Answer:
Jim's sister age now is ( 2x - 2) years.
Step-by-step explanation:
Given
Jim will be x years old in two years
At that time, his sister will be twice as old as he will be
Thus, the age of sister in two years = 2*Jim's age in 2 years
the age of sister in two years = 2*x years = 2x years
Jim's sister age now will be 2 years lesser than the age found above which is her age after two year
Jim's sister age now = age of sister in two years - 2 years
Jim's sister age now = 2x years - 2 years
Jim's sister age now = ( 2x - 2) years
1. The sum of 2 consecutive integers is 91. What are the integers? Separate your integers by a
comma -
Helppp pls
Given that,
the two numbers are consecutive
The two numbers are
x and x + 1
Sum of the numbers = 81
x + (x + 1) = 91
x + x + 1 = 91
2x = 91 - 1
2x = 90
x = 90/2
x = 45
Therefore, the two numbers are x = 45 and x + 1 = 46
Can someone help me with this math question please
Answer:
0.1
Step-by-step explanation:
4 x 10^-3 = 0.004
4 x 10^-4 = 0.0004
0.0004 ÷ 0.004 = 0.1
Bryron earned $85.45 selling 25 customized notebook sat a book fair. What was the cost of each customized book sold?
Answer: $3.418 from each book
Please mark me as Brainliest
Hope this helped :)
!!!NEED HELP ASAP, 40 POINTS!!!
If f(x)= x/2 and g(x) = 2x^2, find (f+g)(x)
A. 2x^3 + 3/2x+1
B. 2x^2 + 3/2x-5
C. x^2-6
D. 2x^2 + x/2+1
Answer:
B
Step-by-step explanation:
We have the two functions:
[tex]f(x)=\frac{x}{2}-2\text{ and } g(x)=2x^2+x-3[/tex]
And we want to find:
[tex](f+g)(x)[/tex]
This is the same thing as:
[tex]=f(x)+g(x)[/tex]
Let's substitute them for their respective equations. This yields:
[tex]=(\frac{x}{2}-2})+(2x^2+x-3)[/tex]
Combine like terms:
[tex]=(2x^2)+(\frac{x}{2}+x)+(-2-3)[/tex]
Add:
[tex]=2x^2+\frac{3}{2}x-5[/tex]
So, our answer is B.
And we're done!
PLEASE HELP !!!!!!!!!!!!!!!!!!
Sue’s cafeteria has those cute little cartons of milk that are typical of school lunch. The milk supplier charges $0.45 per carton of milk, in addition to a delivery charge of $75. What is the maximum number of milk cartons that Sue can buy if she has budgeted $600 for milk?
Write and solve an inequality that models this situation.
Describe in words the quantities that would work in this situation.
Answer:
1,166
Step-by-step explanation:
600-75= 525
525 divided by 0.45 is 1166.66667 repeating so it would be 1166 since you cant have a fraction of a carton of milk bought.
Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puzzle alone?
Answer:
3 hours and 20 minutes
(sorry i didnt show my work)
ASAP PLEASE I NEED HELP explain to me also because i dont understand Thank you!
both questions 7 &8
Answer:
For 7 I think A- ( I hope its right-) and 8 is D. - . <:)))))
Step-by-step explanation:
3x + 12 > 3(x + 4)
What is a solution for this inequality
Answer:
There are no solutions.
Step-by-step explanation:
3x+12>3(x+4)
Step 1: Simplify both sides of the inequality.
3x+12>3x+12
Step 2: Subtract 3x from both sides.
3x+12−3x>3x+12−3x
12>12
Step 3: Subtract 12 from both sides.
12−12>12−12
0>0
-4x +1 = -11 – 2x What is it?
Answer:
x=6
Step-by-step explanation:
Answer:
-6
Step-by-step explanation:
4x + 1 = -4
-11 - 2x = -2
-4 - 2 = -6
Miss martins is organising a play
The total cost of putting on a play is £960
The school pays £300 of this costs the school then sells 500 tickets.
Each ticket costs £4.
She has enough money to pay the rest of the costs and give the rest to charity
How much is given to charity
How much is given to charity?
Answer:
1340
Step-by-step explanation:
Answer:
2500 - 960 = 1340 to charity
Step-by-step explanation:
b. Find the rule for this sequence.
_ _ _ 13, 25, 37
Answer:
You add 12 to the number before to subtract 12 to the number after.
Step-by-step explanation:
13+12=25
37-12=25
Can I have brainliest!
Thank you for the person that answers this :)
Answer:
g(x) = - 3^x
Step-by-step explanation:
G is a reflection across the x axis of the function of f(x)
g(x) = −f(x)
g(x) = - 3^x
Wilson paints 40% of a bookcase in 20 minutes. How much more time will it take him to finish his bookcase
Employment statistics in the US are often based on two nationwide monthly surveys: the Current Population Survey (CPS) and the Current Employment Statistics (CES) survey. The CPS samples approximately US households and collects the employment status, job type, and demographic information of each resident in the household. The CES survey samples non-farm businesses and government agencies and collects the number of payroll jobs, pay rates, and related information for each firm.
a. What is the population in the CPS survey?b. What is the population in the CES survey?
Complete Question
The complete question is shown on the first uploaded image
Answer:
The population in the CPS survey is
Total number of US households
The population in the CES survey is
Total number of nonfarm businesses and government agencies
Step-by-step explanation:
From the question we are told that
The number of US households sampled by CPS is 60 , 000
The number of nonfarm businesses and government agencies sampled by CES is 140,000
Generally population is defined as the universal set where the samples are drawn from
Hence the population of CPS survey is the total number of US households
And the population in the CES survey is the total number of nonfarm businesses and government agencies
2) Which expressions are equivalent to 1/3 - (-1/4). Select all that apply.
What is the range of this function? 3 0 5 7 4 11 6 A. {-3,4,5,7} B. {-3,0,4,6} C. {-3,0,3,4,5,6,7,11} D. {3,5,7, 11}
Answer:
this was incorrect. the answer is -3, 0, 4, 6
Step-by-step explanation:
The required range of the function is given as {-3, 0, 4, 6}. Option B is correct.
What is the range?The range is the set of values that come out to an outcome for certain mathematical operations.
What is a domain?The domain is defined as the values of the independent variable for which there is a certain value of the dependent variable exists in the range of the function.
Here,
The range of this function can be justified with help of the figure,
As the left set represents the domain and the right set represents the range,
So the range is given as {-3, 0, 4, 6}
Thus, the required range of the function is given as {-3, 0, 4, 6}. Option B is correct.
Learn more about the range here:
https://brainly.com/question/12239390
#SPJ2
Bob has a recipe for salad dressing the recipe says to mix 1/4 cup lemon juice. 1/8 cup mustard and 1/4 cup vinegar how much lemon juice does he need to make 4 cups of salad dressing show your work
Answer:
Step-by-step explanation:
1/4*x + 1/8*x + 1/4 * x = 4 cups
5/8 * x = 4 cups Multiply both sides by 8/5
5/8 * 8/5 x = 4 8/5
x = 32/5
x = 6.4
That means that each ingredient must be multiplied by 6.4
1/4 * 6.4 = 1.6 cups lemon juice
1/8 * 6.4 = .8 cups mustard
1/4 * 6.4 = 1.6 cups vinegar
Total = 4 cups.
A change in pressure on the eardrum occurs when a pure musical tone is played. For some
tones, the pressure on the eardrum follows the sine curve
2/14
where is the pressure in pounds per square foot at time t second, and is the frequency of
the sound wave in cycles per second When p() is positive, there is an increase in pressure
and the eardrum is pushed inward: when p() is negative there is a decrease in pressure and
the eardrum is pushed outward.
(a) Graph the pressure on the eardrum for Middle C, which has a frequency of / 261.63
H. (ie, cycles per second), for between 0 and 0.005, i.e., [0, 0.005).
(1) Determine the period, denoted by 7 of p(6). What is the relationship between the period
and the frequency of the tone?
Answer:
a) see attached
b) period = 1/f ≈ 3.822 ms
Step-by-step explanation:
Apparently the pressure formula is ...
[tex]p(t)=0.004\sin{\left(2\pi ft+\dfrac{\pi}{7}\right)}[/tex]
__
a) A graph of this for f=261.63 is shown in the attachment.
__
b) The period is the time T required to change the sine function argument by 2π:
2πfT = 2π
T = 1/f . . . . . . divide by 2πf
The period is the reciprocal of the frequency.
The period of the tone is 1/(261.63 Hz) ≈ 3.822·10^-3 s
Which situation is the best example of a pure competition market?
A. Two gas stations operate on the same busy intersection.
B. Several computer companies sell laptops with unique features.
C. Two companies own every high-speed Internet provider in a country.
D. One company controls every steel mill in a country.
Answer: a
Step-by-step explanation: apex learning
The statement "Two gas stations operate on the same busy intersection." is correct option (A) would be correct.
What are the null hypothesis and alternative hypothesis?The null and alternative hypotheses are two generalizations about a population that are strictly contradictory. The null hypothesis can be denoted by H₀ and the alternative hypothesis can be denoted by H₁.
We have:
Which situation is the best example of a pure competition market?
The statements are:
A. Two gas stations operate at the same busy intersection.B. Several computer companies sell laptops with unique features.C. Two companies own every high-speed Internet provider in a country.D. One company controls every steel mill in a country.As we know, from the hypothesis definition the explanation made by the limited data.
The situation two gas stations operate on the same busy intersection.
Thus, the statement "Two gas stations operate on the same busy intersection." is correct option (A) would be correct.
Learn more about the null hypothesis and alternative hypothesis here:
brainly.com/question/27335001
#SPJ2
Given the function f(x)=4x-7, what value of x results in f(x)=13
Answer:
There is your answer and work
Solve the absolute value equation: |5x - 10| = |5x +25|
Answer: x=-3/2
Solve Absolute Value.
|5x−10|=|5x+25|
We know either5x−10=5x+25or5x−10=−(5x+25)
5x−10=5x+25(Possibility 1)
5x−10−5x=5x+25−5x(Subtract 5x from both sides)
−10=25
−10+10=25+10(Add 10 to both sides)
0=35
5x−10=−(5x+25)(Possibility 2)
5x−10=−5x−25(Simplify both sides of the equation)
5x−10+5x=−5x−25+5x(Add 5x to both sides)
10x−10=−25
10x−10+10=−25+10(Add 10 to both sides)
10x=−15
10x
10
=
−15
10
(Divide both sides by 10)
x=
−3
2
Check answers. (Plug them in to make sure they work.)
x=
−3
2
(Works in original equation)
Answer:
x=
−3
2
Clear Absolute Value Equation
Step-by-step explanation:
Arrange w, x, y and z in increasing order of values if
w = (-3) × (-9),
x = 3 + (-9),
y = (-3) × 9
z = (-3) + 9.
Answer:
x
Step-by-step explanation:
when i used a graphing calculator that was the only one that had more of a positive outcome
What is the solution to this equation? 2x - 5 + 3x = 35 A. x = 6 B. x = 8 C. x = 20 D. x = 15
Answer:
B. x = 8
Step-by-step explanation:
There are 6 people at a party. if each person must shake hands with other every other person at the party exactly once how many handshakes will there be
Answer:
If six people all shake hands with each other, how many hand shakes were made in total?
Publish your book. Become an author in 15 days. Get published.
I assume that no two people shake hands if they've already shaken them earlier, irrespective of who initiated it.
In that case Guest 1 will shake hands with 5 others (Guest 2 to 6)
Guest 2 will shake hands with 4 others (Remember she's already shaken hands with Guest 1).
Guest 3 will shake hands with 3 others (having already shaken hands with Guest 1 and 2)
and so on.....
We end up with 5+4+3+2+1 handshakes or 15 handshakes in all!
Step-by-step explanation:
please mark me as a brainlist...
Answer:
15 handshakes
Step-by-step explanation:
the 1st person shakes hands with 5 people
the 2nd person shakes hands with 4 people
the 3rd person shakes hands with 3 people
the 4th person shakes hands with 2 people
the 5th person shakes hands with 1 person
the 6th person shakes hands with no one
5+4+3+2+1=15
Which list of fractions is in order from smallest to largest
A. 3/10, 3/5, 3/4, 3/12
B. 3/4, 3/5, 3/10, 3/12
C. 3/5, 3/4, 3/12, 3/10
D. 3/12, 3/10, 3/5, 3/4
Answer: D. 3/12, 3/10, 3/5, 3/4
Step-by-step explanation:
The denomination decreases every time making the fraction bigger
Choose the correct answer below.
A. The level of significance, , is the probability of committing a Type I error, rejecting the null hypothesis when it is, in fact, true.
B. The level of significance, , is the probability of committing a Type I error, rejecting the null hypothesis when it is, in fact, true.
C. The level of significance, , is the probability of committing a Type II error, not rejecting the null hypothesis when it is, in fact, false.
D. The level of significance, , is the probability of committing a Type II error, rejecting the null hypothesis when it is, in fact, true.
E. The level of significance, , is the probability of committing a Type II error, rejecting the null hypothesis when it is, in fact, true.
F. The level of significance, , is the probability of committing a Type I error, not rejecting the null hypothesis when it is, in fact, false.
Answer: The level of significance, , is the probability of committing a Type I error, rejecting the null hypothesis when it is, in fact, true.
Step-by-step explanation:
The significance level, which is commonly designated as alpha (α) is defined the probability of rejecting the null hypothesis when it is in fact, true.
To determine statistical significance, a researcher is expected to calculate a p-value. The researcher can reject the null hypothesis if the p -value is less than α as established by the researcher.
what does the n mean in math
Answer: natural numbers
Step-by-step explanation:
Solve the following equations, and explain
6. 6x + 3 = 5x + 10
Mrs. Ross needs to buy dish soap. There are four differently sized containers. Sort the brands from least to the greatest unit price. Round each unit price to the nearest thousandth.
Answer: Spotless soap < Bright wash < Lemon bright < lot of suds
Step-by-step explanation:
Given that 8 oz of Lots of suds cost = $0.98
Then unit price of 1 lot of suds = 0.98/8 = $0.1225
Given that 12 oz of Bright wash cost = $1.29
Then unit price of 1 Bright wash = 1.29/12 = $0.1075
Given that 30 oz of Spotless soap cost = $3.14
Then unit price of 1 Spotless soap = 3.14/30 = $0.104666666667
Given that 32 oz of Lemon bright cost = $3.50Then unit price of 1 Lemon bright = 3.50/32 = $0.109375
We also need to round the values to the nearest thousandth means three digits after decimal
Then unit price of 1 lot of suds = $0.123
unit price of 1 Bright wash = $0.108
unit price of 1 Spotless soap = $0.105
unit price of 1 Lemon bright = $0.109
Now we can easily sort them
0.105 < 0.108 < 0.109 < 0.123
respective names in sorted order are:
Spotless soap < Bright wash < Lemon bright < lot of suds
The perimeters of the triangles shown are equal. Find the side lengths of each
triangle
2x+9
2x+8
2x
2x
R
3x+4
2x
PQ =
QR =
AB
BC=
AC = 1
(Type a whole number.)
PR
