Answer:
2x−y=5
Step-by-step explanation:
y=3x/5-6 in standard form
Answer:
The standard form is 3x-5y-30=0
I'm so confused what is the answer plz?
Answer:
option b .
yes, by SAS.
.............
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Answer: they would both have $240 in 3 months
Step-by-step explanation:
180 + 20 + 20 + 20 = 240
120 +40 + 40 + 40 =240
-
180+20=200+20=220+20=240
120+40=160+40=200+40=240
and there u go :)
A group of students with normally distributed salaries earn an average of 6800 with a standard deviation of $2500. Find the cutoff for the salary that corresponds to the lower 25% of all salaries
Answer: $5115
Step-by-step explanation:
The following information can be gotten from the question:
Mean = 6800
Standard deviation = 2500
We will then find the Z score of the 25th percentile which will be -0.674.
Therefore, the cutoff for the salary that corresponds to the lower 25% of all salaries will be:
= 6800 - 0.674 × 2500
= 6800 - 1685
= 5115
The cutoff is $5115
Use I = PRT to solve.
(time is in years)
1 = $270,000
P = $150,000
R = 12%
Find T.
Answer:
Time T = 15 year
Step-by-step explanation:
Given:
Interest I = $270,000
Principal P = $150,000
Rate R = 12% = 0.12
Find:
Time T
Computation:
I = PRT
270,000 = (150,000)(0.12)(T)
270,000 = (18,000)(T)
Time T = 15 year
If I have 8 cans of soup and I gave 1/2 to sue and 1/4 to mark how many do I have left
Answer: 2 cans of soup left.
Step-by-step explanation:
1/2 of 8 = 4.
1/4 of 8 = 2.
4 + 2 = 6, so you are giving 6 cans of soup away. 8 - 6 = 2. In conclusion, you have 2 cans of soup left.
Someone plz help answering this (mastery test)15points if u don’t know don’t answer real talk
Answer:
6 ? (i think)
Step-by-step explanation:
A stack of 500 pieces of paper is 1.9 inches tall. How thick is each piece of paper?
Answer:
0.00375 inches thick
y is directly proportional to x.
(y = 44
when
x = 4.)
Find a mathematical model that represents the statement. (Determine the constant of proportionality.)
Answer:
11
Step-by-step explanation:
Trust me
Answer:
Step-by-step explanation:
directly proportional means it is in the form
y=kx, given y=44 and x=4
44=4k
k=11
22 is 1196 of what number?
Enter your answer in the box.
Answer:
It is 1174.
Step-by-step explanation:
The lifetimes of a certain brand of light bulbs are known to be normally dsitributed with a mean of 1700 hours and standard deviation of 400 hours. A random sample of 64 of these light bulbs is taken. The probability is 0.20 that the sample mean lifetime is more than how many hours?
A. 1652.
B. 1725.
C. 1752.
D. 1670.
Answer:
1742 hours
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal probability distribution
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Single light:
Mean of 1700 hours and standard deviation of 400 hours, which means that [tex]\mu = 1700, \sigma = 400[/tex]
Sample of 64:
This means that [tex]n = 64, s = \frac{400}{\sqrt{64}} = 50[/tex]
The probability is 0.20 that the sample mean lifetime is more than how many hours?
This is the 100 - 20 = 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.84
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]0.84 = \frac{X - 1700}{50}[/tex]
[tex]X - 1700 = 50*0.84[/tex]
[tex]X = 1700 + 50*0.84[/tex]
[tex]X = 1742[/tex]
I need help please I will give brainlest to first person that answers (please hurry)
Answer:
Less than 4 is 1,2,3
So 3/12=1/4
Determine the rate of change from the graph.
On a coordinate plane, a line with positive slope goes through points (0.5, 0) and (1, 4).
The rate of change shown in the graph is ...
PLZ HELP. NEED EXPLANATION PLZ!
What is the solution to this inequality? 7x +18 > -3
x<-3
x<3
x>-3
x>3
Step-by-step explanation:
7x + 18 > -37x > -3 -187x > -21x > -21÷7x > -3MARK ME AS BRAINLISTPLZ FOLLOW MEUse the figure to answer the following question.
1.3 m
0.5 m
2.4 m
What is the area, in square meters, of the figure?
O A. 0.78 square meters
OB. 0.6 square meters
C. 1.56 square meters
O D. 1.2 square meters
Answer:
The answer to the equation was c so yes you are right:)
Andrew had 30 dollars to spend on 3 gifts. He spent 8
1
4
dollars on gift A and 5
4
5
dollars on gift B. How much money did he have left for gift C?
Andrew has 17 dollars left for gift c
1+4=5
1+5=6
1+6=7
8+7=?
Answer:
8+7=15
Step-by-step explanation:
Just add 8+7 which will equal 15
Answer:
The answer is 15
Step-by-step explanation:
Hoped this helped!
PLEASE PLEASE HELP
What is the slope of the line that passes through the points (-1, 2) and (-4, 3)?
을
-3
[tex] \begin{cases} (-1, 2) \\ (-4, 3) \end{cases}[/tex]
Calculate and find the slope by using rise over run formula with two given points.[tex]m = \frac{dy}{dx} = \frac{y_2-y_1}{x_2-x_1}[/tex]
Substitute the coordinate points in.
[tex]m = \frac{3 - 2}{ - 4 - ( - 1)} \\ m = \frac{1}{ - 4 + 1} \longrightarrow \frac{1}{ - 3} \\ m = - \frac{1}{3} [/tex]
Hence, the value of m is - 1/3.
Slope-intercept[tex]y = mx + b \\ \sf{where \: \: m \: \: = \: \: slope}[/tex]
Answer[tex] \large\boxed{m = - \frac{1}{3} }[/tex]
Out of 20 cookies, 4/ 5 are chocolate chip. How many cookies are chocolate chip?
Answer:
16 cookies. Try your best.
Answer: 16
Step-by-step explanation:
We can solve this by using the equation: 4/5 x 20 = y
(y is the answer)
Now we can solve it. You can just solve 4/5 x 20, or if you like using decimals you can change it to 0.8 x 20, becaues 4/5 is equivalent to 0.8.
0.8 x 20 = 16.
Therefore, out of the 20 cookies, 16 are chocolate chip.
write 2/5 X 3/7 in simplest form brainliest if correct
Answer:
6/35
Step-by-step explanation:
2/5x3/7
Multiply Numerators and Denominators
= 6/35
You can't further simplify so the answer is 6/35.
Answer:
6/35
Step-by-step explanation:
hope this helps, would consider downloading photomath
Dan is fertilizing his garden. The garden is in the shape of a rectangle. it's length is 16 feet and it's width is 13 feet. suppose each bag of fertilizer covers 26 square feet. How many bags will he need to cover the garden?
Answer:
Step-by-step explanation:
16ft(13ft)(b/26ft^2)=8b
So he’ll need 8 bags
Find the range of the data in the box plot below."
rebounds
Juan's number of rebounds each game
+
HHH
0
3
+
12
6
9
15
Answer:
9
Step-by-step explanation:
Khan Academy
The total number of points scored during 10 regional games is shown below.
52, 51, 65, 38, 56, 48, 50, 31, 46, 31
Select the correct five-number summary for this data set. (4 points)
Answer:
Min 31
Q1 38
Median 49
Q3 52
Max 65
Step-by-step explanation:
Max number
Min number
Answer:
Min: 31
Q1: 38
Median: 49
Q3: 52
Max: 65
Step-by-step explanation:
Min Number: 31
Max Number: 65
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter. To the nearest inch, how many inches are in 12 meters?
Answer:
12 meters = 472.441 inches
~Hope this helps~
how do you solve 0.7n-1.5+7.3n=14.5
Answer:
n = 2
Step-by-step explanation:
Answer:
n = 2
Step-by-step explanation:
0.7n-1.5+7.3n=14.5
Add like terms
(0.7n + 7.3n) + (-1.5) = 14.5
8n -1 .5 = 14.5
Add 1.5 to both sides.
8n =1 6
Divide both sides by 8.
n = 2
Angle y is 36 degree.what is angle x
Answer:
do u have a picture or smth? there is not enough info
A store pays $15 for a baseball cap. The percent
markup is 60%. What is the selling price?
Answer:
$25
Step-by-step explanation:
Simply by using long division, this can be solved. Change 60% into its decimal form (0.6,) and divide 15 by 0.6.
Gavin drew a circle with a circumference of 10π centimeters. Which best represents the area of Gavin's circle in square centimeters?
Answer:
78.5cm^2
Step-by-step explanation:
Circumference equation = 2πr with radius r
10π = 2πr so r = 10π/2π = 5
Area of circle = πr^2
π * 5^2 = π * 25 = 25π = 78.53981... = 78.5 cm^2
perimeter ILL MARK BRAINLY
Answer:
The perimeter is 24 in2
Step-by-step explanation:
You have to add up all of the sides together
Answer:
the answer 24
Step-by-step explanation:
P= 10+6+8=24 in
because perimeter is just adding
The Empire State Building in New York City
443.2 meters tall. This is 119.2 meters taller
than the Eiffel Tower in Paris. Which equation
can be used to find the height h in meters of
the Eiffel Tower?
Hurry please, thanks!