Nine times the sum of a number and 6 equals 7. nown number
At a restaurant, the amount of your bill before taxes and tip is $19.83. A 6% sales tax is applied to your bill, and you leave a tip equal to 19% of the original amount. Use mental math to estimate the total amount of money you pay to the nearest dollar.
Answer:
$24.7875
Step-by-step explanation:
Step one:
given data
your bill before taxes and tip is $19.83
6% sales tax
tip equal to 19% of the original amount.
Required
The total expenses
Step two:
let the total expenses be y
let us calculate the cost of tax and the tip
Tax
=6/100*19.83
=0.06*19.83
=$1.1898
Tip
=19/100*19.83
=0.19*19.83
=$3.7677
Total
Y= 19.83 +1.1898 +3.7677
Y= $24.7875
ACTIVITY #1:
A. Write each number in scientific notation.
1. 38,000,000,000
4.0.000000001
2. 2,016,000,000,000 5. 0.000000001007
3. 0.000000000091306
Answer:
baaababababbabababab
Question Down below.
Answer:
there equal
Step-by-step explanation:
the absolute value of 3 is 3
and the absolute value of -3 is 3
hope this helps
let me know if you need help with anymore
Have a great day!
f ( x ) = x/3 -2 f (42 )
Answer:
f(42) = 12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = x/3 - 2
f(42) is x = 42
Step 2: Evaluate
Substitute in x: f(42) = 42/3 - 2Divide: f(42) = 14 - 2Subtract: f(42) = 12why is the graph of the rose curve r=4cos2theta
Answer:
The correct answer is B.
Step-by-step explanation:
Any point can be represented in polar form by using the notation:
[tex]A = (r, \theta)[/tex] (1)
And any polar function must satisfy the following definition:
[tex]r = f(\theta)[/tex]
Let [tex]r(\theta) = 4\cdot \cos 2\theta[/tex], where [tex]r[/tex] is the radial distance of any point of the curve from origin and [tex]\theta[/tex] is the direction of any point of the curve with respect to +x semiaxis, measured in radians.
Finally, we proceed to graph the function with the help of a graphing tool and attach the result.
Besides, we must remember that cosine is a bounded function, which means that domain and range in rectangular coordinates are represented by:
[tex]Dom\{f\} = [-4,4][/tex], [tex]Ran\{f\} = [-4,4][/tex]
Then, the correct answer is B.
Simplify -6(-4x + 8y)
Answer:
24x - 48y
Step-by-step explanation:
A perfectly spherical scoop of ice cream has a surface area of 36π cm2 and the same diameter as the open end of the ice cream cone it rests on. The cone is 11 cm tall. If the ice cream melts into the cone, what volume of ice cream will overflow?
Answer:
9.43 cm³
Step-by-step explanation:
Given that the surface area of the spherical scoop is 36π cm², we find its radius. The surface area of a sphere, A = 4πr² where r = radius
36π cm² = 4πr²
r² = 36π cm²/4π
r² = 9 cm²
r = √(9 cm²)
r = 3 cm
So, the volume of the spherical scoop of ice cream is thus V = 4πr³/3
= 4π(3 cm)³/3
= 4π(9 cm³)
= 36π cm³
The volume of the ice cream cone is V' = πr²h/3 where r = radius of cone = radius of spherical scoop = 3cm and h = height of cone = 11 cm
V' = π(3 cm)² × 11 cm/3
= 9π cm² × 11 cm/3
= 33π cm³
So, the volume of ice cream that will overflow is thus V - V' = 36π cm³ - 33π cm³
= 3π cm³
= 9.43 cm³
please help!! I will give brain liest for whoever answers them right
Answer:
1 - 6x+8
2 - 4y+5
3 - 7g+5
4 - 2w+4
5 - 14d-12
6 - -3r+5
7 - 8
8 - -10p+10
For each 13 mm of coloured fabric Gordon uses to make his curtains he also uses 1 cm of white fabric express the amount of white fabric to coloured fabric as a ratio in its simplest form
Answer:
[tex]\frac{10}{13}[/tex]
Step-by-step explanation:
In the question, the units of the length of both colored and white fabrics are not the same. So, convert the unit of the white fabrics into mm.
The length of colored fabric used = 13 mm.
The length of white fabric used = 1 cm
= 10 mm
To express the white fabric to colored fabric, we have;
[tex]\frac{length of white fabric used}{length of colored fabric used}[/tex] = [tex]\frac{10mm}{13mm}[/tex]
= [tex]\frac{10}{13}[/tex]
Thus, the amount of white fabric to colored fabric can be expressed as[tex]\frac{10}{13}[/tex].
A group of friends spent 1, 0, 2, 3, 4, 3, 6, 1, 0, 1, 2, and 2 hours online last night. What are the 1st and 3rd quartiles for this set of data?
A line passes through the points (2, –2) and (–6, 2). The point (a, –4) is also on the line. What is the value of a?
