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Related Questions
PLEASE MAKE ANSWER CLEAR
Sandy has a total of 35 coins in her money jar. If Sandy's jar contains only nickels and dimes and the value ol
the coins is $2.50, how many nickels does Sandy have?
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let nickel be x, dime be y
x + y = 35 ... ( 1 )
5x + 10 y = 250
5 ( x + 2y ) = 250
x + 2y = 50 ... ( 2 )
in ( 1 )
x = 35 - y ( 3 )
sub ( 3 ) into ( 2 )
( 35 - y ) + 2y = 50
y = 15
sub y into ( 1 )
x + y = 35
x + 15 = 35
x = 20
therefore, Sandy has 20 nickels and 15 dimes
Since there are no restrictions on the strings, we can think of this problem as drawing 5 random digits in sequence. There is a 9/10 chance each time we draw to NOT get a 4. Every time we draw, we multiply by 9/10 again until we've draw 5 digits. Thus, the answer is (9/10)^5 :)
Answers
Answer:
[tex]Pr = 0.59049[/tex]
Step-by-step explanation:
See Comment for Complete Question
Given that A has 5 digits. A digit in A can be chosen from 0 to 9 (10 digits).
However, selection without 4 means that we can only select from 0 to 3 and 5 to 9 (altogether, that is 9 digits)
The probability of selecting a number other than 4 in each of the digit is:
[tex]1st \to \frac{9}{10}[/tex]
[tex]2nd \to \frac{9}{10}[/tex]
[tex]3rd \to \frac{9}{10}[/tex]
[tex]4th \to \frac{9}{10}[/tex]
[tex]5th \to \frac{9}{10}[/tex]
So, the required probability is:
[tex]Pr = 1st * 2nd * 3rd * 4th * 5th[/tex]
[tex]Pr = \frac{9}{10} *\frac{9}{10} *\frac{9}{10} *\frac{9}{10} *\frac{9}{10}[/tex]
[tex]Pr = \frac{9^5}{10^5}[/tex]
[tex]Pr = \frac{59049}{100000}[/tex]
[tex]Pr = 0.59049[/tex]
Priya makes bracelets for her online store. Her monthly business expenses are $520. She sells an average of 80 bracelets per
month. Based on the inequality below, if she wants to profit at least $1,240, how much should she charge, b, per bracelet?
80b - $520 > $1,240
A. Priya needs to charge at most $19 per bracelet.
B. Priya needs to charge at least $22 per bracelet.
C. Priya needs to charge at most $22 per bracelet
D. Priya needs to charge at most $29 per bracelet.
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Answer:
B
Step-by-step explanation:
Profit = total revenue - total cost
total revenue = 80 x b
total cost = 520
the profit has to be at least $1240
80 x 22 = 1760
1760 - 520 = 1240
b is correct
Someone help me with this pls
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Answer:
=6 ^-6 / 6^5
= 6^ -6+5
= 6^-1
Which is the net for this rectangular prism?
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Answer:
Bottom right option
Answer: i think bottom right
Step-by-step explanation:
I did the i-ready
wriye each expression with fewer terms.Show your work or explain your reasoning 10x-2x 10x-3y+2x
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Answer:
20x-3y
Step-by-step explanation:
combine the like terms
so first do 10x-2x=8x
then you're gonna add from the line the 10x and the 2x which is going to give you 20x
no finally you are left with one number with the y variable, that is 3y.
Therefore your answer is 20x-3y
HELPP PLEASEEE
NO LINK!!
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Answer:
the g
[tex]graph \: increseas \: then \: decreaes[/tex]
which of the following points would be a solution to this system of liner inequalities?
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Answer:
The solution to the system is all the points that satisfy both inequalities or the region in which the shading overlaps. Given the system of linear inequalities shown in the graph, let's determine which points are solutions to the system. The point (0, -1) is not a solution to the system of linear inequalities.
Step-by-step explanation:
thank me later
An .
Step-by-step explanation:
how cares
What is the surface area,in square centimeters,of the square pyramid
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Answer:
56 sq cm
Step-by-step explanation:
SA = Area of Base + 1/2·(Perimeter of Base)·(Slant height)
= 4² + 1/2(4x4)(5)
= 16 + 1/2(16)(5)
= 16 + 40
= 56
if you roll a dice one time what is the probability for it to land on a number greater than 2
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Answer:
4/6
Step-by-step explanation:
This is because there is 6 sides to a dice and the side with 1 and 2 are the only sides with numbers less than 2. So only 4 sides out of the 6 can be greater giving the answer 4/6!
