Answer:
The probability of picking a nickel or a dime is 25%
Step-by-step explanation:
Since we have the same amount of nickels and dimes we can cancel them out. That would make it a 50% chance to get one or the other, or, a 1&1 chance, but since there is 8 coins all together there is a chance to pull out 2 nickels or 2 dimes. 4 possibilities.
1. 1 nickel 1 dime
2. 2 dimes
3. 2 nickels
4. 1 dime 1 nickel
4 x 25% = 100%
each possibility has a 25% chance to happen
The sum of two number is 21 the second number is six times the first one workout the two numbers
Answer: 3 and 18
Step-by-step explanation:
x + 6x = 21
7x = 21 Divide both sides by 7
x = 3 That's the first number. Multiply by 6 for the second number:
6 × 3 = 18
NEED HELP!! what makes this equation true enter the answer in the box ÷ 8 = 4
Answer:
32 divided by 8 =4 Just multiply 4 and 8 to get your answer.
Step-by-step explanation:
Hey! hoped I helped Im Eve btw Have an amazing day and consider marking this as brainliest if you do thank you in advance!
Is 5 a solution to the equation x + 3 = 8
______________________________
1.) Subtract 3 from both sides:[tex]3-3=[/tex] Cancels Out[tex]8-3=5[/tex]
- When solving problems like these (One-Step Equations,) to get x alone you must do the opposite of what you see.
- In this situation we have a positive 3. So to get rid of both numbers you do the opposite: Opposite of +3 is -3. So you subtract 3 from each number.
______________________________
Algebra 1 plz help me
Answer:
Step-by-step explanation:
solution is (4,3)
OR
x=4
y=3
this point lies in both the tables.
we have to find a pair which lies on both.
If P=(-3,5) and Q=(1,9), find the midpoint of the segment PQ
Answer:
[tex](-1,7)[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
Point P(-3, 5)
Point Q(1, 9)
Step 2: Find Midpoint
Simply plug in your coordinates into the midpoint formula to find midpoint
Substitute {MF]: [tex](\frac{-3+1}{2},\frac{5+9}{2})[/tex]Add: [tex](\frac{-2}{2},\frac{14}{2})[/tex]Divide: [tex](-1,7)[/tex]If 3x+2=6 what is the value of x
Answer:
x=1.33
Step-by-step explanation:
3x+2=6
3x=4
x=[tex]\frac{4}{3}[/tex]
x=1.33
to check your answer
3 x 1.33 + 2=6
3.99+2=6
5.99=6
6=6
A triangle has side lengths of (1.3k+3.5m)(1.3k+3.5m) centimeters, (4.1k-1.6n)(4.1k−1.6n) centimeters, and (9.7n+4.4m)(9.7n+4.4m) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?
Answer:
(5.4k+7.9m+8.1n) centimeters
Step-by-step explanation:
Given the side length of a triangle;
S1 = (1.3k+3.5m) cm
S2 = (4.1k-1.6n) cm
S3 = (9.7n+4.4m) cm
Perimeter of the triangle = S1+S2 + S3
Perimeter of the triangle = (1.3k+3.5m) + (4.1k-1.6n) + (9.7n+4.4m)
Collect the like terms;
Perimeter of the triangle = 1.3k+4.1k+3.5m+4.4m-1.6n+9.7n
Perimeter of the triangle = 5.4k+7.9m+8.1n
Hence the expression that represents the perimeter of the triangle is (5.4k+7.9m+8.1n) centimeters
Erica purchased adult and youth tickets for a movie. She bought x adult tickets for $7 each and y youth tickets for $5. Write an expression that can be used to show the total cost, C, of all tickets.
PLZ HELP IM FALING :o
i will give brainlyest
Answer:
C = 7x + 5y
Step-by-step explanation:
Algebraic Expressions
Erica purchased tickets for a movie. It's given each adult ticket cost $7 and each youth ticket cost $5.
If each adult ticket cost $7 and she bought x tickets, then she spent 7x dollars on adult tickets.
Similarly, if each youth ticket cost $5 and she bought y tickets, then she spent 5y dollars on youth tickets.
The total cost C is the sum of the individual costs, thus:
C = 7x + 5y
A child has 60 total coins. There are ten times as many nickels as there are quarters (q) and twelve more dimes than quarters. Write an equation to represent this situation
Answer:
10q+q+(12+q)=60
-3(4x-2)-2 is equvalnt to what eqatuion
Answer:
−12x + 4
Step-by-step explanation:
Distribute:
= ( − 3 ) ( 4x ) + ( − 3 ) ( − 2 ) + − 2
= − 12x + 6 + − 2
Combine Like Terms:
= − 12x + 6 + − 2
= ( − 12x ) + ( 6 + − 2 )
= − 12x+4
Ms. Moneyhun's son, Sam, just learned to crawl. He can crawl 20 ft in one minute. How many feet can Sam crawl in one hour? (Hint: there are 60 minutes in one hour)
Answer:
1200 ft in one hour
Step-by-step explanation:
The ratio of Sam crawling 20 ft in one minute can be written as:
20:1
Multiply the ratio by 60 to get the minutes to 60 minutes, because there are 60 minutes in an hour:
20 : 1
×60 ×60
To get:
1200:60 ⇒ This means Sam can crawl 1200 ft in 60 minutes, which is the same as 1200 ft in one hour.
Hope this helps! :)
help plzzzzz what is it????
Answer:
Pretty sure its C becuase there is no “people” on the graph.
Answer:x is 8 y is 4
Step-by-step explanation:
Will give crown will post more
Answer:
2, 7, 27, 42
Step-by-step explanation:
y = 5*1 -3 =2
y = 5*2 -3 =7
y = 5*6 -3 = 27
y = 5*9 -3 = 42
Answer:
See below
Step-by-step explanation:
[tex]y = 5x - 3 \\ \\ \begin{vmatrix}x &\: \: \: y \\ \\ 1&\: \: \: \boxed{\red {\bold 2} } \\ \\ 2&\: \: \: \boxed{\purple {\bold 7} }\\ \\ 6&\: \: \: \boxed{ \orange {\bold {27} } } \\ \\ 9&\: \: \: \boxed{\pink{\bold {42} } } \end{vmatrix}[/tex]
Cheddar cheese cost 4.25 per pound. Which equation best represents y, the cost of x pound of cheddar cheese
Answer:
y = 4.25x
Step-by-step explanation:
Cheddar cheese cost 4.25 per pound . This means the cost of cheddar cheese is 4.25 for every pound in weight. Assuming we put a currency to the value we can say 1 pound of cheddar cheese is equals to 4.25 dollars($4.25). Mathematically, it can be represented as
4.25 is the cost for 1 pound of Cheddar cheese
Let the cost of the equation be y as required from the question.
y = cost of the cheddar cheese
x is the weight value in pounds of the Cheddar cheese.
The equation can be best represented as
y = 4.25x
In the equation above if the amount in pounds is 3 pound . the value will be inputted for x and the cost will be gotten which is y.
hope this helps!:)
A school district has decided that students in grades 7 through 12 should receive 400 minutes of physical education every 10 school days. A gym teacher at one of the schools believes that his students are not meeting this criterion. She randomly selects 50 students and it is found that her students have a mean of 385 minutes and a standard deviation of 55 minutes. Is this evidence to support her claim?
Answer:
Yes
Step-by-step explanation:
Based on the information provided we can say that Yes, this is enough evidence to support her claim. Since the 50 students were randomly selected and the physical education criteria applies to all of the students in that grade range then these 50 students perfectly represent the total population. That being the case, the results gathered to show that with a standard deviation of 55 minutes some students are surpassing the requirement by very little but others are falling very far from that requirement. When it is a requirement for all of the students in that grade range. Therefore, it is enough to support her claim.
HELPPP!!!!!!
Tiana and Vince are practicing their typing skills in computer science class. They both typed the same number of words, but Tiana took less time. They are participating in a typing competition next week. In the competition, they will have the same amount of time to type. Who will likely type more words during the competition?
Answer:
tiana
Step-by-step explanation:
because she took less time in the practise
Answer:
Tiana
Step-by-step explanation:
It is Tiana because she took less time while practicing.
Was I correct? I was having a bit of trouble on C and D :(
Answer:
You got A and D is right but C and B is switched
Step-by-step explanation:
The main thing is to first look at the y-intercept, C and B have different y-intercepts than the equation u gave them. So keep an eye out for that.
Which of the following numbers is between 0.40 and 0.47?
A) 7/50
B) 19/50
C) 21/50
D) 43/50
Answer:
C. 21/50 because 21/50 written in a decimal is 0.42
Please Help!!
What is the value of cell C2?
A. 2
B. 24
C. 50
4. 64
Answer:
B.) 24
Step-by-step explanation:
I need help ASAP pls help me!!:/
Answer:
if i am right it yes yes no
Step-by-step explanation:
Solve the equation for y.
10x -4y = -20
Answer:
y=5+5/2x
Step-by-step explanation:
1. Jason bought a shirt for 30.00 he paid 15% in sales tax. What is the total
cost of the shirt after the sales tax?
Answer:
34.50
Step-by-step explanation:
multiply 30 times 0.15 to get 4.50 then just add that to 30 for 34.50
a car rental company charges an initial fee plus a fee per kilometer driven. if a car drives 105 kilometers and pays 183 dollars what is the company's initial fee
Answer:
a
mark
me
brainlist
omg
Step-by-step explanation:
If rong let
p
l
e
a
s
.
me know
the answer is 100 dolers$
a long-distance telephone call costs $1.65 for the first 3 minutes and $0.42 for each additional minute. how much will a 23-minute call cost
Answer:
About $43.69.
Step-by-step explanation:
1.65+0.42t=20 you minus the 3 minutes from the 23 minutes because those are paid for by the 1.65. Then for every extra minute, you pay 42 cents.
1.65+0.42t=20
Subtract the 1.65
0.42t=18.35
t≈43.69
help pls lol ✋
i literally do not get this at all and i’m typing this cause apparently i need 20 words which is dumb but yeah okay bye
The number of water bottles used during a teams football practice varies directly with the temperature. If a team uses 75 water bottles when the temperature is 60 degrees, what is the temperature if they use 120 bottles?
Answer: If a team uses 75 water bottles when the temperature is 60 degrees, ( 75 - 15 = 60 )
I guess if they have 120 bottles, you'd have to take away 15 again, which = 105
-----------------------------------------------------------------------------------------------------------------
Sorry if i'm wrong
which COULD be the new coordinates of point D?
Answer:
It is B
Step-by-step explanation:
4, -4 is longer than 2 units
-2, -2 is longer than 2 units
-1, -4 is longer than 2 units
–2 • 4? what is the anserw do you now
Answer:
Step-by-step explanation:
-8 because a negative times a positive is a negative so w times 4 equals I and since it’s a negative sign it’s -8
Identify all values in the five number summary and create a box plot for the data set below.
You can upload your 5 number summary and box plot in the last question or provide a link to your work in the text box.
14, 13, 16,16, 18, 20, 22, 19, 23, 24, 24, 26, 27, 28, 30, 32
Answer:
12345
Step-by-step explanation:
give me a brainliest plees
Answer:
you can create your box plot from the following answers
a) minimum = 13
b) first quartile = 17
c) median = 22.5
d) third quartile = 26.5
e) maximum = 32
e) interquartile range = 26.5 - 17 = 9.5
Step-by-step explanation:
minimum and maximum values are self-explanatory
first quartile is derived by getting the median of the lower half of data (the median will divide the data into the lower half and the upper half)
third quartile is derived by getting the median of the upper half of data
the median is sometimes referred to as the second quartile
box plots are all about quartiles so that you can see where 25% of the data reside, or 50% or 75%, etc
WORTH 15 POINTS!! - Eileen's Energy Bars has determined that an energy bar measuring 3.25 inches long has a z-score of +1 and an energy bar measuring 3.50 inches long has a z-score of +2.
What is the standard deviation of the length of energy bars produced at Eileen's Energy Bars?
3.5
3.25
0.75
0.25
Answer:
0.25
Step-by-step explanaition:
The z-score represents how many deviations a value is from the mean. When the bar measures 3.25, the z-score is +1. When the bar measures 3.50, the z-score is +2. You'll notice that whenever the bar size increases by 0.25, the z-score goes up +1. So, the standard deviation from the mean must be 0.25.
Answer:
0.25
Step-by-step explanation:
i took the test