Answer:
[tex]f(n + 1) = f(n) - 2 \\ n = 1 - - - - f(1 + 1) =f(1) - 2 \: \: \: - - - > \: \: f(2) = 10 - 2 = 8 \\ f(2) = 8 \\ n = 2 - - - - f(2 + 1) = f(2) - 2 \: \: \: - - - > \: \: \: f(3) = 8 - 2 = 6 \\ so \: f(3) = 6 \\ and \: we \: are \: done.[/tex]
Kenneth is 10 years older than Andrew. Billy is 2 times as old as Andrew. Cameron is 8 years younger than Andrew. The combined age of the four is 77. How old is each boy?
Answer:
[tex]a=15\\b=30\\c=7\\k=25[/tex]
Step-by-step explanation:
[tex]77=a+k+b+c[/tex]
[tex]b=2a[/tex]
[tex]c=a-8[/tex]
[tex]k=10+a[/tex]
[tex]77= a+2a+(a-8)+(a+10)[/tex]
[tex]77=3a+(2a+2)\\77-2=3a+2a\\75=5a\\[/tex]
At one gym, there is a $12 start-up fee, and after that each month, m, at the gym costs $20. At another gym, each month at the gym costs $22. After how many months will the cost of both gyms be the same? =
Jason bought 10 of the 30 raffle tickets for a drawing. What is the probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize it is thrown away? StartFraction 6 over 203 EndFraction StartFraction 1 over 27 EndFraction StartFraction 3 over 29 EndFraction StartFraction 1 over 9 EndFraction
Given:
Total of raffle tickets = 30
Number of tickets Jason bought = 10
Number of prizes = 3
To find:
The probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize it is thrown away.
Solution:
Total of raffle tickets = 30
Number of prizes = 3
So, number of total outcomes is
[tex]n(S)=^{30}C_3[/tex]
Number of tickets Jason bought = 10
So, number of favorable outcomes is
[tex]n(A)=^{10}C_3[/tex]
Now,
[tex]\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}[/tex]
[tex]\text{Probability}=\dfrac{n(A)}{n(S)}[/tex]
[tex]\text{Probability}=\dfrac{^{10}C_3}{^{30}C_3}[/tex]
[tex]\text{Probability}=\dfrac{\dfrac{10!}{(10-3)!3!}}{\dfrac{30!}{(30-3)!3!}}[/tex]
[tex]\text{Probability}=\dfrac{10\times 9\times 8\times 7!}{7!3!}\times\dfrac{27!3!}{30\times 29\times 28\times 27!}[/tex]
[tex]\text{Probability}=\dfrac{10\times 9\times 8}{30\times 29\times 28}[/tex]
[tex]\text{Probability}=\dfrac{6}{203}[/tex]
Therefore, the correct option is A.
Answer:
The correct answer is A. 6/203
93 is what percent of 620?
%
Answer:
15%
Step-by-step explanation:
Answer:
15%
Step-by-step explanation:
Graph the equation y(1/2)x using the stope and y-intercept
AAAAAAAAAAAAAA
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Last year 42 new houses were built in a neighborhood. So far this year 5/7 of them have been sold. How many new houses have been sold this year?
Answer:
30
hope this helps.
Answer:
35 houses
Step-by-step explanation:
why do terms have to be like terms?
Answer:
Like terms are terms that contain the same variables raised to the same power. Only the numerical coefficients are different. In an expression, only like terms can be combined. We combine like terms to shorten and simplify algebraic expressions, so we can work with them more easily.
Plz Help and Thank you :/
Answer:
I believe c is correct
Length breadth and height of a room are 5 metre 4 metre and 4 metre Calculate its area
Answer:
Area = L x B
= 5m x 4m =20m square
Simplify the following expression. 7^-5/6*7^-7/6
Answer:2.0068782e-12
Step-by-step explanation:
N+4-9-5n help me help me help me
Answer:
-4n - 5
General Formulas and Concepts:
Combining like termsStep-by-step explanation:
Step 1: Write expression
n + 4 - 9 - 5n
Step 2: Simplify
Combine like terms (n): -4n + 4 - 9Combine like terms (constants: -4n - 5What is the value of x in the equation (4x – 1) - 3x =
<= -(x + 2)?
