Answer:
25GB was used that month
Step-by-step explanation:
Here, we want to calculate the GB used for the month.
Since we have $59.99 for 20GB, then the extra that brought the bill to $75.99 must have been from the beyond charges.
The extra charges is thus $75.99 - $59.99 = $20
Now, since $4 is charged as extra and we have a total of $20, the number of extra GB is thus 20/4 = 5
So the total GB for that month is 20 + 5 = 25GB
In 2010, 465 students went to a certain school. In 2014, 372 students went to the same school by what percent did the number of students decrease
Answer:
20% decrease
Step-by-step explanation:
New value =
465 - Percentage decrease =
465 - (20% × 465) =
465 - 20% × 465 =
(1 - 20%) × 465 =
(100% - 20%) × 465 =
80% × 465 =
80 ÷ 100 × 465 =
80 × 465 ÷ 100 =
37,200 ÷ 100 =
372
Hope this helps!
Answer:
20
Step-by-step explanation:
he or she is correct
Decide whether the given ordered pair is a solution of the system.
x+y=5
X-y= 3
; (4,1)
Is the given ordered pair a solution to the given system?
A. Yes, because (4,1) makes both equations true.
B. No, because (4,1) makes neither equation true.
C. No, because (4,1) only makes the equation x + y = 5 true.
D. No, because (4,1) only makes the equation x-y = 3 true.
Answer:
A. it is true for both equations
Step-by-step explanation:
x = 4 and y = 1
sub these values into the equations
4 + 1 = 5
4 - 1 = 3
evaluate the expression if x =6 and y =7. 3x+2y
The value of the expression 3x + 2y when x =6 and y =7 is 32.
What is an expression?An expression is a combination of some mathematical symbol such that an arithmetic operator and variable such that all are constrained and create an equation.
In other meaning, expression is very useful to determine the end or root value of constraint.
As per the given expression, 3x + 2y
Put x = 6 and y = 7 as,
3(6) + 2(7) = 18 + 14 = 32
Hence "The value of the expression 3x + 2y when x =6 and y =7 is 32".
To learn more about expression,
https://brainly.com/question/14083225
#SPJ2
find an equation in slope-intercept forma for the línea with slope -12 and y-intercept=1/2
Answer:
Option D
Step-by-step explanation:
Slope intercept is:
[tex]y=mx+b[/tex]
m - slope
b - y-intercept.
The slope in the question is -12. The y-intercept is 1/2.
Plug in the values:
[tex]y=mx+b\rightarrow \boxed{y=-12x+\frac{1}{2}}[/tex]
Hope this helps.
Answer:
Slope-intercept form:
[tex]y = -12x + \frac{1}{2}[/tex]
Step-by-step explanation:
-Since you already have the slope and the y-intercept, all you need is to apply them to a slope-intercept form:
Slope: [tex]-12[/tex]
y-intercept: [tex]\frac{1}{2}[/tex]
-Slope-intercept equation:
[tex]y = mx + b[/tex]
(where [tex]m[/tex] represents the slope and [tex]b[/tex] represents the y-intercept)
-Applying to slope-intercept form:
[tex]y = -12x + \frac{1}{2}[/tex]
And were done.
1. Which equation results in this table of values?
Input (x)
1
3
5
10
Output (y)
3
7
11
21
O A. Output = Input + 2
O B. Output = 2 · Input + 2
O C. Output = 2 · Input +1
OD. 2. Input
Output + 1
Answer:
A,is the write answer .......
What is (-9)with exponent of 2
Hey there! I'm happy to help!
An exponent of two means you square the number. So, we have -9×-9. Two negatives makes a positive, so our answer is 81.
Have a wonderful day! :D
What is the answer to -3 + 2 =
Answer:
-1
Step-by-step explanation:
when adding a negative and a positive you can turn it to subtraction if it makes it easier for you.
-3+2=2-3
2-3=-1
-3+2=-1
make sense?
PLEASE HELP AS SOON AS POSSIBLE! LOOK AT THE IMAGE BELOW
Answer:
The answer is 50 squared.
Explanation:
This number is the only irrational number given.
Write an equation that approximates the depth y of water in the aquarium x weeks after you fill it.
Answer:
y = -2x + 22
Step-by-step explanation:
You fill an aquarium with water, the water is 22 inches deep. The water evaporates at 2 inches per week. Write an equation that approximates the depth y of water in the aquarium x weeks after you fill it.
Answer: The problem above represents that of a linear function. The equation of a linear function is given by:
y = mx + b, where y is the dependent variable, x is the independent variable, m is the rate of change and b is the initial value of y when x = 0.
From the problem, the independent variable is the number of weeks and the dependent variable is the depth of water, hence y = depth of water and x = weeks after you fill it.
The rate = 2 inches per week, since it evaporates (decreases), hence m = rate of change = -2. Also, at 0 weeks (x = 0), the depth (y) = 22 inches, therefore b = 22. Using the equation for linear function, we get:
y = -2x + 22
Which of the following is proper notation to describe the set of all letters in the alphabet?
{a, b, c, . . ., z}
(a, b, c, etc.)
a through z
none of the above
On the graph of the equation 3x + 2y = 18, wgat is the value of the y-intercept
Answer:
the answer is 9y
Evaluate the expression for the given value of the variable X-3/10 for x= 3/7
Answer:
9/70
Step-by-step explanation:
X-3/10 for x= 3/7
3/7-3/10
9/70
A chicken farmer also has cows for a total of 30 animals, and the animals have 66 legs in all. How many chickens does the farmer have?
Answer:
27 chickens
Step-by-step explanation:
A chicken farmer also has cows for a total of 30 animals
Both animals have a total of 66 legs
Let a represent the number of chicken
Let b represent the number of cows
a + b= 30........equation 1
Since a chicken has only two legs and a cow has four leg then, the expression can be represented as
2a + 4b= 66........equation 2
From equation 1
a + b= 30
a = 30-b
Substitute 30-b for a in equation 2
2a + 4b= 66
2(30-b) + 4b= 66
60 - 2b + 4b= 66
60 + 2b= 66
2b= 66-60
2b= 6
b= 6/2
b= 3
Substitute 3 for b in equation 1
a + b = 30
a + 3=30
a= 30-3
a= 27
Hence the farmer has 27 chickens
The sets B and F are given below.
B={1,2,4,6,7)
F=(-2,-1,1,5,6)
Find the union of B and F.
Find the intersection of B and F.
Write your answers using set notation in roster form).
Answer:
(BuF) = -2,-1,1,2,4,5,6,7
(BnF)= 6
-3а- 8+2а = 13
How do you solve this (like terms)
Answer:
a = -21
Step-by-step explanation:
-3a +2a -8 = 13
- a-8 = 13
-a -8 -13 = 0 ( the sign changes from +13 to -13 )
-8 -13 = a ( the sign of a changes from -a to + a ) -21 = a
Follow me!
Help me plz and can you show your work plz
I really need help it’s due today
Evaluate: n + 52 for n=3
Answer:
55
Step-by-step explanation:
We replace 3 for n:
3 + 52 = 55
what is 752988 rounded to the nearest thosand And 23081 rounded to the nearest ten thosand?
What is the quotient? StartFraction (negative 3) Superscript 0 Over (negative 3) squared EndFraction
Answer:
1/9
Step-by-step explanation:
The applicable rule of exponents is ...
a^0 = 1 . . . . a ≠ 0
__
[tex]\dfrac{(-3)^0}{(-3)^2}=\dfrac{1}{(-3)(-3)}=\boxed{\dfrac{1}{9}}[/tex]
Answer:
1/9
Step-by-step explanation:
Solve for x.
5x - 6 = -46
Does any one know the answer?
Answer:
X= -8
Step-by-step explanation:
Subtract 6 on both sides
that leaves you with
5/5=-40/5 The 5s cancel out leaving you with -40/5 and -40 divided by 5 is -8
Answer:
x= -8
Step-by-step explanation:
5x - 6 = -46 original equation
5x = -40 added 6 to both sides
[tex]\frac{5x}{5} = \frac{-40}{5}[/tex] divide both sides by 5
x = -8 solution
What is the truth value of the following statement? square root of 25 >- 5 or 3 grater than or equal to 3.
Answer:
the Square root of 25 = 5
Step-by-step explanation:
It's greater than -5 and greater than 3 by two.
Hopefully this helps.
HELPP!! Jason and his parents reside in Florida and have a pre-paid college plan. They are
researching college options for Jason. What would keep education costs the lowest?
A money market account
A state university
A private school
A Roth IRA
Answer:
A money market account
Step-by-step explanation:
Most money market accounts can be opened for between $500 and $2,500 initially, and many will require the same amount for a minimum balance or you will pay penalties or maintenance fees. 5. Contact Banks that Meet Your Requirements.
m∠D=18°. Find the measure of the supplement of ∠D.
Answer:
162
Step-by-step explanation:
because
solve for b^2
a^2+b^2=c^2
Answer:
here the answer b^2=c^2-a^2
Step-by-step explanation:
a^2+b^2=c^2
let a^2 comes to the other side
b^2=c^2-a^2
mark me as brainliest plllyyzz
Maria is starting a small business selling flowers. She has to pay $150 for a vendor’s permit. Each bouquet cost her $7 and she sells them for $15. How many bouquets must Maria sell to break even?
Answer:
18.75
Step-by-step explanation:
might not be 100% right
The perimeter of a chalkboard is 16 feet. The area is 15 square feet. What are the dimensions of the board
Answer:
5 by 3
Explanation:
15 = 5 x 3
16 = 5 + 5 + 3 + 3
The dimensions of the board is either 5 by 3 square inches or 3 by 5 square inches.
What is a rectangle?The rectangle is 4 sided geometric shape whose opposites are equal in lengths and all angles are about 90°.
here,
let the length of the board be x, and width be w,
The perimeter of the rectangle board = 16
2 (l + w) = 16
l + w = 8
l = 8 - w
Now,
area of the board = 15
l × w = 15
(8 - w)w = 15
8w - w² = 15
w² -8w + 15 =0
(w - 3)(w -5) = 0
So,
w = 3 or 5
Now,
Lengths = 8 - 3 or 8 - 5
= 5 or 3
Thus, the dimension of the board either 5 by 3 square inches or 3 by 5 square inches.
Learn more about rectangles here:
brainly.com/question/15019502
#SPJ1
How do you write 2x^3 + 2x^2 - 3 as a trinomial?
Answer: =
6x^2−5x−6
Step-by-step explanation: Multiply each term in one expression times each term in the other, then simplify by combining like terms.
Here are the like terms : =(3x+2)(2x−3)=3x(2x+3x(−3)+2(2x)+2(−3)
= 6x^2−9x+4x−6
=6x2−5x−6
A board is 12 feet long. If the board is divided into 12 equal sections, how long is each section?
A. 1 foot
B. 6 inches
C. 144 inches
D. 2 feet
which is greater 5/6 or 1/3
Answer:
1. >
2.<
3. =
4. >
5.>
6. =
7. >
8. <
9. =
10. <
11. <
12. =
13. 3/5, 2/3, 0.65
14. 7/8, 8/9, 0.98
15. 1/12, 0.2, 1/4
Step-by-step explanation:
-5 (-1 + 6)need help
Answer:
-25
Step-by-step explanation: When you multiply to negatives together you get a positive thus being shown in the problem -5 times -1 =5 then you multiply 6 times -5 and whenever you multiply a positive number by a negative you'll always get a negative number so 6 times -5 =-30 then you add 5 and -30 and you get -25. I hope this is right :D
