Final answer:
Dustin is currently 9 years old.
Explanation:
The question is asking us to solve for Dustin's current age given a relationship between his age and Elias's. To solve the problem, we need to set up an equation where Dustin's current age is represented by D and Elias's current age is represented by E.
We are told that Dustin is 11 years younger than Elias, which gives us the first equation:
E = D + 11
In two years, Dustin will be half as old as Elias. We can represent this future scenario with another equation:
D + 2 = (E + 2) / 2
To find Dustin's age, we will solve these two equations simultaneously. By substituting the expression for E from the first equation into the second equation, we get:
D + 2 = (D + 11 + 2) / 2
The equation simplifies to:
D + 2 = (D + 13) / 2
Now, we simplify and solve for D:
Multiply both sides of the equation by 2 to eliminate the fraction: 2(D + 2) = D + 13Distribute and simplify: 2D + 4 = D + 13Subtract D from both sides: D + 4 = 13Finally, subtract 4 from both sides to find D: D = 9Therefore, Dustin is currently 9 years old.
An equivalent equation has been written by multiplying the second equation by 2. 4x – 9y = 7 4x – 9y = 7 2(–2x + 3y = 4) → –4x + 6y = 8
Answer: answer is (-19/2,-5)
Step-by-step explanation:
This diagram of airport runway intersections shows two parallel runways. A taxiway crosses both runways. How are 6 and 2 related?
corresponding angles
alternate interior angles
same-side interior angles
none of these
Write the slope intercept form of the equation of the line through the given points.
Explanation, please! Thank you!
the store has 53 cases of apples and oranges in a storm if there are 28 cases of apples how many cases of oranges are there in the store room
Use the definition of the derivative to find the derivative of: f(t)=14−5tf(t)=14−5t.
f′(t)=
f′(t)=
Valentine purchased 200 beads for $48 to make necklaces. If she needs to buy 25 more beads,how much will she pay if she is charged the same rate?
cory earns 52.50 in 7 hours. find the unit rate
divide 52.5o by 7
52.50 / 7 = 7.50 per hour
A pile of coins, consisting of quarters and half dollars, it worth $11.75. If there are 2 more quarters than half dollars, how many of each are there?
Let the number of half dollars be x,
number of quarters = x + 2
amount of half dollars = 0.5x
amount of quarters = 0.25(x + 2)
= 0.25x + 0.5
total amount = 0.5x + 0.25x + 0.5
= 0.75x + 0.5
0.75x + 0.5 = 11.75
0.75x = 11.25
x = 15
number of quarters = x + 2
= 15 + 2
= 17
There are 17 quarters and 15 half dollars.
Julio works at an electronics store where he earns $11 an hour. Last week, he received a $120 bonus. How many hours did he work if he earned $505 total last week?
A doctors office schedules 15-minute appointments and half hour appointments for week days. The doctor limits these appointments to, at most, 30 hours per week. Write an inequality to represent the number of 15-minute appointments x and the number of half-hour appointments y the doctor may have in a week
Daily output of marathon's garyville, lousiana, refinery is normally distributed with a mean of 232,000 barrels of crude oil per day with a standard deviation of 7,000 barrels. (a) what is the probability of producing at least 232,000 barrels?
Glenn invested $22,000 at 7% interest compounded annually. How much interest will Glenn earn in 3 years?
$19,826.24
$20,837.25
$2340.23
$4950.95
Round off446,221 to the nearest ten
Answer:
Answer when we round off 446,221 to the nearest ten is 446,220
Step-by-step explanation:
We need to round off 446,221 to the nearest ten.
Nearest ten to the 446,221 can be 446,220 or 446,230
Difference between 446,221 and 446,220 = 446,221 - 446,220 = 1
Difference between 446,221 and 446,230 = 446,230 - 446,221 = 9
Here the difference is minimum for 446,220
Answer when we round off 446,221 to the nearest ten is 446,220
An overdraft balance occurs when the available balance in a bank account is below zero. Yvonne has an overdraft balance at the beginning of the year. The function graphed models Yvonne's account balance, y, in dollars, x weeks after the beginning of the year.
Select True or False to describe each statement.
True False
The x-intercept represents Yvonne's account balance at the beginning of the year.
The slope represents the amount Yvonne deposits to her account each week.
Yvonne no longer has an overdraft balance 4 weeks after the beginning of the year.
Graph of a line on a coordinate plane. The horizontal x axis ranges from 0 to 9 in increments of 1. The vertical y axis ranges from negative 100 to 100 in increments of twenty five. A line passes through the points begin ordered pair 0 comma negative 1 hundred end ordered pair and begin ordered pair 4 comma 0 end ordered pair and begin ordered pair 8 comma 1 hundred end ordered pair.
Answer:
False; True; True.
Step-by-step explanation:
In this situation, the y-intercept would represent the amount of money in her account at x=0 weeks, or the beginning of the year. This is not the x-intercept, so the first statement is false.
The slope is the rate of change. This would describe how her account changes every week, so this represents the amount of money she deposits into her account each week. This means the second statement is true.
The line goes through the point (4, 0). Since x is the number of weeks, this would represent the amount in her account after 4 weeks. Since the y-value is 0, this means she no longer has an overdraft balance after 4 weeks. This means the second statement is true.
Following are the response to the given points:
The y-intercept, it would represent the number of funds in her account at x=0 weeks, or the start of the year. As this is not the x-intercept, the first assertion is untrue.The rate of increase is represented by the slope. This would illustrate how her account varies, That's the sum of money she puts into her account each week. This point is crossed by the line (4, 0), since x is indeed a couple of weeks, this is the amount in the account following 4 weeks. Since y-value=0, she no longer has an overflow balance after 4 weeks.Therefore, the final answer is "false, true, and true".
Learn more:
there are 24 sixth graders and 40 seventh graders. Mr chan wants to divide both grades into groups of equal size ,with the greatest possible number of students in each group. How many students should be in each group?
General house cleaning (sweeping the floor vacuuming laundry) can burn 470 calories every two hour determine the unit rate
Answer:
The unit rate is 235 calories per hour.
Step-by-step explanation:
General house cleaning (sweeping the floor vacuuming laundry) can burn 470 calories every two hour determine the unit rate.
Unit rate means we have to find the calories burned in 1 hour.
Hence, calories burned in 1 hour = [tex]\frac{470}{2}= 235[/tex]
Answer :
The unit rate is 235 calories per hour.
A cylinder has a volume of 360 in^3. If the height and radius are multiplied by 2.5, what will the resulting volume be?
A) 5525 in^3
B) 2880 in^3
C) 5400 in^3
D) 3600 in^3
you invest 1600 in an account that pays an interest rate of 6.5%, what is your balance after 6 years and round your answer to the nearest hundredth.
To calculate the balance after 6 years with compound interest, use the formula Balance = Principal * (1 + Interest Rate)^Time. Substituting the values, we find the balance to be approximately $2,243.89.
Explanation:To calculate the balance after 6 years, we need to use the formula for compound interest:
Balance = Principal * (1 + Interest Rate)^Time
Given that the principal (initial investment) is $1600 and the interest rate is 6.5%, we can substitute these values into the formula:
Balance = 1600 * (1 + 0.065)^6
Calculating this, we find that the balance after 6 years is approximately $2,243.89.
The balance after 6 years is approximately $2105.69.
Explanation:To find the balance after 6 years, we can use the formula for compound interest:
Balance = Principal(1 + Interest Rate)^Ti
Plugging in the given values, we have:
Balance = $1600(1 + 0.065)^6
Simplifying, we get:
Balance = $1600(1.065)^6
Calculating, we find that the balance after 6 years is approximately $oxed{2105.69}.
How to write 645,300 in expanded form using exponents?
To express 645,300 in expanded form using exponents, it is written as [tex]6x10^{5} + 4x10^{4} + 5x10^{3}+ 3x10^{2}[/tex]x, breaking down each digit by its place value and expressing each as a power of 10.
To write the number 645,300 in expanded form using exponents, we break down each digit according to its place value and then express each of these as a power of 10. The place values for the number 645,300 are as follows:
600,000 which is 6 times 100,000
40,000 which is 4 times 10,000
5,000 which is 5 times 1,000
300 which is 3 times 100
Now we express these place values using exponents:
645,300 = [tex]6x10^{5} + 4x10^{4} + 5x10^{3}+ 3x10^{2}[/tex]
This notation shows the number 645,300 written as the sum of each digit multiplied by the appropriate power of 10 based on its position in the number.
Yesterday, Chau had m baseball cards. Today, he gave 5 away. Using m , write an expression for the number of cards Chau has left.
Alex was hired to unpack 576 items of glass wear, at five cents per piece unpacked. For every item broken in the process, however, Alex had to pay $1.98. At the end of the job, Alex received $22.71. How many items did Alex break.
Alex broke 3 glasses during the unpacking of the glasses.
As mentioned in the question, Alex was hired to unpack 576 items of glass wear, at five cents per piece unpacked. For every item broken in the process, however, Alex had to pay $1.98. At the end of the job, Alex received $22.71.
What is arithmetic?In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,
The total amount earned for 576 glasses is given as,
= 576 × 0.05
= $28.80.
Amount earned = $22.71
Amount paid by Alex for the broken glass = $28.80 - $22.71 = 6.09
Total glass broked = 6.09 / 1.98 ≈ 3
Thus, Alex broke 3 glasses during the unpacking of the glasses.
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What is the magnitude of the vector product? 4.00i + 7.00j?
A new computer game has been developed and 80 veteran game players will test its market potential. of sixty players liked the game, what is the probability that any veteran game player will like the new computer game
3/4 is the probability that any veteran game player will like the new computer game.
What is Probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.
Given,
New computer game has been developed and 80 veteran game players will test its market potential.
In this sixty players liked the game.
We need to find the probability that any veteran game player will like the new computer game.
To find the probability we just need to divide sixty by 80.
60/80
3/4
Hence 3/4 is the probability that any veteran game player will like the new computer game.
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Between white pair of numbers is a product of 200 and 89 and 7
WILL GIVE BRAINEST
a bean plant grows at a constant rate for a month....
Please me
Estimate 127+290
what is the coefficient in the expression 3x/13+4?
Answer:3/13
Step-by-step explanation:
Just took test
How many variables are displayed in a scatter plot
For the compound inequality x + 2 ≥ a AND x - 7 ≤ b, find values of a and b for which the only solution is x = 1.
what is 645 round to the nearest ten