1 3 19
16 16 16
3
X =
Answer:
Step-by-step explanation:
x − 1. _. 3. = 3 by 3 gives x − 1 = 9 and then adding 1 to both sides of x − 1 = 9 gives x = 10. Choices A, B ... written as the equation 16 + 4x = 10 + 14, which is equivalent to 16 + 4x = 24. Subtracting
2. C is at (-5.1) & D is at (7.6). Where is the midpoint on segment CD?
Answer:
1.25
Step-by-step explanation:
Find the average.
-5.1+7.6=2.5
2.5/2
1.25
The product of three and a number is thirty
Answer:
10
Step-by-step explanation:
3 times 10 equals 30
HELPPPP!!!!
4. Mike is making bread for a family reunion. He knows that he needs 5.25 cups of flour per loaf.
A. If mike needs 5 loaves and one smaller half loaf, how much flour will Mike need in all? (6 points)
B. If mike makes a small loaf for himself that is 0.75 times the regular loaf, how much flour will he need? (6 points)
Answer:
A. 7.87 cups for 5½ loads
B. 3.93 cups for the tiny loaf
Step-by-step explanation:
A. 5.25 divide by 2 = 2.62 (rounded)
5.25 + 2.62 = 7.87
B. 5.25 × 0.75 = 3.93 cups
Korie randomly selects a number from the numbers shown below 54, 60, 11, 0, 5, 7, 20
what is the probability that the number she selected is an even number
Answer:
I think its 3 out of 7
what is the next. three numbers for 12 14 13 15
Answer:
16,17,18,
Step-by-step explanation:
:D im so smart
Answer:
14 16 15 17 16 18
Step-by-step explanation:
What is the reflection of K and L and M and N
K’: (0, 1)
L’: (-3, 1)
M’: (-2, 3)
N’: (-1, 3)
You are reflecting across the x = 2, so the line is vertical on 2 like |. It’s as many points away on each side for the other side. Ex. K is 2 points to the right of x = 2 so then it would be 2 points to the left of x = 2.
Find the measure of the missing angles.
Answer:
d = 103
e = 22
f = 55
Step-by-step explanation:
ok so the angles on the other side 22 and 103 are equal to 2 of the angles on the other side
the whole line is equal to 180
103 + 22 = 125
180 - 125 = 55
d = 103
e = 22
f = 55
Answer:
d = 103
e= 22
f= 55
Step-by-step explanation:
the opposite side of d equals 103 and they are adjacent which means they have the same measure
same goes to e the opposite side of it equals 22
and then for f a full line measure equals 180
so 103+22= 125
180-125= 55
there you have it :)
If the area of the rectangle is given by the polynomial 2x^2-7x-15, what is the dimension of the reactangle in terms of x?
Answer:
x - 5 and 2x + 3Step-by-step explanation:
GivenArea of rectangle = 2x^2 - 7x - 15To findDimensions of rectangleSolutionSince the area is the product of the sides, let's try to factorize the given:
2x^2 - 7x - 15= 2x^2 - 10x + 3x - 15 =2x(x - 5) + 3(x - 5) =(x - 5)(2x + 3)So the dimensions are:
x - 5 and 2x + 3pls help!! 15 points! What are the minimum and maximum values of t for which |t + 3| ≤ 2?
Minimum=
Maximum=
Answer:
Minimum: x<-1
Maximum: x> 1
both are also equal to i just don’t have the sign
One-third of a number decreased by six equals eight. What is the number?
6
14
24
042
It's 42.
The equation would be 1/3n - 6 = 8.
Just plug in each number in the place of 'n' then see what actually equals 8.
If 2.2 pounds of a certain grain cost $1.54, how much will 5.7 pounds of the grain cost? A. $4.38
B. $4.79
C. $3.62
D. $3.99
The cost of 5.7 pounds of the grain is given by the proportion A = $ 3.99
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the proportion be represented as A
Now , the value of A is
We can use a proportion to solve this problem. Let "A" be the cost of 5.7 pounds of the grain. Then we can write:
2.2 pounds / $ 1.54 = 5.7 pounds / A
To solve for "A", we can cross-multiply and simplify:
2.2 pounds x A = $ 1.54 x 5.7 pounds
A = ($ 1.54 x 5.7 pounds) / 2.2 pounds
A = $ 3.99
Hence , 5.7 pounds of the grain will cost $ 3.99
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Every few years, Brendan's entire family gets together for a family reunion. This year,
Brendan's parents are hosting, and they have to cook a lot of food to feed the crowd.
Brendan has volunteered to do the most tedious job:
shelling peas.
