Answer:
m=4
Step-by-step explanation:
distribute
5m + 2m -2 = 4m +10
7m -1 = 4m + 10
3m = 12
m = 4
Joanna has a big paper due. Yesterday, she started typing her hand-written draft. She typed 861 words of it and saved her work to
continue later. If she types at a rate of 50 words per minute, and the paper is 1,461 words long, how much more time does she have
to spend typing?
A. 17 minutes
B. 20 minutes
C.15 minutes
D. 12 minutes
Answer:
12 minutes , which agrees with answer D in the list
Step-by-step explanation:
The total length of the paper is 1461 words, she already typed 861, so she has left to type:
1461 - 861 = 600 words.
Since she types 50 words per minute, then she would need: 600/50 = 12 minutes for the rest.
What is The Base Change Property?
Step-by-step explanation:
A formula that allows you to rewrite a logarithm in terms of logs written with another base. This is especially helpful when using a calculator to evaluate a log to any base other than 10 or e. Assume that x, a, and b are all positive.
Which of the following could NOT be the measures of angle of a triangle?
Jackson’s car was making a rumbling noise for two weeks. He decided to take it to the mechanic to get it checked out. To diagnose the problem, the mechanic tells Jackson that he charges a flat fee of $60 and $35 for each hour he spends trying to identify the problem.
Write a linear equation in y = mx+b form to represent the cost of getting Jackson’s car diagnosed.
A.
y = 35x + 60
B.
y = 60x + 35
C.
y = 95x
Answer:
The correct answer is A
Step-by-step explanation:
Y=The total cost including the flat fee
m=35 (cost per hour)
x= the unidentified hours it will take him
b= the on time flat fee that is added to the total
Final equation: y=35x+60
The linear equation in y = mx + b form to represent the cost of getting Jackson’s car diagnosed is;
Option A; y = 35x + 60
The linear equation form is given as;
y = mx + b
where;
m is slope
b is y-intercept which is the value of y when x is zero
We are told that the mechanic charges a flat fee of $60. This means before any hours which we will call x, the cost (y) is $60. Thus;
b = 60
We are told that the mechanic charges $35 per hour. Thus, the slope will be 35 as it represents cost(y) per hour(x).
Thus, the linear equation will be;
y = 35x + 60
Read more at; https://brainly.com/question/21249299
Im thinking of a number from 1-10
you get one chance to guess the number and if you get it right i will mark you brainliest or whatever it is
let the games began
Answer:
7 is it truee??????????
Answer:
7
Step-by-step explanation:
♀️♀️♀️♀️♀️♀️♀️♀️♀️♀️♀️♀️♀️
Please help! i’ve been stuck on this for over 10 minutes.
7,10,13,16,18
9,18,27,36,45
64,52,40,28,16
which one of the sequences are linear? how do you know?
(YALL PLS HELP ME IM NEW TO THIS BRAINLY STUFF BUT PLS ANSWER THIS )
Answer:
Write a formula for the arithmetic sequence whose first term is 9 and whose common difference is also 9.
Step-by-step explanation:
is the part is 75 and the whole is 500 what is the percent
Answer:
If the part is 75 and the whole number is 500 the percent would be 15%
Step-by-step explanation:
A rectangular garden is 10 by 15. A uniform walkway is being added around the edge and this will increase the area by 50%. What is the width of the walkway.
Answer:
thx for the points lol
Step-by-step explanation:
yes ik its only like 3
Check all apply 3x+4=10
Answer:
Solution is x=2. sorry if this is not what you are looking for!
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
3x= 10-4
3x= 6
x = 6/3
x=2
You have 137.26 in a bank account. The bank requires you to have at least 50$ in your account or else you are charged a fee. Write and solve an inequality that represents the amount you can write for your next check for without being charged
Answer: x ≤ 87.26
Step-by-step explanation:
137.26-x=50
x=87.26
you can withdraw 87.26 or less, so the inequality is: x ≤ 87.26
The inequality represents the amount you can check for without being charged is x + 50 ≤ 137.26 and its solution is x ≤ $87.26.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
You have 137.26 dollars in your bank account. If you do not have at least $50 in your account, you will be charged a fee.
Let x be the amount of can be taken from the account without being charged.
x + 50 ≤ 137.26
Simplify the inequality, then the value of 'x' will be
x + 50 ≤ 137.26
x ≤ 137.26 - 50
x ≤ $87.26
The inequality represents the amount you can check for without being charged is x + 50 ≤ 137.26 and its solution is x ≤ $87.26.
More about the inequality link is given below.
https://brainly.com/question/19491153
#SPJ2
What is 14 1/6 minus 7 1/3?
Answer:
6.83
Step-by-step explanation:
the three is repeating
An animal pen is in the shape of a triangle. One of the interior angles of the triangle is 40°. The measures of the other interior angles are in the ratio 3 ∶ 5. What are the measures of the largest interior angle? You must show your work to receive full credit.
Answer:
The measure of the largest interior angle is [tex]87.5^{o}[/tex].
Step-by-step explanation:
Given one of the interior angles of the triangle = 40°. Let the other interior angles be represented by b and c.
Sum of angles in a triangle is [tex]180^{o}[/tex].
So that;
b + c + 40° = [tex]180^{o}[/tex]
b + c = [tex]180^{o}[/tex] - 40°
b + c = [tex]140^{o}[/tex]
But, b and c are in the ratio 3:5
Thus,
b = [tex]\frac{3}{8}[/tex] x [tex]140^{o}[/tex]
= [tex]52.5^{o}[/tex]
b = [tex]52.5^{o}[/tex]
c = [tex]\frac{5}{8}[/tex] x [tex]140^{o}[/tex]
= [tex]87.5^{o}[/tex]
c = [tex]87.5^{o}[/tex]
Check:
[tex]52.5^{o}[/tex] + [tex]87.5^{o}[/tex] = [tex]140^{o}[/tex]
The measure of the largest interior angle is [tex]87.5^{o}[/tex].
What is the y-intercept (b) of the line? (Use frame 5 in Jamboard to answer this question)
Answer:
$2 this is because you're adding to the already $5
pls help! need answer ASAP!!
Answer:
c because if you subtract
The temperature dropped at a rate of -4.8 degrees per hour. If the temperature was 31 degrees at 10 am, what was the temperature at 3:00 pm? *
When the x-values are the same, then the slope is
Answer:
the x value when u add them or subtract them
Step-by-step explanation:
Answer: it is undefined
Step-by-step explanation: there is no way you will find an answer because of the axis
Part A
Nancy has to mark the point with the coordinates (-2, 4) on the coordinate plane. Which point in the graph is at (-2, 4)? In which quadrant is the
point located?
I know that is G. But I’m not sure what quadrant is located
Answer:
A, in quadrant II, or 2
Step-by-step explanation:
Answer:
In the graph, point A is at (-2, 4). Point A is in quadrant II of the coordinate plane.
Step-by-step explanation:
I got this off Edmentum so it's 100% percent right lol
Due In 15 Minutes, Find the product of 13 and -31
Answer: -403
Step-by-step explanation: 13 • -31 is -403
Answer:
-403
Step-by-step explanation:
13 * -31 = -403
In a simple random sample of 70 automobiles registered in a certain state, 25 of them were found to have emission levels that exceed a state standard. Find a 95% lower confidence bound for the proportion of automobiles whose emissions exceed the standard. Round the answer to three decimal places.
Answer:
The 95% lower confidence bound is a = 0.2451
Step-by-step explanation:
From the question we are told that
The sample size is n = 70
The number that have emission level that exceed a state standard is k = 25
Generally the sample proportion is mathematically represented as
[tex]\^ p = \frac{k}{n}[/tex]
=> [tex]\^ p = \frac{25}{70}[/tex]
=> [tex]\^ p = 0.3571[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } [/tex]
=> [tex]E = 1.96 * \sqrt{\frac{0.3571 (1- 0.3571)}{70} } [/tex]
=> [tex]E = 0.112[/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\^ p -E < p < \^ p +E[/tex]
=> [tex]0.3571 -0.112 < p < 0.3571 + 0.112[/tex]
=> [tex]0.2451 < p < 0.4691[/tex]
The 95% lower confidence bound is a = 0.2451
Using the z-distribution, it is found that the 95% lower confidence bound for the proportion of automobiles whose emissions exceed the standard is 0.2629.
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]\alpha[/tex], we have the lower bound of a confidence interval of proportions is given by:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]\alpha[/tex].25 out of 70 automobiles had emissions which exceed the standard, hence:
[tex]n = 70, \pi = \frac{25}{70} = 0.3571[/tex]
95% confidence level
z with a p-value of 0.95, hence, z = 1.645.
Then:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3571 - 1.645\sqrt{\frac{0.3571(0.6429)}{70}} = 0.2629[/tex]
The 95% lower confidence bound for the proportion of automobiles whose emissions exceed the standard is 0.2629.
A similar problem is given at https://brainly.com/question/16807970
Which graphs represent a directly proportional relationship between x and y ? Select EACH correct answer.please answer quickly! thank you so much :)
A B D F irdk if this is correct never done this before
simply explain how to calculate log and exp functions
9514 1404 393
Answer:
use the appropriate calculator functions
Step-by-step explanation:
Log and Exp functions are transcendental functions. Each is defined by an infinite series. All modern scientific and graphing calculators have built-in algorithms for calculating these functions. The easiest way to calculate these function is to ...
make use of an electronic calculator
Detailed instructions for use will depend on the calculator.
_____
Alternatively, one can make use of tables. A typical table of log functions will be arranged to facilitate interpolation between table values when necessary. Again, the detailed instructions for using a particular table will depend on the table. The second attachment shows an example of a 4-decimal place log table.
WILL MARK BRAINLEAST 100% 20 POINTS
Plz answer Honestly or I'll report your answer but only if it's wrong
-3 + { 1 – 3[20 + 2(-6 – 7)]}
SIMPLIFY ANSWER:
Answer:
16
Step-by-step explanation:
everything simplified is 16
Answer:
16
Step-by-step explanation:
To simplify, we have to start from the innermost parentheses and expand from there!
-3+{1-3[20+2(-6-7)]} -6-7=-13
-3+{1-3[20+2(-13)]} 2*-13=-26
-3+{1-3[20-26]} 20-26=-6
-3+{1-3[-6]} -3*-6=18
-3+{1+18} 1+18=19
-3+19 -3+19=16
16
I really hope this helps!! Have a wonderful day C:
The point [tex](\frac{3}{7} ,\frac{2\sqrt{10} }{7} )[/tex] it's a unitary circle point ?
Find the probability that a fisherman selected at random fishing from shore catches one or more fish in a 6-hour period.
Complete Question
The percentages of fishermen who caught x fish in a 6-hour period while fishing from shore is
X 0 1 2 3 4 or more
probability 43% (0.43) 36%(0.36) 14%(0.14) 6%(0.06) 1%(0.01)
Find the probability that a fisherman selected at random fishing from shore catches one or more fish in a 6-hour period
Answer:
The probability is [tex]P(X \ge 1 ) = 0.57[/tex]
Step-by-step explanation:
Generally the probability that a fisherman selected at random fishing from shore catches one or more fish in a 6-hour period is mathematically represented as
[tex]P(X \ge 1 ) = P(1 ) + P(2) + P(3) + P(4\ or \ more)[/tex]
=> [tex]P(X \ge 1 ) =0.33 +0.14 + 0.06 + 0.01[/tex]
=> [tex]P(X \ge 1 ) = 0.57[/tex]
What lump sum amount payable 2 years from today will pay off a loan of 50000 borrowed over 2 years if interest is payable annually at 8% per annum
Find the slope of the line segment joining the points (2, -1)
and (3,3)
Answer:
4
Step-by-step explanation:
(2, -1) (3,3)
[tex]\frac{y2 - y1}{x2 - x1}[/tex]
[tex]\frac{3 + 1}{3 - 2}[/tex]
[tex]\frac{4}{1} = 4[/tex]
m = 4
Sally has 15 books. Jim has 40% more books than
Sally. How many books does Jim Have?
Answer:
21
Step-by-step explanation:
40 percent of 15=6 15+6=21
ejercisio 1 ● Escribe la siguiente expresión como potencia: 3 x 3 x 7 x 7 x 7 x 5.
ejercisio 2 ● Es muy importante lavarse las manos con frecuencia porque las bacterias se multiplican con rapidez. Un tipo de bacteria duplica su número cada dos horas. Si originalmente había una bacteria, ¿cuántas bacterias habrá en dos días, tres días y cinco días?
Answer:
1) 3² x 7³ x 5¹
2)
2 dias - 16777216 bacterias
3 dias - 6.87 × 10¹⁰ bacterias
5 dias - 1.15 × 10¹⁸ bacterias
Step-by-step explanation:
Ejercicio 1. Escribe la siguiente expresión como potencia: 3 x 3 x 7 x 7 x 7 x 5.
3 x 3 puede ser escrito como la potencia 3².
7 x 7 x 7 puede ser escrito como la potencia 7³.
5 puede ser escrito como la potencia 5¹.
Luego, 3 x 3 x 7 x 7 x 7 x 5 = 3² x 7³ x 5¹.
Ejercicio 2. Un tipo de bacteria duplica su número cada dos horas. Podemos calcular el número de bacterias (N) luego de "x horas" usando la siguiente expresión de potencias.
[tex]N = A.2^{x/2}[/tex]
Donde "A" es el número inicial de bacterias.
2 dias es igual a 2 dia × 24 h/dia = 48 h. El número de bacterias luego de 2 dias será:
[tex]N = 1.2^{48/2}=16777216[/tex]
3 dias es igual a 3 dia × 24 h/dia = 72 h. El número de bacterias luego de 3 dias será:
[tex]N = 1.2^{72/2}= 6.87 \times 10^{10}[/tex]
5 dias es igual a 5 dia × 24 h/dia = 120 h. El número de bacterias luego de 5 dias será:
[tex]N = 1.2^{120/2}= 1.15 \times 10^{18}[/tex]
THREE Sweet potatoes cost 1.35 what is the unit price?
Answer:
0.45
Step-by-step explanation:
3÷3=1
1.35÷3=0.45
