Answer: 626
Step-by-step explanation:
5x5x5x5 = 625
Which expression represents 6 less than a number, n?
Answer:
n-6
Step-by-step explanation:
less than is subtraction
6 is taken away from n
n-6
A spinner rotates 405 times in 5 minutes. How many spins per minute?
Answer:
81
Step-by-step explanation:
divide 405 by 5 to get the number of rotations per minute.
Answer:
81 spins per minute
Step-by-step explanation:
Divide 405 by 5 to get 81 <(your unit rate)
Write an equation of the line passing through point P(3,8) that is parallel to the line y
= 1/5 (x+4)
Answer:
y=1/5(x+37)
Step-by-step explanation:
y=1/5x+4/5
Plug in the (3,8)
8=1/5(3)+b
8=3/5+b
7 2/5=b
y=1/5(x+37)
The equation of the line is y = 1/5(x + 37)
Since our new line is parallel to the line y = 1/5(x + 4), and 1/5 is the gradient of the line y = 1/5(x + 4), the gradient of the new line is 1/5.
Using the equation of a line in slope-point form, [tex]\frac{y - y_{1} }{x - x_{1} } = m[/tex] where (x₁, y₁) = (3, 8) and m = 1/5
Substituting the values of the variables into the equation, we have
[tex]\frac{y - y_{1} }{x - x_{1} } = m[/tex]
[tex]\frac{y - 8 }{x - 3 } = \frac{1}{5}[/tex]
Cross-multiplying. we have
5(y - 8) = x - 3
Expanding the bracket, we have
5y - 40 = x - 3
5y = x - 3 + 40
5y = x + 37
y = 1/5(x + 37)
So, the equation of the line is y = 1/5(x + 37)
Learn more about equation of a line here:
https://brainly.com/question/15587122
SAT verbal scores are normally distributed with a mean of 430 and a standard deviation of 120 (based on the data from the College Board ATP). If a sample of 15 students is selected randomly, find the probability that the sample mean is above 500. Does the central limit theorem apply for this problem?
Answer:
The value is [tex]P(X > 500 ) = 0.011942[/tex]
Step-by-step explanation:
From the question we are told that
The mean is [tex]\mu = 430[/tex]
The standard deviation is [tex]\sigma = 120[/tex]
The sample size is n = 15
Generally the probability that the sample mean is above 500
Gnerally the standard error of mean is mathematically represented as
[tex]s = \frac{\sigma }{ \sqrt{n} }[/tex]
=> [tex]s = \frac{ 120 }{ \sqrt{15} }[/tex]
=> [tex]s = 30.984[/tex]
Generally the probability that the sample mean is above 500
[tex]P(X > 500 ) = P( \frac{X - \mu }{\sigma_x} > \frac{500 - 430 }{ 30.984 } )[/tex]
[tex]\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )[/tex]
[tex]P(X > 500 ) = P( Z > 2.259 )[/tex]
=> [tex]P(X > 500 ) = P( Z > 2.259 )[/tex]
From the z table the area under the normal curve to the right corresponding to 2.259 is
[tex]P( Z > 2.259 ) = 0.011942[/tex]
=> [tex]P(X > 500 ) = 0.011942[/tex]
urgent please help!! no trolls
Answer:
2.4
Step-by-step explanation:
Answer:
66?
Step-by-step explanation:
112-46= 66
Sorry if it's wrong! ヾ(•ω•`)o
Have a nice day!( ﾟдﾟ)つ Bye
please help me asap please
Answer:
1. choice number 3
2. choice number 1
3. choice number i dont know
Step-by-step explanation:
Select all ratios equivalent to 4:2.
Answer:
Step-by-step explanation:
4 : 2
8 : 4
12 : 6
16:8
The ratio in the form of n: 1 will be 2: 1.
What are ratio and proportion?A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.
Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.
The ratio is given below.
⇒ 4: 2
Simplify the ratio in the form of n: 1, then we have
⇒ 4: 2
⇒ 2: 1
The ratio in the form of n: 1 will be 2: 1.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
#SPJ2
A runner runs 15 miles in 3 hours. Find the constant of proportionality (k), that relates the miles, y, to the time, x. Also, write the equation (y = kx) for this relationship.
Answer:
y=10x; y is the miles driven, x is the hours driven
Step-by-step explanation:
The independent variable is x, and the dependent variable is y.
For every 2 cars you wash, your friend washes 3 cars. You wash a total of 8 cars. How many does your friend wash? PLS GIVE EXPLANATION
Working alone, it takes Trevon eight hours
to pick forty bushels of apples. Brenda
can pick the same amount in 10.8 hours.
Find how long it would take them if they
worked together.
Answer
18.8 if they are picking 80 bushes and 9.4 if their
picking the forty bushes together
Step-by-step explanation:
What is the value of n in this equation?
7^6·7^3=7^n
Answer: n = 9
Step-by-step explanation:
first, we calculate the first equation.
7^9 = 7^n
then, we set the exponents as equal.
9 = n
then, we simply swap the sides.
n = 9
Pls help I will mark branliess
Answer:
D
Step-by-step explanation:
increases by 5 pages per day + 25 initial pages read = 350
1.Refer to the system of linear equations shown below. Which of the following statements gives the best choice for multiplying to solve this system using the elimination method?
3x−6y=4
6x+11y=−2
(1 point)
Multiply the second equation by 12, so the x-variables are eliminated.
Multiply the first equation by 2, so the x-variables are eliminated.
Multiply the first equation by −11 and the second equation by 6, so the y-variables are eliminated.
Multiply the first equation by −2, so the x-variables are eliminated.
2.Given the following system, what should the second equation be multiplied by so that x is eliminated?
4x−y=9
x+3y=12
(1 point)
13
−4
−13
4
3.Solve the following system by the elimination method.
4x−2y=16
3x+6y=−18
(1 point)
(1, −5)
(3, −2)
(2, −4)
(0, −3)
4.Solve the system by the elimination method.
3x−5y=4
−9x+3y=−24
(1 point)
(8, 4)
(1, −1)
(3, 1)
(2, −2)
5.Manny says he should multiply the first equation in the system of equations below by 3 and the second equation by 2, then add to eliminate x. Is there a more efficient way to solve this system? Explain your answer.
−2x+y=15
3x+4y=−12
(1 point)
No, there isn't a more efficient way to solve this system.
Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.
Answer:
456
Step-by-step explanation:
Step-by-step explanation:
(1 point)
No, there isn't a more efficient way to solve this system.
Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.
Is the equation 2x + 5 = 1 true, false, or open? Explain.
Answer:
open
Step-by-step explanation:
beacause
2x+5=1
2x=1-5
2x=-4
x=-4/2
x-2 so its open
An open statement is a statement that has an unknown variable
[tex]2x + 5 = 1[/tex] is an open statement
The equation is given as:
[tex]2x + 5 = 1[/tex]
From the equation, we have the following observations.
2, 5 and 1 are constants
x is a variable
Because the equation has a variable (i.e. x), then it is an open statement
Hence, [tex]2x + 5 = 1[/tex] is an open statement
Read more about open statements at:
https://brainly.com/question/11151728
Elena has $80 in a savings account. The interest rate is 5% per year and 1 point
is not compounded. How much Interest will she have in 2 years?
PLEASE HELP!!! ITS ALMOST DUE!!! ILL MARK BRAINLIEST!!
Answer: 12.8
Step-by-step explanation:
Answer:
Step-by-step explanation:
C
please help me!!!!!!
Answer:
y = 28, 16 , 4 , -8 , -20
Hope this helps.
Paul and Kristen have planned a long hike. They will both travel the same route and will not stop. Paul starts two hours before Kristen. He walks three miles per hour and does not slow down or speed up. If Kristen walks four miles per hour, and does not slow down or walk faster, how many miles must she walk to catch up with Paul?
Answer:
Kristen should walk 12 miles to catch up with Paul
Step-by-step explanation:
Paul = 2hrs earlier
= walks at 3 miles per hour
= 3miles x 2 hrs = 6 miles
covers 6 miles at the time Kristen starts
Kristen = 4 miles per hour
Paul has a lead of 6 miles.
if Kristen walks another hour of 4 miles she would have covered 8 miles and Paul would have covered 9 miles and if Kristen were to cover one more hour,
Kristen would be at 12 and so would Paul.
Kristen should walk 12 miles to catch up with Paul
A number is chosen at random from 1 to 50. Find the probability of selecting factors of 36.
Answer:
1/50 2%
Step-by-step explanation:
1 divided by 50
The cost of a raffle ticket is $2. There is also a one-time $5 fee to be part of the raffle. Which of the following expressions could be used to represent the total cost of being in the raffle and buying m tickets?
2 m + 5
10 m
5 m + 2
7 + m
Answer:
2m+5
Step-by-step explanation:
the x value is 2 and the y intercept is 5
22 Simplify the expression below. 9 (-2-8) + (-16)
x divided by 39 = 1204 R38
Answer:
x=46994
Step-by-step explanation:
Just do 1204 38/39 * 39 to get x=46994
Solve 11 < 3x+8 < 20.
Answer:
1<x<4
Step-by-step explanation:
this helps me out a lot in my math class
Answer:
x=4 and thats your answer thanks for helping you but if using the z-score it's 0
Step-by-step explanation:
1<x<4
+ + = . . Please im on a time limit
Answer:
what do you mean lol im slow haha
Answer:
In order to solve we need to know what the equation is.
Step-by-step explanation:
10 - 3 (z - 2) = 5z + 7
Answer:
= 9/8
That's the answer
2.
Petra deposited $3,000 into a savings account. If Petra's interest rate was 5%, how much interest
would she earn after 3 years? (7.13E)
A $150
B $450
C $1000
D $4500
Answer:
$450 please give brainliest
Step-by-step explanation:
3,000 + her interest rate would make the money 150 per year so after 3 years it would be 450.
Please help as soon as you can! Which of the following inequalities matches the graph?
(A) x> 4
(B) x< 4
(C) y > 4
(D) y < 4
Answer:
i believe the answer is B
What is the above strategy of investing called?
Answer: Hope this helps, these are some tips for investing and the different types of them definitions.
Step-by-step explanation:
Take Some Notes
Strategy 1: Value Investing
Strategy 2: Growth Investing
Strategy 3: Momentum Investing
Strategy 4: Dollar-Cost Averaging
What is the value of the expression
4.8-(2.5-6.3)
Find the 57th term of the following arithmetic sequence.
5, 14, 23, 32,
Answer:
509
Step-by-step explanation:
formula
L = a + (n - 1)*d
Givens
n = 57
a = 5
d = 9
Solution
t = 5 + (57 - 1)*9
t = 5 + 56*9
t = 5 + 504
t = 509
t = 556