a = 1/8 and c = 4.
We have the following values -
a = 1/8
c = 4
Therefore, we can write the value of [b] as -
b= (1/8 + 4)/2
b = (33/8)/2
b = 33/8 x 1/2
b = 33/16
Therefore, the value of [b] if a = 1/8 and c = 4 will be 33/16.
To solve more questions on mean, visit the link below-
https://brainly.com/question/27270417
#SPJ2
-3x + 4=6x-5 solve for x
Step-by-step explanation:
[tex] -3x + 4=6x-5\\\\6x+3x=4+5\\\\9x=9\\\\x=\sf{\dfrac{9}{9}}\\\\X=1[/tex]
I really Need Help..
Bob rented a truck for one day. There was a base fee of $18.99, and there was an additional charge of 75 cents for each mile driven. Bob had to pay $159.24
when he returned the truck. For how many miles did he drive the truck?
Answer:
1.87 miles
Step-by-step explanation:
[let's say x = how many miles]
18.99 + 75x = 159.24 [write out the equation]
-18.99 -18.99 [subtraction property of equality]
75x = 140.25
___ ____ [division property of equality]
75 75
x = 1.87
I hope this helps ! :)
11. Jack and Jill are going tubing and it costs $50 for the first 2 hours to rent the tubes and $20 for each
additional hour. If they have $100 to spend, at most, how many hours can they rent the tubes? Set up an inequality and
solve. Don't forget to define the variable solve. DONT forget to define the variable PLEASE THIS IS DUE TODAY!
Answer:
10 dollars left, four hours of tubing
Step-by-step explanation:
What is the mean? 20,22,25,28,29,30,33,34 ( Show work )
Please help and thanks.
Answer:
27.6
Step-by-step explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Answer:
27.625
Step-by-step explanation:
you need to add all those numbers and then divide your answer by the amount of numbers there are
20+22+25+28+29+30+33+34 =221
221÷8
How many angles are supplementary to the angle of 100 degrees?
Answer:
I think its 2 good luck
Step-by-step explanation:
Answer:
100 degrees and 80 degrees are supplementary angles
Step-by-step explanation:
2 angles are supplementary if they add up to 180 degrees
The density of ice is:
· less than that of water
· equal than that of water
· greater than that of water
Write a system of linear equations that has (-4, 8) as the solution. Once you have made your system of equations, solve it algebraically to show that you do indeed get the solution (-4, 8).
Answer:
See below
Step-by-step explanation:
(-4, 8) has to be the solution.
1st equation: -4x+8y = 1
2nd equation: 8x - 4y = 1
These should work. Do the matrix-substitution combo method to see:
-4 8 1
.8 -4 -1
Reduce and and matrix-substitution combo:
1 0 -4
0 1 8
The reduced eckerd form of the matrix shows that the solutions are (-4, 8)
Therefore it -4x + 8u = 1 and 8x - 4y = 1 are the two equations for the system.