Answer:
xy+5
Step-by-step explanation:
Answer: xy + 5
Work: So, we are going to divide everything by two. So, in the current equation, it divides everything by two, including the current two, which cancels it. So, after all the division, we get the current answer; xy + 5
I hope this helps, and Happy Holidays! :)
2 4/5 divided by 2 1/5 plz answer corectly ps this is mixed number ones
Answer:
The correct answer is 1.27.
Step-by-step explanation:
Step 1: Turn the mixed numbers into improper fractions.
2 4/5 = 14/5
2 1/5 = 11/5
Step 2: Turn the improper fractions into decimals.
14/5 = 2.8
11/5 = 2.2
Step 3: Divide the fractions.
2.8 ÷ 2.2 = 1.27 when rounded to the nearest hundred.
Hope this helps! :D
14. Profits at Steven's Pastry shop increased by $1,645 in one 7-day week. By how much did
profits increase each day?
To find the answer, all we need to do is divide his additional profits ( $1,645 ) by the number of days he made the profit ( 7 days in the week )
$1,645 ÷ 7 = $235
Steven's Shop profits increased by $235 each day!
Hope I helped! If you more explanation, just comment ! :)
PLSS HELP WITH NUMBER 6
Answer: 100oz=6.25 lb
Step-by-step explanation:
20 points
A car drove 10.8 miles in 0.4 hours. a.) How fast was the car traveling in miles per hour? b.) At that rate, how long did it take the car to travel 256.5 miles?
Answer:Miles Per Hour Definition. Our Miles Per Hour Calculator can tell you how many miles you drive in a single stretch. On long road trips, knowing how many miles you are averaging per hour can give you an idea of how long it will take to get to your destination.It is also a good indicator if you are taking too many breaks or if traffic has caused delays in your journey.
Step-by-step explanation:and what you say is 20 points is only 10 points or 13
solve all for brainliest
hope this helps!!!!!
For what value of k is the expression [tex]x^{4}[/tex]+k[tex]x^{2}[/tex]+49 a perfect square?
a. 7
b. 14
c. 49
d. 98
Answer:
k = 14
Step-by-step explanation:
Given:
x⁴ + kx² + 49
Find:
Value of k
Computation:
x⁴ + kx² + 49
(x²)² + (k)(x²) + 7²
we know that;
a² + 2ab + b²
On compare;
k = 2 x 7
k = 14
Jamal uses the steps below to solve the equation 6x – 4 = 8. Step 1: 6x – 4 + 4 = 8 + 4 Step 2: 6x + 0 = 12 Step 3: 6x = 12 Step 4: StartFraction 6 x Over 6 EndFraction = StartFraction 12 Over 6 EndFraction Step 5: 1x = 2 Step 6: x = 2 Which property justifies Step 3 of his work? the addition property of equality the identity property of addition the multiplication property of equality the identity property of multiplication
Answer:
The identity property of addition
Step-by-step explanation:
Jamal uses the steps below to solve the equation 6x – 4 = 8.
Step 1: 6x – 4 + 4 = 8 + 4( Addition step of equality)
Step 2: 6x + 0 = 12
Step 3: 6x = 12 (Identity property of Addition)
Step 4: StartFraction 6 x Over 6 EndFraction = StartFraction 12 Over 6 EndFraction
Step 5: 1x = 2
Step 6: x = 2
The that property justifies Step 3 of his work is known as the identity property of addition.
The identity property of addition can be defined as when a given number x is added to zero, the result is we obtained x which is the given number itself.
Answer:
B) the identity property of addition
Step-by-step explanation:
EDGE 2020
I need help which one is it?
Answer:
B. 3
Step-by-step explanation:
Can help with this please,
A phone shop sells iPhones and Samsung phones in a ratio of 7:5.
Last week the shop sold 42 iPhones.
How many Samsung phones did it sell?
Answer:
30
Step-by-step explanation:
Given the ratio 7 : 5
The 42 iPhones sold relates to the 7 part of the ratio.
Divide 42 by 7 to find the value of one part of the ratio.
42 ÷ 7 = 6 ← value of 1 part of the ratio, thus
5 parts = 5 × 6 = 30 ← number of Samsung phones sold
Which expression is equivalent to - 1/3 (3x - 1/2)?
Answer:
-x+1/6
Step-by-step explanation:
Multiply -1/3 x 3x=-1x or -x
Multiply -1/3 x -1/2= 1/6
PLEASE HELP FAST!
Solve for X
3x + 4y = -16
X = 4y
Answer:
x = -4
Step-by-step explanation:
3x + 4y = -16
X = 4y
3(4y) +4y = -16
=> 12y + 4y = -16
=> 16y = -16
=> y = -1
3x + 4(-1) = -16
=> 3x -4 = -16
=> 3x = -12
=> x = -4
Hope this helps! :3
plz mark as brainliest!
Answer: It is indeed -4.
