Answer:
-8
Step-by-step explanation:
q - r
-14 - (-6)
-14+6
-8
A survey found that 75% of guitar players recommend starting with the acoustic guitar if you are a beginner. Out of 40 guitar players, how many guitar players would you expect to recommend the acoustic guitar?
***USE PENCIL AND PAPER TO SOLVE THE PROBLEM!!!
20%
15%
30%
80%
Answer:
15
Step-by-step explanation:
I can't do it on paper, so I'll type it up for you so you can copy it down.
'Percent (%)' means 'out of one hundred':
75% = 75 'out of one hundred',
p% is read p 'percent',
75% = 75/100 = 75 ÷ 100.
'Percentage' is obtained by multiplying 20 by 75%.
75% × 20 =
(75 ÷ 100) × 20 =
(75 × 20) ÷ 100 =
1,500 ÷ 100 =
15;
The answer is 15.
Hope this helped!
Answer:
15
Step-by-step explanation:
Which of the following is a continuous random variable?
a. The number of goals scored in a hockey game
b. The number of correct answers on a multiple-choice test
c. The heights of children in a preschool
d. The number of houses for sale in a city
Answer:
The correct answer is:
c) The heights of children in a preschool
Step-by-step explanation:
Continuous variables are variables that can take on any value in a measuring series and scale. There is no limit to the possibilities of the data in a continuous variable. In this example, the heights of children can take on an infinite number of values, it may be 0.5m, 0.43m, 0.33m, etc.
Discrete variables, on the other hand, are variables that are obtained by counting. There is a limit to the possibilities that the values in this category can take on. For example, when counting the number of goals in a hockey game, it can be 2 goals, 10 goals 20 goals, but you cannot count 15.5 goals or 22.2 goals, the number is a whole discrete number. Hence options a, b and d are discrete variables.
1. A jeweler uses 125 inches of silver wire to make 50 loop earrings. At this rate, how many inches of silver wire are
needed to make 1 loop earring?
O A. inches
ОВ.
inches
OC. 2 inches
OD. 5 inches
Lori needs a length of twine 8.5 meters long to mark a
row in her garden. Andrew needs a length of twine 7.25 meters long for his row. They have one length of twine that measures 16.27 meters. After they each take the lengths they need, how much twine will be left
Answer:
0.52
Step-by-step explanation:
7.25 + 8.5 = 15.75
16.27 - 15.75 = 0.52
hope this helped!
Find the rate of ounces of water needed for each packet of flavoring
Answer:
24 ounces/ 2 packets = 12 ounces/ packet
Step-by-step explanation:
23 (12 ounces/packet) = 276 ounces of water
The the rate of ounces of water needed for each packet of flavoring would be 12.
What is a mathematical function, equation and expression?function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.equation modelling : Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis and results of the given problemGiven is the packets of flavoring added to an specific amount of water to make soup.
Now, for 24 ounces of water, 2 packets of flavoring are needed.
Then, for 1 packet of flavoring, (24/2) or 12 ounces of water is needed.
For 5 packets of flavoring, (12 x 5) or 60 ounces of water is needed.
So, the rate of ounces of water needed for each packet of flavoring would be -
r = (60 - 24)/(5 - 2)
r = 36/3
r = 12
r = 12
Therefore, the the rate of ounces of water needed for each packet of flavoring would be 12.
To solve more questions on functions, expressions and polynomials, visit the link below -
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20 POINTS AND BRAINLIEST!!!! PLEASE HELP!!!
Explain how the Distributive Property can be used to eliminate the fractions in the equation 15x+8=110x+9.
Answer:
x= -1/95
Step-by-step explanation:
Step 1: Subtract 110x from both sides.
15x+8−110x=110x+9−110x
−95x+8=9
Step 2: Subtract 8 from both sides.
−95x+8−8=9−8
−95x=1
Step 3: Divide both sides by -95.
−95x
−95
=
-1/95
x=
−1/95
Using distributive property the solution of the equation is x= −1/95
What is distributive property?The distributive property states that an expression of the form A(B + C) can be solved by a multiplication over addition operation that is
A(B + C) = AB + AC
This property is known by distributive law and applies to subtraction also.
Given that the equation; 15x + 8 = 110x + 9.
Step 1: Subtract 110x from both sides.
15x + 8 − 110x = 110x + 9 − 110x
−95x + 8 = 9
Step 2: Subtract 8 from both sides;
−95x + 8 − 8 = 9 − 8
−95x = 1
Step 3: Divide both sides by -95;
x= −1/95
Hence, Using distributive property the solution of the equation is x= −1/95
Learn more about the distributive property here;
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What is the equation of the following line? Be sure to scroll down first to see
all answer options.
(0, 0)
(3,-9)
If the mean GPA among students is 3.25 with a standard deviation of 0.75, what is the probability that a random sample of 300 students will have a mean GPA greater than 3.30
Answer:
The value is [tex]P(X > 3.30) = 0.12405[/tex]
Step-by-step explanation:
From the question we are told that
The mean GPA is [tex]\mu = 3.25[/tex]
The standard deviation is [tex]\sigma = 0.75[/tex]
The sample size is n = 300
Generally the standard error of mean is mathematically represented as
[tex]\sigma_{\= x} = \frac{\sigma }{\sqrt{n} }[/tex]
=> [tex]\sigma_{\= x} = \frac{0.75}{\sqrt{300} }[/tex]
=> [tex]\sigma_{\= x} = 0.0433[/tex]
Generally the probability that a random sample of 300 students will have a mean GPA greater than 3.30 is mathematically represented as
[tex]P(X > 3.30) = P(\frac{X - \mu}{\sigma_{\= x}} > \frac{3.30 -3.25}{ 0.0433} )[/tex]
[tex]\frac{\= X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ \= X )[/tex]
[tex]P(X > 3.30) = P(Z> 1.155 )[/tex]
From the z table the probability of (Z > 1.155 ) is
[tex]P(Z> 1.155 ) = 0.12405[/tex]
[tex]P(X > 3.30) = 0.12405[/tex]
Which number has exactly 3 factors?
2-4-6-8
Answer:
4
Step-by-step explanation:
the factors are 1,2,4
Forty-seven students go on a field trip. The students are divided into groups of 6 students. How many groups of 6 will there be?
Answer:
7 kids per group
Step-by-step explanation:
47 students
6 kids per group
47 divided by 6 = 7.83
You can split 1 kid, so round down to a whole number.
7 kids per group
Answer:
47dividedby6equals7.833333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333
Step-by-step explanation:
google.
2/21 into a decimal for pasted do work
Answer:
0.0952381
Step-by-step explanation:
you divide 21 from 2 (2/21)
Consider the expression 5a + (-2b), where a < 0 and b < a.
Is the sum always positive, always negative, or does it vary?
Support your answer.
Answer:
positive
Step-by-step explanation:
Find the ordered pairs for the x- and y-intercepts of the equation 3x − 2y = 18 and select the appropriate option below. (5 points)
The x-intercept is (3, 0); the y-intercept is (0, –2).
The x-intercept is (6, 0); the y-intercept is (0, –9).
The x-intercept is (0, 6); the y-intercept is (–9, 0).
The x-intercept is (0, 3); the y-intercept is (–2, 0).
Answer:
The correct answer is (second option):
The x-intercept is (6, 0); the y-intercept is (0, –9).
Step-by-step explanation:
Intercepts of a real function
Given a function y=f(x), the x-intercepts of f are those values of x that make y=0. The y-intercepts are those values of y that make x=0.
Our function is:
3x - 2y = 18
To find the x-intercept(s), we set y=0:
3x - 2(0) = 18
3x = 18
Solving:
x = 18 / 3 =6
The x-intercept is the point (6,0)
Now for the y-intercept(s), we set x=0:
3(0) - 2y = 18
-2y = 18
Solving:
y = 18 / (-2) = -9
The y-intercept is the point (0,-9)
The correct answer is (second option):
The x-intercept is (6, 0); the y-intercept is (0, –9).
The x-intercept is (6, 0); the y-intercept is (0, –9).
3.
Which of the following numbers is/are positive ?
1
(A) In 2 + In 3 + In 0.161
(B) In 3 + In(1.4) - In 16
Answer:
Neither expression (A) nor expression (B) would be positive. A calculator is not required.
Step-by-step explanation:
Assume that [tex]A[/tex] and [tex]B[/tex] are both positive real numbers. Consider the property of logarithms with the same base:
[tex]\ln A + \ln B = \ln(A \cdot B)[/tex].
[tex]\displaystyle \ln A - \ln B = \ln\left(\frac{A}{B}\right)[/tex].
Apply these two properties to combine the logarithms in each expression into a one.
First expression:
[tex]\begin{aligned}&\ln 2+ \ln 3 + \ln 0.161 \\ &= \ln(2 \times 3) + \ln (0.161) \\ &= \ln(2 \times 3 \times 0.161) = \ln(0.966) \end{aligned}[/tex].
Second expression:
[tex]\begin{aligned}&\ln 3+ \ln (1.4) - \ln 16 \\ &= \ln(3 \times 1.4) - \ln (16) \\ &= \ln\left(\frac{3 \times 1.4}{16}\right) = \ln(0.2625) \end{aligned}[/tex].
The logarithm of a real number is positive if and only if that number is greater than one.
Neither [tex]0.966[/tex] nor [tex]0.2625[/tex] is greater than one. Therefore, neither of their respective logarithms would be positive.
5/2÷9/4_________________
Remember, the trick to dividing fractions is to use keep/change/flip.
First, keep your 5/2 the same. Second, change your division sign to a multiplication sign. Third, flip your 9/4 to get 4/9. Multiply!
Mixed number form: 1 1/9
Exact form: 10/9
Decimal form: 1.1 repeating
Hope this helps!
-abagalecoleman
3x−8 ≤ 23 OR −4x+26≥6
Answer:
x≤31/3 for 3x−8 ≤ 23 and x≤5 for −4x+26≥6
Step-by-step explanation:
I just solved it
hope it's right.
A is the correct answer
Pick two sentences that use ratios to describe the number of eyes and legs in this picture.
"A hippopotamus with 2 eyes and 4 legs and a giant turtle with 2 eyes and 4 legs."
Group of answer choices
The ratio of legs to eyes is 8 to 4.
There are 2 legs for every eye.
There are 4 legs for every 4 eyes.
The ratio of eyes to legs is 8 : 4 .
Answer:
its d
Step-by-step explanation:
Sam joined Workout 24 for fifteen months. How much did he pay total
Answer:
$1025
Step-by-step explanation:
There's an answer guide on google
On a farm there are 50 sheep and a farmer how many feet are there in total
Answer:
200 sheep legs and 2 farmer legs, or 202 legs in total.
Step-by-step explanation:
One sheep has 4 legs. and there are 50 sheep. So, we have to multiply 50*4 to get 200. Then, we have to add the two legs the farmer has. 200 + 2 = 202. Therefore, there are 202 legs on the farm.
y = 5/7x +2
y = 5/7x - 30
These lines are...
Answer:
Parallel
Step-by-step explanation:
I just used desmos, which is an online graphing calculator
Answer:
the lines are parallel
Help me pleaseeeee!
Answer:
J. I think thats your best answer. if not then it's H
Answer:
J. m<A = 50
Step-by-step explanation:
<A is an opposite interior angle to 50, therefore they are both the same
hope this helps :)
A train is traveling at a constant speed and goes 7.5 kilometers in 6 mins. At that rate how far does the train go in 100 mins?
Answer:
125 kilometers
Step-by-step explanation:
7.5/6 = 1.25
1.25 x 100 = 125
The Multi-Color Candy factory is out of control! The bag filling machine filled one bag with 75 candies of various colors, but 60% are red. A second bag had 80 candies, but only 40% are red. A third bag had 90 candies, but only 20% are red. If all three bags are emptied into a bowl, what percentage, to the nearest whole percent, of the total candies in the bowl are red? (Do NOT include punctuation in your answer.)
Answer:
120 percent
Step-by-step explanation:
60 plus 40 plus 20 equals 120 percent
Answer:
Its 39
Step-by-step explanation:
Its 39 trust me
What is the mean of: 3.7, 5, 9.2, 4, 6.1, 5, 2.6, 4, 5.2, 5?
PLEASE HELP ILL PICK YOU BRAINLIEST!!!!!!!
Answer:
4.98
Step-by-step explanation:
Mean is the same thing as average, so add them up and divide them by the total amount of numbers there are (which is 10)
A committee consists of 8 men and 11 women. In how many ways can a subcommittee of 4 men and 7 women be chosen
Answer:
23100 ways
Step-by-step explanation:
We have 8 men and 11 women
Number of ways of choosing a subcommittee of 4 men and 7 women
8C4 x 11C7
8!/(8-4)!4! x 11!/(11-7)!7!
= 8!/4!4! x 11!/4!7!
= (40320/24*24) x (39916800/24x5040)
= (40320/576) x (39916800/120960)
=70 x 330
= 23100 ways
We can select a subcommittee of 4 men and 7 women in 23100 ways.
Which of the following set of ordered pairs when graphed does NOT represent a function?
A X (3, 2), (3, 4).(2,7), (8, 19) }
B {(-3, 17).(4.-6), (2,1),(0,4)}
C {(0.5, 0.25), (1,3), (9, 100),(14,52.5) }
D {(1,3), (2,6).(4.6), (6, 8))
Answer:
A
Step-by-step explanation:
One x can only be assigned one y value in a valid function
Find three consecutive odd integers such that the sum of the second and third is five less than three times the first.
5. Kylie is decorating cards with ribbon. She uses 25 centimeters of ribbon on each card. Kylie has 1
meter of ribbon. What is the total number of cards Kylie can decorate? *
Answer:
4
Step-by-step explanation:
the sum of five and five times a number is -50 what is the number?
Answer: -10
Step-by-step explanation:5x-10= -50
n = - 11
Step-by-step explanation:Hi there !
5 + 5n = - 50
5n = - 50 - 5
5n = - 55
n = - 55/5
n = - 11
Good luck !
Mr. Watson ran 8 miles in 48 mins. How many miles can he run in 60 mins?
I REALLY NEED HELP PLZ!!!
7.5 you just have to divide 60 by 8