PLEASE HELP ME OUT. I am struggling bad
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Answer:
WXV=87° because they are opposite angle
Step-by-step explanation:
frist we need to find TU
TU=1/2×87°
TU=43.5
WSTU is half circle =180°
WS+ST+TU=180°
72°+43.5+ST=180°
115.5+ST=180°
ST=180°-115.5
ST=64.5°
the measurement of UV=wu-x
UV=180°-87°
UV=93° the inner angle that made by UV
the arc of UV1/2=93° cross production
UV=46.5
vst i didn't understand
i help you???
7676767676767676767676767
Answers
Answer:
uhhh is this a trick question lol
have a good day :D
Step-by-step explanation:
In circle H with m ∠ G H J = 90 m∠GHJ=90 and G H = 20 GH=20 units, find the length of arc GJ. Round to the nearest hundredth.
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Answer:
180
Step-by-step explanation:
length of arc GJ ≈ 31.42 units.
What is the arc of a circle?A circle's arc is a bent portion of the circle's circumference. Its perimeter is determined by its two ends and the area of the circle that lies in between them. An arc's length or the angle it makes with the circle's center can be used to measure it.
The formula L = θr states that the length of an arc is inversely proportional to the radius of the circle and the angle it subtends. L is the length of the arc, r is the radius of the circle and θ is the angle the arc subtends in radians.
To find the length of arc GJ, we first need to find the circumference of the circle.
The circumference of a circle is given by the formula:
C = 2πr
where C is the circumference, π is a constant approximately equal to 3.14, and r is the radius of the circle.
Since GH = 20 units and HJ is the radius of the circle, we have:
HJ = GH = 20 units
So the radius of the circle is 20 units.
The formula for the length of the arc is 2πr(θ/360)
Since the angle is given 90, the length of the arc:
2*π*20(90/360)
=10 π
Therefore, the length of arc GJ is 10π or 31.42 units.
Learn more about arc here:
https://brainly.com/question/16930503
#SPJ2
.Find the point of intersection of the pair of lines. x + 5y = 8, -x + 2y = -1
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Answer:
the point of interception is where the graphs meets
in this case we will solve using substition method
x + 5y = 8 .... 1
-x + 2y = -1 .....2
solve for the equation
x = 8 - 5y ...... 3
solve the equation in equation 2
-x + 2y = -1
-(8-5y ) + 2y = -1
-8 +5y + 2y = -1
7y = -1 + 8
7y = 7
divided by 7 on both sides
y = 1
solve the value of y in equation 3
x = 8 - 5y
x = 8 - 5(1)
x = 8 -5
x = 3
the point of interception (3 ; 1)
help please please please
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Answer:1152 miles
Step-by-step explanation: we know he can drive 384 in 6 hours so if we multiply 6 by 3 its 18 so we must multiply 384 by 3 and the answer would be 1152
Given the three functions: f(x)=4(2) g(x)=8x² + 24x , and h(x)= 4x + 8
Label each function as quadratic, linear, or exponential.
f(x)=
g(x)=
h(x)=
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Answer:
f(x)=exponential
g(x)= quadratic
h(x)= linear
Step-by-step explanation:
exponential function
[tex] {ab}^{x} [/tex]
Quadratic function
[tex]a {x}^{2} + bx + c[/tex]
Linear function
[tex]y = mx + c[/tex]
Hi there!
[tex] \large \boxed{ y = {a}^{x} \: \: (a \neq 0, \: a > 1)}[/tex]
The equation above is an exponential family type.
[tex] \large \boxed{y = a {x}^{2} + bx + c \: \: (a \neq 0)}[/tex]
The equation above is quadratic type.
[tex] \large \boxed{ y = mx + b}[/tex]
The last type above is a linear type.
Hence, the answers are:
f(x) = exponentialg(x) = quadratich(x) = linearMara put down 7.5% on the purchase of her new
home. If she put down $14,175 find the purchase
price of her home.
Answers
Answer: $189 000
brainliest or a thank you please :))
goodluck!
Answer:
$189,000
Step-by-step explanation:
,Correct me if I'm wrong :D
Please help me with 20,21 please
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Answer:
Step-by-step explanation:
cool good luck
Rebecca asked the people in her homeroom class what their favorite type of pizza was. If 18
out of 25 people said pepperoni, how many people would you expect to choose pepperoni
out of 350 people?
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Answer:
x = people who chose pepperoni = 252
Step-by-step explanation:
Number of people : people who chose pepperoni = 25 : 18
how many people would you expect to choose pepperoni
out of 350 people?
Let x = people who chose pepperoni
Number of people : people who chose pepperoni = 350 : x
Equate both ratios
25 : 18 = 350 : x
25/18 = 350/x
Cross product
25*x = 18*350
25x = 6,300
x = 6,300/25
x = 252
x = people who chose pepperoni = 252
what is ( 40 + 40 ) + 6-1 ? it's an iready problem
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Jay wants to spend less than $80 He plans to buy a pair of jeans that cost $19.99 and some shirts that cost \$14.99 each Write an equation or inequality to represent the number of shirts Jay can buy Define all variables used • What is the greatest number of shirts that Jay can buy while spending less than $80 ? Show your work
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Answer:
give me brainllest if it is right
a. $19.99 + $14.99 = $34.98
b. Jay can buy 5 shirts without spending more than $80
Step-by-step explanation:
Triangle OPQ is similar to triangle RST. Find the measure of side ST. Round
your answer to the nearest tenth if necessary.
T
Q
17.5
O
P
13
R
S
60
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Answer: 80.8
Step-by-step explanation:
Ayee just trust me
70 = 10 x 7
Which statement BEST describes the relationship shown in
the equation.
A) 70 is 10 greater than 7
B) 10 is 7 times larger than 70
C) 70 is 10 times as many as 7
D) 70 is 7 plus 10
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Answer:
C
Step-by-step explanation:
*** 10 points**** if you help me
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Answer:
h squared is 65 but h is 8.06
Step-by-step explanation:
use the pythagorean theorem
7^2+4^2=
49+16= 65
square root of 65 is 8.06
hope this helps
Books read by different students : 5,7,8,10,12,13,29
Answers
Answer:
What are you asking for the mean?
Step-by-step explanation:
..............................help
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[tex]F = \frac{9}{5} c + 32[/tex]
This Equation Is Used For Conversion Of Celcius To Fahrenheit.
Hope This Helps You ❤️Answer: Uhmm ok the answer i got would have been F = C x 9/5 + 32 But since there isn't a choice like that I think it's the second one- its the closest to what i got--
Step-by-step explanation:
A plumber has a set fee for a house call and charges by the hour for repairs. The total cost of
her services, in dollars, can be modeled by p(t) = 110t + 85, where t represents the number
of hours the job takes. State the meaning of the slope and y-intercept of this function with
respect to the costs associated with the plumber's services. Please show work
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Answer:
slope is the hourly rate of $110/hr
y-intercept is the set fee of 85
Based on the graph below, what is the solution of the equation f(x) = g(x)?
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Answer:
1st option
Step-by-step explanation:
The solution to f(x) = g(x) is at the points of intersection of the 2 graphs
The graphs intersect at
x = - 3.5 and x = - 0.5 ← solutions
can someone help me on this question please
Answers
Answer:
y = -2x + 5 [ 1st option ]
Step-by-step explanation:
Consider any two points , say
(1,3) (2,1)Firstly let's find the slope of the line as ,
=> m = y₁ - y₂ / x₁ - x₂
=> m = 3-1 / 1-2
=> m = 2/-1
=> m = -2
Third point is, (3 , -1) . Using slope point form .
=> y - y₁ = m ( x - x₁ )
=> y - (-1) = -2( x - 3)
=> y + 1 = -2x +6
=> y +2x +1-6=0
=> y +2x -5 = 0
=> y = -2x + 5
On looking at options first one is correct
Hence the equation of line is y = -2x + 5.A researcher spoke to 20 people running a marathon in which 1,400 people participated. Of those 20 people, 5 competed only in professional sporting events, 12 competed in only amateur sporting events, and the rest competed in both. What was the population size for this study?
A. 5
B. 12
C. 20
D. 1,400
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Answer:
Step-by-step explanation:
The population size is everybody running the race. It does not include people watching the race and it is not confined to just the 20 people the researcher talked to.
If it doesn't limit itself to the 20 people, then the 5 and 12 and 3 people are also too limiting.