Step-by-step explanation: Refer to the answer above me, they have everything exactly right.
24) IF area of quadrant of a circle is
38.5 sq.cm then diameter is *
O 7cm
O 14 cm
0 21 cm
O None of these
Answer:
none of these
Step-by-step explanation:
h(x) = square root of x-10
Answer:
B
Step-by-step explanation:
y = –x + 5
y = –2x + 7
Answer:
x = 2, y = -3
Step-by-step explanation:
Since both equations are set equal to y,
[tex]-x+5=-2x+7 \\ \\ x=2 \\ \\ \implies y=-2+5= - 3[/tex]
Question in photo too lazy to solve lol
The value of 3centimeters to kilometers is 0,00003 km
Converting centimeters to metersIn order to convert centimeters to kilometers, we will use the conversion factor below.
100cm = 1m
1000m = 1km
Given 3cm
3cm = 3/100 m
3cm = 0.03m
Convert to km
Since 1000m = 1km
0.03m = 0.03/1000
0.03m = 0.00003km
Therefore the value of 3centimeters to kilometers is 0,00003 km
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plz helps me i need help on dis question
Answer: 24oz - $2.59
Step-by-step explanation: 3.29/32= 0.1028
2.59/24= 0.1079
Which table shows y as a function of x
The diagram below shows part of the graph of the equation y= the graph intersects the x-axis at the points. Find the value of a and the value of b. I'm not allowed to use the calculator and I need the process
The value of a and b are 11 and 14.
What is an equation on a graph?The equation on a graph shows the point where the equation intersects
on the x-axis and the y-axis.
We have,
The function as y = 2x² + ax + b
Where it intersects on the x-axis at the points (-7/2, 0) and (2, 0).
Now we can write it as:
At point (-7/2, 0).
0 = 2 (-7/2)² + a(-7/2) + b
0 = 49 / 2 - 7a/2 + b
7a/2 - b = 49/2 _____(1)
At point (2, 0)
0 = 2(2)² + 2a + b
0 = 8 + 2a + b
2a + b = -8 _____(2)
From (1) and (2) we can find a and b.
From (1)
7a/2 - 49/2 = b
b = (7a - 49) / 2 ______(3)
putting in (2)
2a + (7a - 49) / 2 = -8
4a + 7a - 49 = -16
3a - 49 = -16
3a = -16 + 49
3a = 33
a = 11
putting in (3)
b = (7x11 - 49) / 2
b = (77 - 49) / 2
b = 28 / 2 = 14
Thus the value of a and b are 11 and 14.
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The value of a and b for the given equation is 3 and -14 respectively.
The given equation is y=2x²+ax+b, (-7/2, 0) and (2, 0).
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Now put (-7/2, 0) and (2, 0) in the given equation and find a and b value.
That is, 0=2 (-7/2)²+a(-7/2)+b
⇒ 49/2 -7a/2+b=0 ----(I)
0=2(2)²+a(2)+b
⇒ 8+2a+b=0
⇒ b=-2a-8 -----(II)
Put b=-2a-8 in equation (I) and simplify.
That is, 49/2 - 7a/2 -2a-8=0
⇒ 49/2 - 11a/2 - 8 =0
⇒ 49 - 11a=16
⇒ 11a=33
⇒ a=3
Put a=3 in equation (II) and simplify.
That is, b=-2(3)-8=-14
Therefore, the value of a and b for the given equation is 3 and -14 respectively.
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Jenny, Keith, and Joanna participated in a mini-
marathon. At the end of the marathon, Keith ran 3 miles
more than Jenny. Joanna ran two times more miles
than Keith. The three runners covered a total distance
of 16 miles. How many miles did each person run?
M
Answer:
Jenny 1.75 miles, Keith 4.75 miles, Jonna 9.5 milesStep-by-step explanation:
Distance per person:
Jenny - x, Keith - y, Joanna - zEquation as per given:
y = x + 3z = 2y = 2(x + 3)x + y + z = 16Substitute and solve for x:
x + (x + 3) + 2(x + 3) = 162x + 3 + 2x + 6 = 164x = 7x = 7/4 = 1.75Then
y = 1.75 + 3 = 4.75z = 4.75*2 = 9.5The math teacher gives each student a map of the amusement park that uses a coordinate plane. The meeting location is at (0, 0) on the map. Each unit is 100 feet. The first ride that you want to try is located at the coordinates (0, 4). The next ride is located at (3, 0). If you walked in a straight line from the first ride to the second ride, how many feet would you travel?
Answer:
500 ft
Step-by-step explanation:
use this formula
The actual distance between first and second ride is 500 ft.
What is Distance Formula?The distance between two point P(a, b) and Q(c, d).
so, the distance PQ = √(c-a)² + (d- b)²
Given:
Starting point = (0,0)
First ride = (0,4)
Second ride = (3,0)
In map, each unit = 100 ft
Using the distance formula
d = √( 3-0)² + (0-4)²
d = √9+ 16
d= √25
d = 5 units
So, the distance between first ride and second ride in the map is 5 units.
and,1 units = 100 ft
5 units = 500 ft
Hence, the actual distance between first and second ride is 500 ft.
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I need help with my working
Answer:
15^2 = 225
7^3 = 343
Step-by-step explanation:
Ani sells 527 dollars worth of sodas as part of a school club fundraiser. If the sodas cost 310 dollars, what equation can we make to find out how much money ani raised as the variable ?
The total money Ani raised was 217 dollars.
Cost price of soda = 310 dollars
money raised = selling price - cost price
What is selling price?
The cost at which something is sold. Calculate the total cost of all the items you bought. To calculate the cost price, divide the total cost by the quantity of units purchased. Use the selling price formula to calculate the final price: Cost price plus profit margin equals selling price.
What is cost price ?
Cost price is the complete sum of money that a manufacturer must spend to create a specific good or render a specific service. Cost is equal to Selling price plus Loss ( when selling price and loss is given ) Cost price = 100 Selling Price + 100 + Profit (where the Selling Price and Profit Percentage are supplied)
Hence
x = 527 - 310
=217 dollars
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which equation represents the graph
50 points- I'll LOVE YOU FOREVER if you can PLEASE help me with one question i need it really badddd. pls dont give wrong answers
What is the equation of a quadratic function that has a directrix of y=4 and a focus of (-2,-2)
Write an equation in point-slope form of the line that passes through the point (1, 6) and has a slope of −1/2
Answer:
y-6 = -1/2 * (x-1)
Step-by-step explanation:
Point slope form is y - y1 = m(x - x1), where (x1, y1) is the point and m is the slope. Plug in (1,6) for (x1, y1) and -1/2 for m.
What is the area of a circle if the diameter is 27?
Answer:
Step-by-step explanation
A = (3.14)(r^2)
r^2 = (1/2 d) = 13.5^2 = 182.25
A = 3.14 x 182.25 = 572.265 unit sq.
4. Which of the following differences could not give a distance between two points on a number line? Explain why. a. 19-7 c. -12-(-7) b. -3 - (-18) d. 14-(-6)
-12 -(-7) could not be a distance.
Distance:
Distance traveled is the total length of the path traveled between two positions. It can either be a 0 or a positive number that's mean it can never be a negative number.
So from the above-given statement we have
a) 19-7 = 12 (which is positive number)
b) -12 - (-7) = -12 + 7 = -5 ( which is a negative number)
c) -3-(-18) = -3 + 18 = 15 ( which is a positive number)
d) 14-(-6) = 14 + 6 = 20 ( which is a positive number)
Therefore option b i.e., -12 - (-7) cannot be a distance between two points on a number line.
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What is f(4) for the function f(x) = 7x + 6?
Please help asap
Answer:
f(4) for the function [tex]f(x) = 7x + 6[/tex] is [tex]\mathbf{f(4)=34}[/tex]
Step-by-step explanation:
We need to find f(4) for the function [tex]f(x) = 7x + 6[/tex]
For finding f(4) we will put x= 4 in the given function
[tex]f(x) = 7x + 6[/tex]
Put x = 4
[tex]f(4)=7(4)+6\\f(4)=28+6\\f(4)=34[/tex]
SO, f(4) for the function [tex]f(x) = 7x + 6[/tex] is [tex]\mathbf{f(4)=34}[/tex]
Perry's school is selling tickets to a choral performance. On the first day of ticket sales the school sold 12 adult tickets and 7 child tickets for a total of $57. The school took in $63 on the second day by selling 7 adult tickets and 14 child tickets. What is the price of one adult ticket and one child ticket?
Answer:
$6
Step-by-step explanation:
Answer:
both cost 3 dollars
Step-by-step explanation:
x=adult ticket
y=child ticket
12x+7y=57
7x+14y=63
24x+14y=114
-7x-14y=-63
17x=51
x=3
7(3)+14y=63
21+14y=63
14y=42
y=3
Write a function to solve the following word problem
Huey purchases a helicopter for $576,001. The helicopter decreases in value at an 11% rate each year. What will be the value of the helicopter after 12 years? Round to the nearest dollar.
The required function is: 576,001 - ( 0.11 * 576,001 * x )
The value of the helicopter after 12 years, to nearest dollar is -$184320
How to find the value of the helicopter after 12 yearsGiven data
price of a helicopter $576,001
rate of value decrease is 11%
The decrease in value will result to
= 576,001 - 0.11 * 576,001 * x
let x represent the number of years
the required function is: 576,001 - 0.11 * 576,001 * x
plugging in 12 and solving results to
= 576,001 - 0.11 * 576,001 * x
= 576,001 - 0.11 * 576,001 * 12
= 576,001 - 760321.32
= -184320.32
The value of the helicopter after 12 years, to nearest dollar is -$184320
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