Answer:
15
Step-by-step explanation:
20% is 1/5
75*1/5=75/5=15
A meal costs $30 before tax and tip. There is a 7% sales tax. After the tax, a 20% tip is added. What is the total after tax and tip?
Answer:
The total is $38.1
Step-by-step explanation:
The tax is $2.1, The tip is $6.
Percentage is the part of the whole expressed in the fraction of hundred.
The total cost of the meal after the tip and tax is $38.1.
What is percentage of a number?
Percentage of a number or ratio expressed in the form of fraction of hundred.
Given information-
The total cost of meal before tax and tip is $30.
The total sales tax is 7%.
The tip added to the cost of meal is 20%.
As, the total sales tax is 7% and cost of the meal is $30. Thus the total sales tax amount is,
[tex]s_t=30\times\dfrac{7}{100} \\s_t=2.1[/tex]
Thus the amount of sales tax is 2.1.
As the the tip added to the cost of meal is 20% and the cost of the meal is 32.1 after the tax. Thus the amount of meal after the 20 % tip is,
[tex]s_t=30\times\dfrac{20}{100} \\s_t=6.00[/tex]
The amount of the tip of the meal after the tax is $6.00.
The cost of meal after the tip and tax is,
[tex]C=30+2.1+6\\C=38.1[/tex]
Hence the total cost of the meal after the tip and tax is $38.1.
Learn more about the percentage of a number here;
https://brainly.com/question/19247356
Jamie pays $25 to enter a water park. He must pay $5 per hour to rent a locker to store his
personal items. Which algebraic expression represents the situation? (17.8)
o 5h + 25
O 25h + 5
O 5h. 25
O 25h. 5
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Answer:
5h+25
Step-by-step explanation:
Jamie pays $25 and $5/h so 5h+25
A store increases the price of a sweater from $20 to $22.
What is the percent of increase?
1. 0.1
2. 0.1
3. 2
4. 9
5. 10
6. 20
The percent of increase is 10% or 5. If you multiply 20 x 0.1, you get 2. Then, you add 20 and 2 together to result with $22. Therefore, the answer is 10% or a 10% increase.
(20 PTS) WILL GIVE BRAINLIST
Which statement best describes the area of the triangle shown below?
A coordinate grid is shown with a triangle. The base is 4 units, and the height is 4 units.
It is one-half the area of a rectangle of length 4 units and width 2 units.
It is twice the area of a rectangle of length 4 units and width 2 units.
It is one-half the area of a square of side length 4 units.
It is twice the area of a square of side length 4 units.
Answer: 3rd one I think
Step-by-step explanation: I had smth like this
Answer:
You got it right! The answer is [A].
Step-by-step explanation:
Visualize a rectangle 4 units long and 2 units wide. Doesn't each part of the triangle seem to be a half of different parts of the rectangle?
Select the equation that is true.
Answer:
you didnt attach anything
Step-by-step explanation:
please help
this is due at noon so anyone who knows this help me.
Answer:
70x+4^2+3
Step-by-step explanation:
A recipe for grape Gatorade calls for 1 1/2 quarts of sparkling water and 3/4 quart of grape juice.
1. How much sparkling water would you need to mix with 9 quarts of grape juice?
(Please help)
Answer: 3 1/2
Step-by-step explanation:
Yes
Answer:3 1/2
Step-by-step explanation:
Here is a list of numbers:
10, 3, -2, 19, -19, 4, 13, 6, 7
State the median.
Answer:
the answer is 6
Step-by-step explanation:
Walking Robert walks 7 blocks east from his home and arrives at his favorite restaurant. When he arrives, he discovers that he dropped his wallet along the way. He retraces his steps for 5 blocks until he finds his wallet. An expression for how many blocks east Robert is from his home after finding his wallet is the sum 7+(−5).
Answer:
2 block east from home
Step-by-step explanation:
Given an expression for how many blocks east Robert is from his home after finding his wallet as the sum 7+(−5),
Simplifying the given expression
7+(-5) = 7-5 (note that the product of a plus and minus sign will give a minus sign)
7-5 = 2
Hence Robert will be 2 block east from home
please help for bainlest
Answer:
[tex]\frac{5}{12}[/tex]
Step-by-step explanation:
[tex]\frac{3}{4} -\frac{1}{3}[/tex]
Find the common denominator and multiply each side by that number
[tex]\frac{9}{12} -\frac{4}{12}[/tex]
[tex]\frac{5}{12}[/tex]
For bolded part in explanation: 4·3=12 3·3=9
3·4=12 1·4=4
Which of the following is the point-slope form of the equation of the line with slope 4
that crosses the point (1, 3)?
Oy-1= 4(x – 3)
Oy+1= 4 (2+3)
Oy-3= 4(x - 1)
Oy+3 = 4(x+1)
Answer:
Third option
[tex]y-3=4(x-1)[/tex]
Step-by-step explanation:
Equation of straight line in point slope form is given as
[tex]y-y_1=m(x-x_1)[/tex]
Here
slope=m=4 and [tex](x_1, y_1) = ( 1, 3 )[/tex]
Equation of straight line having slope 4 and crossing from point (1, 3) is given as
[tex]y-3=4(x-1)[/tex]
-8d - 5d +7d=72 what is the answer i am completely lost
Answer:
d=-12
Step-by-step explanation:
hope this helps!
Review the incomplete steps in the derivation of the tangent sum identity.
A 2-column table with 5 rows. Column 1 has entries Step 1: Original expression, step 2: rewrite using the definition of tangent, step 3: apply the sine sum identity and cosine sum identity, step 4: question mark, step 5: simplify using the definition of tangent. Column 2 has entries tangent (x + y), StartFraction sine (x + y) Over cosine (x + y) EndFraction, StartFraction sine (x) cosine (y) + cosine (x) sine (y) Over cosine (x) cosine (y) minus sine (x) sine (y) EndFraction, blank, StartFraction tangent (x) + tangent (y) Over 1 minus tangent (x) tangent (y) EndFraction.
Which action can be taken to the expression in Step 3 to give an expression for Step 4?
divide both the numerator and denominator by sin(x)sin(y)
divide both the numerator and denominator by sin(x)cos(y)
divide both the numerator and denominator by cos(x)sin(y)
divide both the numerator and denominator by cos(x)cos(y)
Answer:
D divide both the numerator and denominator by cos(x)cos(y)
Step-by-step explanation:
just took test
The derivation of tangent sum identity taken to the expression in Step 3 to give an expression for Step 4 is option D; divide both the numerator and denominator by cos(x)cos(y).
What is trigonometric identity?The trigonometric identities is the relationship between the different trigonometric ratios.
These trigonometric identities are the basic formulae that are true for all the values of the reference angle.
For the given situation, the derivation for the tangent sum identity is given in the table below.
The derivation follows the steps,
[tex]\dfrac{sin (x+y)}{cos (x +y)}[/tex]
we know that,
sin (x + y) = sin x cos y + cos x sin y
cos (x + y) = cos x cos y - sin x sin y
Substitute;
[tex]\dfrac{sin x cos y + cos x sin y}{cos x cos y - sin x sin y}[/tex]
Divide each term by cos x cos y
[tex]\dfrac{\dfrac{sin x cos y}{cos x cos y} + \dfrac{cos x sin y}{cos x cos y} }{\dfrac{cos x cos y}{cos x cos y} - \dfrac{sin x sin y}{cos x cos y} }[/tex]
Now, [tex]\dfrac{tan x + tan y}{1 - tan x tan y}[/tex]
Hence we can conclude that the derivation of tangent sum identity taken to the expression in Step 3 to give an expression for Step 4 is option D; divide both the numerator and denominator by cos(x)cos(y).
Learn more about trigonometric identity here;
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Solve for d.
2 = 2(d - 7)
Answer:
should be 6to make is one so you can multiply it by 1 to get the same number
Step-by-step explanation:
Answer:
D = 8
Step-by-step explanation:
distribute
2 = 2d - 14
add 14 to both side
16 = 2d
divide both sides by 2
8 = d
d = 8
can I get brainliest ?
what is 8x3 and 7x8 can you please answer thisplease
Answer:
24 and 56
Step-by-step explanation:
8*3=24
7*8=56
100 POINTS! SOLVE FOR X. PIC ATTACHED. Random answers will be reported.
Answer:
x = 29Step-by-step explanation:
The angles (2x- 10) and (4x+ 16) are consecutive interior angles and therefore are corresponding
Corresponding angles sum to 180
(2x - 10) + (4x + 16) = 1806x + 6 = 1806x = 174x = 174/6x = 29What is the y-intercept in this equation?
6x + 3y = 24
Answer: y=−2x+8
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Let's rewrite this in slope intercept form, and isolate y on the left side. First, subtract 6x from both sides:
3y = 24 - 6x
Then divide both sides by 3:
y = -2x + 8
Now that it's in y = mx+b form, we can see that the slope is -2, and the y intercept is 8.
Hope this helps!
Someone help me plz
help me please quickly
Answer:
(1) 4
Step-by-step explanation:
Isolate x.
[tex]\frac{x-2}{3}[/tex] + [tex]\frac{1}{6}[/tex] = [tex]\frac{5}{6}[/tex]
[tex]\frac{x-2}{3}[/tex] = [tex]\frac{5}{6}[/tex] - [tex]\frac{1}{6}[/tex]
[tex]\frac{x-2}{3}[/tex] = [tex]\frac{2}{3}[/tex]
[tex]\frac{x-2}{3}[/tex] × 3 = [tex]\frac{2}{3}[/tex] × 3
x - 2 = 2
x = 2 + 2
x = 4
Mr. Tang gives a math test worth 90 points that contain 25 questions. Multiple-choice questions are worth 3 points and word problems are worth 4 points. How many of each type of question are there?
Answer:
m=10
w=15
Step-by-step explanation:
m + w = 25
3m + 4w = 90
Let's do substitution, first by solving the first equation for m.
m = 25 - w
Substitute!
3(25 - w) + 4w = 90
75 - 3w + 4w = 90
w = 15
m = 25 - 15 = 10
List 4 true angle facts about the illustration created by
AD intersects FK at point M.
Can someone tell me if this is correct and if not tell me how to put it plzzzzzzzz
Four friends share 10 fruit bars equally. How many fruit bars does each friend get?
Answer:
2.5
Step-by-step explanation:
10 / 4 = 2.5
What is the slope of the line that contains these points
Answer:
slope is 5 hope it helps lol lol lol lol
Miguel designs a square garden. Each side length is 3x + 5. Write an expression to find the perimeter of Miguel’s garden.
Answer:
12x+20
Step-by-step explanation:
Perimeter of a garden = 4s, s being the length of the side
In this case, s = 3x+5
substitute the equation
4(3x+5)
=12x+20
10. The hour hand of a clock is 8 cm long.
What area does it cover in:
(a) 12 hours?
△ABC∼△EFG.
Given m∠A=39° and m∠F=56°, what is m∠C?
Answer:
x=85
Step-by-step explanation:
let's angle c be x
39+56+x=180
95+x=180
x=180-95
x=85
Answer:
85 degrees
Step-by-step explanation:
In similar triangles, corresponding angles are congruent, or have the same measure.
Therefore, angle B must also be 56 degrees. In a triangle, there are 180 degrees.
A+b+c=180
39+56+c=180
c=85 degrees.
PLLZZZZZZZZZZZZ WILL GIVE BRAINLIEST!!
2b + 8 -5b + 3= -13 + 8b - 5 b=
2x + 7 - 5x + 8 = 3(5 + 6x) - 12x x=
2c - 3 = 2(6 - c) + 7c c=
Answer:
B=4
x=0 or x= 4/7
c= -5
Step-by-step explanation:
Answer:
b = 4
x = 1.75
c =2+i√101 7 , 2 − i √101 7
Step-by-step explanation:
Suppose that a person's peak blood alcohol level is0.04 (grams per 100 mL) and that this level decreases by 20% each hour.
Answer:
Step-by-step explanation:
incomplete question
Solve and explain how you did
Answer:
We conclude that:
[tex]-\left(9x\right)^0=-1[/tex]Step-by-step explanation:
Given:
[tex]-\left(9x\right)^0[/tex]
To determine:
Explain how to solve the expression
Solving the expression
[tex]-\left(9x\right)^0[/tex]
Apply the exponent rule
[tex]a^0=1,\:\quad \:a\ne \:0[/tex]
so the expression becomes
[tex]-\left(9x\right)^0\:=\:-1[/tex]
Therefore, we conclude that:
[tex]-\left(9x\right)^0=-1[/tex]