Answer:
329
Step-by-step explanation:
Kim ordered a few appetizers to share with friends. The total of her meal was
$29.53. She left $35 to cover the meal and the tip she left the waiter. What
percentage of the total is the tip?
Answer:
15%
Step-by-step explanation:
..
help pls !! Im awful with math and I already failed and this is a makeup test >-<
Answer:
29.4 degrees
Step-by-step explanation:
a = 53 cm = opposite side to the angle
b = 94 cm = adjacent side to the angle [tex]\alpha[/tex]
tan = opp/adjacent = 53/94 = 0.5638
[tex]\alpha[/tex] = inverse tangent of .5638 = tan⁻¹ (.5638) = 29.4₋⁰
Express the relationship between x + 2 and -2x + 8 as a single equation
Answer:
[tex]= -2x^2 +4x+ 16[/tex]
Step-by-step explanation:
From the given equation:
[tex](x+ 2 ) \ and \ (-2x +8)[/tex]
As a single equation, we have:
[tex]= (x + 2) \ \times \ ( -2x + 8) \ = 0[/tex]
open brackets
[tex]\implies -2x^2 +8x +(-4x) + 16[/tex]
[tex]= -2x^2 +4x+ 16[/tex]
Solve the system of equations. 10y - 11x = -4 - 2y + 3x = 4
Answer:
(4,4)
Step-by-step explanation:
The intersection point of 10y-11x=-4 and -2y+3x=4 is (4,4) on a graph.
As per linear equation, the solution of the given system of equations is x = 4, y = 4.
What is a linear equation?"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.
The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant."
Given system of linear equation is:
10y - 11x = - 4 ......(1)
- 2y + 3x = 4 ......(2)
Multiplying the equation (1) by 1 and Multiplying the equation (2) by 5 and then add both equations, we get:
10y - 11x = - 4
+ (- 10y) + 15x = 20
-------------------------
4x = 16
⇒ x = 4
Now, substituting the value of 'x' in the equation (2), we get:
- 2y + 3(4) = 4
⇒ - 2y + 12 = 4
⇒ - 2y = 4 - 12
⇒ - 2y = - 8
⇒ y = 4
Therefore, the solution of the given system of equations is x = 4, y = 4.
Learn more about a linear equation here: https://brainly.com/question/11897796
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What year will it be when the comet appears for the 43rd time?
2236
2243
2229
2257
Answer:
Im guessing it 2236?
Step-by-step explanation:
Drag the cards below to create an expression that is equal to
6/5 / * 5 6 pls help!!!
Answer:
6 divded by 5
Step-by-step explanation:
Someone help me out lol
Answer:
(1)+49
(x+7)^2
(2) +16
(x+16)^2
(3) +25/4
(x+5/2)^2
Answer:
see explanation
Step-by-step explanation:
To complete the square
add ( half the coefficient of the x- term )²
x² + 14x
= x² + 2(7)x + 49
= (x + 7)²
----------------------------------------
x² - 8x
= x² + 2(- 4)x + 16
= (x - 4)²
-----------------------------------------
x² + 5x
= x² + 2([tex]\frac{5}{2}[/tex] )x + [tex]\frac{25}{4}[/tex]
= (x + [tex]\frac{5}{2}[/tex] )²
What is not a multiple of 7
Answer:
34 is not a mulitple of 7
Steak Dinner: $10.59
Tax Rate: 7.75%
What is the final price of the product after a tax is applied?
(Show your work)
Answer: $11.41
Step-by-step explanation:
Will award if correct. Plz help
Answer:
f(x) = 4 · 4^x , f(x) = 4 · 2^x+2 , f(x) = 1/4 · 2^x+6
Step-by-step explanation:
Substitude x with a number.
Please give me Brainliest :)
Help :((((((((((((((((
Answer:
k = 51
Step-by-step explanation:
You just have to substitute the variable into -7
k = -10t - 19
k = -10(-7) - 19
k = 70 - 19
k = 51
Ginger mows 3/4 acre in 7/4 hours. What is her unit rate of averse mowed per hour
I don’t know how to do this:(
Answer:
me niether
Step-by-step explanation:
lol
What is the answer
5x2 + bx - 7 b=?
Answer:
The answer is 5x^2 + bx -7b
Step-by-step explanation:
The expression is not factorable with rational numbers.
Hoped this helped!
Shelley reaches into a bag of candies and
chooses one without peeking. The bag holds
10 red, 21 orange, 12 green, and 9 yellow candies.
What is the probability that Shelley will select a green candy?
Answer:
12/52 or 23%
Step-by-step explanation:
take the total of all the candy and divide it by the number of green so there are 12 green and 52 over all so it would be 12/52
Answer:
3/13
Step-by-step explanation:
do the work for ur self
Sasha is becoming a stronger runner. Last year she ran five miles in 50 minutes. This year her timing improved by 20%. How long does it take her to run five miles?
Answer:
40 minutes
Step-by-step explanation:
Last year she ran five miles in 50 minutes
This year her timing improved by 20%. This means she runs 5 miles in 20% less time than last year
How long does it take her to run five miles?
= 50 minutes - 20% of 50 minutes
= 50 minutes - 20/100 * 50 minutes
= 50 minutes - 0.2 * 50 minutes
= 50 minutes - 10 minutes
= 40 minutes
This year, it takes her 40 minutes to run 5 miles
Solve the system of equations. -12x-5y=40 and 12x-11y=88 x= y=
Answer:
(0,-8)
x=0
y=-8
Step-by-step explanation:
There are a couple of ways you can solve this I used what I think is called the elimination method
We first start by writing the equations in linear form (y=mx+b)
For the first one we have -12x-5y=40
we add 5y to both sides and subtract 40 to get
-12x-40=5y
divide by 5 to get
-12/5x-8=y
Then the second one we have
12x-11y=88
same deal here, add 11y and subtract 88 to get
12x-88=11y
divide by 11 and get
12/11x-8=y
We then set the two equations equal to each other and get
-12/5x-8=12/11x-8
We can add 8 to both sides and get
-12/5x=12/11x
Just by looking at it you can see that the only solution for x is 0
Plug in 0 to the first equation and get -12*0-5y=40
This means that -5y=40
Solve for y and get -8
Answer:
x=0 , y= -8
Step-by-step explanation:
please help ASAP!! it’s for geometry
Plsssss help, i SUCK AT MATH :(
Answer:
q>3<10
good luck :)
Melodys family wants to go to Hawaii, which is a 3,700 mile airplane ride. Write the number of miles in scientific notation
Answer:
[tex]3.7*10^3[/tex]
Step-by-step explanation:
Step one:
given data
3,700 mile
In scienctific notation or in standard form 3,700 mile is expressed as
[tex]3.7*10^3[/tex]
How many solutions does this equation have?
6x + 2 = x + 2
What is 32/50 reduced to lowest terms?
Answer:
32/50 reduced is 26/25.
Answer: 16/25
Step-by-step explanation:
- Factor 2 out of 32
- 2 (16)/50
- 16/25
Pls help as fast as you can.
Answer: the 2nd one tan(- 5x/6)
Step-by-step explanation: because if you equal the numbers it will become a negative number i hope this helps :)
Please help. 20 points! and brainliest!
Answer:
11: 14
12: 50
13: 25
Sorry if I’m incorrect, I tried my best
Step-by-step explanation:
Answer:
11. 14 students total
12. $2.00
13. 64 cows
Step-by-step explanation:
I think i got all of these right, I hope this helps you out a little bit
:(( !! CAN SOMONEE PLSS HELP ME WITH THIS ?? TYY!! :)
Answer:
The answer would be -10
Step-by-step explanation:
(-2)+2*(-2)-10
4-4-10
-10
QUESTION 1
Calc
If the exchange rate is
£1 = $1.80
Work out the missing values
a) £520 = $.....
16.
Answer:
$92.60
Step-by-step explanation:
1.50 x 105
5.0 x 101
. ?
Answer:
225
505
Step-by-step explanation:
Answer:
157.5 and 505
Step-by-step explanation:
1.5 * 105
you can times both by 10 to get whole number
15*105 = 1575
add the decimal back
157.5
5 * 101 = 505
The graph shows the relationship between time
and the number of soda bottles a machine can make use the points 4,180band (7,315) to find the number of soda bottles the machine can make each minute.
Answer:
45
Step-by-step explanation:
The points on the graph :
(4, 180) ; (7, 135)
x1 = 4 ; y1 = 180
x2 = 7 ; y2 = 315
The number of soda bottles the machine can make in a minute is the gradient or slope :
Gradient = change in y / change in x
Gradient = (y2 - y1) / (x2 - x1)
Gradient = (315 - 180) / (7 - 4)
Gradient = 135 / 3
Gradient = 45
Hence, the machine can make 45 soda bottles in a minute.
Donnie is considering two different DVD rental stores, both of which have a one-time membership fee and a fee per rented DVD.
The cost for renting DVDs at the first store is shown below:
Number of DVDs rented Cost ($)
1 5.50
2 7.00
3 8.50
The cost for renting DVDs at the second store is modeled by the linear function C = 5 + 2d, where d is the number of DVDs rented and C is the cost.
Compare the rates of change for each function and explain what this means in terms of the context.
Answer:
⇒Store i charges $4 for one-time membership fee and a fee of $1.50 per rented DVD
⇒Store ii charges $5 for one-time membership fee and a fee of $2 per rented DVD
⇒ Renting a DVD in shop {i} is cheaper than in shop {ii}
Step-by-step explanation:
In the first store, the equation for cost can be calculated as;
Find slope using the data set
Number of DVDs rented Cost {$}
1 5.50
2 7.0
3 8.50
m= Δy/Δx
m= 8.50 - 5.50 / 3-1
m= 3/2 = 1.5
Write the equation
m= Δy/Δx
1.5 = y-7/ x-2
1.5 { x-2 } = y-7
1.5 x - 3.0 = y-7
1.5x -3.0 + 7 = y
1.5 x + 4= y
C= 4 + 1.5 d ------where d is the number of DVDs rented
Comparing the two equations that model the cost of renting DVDs
i) C= 4 + 1.5d
ii) C=5 + 2d
⇒Store i charges $4 for one-time membership fee and a fee of $1.50 per rented DVD
⇒Store ii charges $5 for one-time membership fee and a fee of $2 per rented DVD
For example 2 DVDs are rented in both store, you can find the store which is cheaper as;
i) C= 4 + 1.5d = 4+ 1.5*2 = 4 + 3 = $7
ii) C=5 + 2d = 5 + 2 * 2 = 5 + 4 = $9
⇒ Renting a DVD in shop {i} is cheaper than in shop {ii}
Renting a DVD from store (2) is costlier than renting from store (2).
Linear equation: A linear equation represents the relation between two variables 'x' and 'y',
y = mx + b
Here, m = slope of the line
b = y-intercept
For store (1),
Let the linear equation representing the cost for renting the DVDs is,
C = md + b
Here, m = slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
And 'd' = Number of DVDs
Let the two points lying on the line are (1, 5.5) and (2, 7),
So the slope will be,
[tex]m=\frac{7-5.5}{2-1}=1.5[/tex]
Equation of the line will be → C = 1.5d + b
Since, this line passes through a third point (3, 8.5),
Substitute the values in the equation of the line,
8.5 = 1.5(3)+ b
8.5 - 4.5 = b
b = 4
Hence, equation of the line for the cost of renting a DVD from store (1) will be,
C = 1.5d + 4 ---------(1)
For store (2),
Equation of the line has been given as,
C = 2d + 5 ------(2)
Equation (1) represents a fixed cost of $4 and $1.5 for renting each DVD.
Equation (2) represents a fixed cost of $5 and $2 for renting each DVD.
If Donnie rents a DVD from both the stores,
Cost for renting DVDs at store (1) → C = 1.5(1) + 4 = $5.5
Cost for renting one DVD at store (2) → C = 2(1) + 5 = $7
Therefore, renting a DVD from store (2) is costlier than renting from store (2).
Learn more about the linear equations here,
https://brainly.com/question/4695400?referrer=searchResults
PLEASE HELP !!
Below is a list of locations that are close to Acrophobia.
.
Scorcher - 540.7 feet
• Dare Devil - 780.9 feet
• Goliath - 650.7 feet
• Splash Water Falls-630.9 feet
• Batman the Ride - 1280.17 feet
• Superman Ultimate Flight - 480.6 feet
• Six Flags Over Georgia Park Entrance - 1361.8 feet
• Gas Station - 2874.9 feet
• Nearby Neighborhood - 18764.8 feet
• Small Shopping Mall - 10763.8 feet
If you ride Acrophobia, which locations could you possibly see and at what angle(s)? Describe why you can't see
certain locations. Be sure to show all your work that justifies all your responses,
Answer:
ok what do you what me to do with it
Step-by-step explanation: