Carson is checking his work with Katie and finds that they disagree on a problem. Here’s what Katie wrote:
3x + 3 ≤ −2x + 5
3x ≤ −2x + 2
x ≤ 2
Is she right? Explain.
Answer:
-3 < 2x + 5 ≤ 7
Step-by-step explanation:
An inequality is a sentence with <, >, ≤, or ≥ as its verb. ... Similar statements hold for a ≤ b. ... To check, we can graph y1 = 3x - 5 and y2 = 6 - 2x. ... x ≤ 1. The solution set is {x|x ≤ 1}, or (-∞, 1]. The graph of the solution set is shown below. ... The sentence -3 < 2x + 5 ≤ 7 is an abbreviation for the preceding conjunction.
Claim: the standard deviation of pulse rates of adult males is more than 11 bpm. For a random sample of 171 adult males, the pulse rates have a standard deviation of 11.4 bpm find the value of the statistic
Answer:
182.58842
Step-by-step explanation:
Given that:
Sample size (n) = 171
Population standard deviation σ = 11
Sample standard deviation s = 11.4
males is more than 11 bpm. For a random sample of 171 adult males, the pulse rates have a standard deviation of 11.4 bpm find the value of the statistic
The test statistic :
X² = ((n - 1) / σ²) * s²
X² = ((171 - 1) / 11²) * 11.4²
X² = ((170) / 121) * 129.96
X² = 1.4049586 * 129.96
X² = 182.58842
The cost price of a washing machine is $15,480 if the selling priceis $17,000 what is the profit or loss
Answer:
profit
Step-by-step explanation:
the actual price is 15 480 and the seller sold it for 17 000
which he made a profit of 1520
Pls explain how to solve this problem pls ASAP if you know it pls!
Solve:
−7/3a+4=47/3
What is A
I will give extra points to who gets this right also will give brainliest
Answer:
a= -5
Step-by-step explanation
PEMDAS
Can someone help me!!
Answer:
$642
Step-by-step explanation:
To calculate sales tax, you multiply the percentage by the price. In this case it would be 600 x 0.07 which is 42. Then you add them together which would be 600 plus 42 which equals 642.
Gina has 7/8 pound of nuts that she wants to divide equally into 4 bags. How can Gina determine the amount of nuts she can put in each bag? For this problem Gina must divide a 1._________ by a 2. ________. The amount of nuts in each bag will be 3._________ 7/8 because 7/8 is 4._________ 4. Gina will be able to put 5._________ pound(s) of nuts in each bag. Word Bank 1. Fraction or Whole Number 2. Fraction or Whole Number 3. Less Than or Greater Than 4. Divided By or Multiplyed By 5. 7/2, 32/7, 7/2, 7/32
Gina must divide a fraction by a whole number.
The amount of nuts in each bag will be less than 7/8 because 7/8 is divided by 4.
Gina will be able to put 7/32 pounds of nuts in each bag.
In each bouquet of flowers, there are 5 roses and 8 white carnations. Complete the table to find
many roses and carnations there are in 5 bouquets of flowers.
There are (____) roses and (____) carnations in 5 bouquets
Answer:
25 roses and 40 white carnations
Step-by-step explanation:
Answer:
25 roses and 40 white carnations is the answer hope this helps:)
Step-by-step explanation:
What factors does Jenna need to model for the sides?
At a basketball game, 95% of people attending were supporting the home team, while
5% were supporting the visiting team. If 532 people attending the game supported
the home team, what was the total number of people attending the game?
Help
Answer:
3800
Step-by-step explanation:
Answer:
560 total people attending the game.
Step-by-step explanation:
95 : 100 = 532 : x
(95%) 95 is to 100 = 532 (the # of people supporting the home team) is to x (the total number of people attending the game)
x = (532*100) /95
x = 560 total people attending the game.
5% of 560 = 28 visitor team Supporters.
what is 6÷102??
for math
Which equation demonstrates the distributive property? A = 7(1+6)=7(6+1) B = (7x1) x 6 = 7(1x6) C = (7x1) x 6 = 7(6x1) D = 7(1+6) = (7x1) + (7x6) HELP END OF SEMSSTER
Answer:
D. 7(1+6) = (7x1) + (7x6)Step-by-step explanation:
Let A, B and C be any integer or function. According to distributive property;
A(B+C) = AB + AC
From the expression, you can see that A is distributed over B and C during the expansion.
Based on this same concept, the equation that demonstrates the distributive property from the given options is 7(1+6) = (7x1) + (7x6)
From the equation, you can see that 7 is distributed over 1 and 6 to give 7(1) + 7(6).
The remaining options demonstrates the commutative property.
plzzzz some one help I want step by step I'm confused What's 5⁄6 of £300
Answer: 15
Step-by-step explanation:
Jim wanted to find out what the audience thought about the debate. After the event, Jim stood at the exit to survey every fifth guest. Was this a random or a biased sample and why?
Answer: D. This was a random sample. It may have included anyone in attendance.
Step-by-step explanation:
The options are:
A. This was a biased sample. Jim should interview all in attendance.
B. This was a census. Any guest may have participated.
C. This was a random sample. It may not have included anyone in attendance.
D. This was a random sample. It may have included anyone in attendance.
A random sampling is simply referred to as a subset of individuals that are picked from a larger set of individuals.
With regards to the question, Jim wanted to find out what the audience thought about the debate and after the event, he stood at the exit to survey every fifth guest.
This means that it was a random sampling and anyone could have been picked, the sampling wasn't bias.
What is the solution of the equation x + 12.23 = 28.659?
X =
Answer:
X=16.429
Step-by-step explanation:
move the constant to the right
calculate
28.659-12.23
=
16.429
A basketball player has a 60% chance of
making each free throw. What is the
probability that the player makes exactly
five out of seven free throws?
Answer:
8/10
Step-by-step explanation:
Answer:
50%
Step-by-step explanation:
Whats the answer choices
-11/12 minus
3/8
Select one:
A.
-1 7/24
B.
-8/24
C.
8/4
D
-13/24
Answer:
A
Step-by-step explanation:
this is also -31/24 or -1 7/24 in mixed number form
yall pls help i would be very happy :)) Ill also give brainliest!
Which equation below would be perpendicular to the line x=5
a. y = 1/5x
b. y = 3
c. x =2
d. y = -5x
Answer:
A) y=1/5x
Step-by-step explanation:
Coz, the way you identify a perpendicular line is by looking for its negative reciprocal. The neagtive reciprocal of 5= 1/5
Now, to check the ans we can multiply the negative reciprocal by "m"
(m in y=mx+c or y=mx+b)
in this case the "m" is stated as 5, so all we need to do is 1/5*5 if the ans is 1 then your ans is right....and over here it is
So thats how you identify & check perpendicular lines!
Javier simplified the expression below. Find and
describe the three mistakes he made.
20x
- (203) = (5x®]* _ 5x * to
(5x®)» (20x)} – 20.x* *4
Answer:
Step-by-step explanation:
Javier did not raise the coefficients to the third power
When Javier raised [tex]x[/tex] to the third power, he wrote that [tex](x^1)^3=x^4[/tex], but it equals [tex]x^3[/tex].
In the last step, Javier divided the exponents. He should have used the quotient of powers property and subtracted them.
One week the music store sold 2 trumpets, 3 clarinets, and 5 violins for $1,240. The next week, they sold 3 trumpets, 1 clarinet, and 4 violins for $1,027. The following week, they sold 5 trumpets, 7 clarinets, and 2 violins for $2,091. Find the cost of a trumpet, clarinet, and violin.
Answers:
Trumpet:
Clarinet:
Violin:
Answer:
Cost of Trumpets: $174
Cost of Clarinets: $149
Cost of Violins: $89
Step-by-step explanation:
Got it correct
pls help me with this question.
Answer:
Option B
Step-by-step explanation:
Slope = Change in y / Change in x
Slope = (8 - 2) / {6 - (-4)}
Slope = 6 / (6 + 4)
Slope = 6 / 10
Slope = 3 / 5
So option B is your answer
On January 1, 2014, the federal minimum wage was $7.25 per hour. Which graph has a slope that best represents this rate? Will give brainliest!!
Answer:
the answer is c
Step-by-step explanation:
i did it on paper
HELP PLEASE!!! I just need someone to answer it so that this can help others!!!
Answer:
Bro its right
Step-by-step explanation:
Which statement best describes the effect of replacing the function f(x) = 2x − 2 with the function g(x) = 2x + 3? (1 point)
The graph shifts 1 units left.
The graph shifts 5 units left.
The graph shifts 1 unit right.
The graph shifts 3 units right.
Answer:
The graph shifts 5 units left
Step-by-step explanation:
The original function's k is -2. The second is 3. The difference from -2 and 3 is 5 units apart.
William is 11 years old. One day, his granddad took him and his younger brother to a basketball game. The tickets for the game were priced at $17 for adults (`a`) and $13 for children (13 years and younger) (`c`). What is the expression for the total cost of the tickets for William’s family and what was the total cost?
Answer:
43$
Step-by-step explanation: Three tickets total.
2 tickets cost 13$ =26
1 ticket 17 = 43 total
Hope this helped! God Bless!!
The total cost of the tickets for William’s family with 1 adult and 2 children is $43.
William's age = 11 years
Price for an adult = $17
Price for a child = $13
What will be the total number of tickets be bought?The total number of tickets to be bought will be 3 i.e. William, His Granddad, and William's younger brother i.e. 1 adult ticket and 2 children tickets.
Total price = price of 1 adult ticket + price for 2 children's ticket
Total price =17+2*13
Total price =17+26
Total price =$43
Therefore, the total cost of the tickets for William’s family is $43.
To get more about such arithmetic problems visit:
https://brainly.com/question/21405634
Micah sketches the graph below to represent a scenario his teacher gave him.
On a graph, a line goes through points (0, 2) and (2, 4).
Which scenario could Micah’s graph represent?
Valerie has $1 and then earns $2 per week (where x is the number of weeks) in allowance, for a total of y dollars.
Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.
Valerie earns $1 per week (where x is the number of weeks) in allowance and has spent $2, for a total of y dollars.
Valerie earns $2 per week (where x is the number of weeks) in allowance and has spent $1, for a total of y dollars.
The scenario represented by the linear function y = x + 2 is given by:
Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.For this problem, we have that:
The y-intercept is of 2, as when x = 0, y = 2.The slope is of 1, as when x changes by 2, y also changes by 2, hence m = 2/2 = 1.Thus the function is given by:
y = x + 2.
Which means that the initial amount is of $2, and increases by $1 for each unit of time, hence the correct option is:
Valerie has $2 and then earns $1 per week (where x is the number of weeks) in allowance, for a total of y dollars.
More can be learned about linear functions at https://brainly.com/question/24808124
#SPJ1
Answer:
b
Step-by-step explanation:
Please please help and show how you got the answer! I WILL MARK YOU AS BRAINLIEST
Answer:
DE < EF < DF
Step-by-step explanation:
since DE(16) is shorter then DF(23), DE < DF
EF's range is in the middle of DE and DF, so the correct answer would be
DE < EF < DF
Amy has a collection of dimes and quarters. If the expression
V=0.25x+0.10y
represents the total value of the coins Amy has, the expression 0.10y
most likely represents the ...........
Answer:
the value of the dimes
Step-by-step explanation:
The expression 0.10y most likely represents the number of dollars when all dimes are clubbed together.
What is a linear equation?A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
Amy has a collection of dimes and quarters. If the expression is given as,
V = 0.25x + 0.10y represents the total value of the coins Amy has.
The expression 0.10y most likely represents the number of dollars when all dimes are clubbed together.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ2
help me on this question
Answer:
Step-by-step explanation:
a) 16^ (-1/4)=2^4(-1/4)=2^-1=1/2
b) 27*9^3x=
we write 27=3^3
9=3^2*3x=3^6x
3^3 x 3^6x= k=3+6x
if m<1 = 3x - 3 and m<5 = 7x + 23, for what value of x is l||m
Answer:
x= 12
Step-by-step explanation: