Answer: decrease of 33.62%
Step-by-step explanation:
(345-229) / 345 * 100
Answer:
Cost of cell phone in 2000 = $229
Cost of cell phone in 2020 = $345
% Change in price = 229/345x 100
Answer =66%
Step-by-step explanation:
Aljan and Bella are both driving from Cleveland to Chicago. Aljan leaves at
7:40 and averages 60 mph (miles per hour on the way. Bella leaves at 8:00
and averages 65 mph on the way. The situation is modeled by this system,
where x is the number of hours after Bella leaves and y is the distance each
will travel:
y = 60x + 20
y = 65x
How long after Bella leaves will she pass Aljan, and how far will they each
have traveled?
Answer:
Bella will pass Ajjan after 4h and they will have travelled 260 miles.
Step-by-step explanation:
In order to calculate the number of hours, "x", that it'll take for Bella to pass Aljan, we need to find the value of "x" that makes both equations equal. Therefore,
[tex]60*x + 20 = 65*x\\65*x - 60*x = 20\\5*x = 20\\x = \frac{20}{5} = 4[/tex]
In order to calculate the distance they traveled, we must use this value for "x" in any of the equations, as done below:
[tex]y = 65*4\\y = 260[/tex]
Bella will pass Ajjan after 4h and they will have travelled 260 miles.
Answer:
Bella will pass Ajjan after 4h and they will have travelled 260 miles.
Step-by-step explanation:
hi what s the answer
Answer:
a) 60%
b) 55%
Step-by-step explanation:
a) Count the shaded boxes: 6
Count the total: 10
6 / 10 = 60%
b) Count the shaded boxes: 11
Count the total: 20
11 / 20 = 55%
Answer:
Hey!
a) 60%
b) 55%
Step-by-step explanation:
how do you get a??
we have to c ount the shaded boxes: 6 boxes
6 divided by 10 = 0.6 (multiply by 100 to get 60%)
Now...
We have to count the shaded boxes: 11 boxes in total
Count the total available boxes: 20
11 divided by20 = 0.55 (multiply by 100 to get 55%)
HOPE THIS HELPS!!
PLs help me with this it is really quick!!
Answer:
It's the first one.
Step-by-step explanation:
The first one cannot be folded into a square because of its shape. This question is more of an IQ question so it's not really something you can teach to someone else, but I hope this helps and that you will get it!
Which of the following statements is true? A. sin(j)>cos(L) B. sin(L)
Answer:
a
Step by step explanation:
maybe
2
Select the correct answer.
In an axiomatic system, which category do points, lines, and planes belong to?
A
theorems
B.
axioms
C.
undefined terms
D.
definitions
7 ∙ 15 can be written as _____.
5(7 + 10)
10(7 + 5)
7(10 + 5)
Answer:
7(10+5)
Step-by-step explanation:
A)50ft2
B)104ft2
C)54ft2
D)208ft2
Answer:
77
Step-by-step explanation:
help meeee, i need helppp
Answer: The first one is A. 16 + 10 +10 +10 +10
The second one is 40 units^2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
When you get all the areas together, the answer is A. Sorry i was late to help
There are 9 friends playing a card game in which all of the 52 cards in a standard deck are distributed to the players. How many cards does each person get?
Answer:5 and 7 left
Step-by-step explanation:
Answer:
Each person would get 5 cards, withe 7 left over.
Step-by-step explanation:
This is because 52/9 is 5.7777. So then you would multiply 9 by 5 and get 45. You finally do 52-45 and get the 7 leftovers.
Someone help me please !!
13 points
Answer:
idk
Step-by-step explanation:
The numerator of a rational number is less that it’s denominator by 7.If the new number becomes 3/2 when the numerator is tripled and the denominator is increased by 16, find the original number
Pls help me with this question
Answer:
[tex]\frac{23}{30}[/tex]
Step-by-step explanation:
let the denominator of the original fraction be x, then
[tex]\frac{x-7}{x}[/tex] ← is the original fraction
After the given changes, that is
[tex]\frac{3(x-7)}{x+16}[/tex] = [tex]\frac{3}{2}[/tex] ( cross- multiply )
6(x - 7) = 3(x + 16) ← distribute parenthesis on both sides
6x - 42 = 3x + 48 ( subtract 3x from both sides )
3x - 42 = 48 ( add 42 to both sides )
3x = 90 ( divide both sides by 3 )
x = 30
Thus
[tex]\frac{30-7}{30}[/tex] = [tex]\frac{23}{30}[/tex] ← the original rational number
Solve for y.
212-y=282
Answer:
y = -70
Step-by-step explanation:
212 - y = 282
212 - 282 = y
-70 = y
y = -70
simplify (3)(-4) + (3)(4) - 1
Answer:
1
Step-by-step explanation:
Please answer CORRECTLY !!!!!! WILL MARK BRAINLIEST
Answer:
5
Step-by-step explanation:
7m - 2m = 5m
-5n - 3n = 8n ( just in case you need it (: )
Also, have a great day
A globe in the shape of a sphere has a radius of 3/4 ft. What is the volume of the globe?
Answer:
1.768
Step-by-step explanation:
Answer:
1.77 ft^3
Step-by-step explanation:
V=4/3pi(3/4)^3
V=4*3^3pi/3*4^3
V=9pi/4^2
V=9pi/16
V=1.77
Rewrite the function by completing the square.
h(x)=4x^2-36x+81
Answer:
[tex]4(x-4.5)^2+60.75[/tex]
Step-by-step explanation:
[tex]h(x)=4x^2-36x+81\\\\h(x)=4(x^2-9x+20.25)+60.75\\\\h(x)=4(x-4.5)^2+60.75[/tex]
Hope this helps!
Answer:
Step-by-step explanation:
Use the formula
b/2^2
Answer: 4( x- 9/2)^2 + 0
2) The sum of two numbers is 100. Their difference is 4. What are the two numbers?
Answer: 48, 52
Step-by-step explanation:
The sum of the two numbers (x, y) is 100. This means that;
x+y=100
Their difference is 4, so;
y=x+4
Now, you can substitute that in for y;
x+(x+4)=100
Simplify;
2x+4=100
2x=96
x=48
Now, we plug in the value of x to the second equation;
y=48+4
y=52
Answer:
48 and 52
Step-by-step explanation:
We have a pair of simultaneous equations and will solve these using substitution.
x + y = 100 (1)
x - y = 4 (2)
Solve for x:
x+y=100 , x - y = 4
x=52
Substitute x with 52
(52) + y = 100 , (52) - y = 4
Simplify:
y = 48
40 points
What are the slope and the y-intercept of the linear function that is represented by the table?
x
y
Negative three-fourths
Negative StartFraction 1 Over 30 EndFraction
Negative one-half
Negative StartFraction 2 Over 15 EndFraction
One-fourth
Negative StartFraction 13 Over 30 EndFraction
Two-thirds
Negative three-fifths
The slope is Negative two-fifths, and the y-intercept is Negative one-third.
The slope is Negative one-third, and the y-intercept is Negative two-fifths.
The slope is One-third, and the y-intercept is Negative two-fifths.
The slope is Two-fifths, and the y-intercept is Negative one-third.
Answer:
c
Step-by-step explanation:
did the exam on edge and got 100
The slope is Negative two-fifths, and the y-intercept is Negative one-third. Hence, the correct option is A.
What is the equation of a line?A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The equation of a line is given by,
y =mx + c
where,
x is the coordinate of the x-axis,
y is the coordinate of the y-axis,
m is the slope of the line, and
c is the y-intercept.
The slope of the linear function that is represented by the table,
Slope, m = [(-3/5) - (-13/30)]/[(2/3)-(1/4)]
= [(-18+13)/30] / [(8-3)/12]
= -(12/30)
= -(2/5)
The y-intercept of the linear function that is represented by the table can be found by substituting the coordinate of any one point in the equation of the line.
[tex]y = mx + c\\\\-(\dfrac{2}{15}) = -(\dfrac{2}{5})(-\dfrac12) + C\\\\-\dfrac{2}{15} = \dfrac15 + C\\C = -\dfrac5{15}\\\\C = -\dfrac13[/tex]
Hence, The slope is Negative two-fifths, and the y-intercept is Negative one-third. Hence, the correct option is A.
Learn more about Equation of Line:
https://brainly.com/question/21511618
#SPJ2
A jar contains 100 tickets for a drawing. Among those tickets are 7 winning tickets. What are the odds in favor of winning?
A. 7:93
B. 7:100
C. 93:7
D. 93:100
Answer:
i say 7/100
Step-by-step explanation:
if the 100 tickets is your total then its your denominator
the 7 is represents the tickets what are winners
The solid glass award that Jillian was given has a total height of 15 inches as shown. A rectangular pyramid with a base of 6 inches by 4 inches and a height of 15 inches. A rectangular prism with a length of 6 inches, width of 4 inches, and height of 2 inches. What is the total volume of glass used to make the award? 120 inches cubed 152 inches cubed 168 inches cubed 204 inches cubed
Answer:
204inches i think
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
edge
A rectangular street sign has an area of 40 square inches and a perimeter of 28 inches. What are the dimensions of the sign?
inches by inches
Answer: 4 inches by 10 inches
Step-by-step explanation:
The area of a rectangle can be written as b*h, while perimeter is equal to (2b +2h).
A = b*h = 40
P = 2b + 2h = 28
P = 2b + 2h
28 = 2b + 2h
28 = 2(b+h)
14 = b + h
What two numbers add to 14 and multiply to 40?
4 * 10 = 40
4 + 10 = 14
Answer:
10 and 4
Step-by-step explanation:
Solve for x. Your answer must be simplified. x/-8 ≥−5
Answer:
x ≤ 40
Step-by-step explanation:
Given
[tex]\frac{x}{-8}[/tex] ≥ - 5
Multiply both sides by - 8 to clear the fraction, reversing the symbol as a result of multiplying by a negative quantity.
x ≤ 40
In order to inscribe a circle in a triangle, which line must you construct?
Answer:
You must construct an angle bisector. The point where two angle bisectors meet is the center of the circle.
The correct answer is D. angle bisector.
Hope this helps =)
Find the volume of the prism.
The volume is
cubic inches.
So the right answer is 3/10 cubic inches.
Look at the attached picture
Hope it will help you
Good luck on your assignment
PLZ HELP ME! I NEED HELP ON THIS
Answer: D (-/ 13 - -/11) those are supposed to be square root signs lol^^
Step-by-step explanation:
write a table to show your steps for calculating the standard deviation and then use your table to calculate the standard deviation of the values listed:
10, 11, 12, 10.5, 11.25, 12.25, 10
Answer:
The standard deviation for the given data set is 1.65.Step-by-step explanation:
The Standard Deviation is defined as
[tex]\sigma =\sqrt{\frac{\Sigma (x_{i} -\mu)^{2} }{N-1} }[/tex]
Where [tex]\sigma[/tex] is the standard deviation, [tex]\mu[/tex] is the mean and [tex]N[/tex] is the total number of data.
So, first, we need to find the mean of the data set.
[tex]\mu = \frac{10+11+12+10.5+11.25+12.25+10}{7} =11[/tex]
Now, we have to subtract each data with the mean to then elevate the differnece to the square power.
[tex]10-11 = -1 \implies (-1)^{2}=1\\ 11-11 = 0 \\12-11 = 1 \implies 1^{2}=1\\ 10.5-11 = -0.5 \implies (-0.5)^{2} =0.25\\11.25 - 11 = 0.25 \imples (1.25)^{2}=0.0625\\12.25 - 11 = 1.25 \implies (1.25)^{2}=1.5625\\10-11 = -1 \implies (-1)^{2}=1[/tex]
Then, we sum all these results.
[tex]\Sigma (x_{i}- \mu )^{2}=1+0+1+0.25+0.0625+1.5625+1=16.278[/tex]
Next, we divide the sum by [tex]N-1=7-1=6[/tex]
[tex]\frac{\Sigma (x_{i}-\mu )^{2} }{N-1}=\frac{16.278}{6} \approx 2.713[/tex]
Finally, we apply the square root.
[tex]\sigma = \sqrt{2.713} \approx 1.65[/tex]
Therefore, the standard deviation for the given data set is 1.65.
Please answer CORRECTLY !!!!!! Will mark brainliest !!!!!!!!!!
Answer:
f(a) = 1,5
Step-by-step explanation:
-3a + 6b = a + 4b
[+3a] [+3a]
6b = 3a + 4b
[-4b] [-4b]
2b = 3a
[÷2] [÷2]
b = 1,5a
Try:
. 13(5x + 7y + 8)
Answer:
65x+91y+104
Step-by-step explanation:
13(5x + 7y + 8)
Distribute
12*5x +13*7y+13*8
65x+91y+104
Answer:65x+91y+104
Step-by-step explanation:
(13)(5x+7y+8)
(13)(5x)(13)(7y)+(13)(8)
65x+91y+104
Hope this helps
Identify the sets as integers,natural numbers or whole numbers {0,5,10,15}
Answer: They are all of the above.
Step-by-step explanation: A integer is a whole number, a whole number is a integer and a natural number is a whole number. The definition of a whole number is a number with no fractions, the definition of a integer is a number with no fractions, and the definition of a natural number is a positive number.
Solve by substitution
y=2x-3
-x-8y=7
Answer & Step-by-step explanation:
y = 2x - 3
-x - 8y = 7
Since, we have a equation for y, then we can substitute this equation for y to solve for x.
-x - 8(2x -3) = 7
-x - 16x + 24 = 7
-17x + 24 = 7
-17x = -17
x = 1
So, since we know that x is equal to 1, then we can plug in this number for the equation of y to find y.
y = 2(1) - 3
y = 2 - 3
y = -1
So, the solution is (1, -1). X equals 1 and y equals -1.