There is a proportional relationship between the amount of time (in
minutes)
Brendan spends shelling peas, x, and the weight (in pounds) of the peas he has shelled,
у
х
y
(minutes) (pounds)
2
1
4
2
6
3
12
6
What is the constant of proportionality? My
Answer:
k = 0.5
Step-by-step explanation:
There is a proportional relationship between the amount of time in shelling peas 'x' and the weight of the peas 'y'.
Therefore, y ∝ x
⇒ y = kx
Here, k = proportionality constant
From the given table,
If family spends the time 2 minutes (x-value) in shelling 1 pound of peas (y-value),
1 = k × 2
k = [tex]\frac{1}{2}[/tex]
k = 0.5
Therefore, proportionality constant for the relationship is 0.5.
Ten oranges are to be shared between two boys in the ratio 1:4 how many will each boy get
Answer:
2 and 8
Step-by-step explanation:
Well. Boy A gets 1 orange, so the other must get 4. So say boy A gets 2 oranges now, so the other must get also double the amount of oranges, which is 8.
1:4
If you changed the 1 to a 2, you have x2 (you can only x or ÷, in ratio) on the other side. Whatever you do to this side, you do to the other side. So it becomes
2:8
Add the numbers together to find the total number of parts. You get 10 in this ratio, so it must be the answer.
5x999 dghdiuhfuidfuewyf
Answer:
5x999 urfiwbyginwgf fjkwfg8
Step-by-step explanation:
you take the 5 by x by 999 and kvbbci then you are supposed to uibjouwfbc by owihefojw and oiwhjwnfwfb
Answer:
4995
Step-by-step explanation:
Because
999
x 5
4995
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For the equation y+1= -3(x-5) the line contains the point (5,-1) and has a slope of?
Answer:
I think its (0,-3)
Step-by-step explanation:
I took the coordinates you gave me and placed they X axis where the X was and put the Y axis where the Y was and got that answer
The required slope of the line is -3 for the equation y + 1 = -3(x-5) the line contains the point (5,-1).
What is the slope of the line?The equation for a line in slope-intercept form is given by y = mx + b, where m is the slope of the line and b is the y-intercept (the point where the line crosses the y-axis).
To put the equation y + 1 = -3(x - 5) into slope-intercept form, we need to solve for y. We can do this by subtracting 1 from both sides of the equation, which gives us y = -3(x - 5) - 1. We can then distribute the -3 on the right side of the equation to get y = -3x + 15 - 1. Finally, we can simplify this to get y = -3x + 14.
In this equation, m = -3 and b = 14. We can verify that this is the correct equation by substituting the coordinates of the point (5,-1) into the equation and solving to see if the equation is true. When we substitute the values into the equation, we get -1 = -3(5) + 14, which is true.
Therefore, the slope of the line is m = -3.
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Scott and Nikki each have a full 1.5-gallon container of liquid laundry detergent. The lid on Scott's container can hold 3 fluid ounces of detergent, while the lid on Nikki's container can hold 4 fluid ounces of detergent. How many more lids full of detergent does Scott have than Nikki? 10 lids 16 lids 48 lids 64 lids
Given:
Scott and Nikki each have a full 1.5-gallon container of liquid laundry detergent.
Lid on Scott's container can hold 3 fluid ounces of detergent.
Lid on Nikki's container can hold 4 fluid ounces of detergent.
To find:
The number of lids full of detergent Scott have more than Nikki.
Solution:
We know that,
1 gallon = 128 fluid ounces
1.5 gallon = 192 fluid ounces
Lid on Scott's container can hold 3 fluid ounces of detergent. So, number of lids full of detergent Scott have is
[tex]\dfrac{192}{3}=64[/tex]
Lid on Nikki's container can hold 4 fluid ounces of detergent. So, number of lids full of detergent Nikki have is
[tex]\dfrac{192}{4}=48[/tex]
Difference between number of lids is
[tex]64-48=16[/tex]
Therefore, Scott have 16 lids more than Nikki. Hence, the correct option is B.
Answer: it is 16
Step-by-step explanation:
Jamie and Ryan work at the grocery store. The wages earned for the weekend are shown in the table and graph. Who gets paid more per hour
plz answer right away
Answer:
Ryan earns more per hour.
Step-by-step explanation:
1) 40/5=$8.00 per hour for jamie
2)8.50/1=$8.50 per hour for ryan.
3)8.50>8.00
!!45 points!! True or false;
A quadratic graph cannot show more than one translation, reflection, stretch or shrink at a time, from the graph of the parent function.
Answer:
I believe that is true
Step-by-step explanation:
False, a quadratic graph can show more than one translation of the parent function.