A coordinate plane.
–6
–1
1
6
Answer:
the answer is option 4: 6
Step-by-step explanation:
Which ordered pair is a solution of the equation?
52 - 2y = 18
Answer: y=17
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
52−2y=18
52+−2y=18
−2y+52=18
Step 2: Subtract 52 from both sides.
−2y+52−52=18−52
−2y=−34
Step 3: Divide both sides by -2.
−2y
−2
=
−34
−2
y=17
a/k + b = c/k make k as a subject
Answer:
By "make k as a subject", I assume you mean to solve for k?
If that is the case, then the answer is:
k = (c - a) / b
Step-by-step explanation:
Let's solve for k
a/k + b = c/k
Multiply both sides by k:
a + bk = c
Group terms containing k on the left:
bk = c - a
Divide both sides by k:
k = (c - a) / b
What's the rate of inflation, this one will be worth 100 points for whoever gives me the correct answer and brainliest (If I can spell)
Step-by-step explanation:
it is 4.5% rate in inflation
I think it helps you
Answer:
a 4.5 % rate in change
Step-by-step explanation:
Can somebody plz help answer these questions (only if u know them)
Thanks so much!! :D
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST:DD
Answer:
22=90 23=15 24=60 25=0.75 26=70 37=$0.58
Step-by-step explanation:
22. So, we can divide 360 kmh by 4 hours
so 360/4 =90
So 90 kmh in 1 hr
23
So, we can divide 3 packages by $15
so 15÷3 = $5
So $5 per package
24 So, we can divide 720 m by 12s
So, 720/12= 60
60 m in 1 s
25
So, we can divide $4.50 by 6
So, we get $0.75
26
So, we can divide 210 words by 3 min
So, 210÷3=70
70 words per minute
27
So, we can divide 23.20 by 40l
So, 23.20÷40 = 0.58
$0.58
Select an expression equal to 6(4q + 8r)
Answer: B: 24q+48r
Step-by-step explanation: 6(4q+8r)
=(6)(4q+8r)
=(6)(4q)+(6)(8r)
=24q+48r
Which of the following is an arithmetic sequence?
A 0,3, 8, 15, 24, 35, -..
B. 9, 4, -1, -6, -11, -16,
C. 1, 3, 6, 10, 15, 21,
D. -1, 0, 1, 0, 3, 0, ...
b
Step-by-step explanation: i don know
Is the relation a function or no function?
Answer: I think is a function
Step-by-step explanation:
Please help everything you need is on the picture.
Factor x2 – 8x + 15.
Which pair of numbers has a product of ac and a sum of b?
What is the factored form of the trinomial?
Answer:
x^2-8x+15
X^2+(a+b)X+ac
=X^2-(5+3)X+(1)(15)
a+b=8
ac=15
=x^2-5x-3x+15
=x(x-5)-3(x-5)
=(x-3)(x-5)
Answer:
a) -3 and -5
a) (x - 3) (x - 5)
Step-by-step explanation:
Which matrix will always give a determinant of 0?
a matrix having all nonzero numbers
a matrix not being the identity matrix
a matrix not having equal rows
a matrix having two equal rows
Answer:
It's D, a matrix having two equal rows
Step-by-step explanation:
What is the slope of the line represented by the equation y = 4/5x-3?
Answer:
The slope is 4/5
Step-by-step explanation:
Hi can someone please help me with this question
Answer: B. 3x + 1/5
tom's pencil is longer than Ellen's pencil:
5x + 2/5 - (2x + 1/5) = 5x - 2x + 2/5 - 1/5 = 3x + 1/5 (cm)
Step-by-step explanation:
carlos earned 57 points on one section of a test and 26 points on the other section. Which equation expresses his total score.
HELP PLS BROOO
need help i can’t remember this !
Help with this question plzz
Answer:
I think it is 4 white and 3 blue
Step-by-step explanation:
Because they have 3 cups of white then 6 cups of white so i think they multiplied it. Then they have 4 cups of blue then 8 cups of blue. So if you multiply it, it will give you the answer. I hope this is right and it helped and can you mark me brainliest!!!!!!!!
What is the value of the expression
245-4) - 3 x (2+1)
7
19
51
1.75
Answer:
Step-by-step explanation:
(245 - 4) - 3 x (2 + 1)
241 - 3 x 3
241 - 9
232
or if u wrote the problem wrong
(45 - 4) - 3 x (2 + 1)
41 - 3 x 3
41 - 9
32
actually comment what the actual equation is and I'll solve that, bc I don't think you typed it right
I need some help ? Does anyone know this:)I’m new too this thats why im asking loll
Answer:
36
Step-by-step explanation:
area of rectangle =length x width
givens:
width=4 units
length=9 units
area=9x4=36 units squared
what is the decimal expansion of the following fraction 1/25
Answer:
0.04
Step-by-step explanation: