Answer:
Step-by-step explanation
it would be 80$ for a 20 minute phone call.
Answer:
Step-by-step explanation:
5=4
6=4.50
7=5
8=5.50
9=6
10=6.50
11=7
12=7.50
13=8
14=8.50
15=9
16=9.50
17=10
18=10.50
19=11
20=11.50
what are the solutions of the equation below
(x-2)(x+9)=0
Answer: {2, -9}
Step-by-step explanation: Think of these two binomials, x -2 and x + 9,
as two numbers that are multiplying together to equal zero.
In order for two numbers to multiply together to equal zero,
either one number or the other number must equal zero.
So for two binomials to multiply together to equal zero,
either one binomial or the other binomial must equal zero.
So we can split this problem up into two parts.
If (x - 2)(x + 9) = 0, then either x - 2 = 0 or x + 9 = 0.
On the left, add 2 to both sides and we have x = 2.
On the right, subtract 9 from both sides and we have x = -9.
For our final answer we use set notation.
So our answer is {2, -9}.
Answer:
2 and -9
Step-by-step explanation:
x-2=0
x=2
x+9=0
x=-9
A hotel manager found that his gross receipts for the day, including a 5% sales tax, were $1645.35. Find the amount of sales tax collected.
Answer:
The amount of sales tax collected is $78.35
Step-by-step explanation:
Percentages
The gross receipts for the day were $1645.35, including a 5% sales tax.
If a percentage is already included (added) to a certain quantity, then it's not the original quantity or 100%.
The problem states that the gross receipts already include a 5% sales tax, thus the receipts are 100+5=105% of the net sales.
This means the net sales were $1645.35 / 105 * 100 = $1567
Subtracting $$1645.35 - $1567 = $78.35 we get the amount of sales tax.
The amount of sales tax collected is $78.35
What is the value of x?
Answer:
1
Step-by-step explanation:
Can anyone help me please
Answer:
x=6
Step-by-step explanation:
Since they are corresponding angles, they are congruent to each other.
12x+3=11x+9
x+3=9
x=6
Divide. Write the quotient in lowest terms.
2 3/4 divided by 3
how much of earths surface is covered by earth ? write answer in scientific notation
Answer:
100% of earth is covered in earth, I'm starting to think you mistyped the question, cause it makes no sense
i got 4.9 and 40 i dont know if im right
Answer:
I got 40 aswell
Step-by-step explanation:
NEED HELP FINDING X ASAP
-16 I think I used an online algebra calculator want the link?
Given a 30-60-90 triangle with a hypotenuse of 11 mm solve for the other sides. (Explain)
Answer:
Need a calculator
Step-by-step explanation:
This will be hard to explain without the ability to draw an example.
The one thing you can memorize is SOH - CAH - TOA
This stands for SIN(Opposite/Hypotenuse), COS(Adjacent/Hypotenuse) and TAN(Opposite/Adjacent).
When you know the angles of a right triangle and at least one side length, you can get the length of all the sides.
So a right triangle has two legs (sides) and the hypotenuse. If you use the first angle ( 30 degrees) you can use the formulas above to calculate the side length.
Pick either the SOH or the CAH. Let's use SOH and write out the equation:
SIN(30 degrees) = Opposite Side divided by the Hypotenuse (11mm)
You can solve for the Opposite Side by multiplying both sides of the equal sign with 11mm. You end up with SIN(30 degrees) X 11m = Opposite Side.
So the side directly across from the 30 degree angle should be 5.5mm
You can do the exact same thing with the 60 degree angle.
SIN(60 degrees) = Opposite Side divided by Hypotenuse (11mm) OR
SIN(60 degrees) X 11mm = Opposite Side
This comes out to about 9.5mm
You can check the math by using the other equation CAH
Start with the 30 degree angle and solve for the adjacent side. This is the side that is touching the 30 degree angle. Equation will be
COS(30 degrees) X 11mm = Adjacent Side or about 9.5mm
The other equation will give you the side that is touching the 60 degree angle.
COS(60 degrees) X 11mm = Adjacent Side or 5.5mm
You can also use one last thing to check your math. The Pathagorean Theorem says in a right triangle [tex]A^{2}[/tex] + [tex]B^{2}[/tex] = [tex]C^{2}[/tex] where C is the hypotenuse and A and B are the two sides.
[tex]5.5^{2}[/tex] + [tex]9.5^{2}[/tex] should equal [tex]11^{2}[/tex]. Give or take a few decimal places, it's almost exactly 11 (10.977 to be exact).
Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at
a constant speed.
In kilometers, How far did Andre run in 60 minutes?
Garrett has one dollar less than three times as much money as Liz has. Together they have $179. What equation would you set up to find out how much Money Garrett has?
Answer:
1-x=179
Step-by-step explanation:
what is the equation of ( 1, 6) and (2, 3) and (4, 15).
Answer:
y = − 3 x + 9
Step-by-step explanation:
A cookie recipe calls for ¾ cups of sugar. The recipe makes 20 cookies. How much sugar is required to make 80 cookies
Answer:
So based on the given problem above, it says that, for one batch with 3/4 cup of brown sugar can make 6 dozen big cookies. If we are to make 15 dozen cookies, what we need to do is to divide 3/4 cup of brown sugar by 6 dozen, and we get 0.125. This means that per dozen, it is equivalent to 0.125 cup of brown sugar. If we multiply it by 15 dozens, we get 1.875 cup or 1 and 7/8 cup of brown sugar.
Answer:
3 cups of sugar.
Step-by-step explanation:
80/20 = 4 batches
3/4 cups x 4 = 3 cups of sugar
If the figure below is rotated a certain number of degrees,
the transformed figure will coincide with overlap) the
original.
Which of these rotations will not result in the transformed
figure coinciding with the original?
288°
90°
72°
-72°
__/5=9 the / is a divide sign
Answer:
45
Step-by-step explanation:
45/5=9
you hire movers to deliver your new couch. it weighs 60 kilograms. how much does it weigh in pounds
Answer:
132.277 if this isnt the right answer i just googled how many pounds is 60 kg
Step-by-step explanation:
How do I solve permutations and combinations?
Answer:
by formulas . you can solve permutations and combinations by formulas .
PLZ ANSWER QUICKLY
Write an equation that represents the line.
Use exact numbers.
Need help ASAP!! Question in photo.
Answer:
1.) angles 1 and 4. angles 5 and 8.
2.) angles 1 and 5. angles 3 and 7. angles 2 and 6. angles 4 and 8.
3.) angles 1 and 3. angles 5 and 7. angles 2 and 4. angles 6 and 8.
Step-by-step explanation:
Math
when j= -8 and k= 7, the value of the expression is
Answer: 539
Step-by-step explanation: PLATO and Edmentum
Expression will have a value of 116 for the specified values of j and k.
What is expression?Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.
Given an expression -4j + 12k
where given, j = -8
and k = 7
Substituting the values in the given expression
=> -4 * -8 + 12 *7
=> 32 + 84
=> 116
Therefore, the value of expression for the given values of j and k will be 116.
Learn more about expression here:
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Complete question:
when j= -8 and k= 7, the value of the expression -4j + 12k is_____.
This diagram shows the dimensions of a concrete piece used to build a deck.
What is the volume of the concrete piece?
Three-dimensional figure that could be formed by placing two rectangular prisms together to form an L shape where the longer part of the L is on the bottom and the shorter part of the L extends up from the left side. The longer part of the L has a length of 20 inches, a width of 9 inches, and a height of 9 inches. The shorter part of the L extends 10 inches above the longer part of the L and has a length of 5 inches.
Answer:
The student is wrong, the total area = 16 ft² + 20 ft²
Step-by-step explanation:
See the attached figure.
The shown figure is a composite area of:
1) A rectangle with length of 8 ft and width of 4 ft
2) A triangle of base (8 - 4 = 4ft) and height of ( 6 - 4 = 2 ft)
The area of the rectangle = length x width = 8 * 4 = 32 ft²
The area of the triangle = 0.5 base x height = 0.5 * 4 * 2 = 4 ft²
So, the total area = 32 + 4 = 36 ft²
OR
The figure can be consists of :
1) A square of side length of 4 ft
2) A trapezoid of height (8-4 = 4 ft) and the bases length is (6 and 4 ft)
So,
The area of the square = 4 * 4 = 16 ft²
The area of the trapezoid = 0.5 (6+4) * 4 = 5 * 4 = 20 ft²
So ,the total area = 16 + 20 = 36 ft²
So,
The student is distracted, he finds the area of total rectangle of sides 8 and 6 ft, he should subtract from it the area of the trapezoid of height 2 ft and bases of 4 and 8 ft
So, the student is wrong
The volume of the concrete piece is 1000 cubic inches.
What is the Volume?Volume is a measure of the amount of space that an object occupies. It is a three-dimensional measurement that is typically expressed in cubic units.
here, we have,
given that,
The given diagram shows a rectangular concrete piece with dimensions 5 inches, 10 inches, and 20 inches.
The volume of a rectangular prism can be calculated as:
V = l × w × h
Where "l" is the length, "w" is the width, and "h" is the height. So, for the concrete piece, the volume is:
V = 5 in. × 10 in. × 20 in.
= 1000 cubic inches.
Hence, the volume of the concrete piece is 1000 cubic inches.
To learn more about Volume, Visit
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f(x)=3x-1 Find f(-8)
Answer: y=-25
Step-by-step explanation:
Plug in -8 for x
3(-8)-1
-24-1
-25
Answer:
x= -25
Step-by-step explanation:
-8(3)-1=
-24-1=
-25
Write each as a algebraic expression:
1) The difference of five and half a number.
Answer:
5 - 1/2x
Step-by-step explanation:
Difference means subtraction
half means 1/2
number means x
A class of 340 students went on a field trip.
They took 8 vehicles, some cars and some
buses. Find the number of cars and the
number of buses they took if each car holds
5 students and each bus hold 55 students.
Answer: 2 cars and 6 buses.
Step-by-step explanation:
x + y = 8
5x + 55y =
5 times 2 = 10
plus
55 times 6 = 330
Add 330 plus 10 = 340!
If, on average, a person with a bachelor's degree earns $57,181 per year, how
much, on average, can a person with a master's degree expect to earn per
year?
O A. Less than $28,590
B. More than $28,590 but less than $57,181
C. $57,181
D. More than $57,181
Answer: D. More than $57,181
Step-by-step explanation:
Because a masters degree is higher than a bachelors degree, they should make more money
Answer: D
Step-by-step explanation: Because a master’s is higher than a bachelor’s so master’s would get more money.
solve the fraction below 2 4/5 - 5/8
Answer:
I believe its 2.175 (as a decimal)
or 2 7/40 ( as a fraction)
school sold 2 adult tickets and 10 child tickets for a total of $56. The school took in $52 on the second
The school that Elisa goes to is selling tickets to a fall musical. On the first day of ticket sales the
second day by selling 4 adult tickets and 5 child tickets. What is the price each of one adult
ticket and one child ticket?
Answer:
x+y=4+8=12
$12 for one of each
or if you mean indivually (the wording confused me)
$4 for child, $8 for adult
Step-by-step explanation:
x=adult
y=child
2x+10y=56
4x+5y=52
iin order to be able to subtract values and find x and y im going to multiply 4x+5y=52 by two and get 8x+10y=104
8x+10y=104
-2x+10y=56
6x=48 divide each side by 6
x=8
plug 8 back into an equation to find cost of y
2(8)+10y=56
-16 -16
10y=40
y=4
Ms.smith has 132 stickers to give to her students. she has 25 students. if she gives the same number of stickers to each of her students how many stickers will she have left over?
Answer:
Step-by-step explanation:
If Ms. Smith hands out 130 of her stickers between all 5 of her students each will have 26. Which means she will have 2 remaining
is it true or false?
Answer:
TRUE
Step-by-step explanation:
Please help me out here this is kinda confusing.
Answer:
a
Step-by-step explanation:
because the area is 0.25 and she needs 100 so 100 x 0.25.