Answer:
4x
Step-by-step explanation:
In algebra, to avoid confusing the multiply sign and x, we always just put the terms next to each other to show that they multiply each other. Here, since x is unknown, we can't find a specific answer and therefore just write it as 4x, which means 4 times x.
Melanie invested $63,000 in an account paying an interest rate of 7\tfrac{1}{8}7
8
1
% compounded quarterly. Lillian invested $63,000 in an account paying an interest rate of 7\tfrac{3}{8}7
8
3
% compounded continuously. After 15 years, how much more money would Lillian have in her account than Melanie, to the nearest dollar?
Answer:
$8727
Step-by-step explanation:
The difference in investment values can be found by computing the value of each investment, then finding the difference. Here, we're concerned with investments compounded quarterly and compounded continuously.
a)Melanie's investment value is computed using the formula ...
FV = P(1 +r/n)^(nt) . . . . where P is the principal, r is the annual rate, t is the number of years
FV = $63,000(1 +0.07125/4)^(4×15) = $63,000(1.0178125^60)
FV = $181,721.94
__
b)Lillian's investment value is computed using the formula ...
FV = Pe^(rt)
FV = $63,000·e^(0.07375×15)
FV = $190,449.05
__
c)The amount more that Lillian has is ...
$190,449.05 -181,721.94 = $8,727.11
Lillian has about $8727 more than Melanie.
_____
Additional comment
The interest rates expressed as decimal values are ...
7 1/8% = 0.07125
7 3/8% = 0.07375
What is mode for this data set 41,43,45,3,11, 23,
Answer:
there is no mode
Step-by-step explanation:
None of the numbers repeat more than once
Last year, 15 dogs entered the local dog show. This year, 20 entered. What is the percent increase?
Answer: 0.75?
Step-by-step explanation:
This might be wrong but, you cross multiply and then divid by one hundred.
5 x. 100x 75 / 100
100. 15
Answer:
the answer is 33 1/3%
Step-by-step explanation:
I took the test
Brianna needs to contact members of the softball league. She calls 2 members of the softball league. Those 2 people each call 2 more people in the afternoon. That evening, those additional people each call 2 others. How many people are called that evening?
Answer:
8
Step-by-step explanation:
because I plus all 2 and say evening how many see
Area of a circle
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Find the area of a circle with a radius of 2.
Either enter an exact answer in terms of IT or use 3.14 for TT and enter your answer as a decimal.
units
2
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Stuck? Review related articles/videos or use a hint.
Answer:
12.56
Step-by-step explanation:
π x 2² = π x 4 = 3.14 x 4 = 12.56
Choose the equation that represents a line that passes through points (-6, 4) and (2.0).
The graph of y = f ′(x) is shown below. List the intervals where the graph of f is decreasing.
Graph consists of 3 line segments from x equals negative 4 to x equals 4. Graph is decreasing from x equals negative 4 to x equals negative 2, increases from x equals negative 2 to x equals 2 and decreases from x equals 2 to x equals 4. There are x intercepts at x equals negative 4, 0 and 4.
(–4, –2)
(–2, 2)
(–4, 0)
(0, 4)
Answer:
try substituting it should get you the correct answer if not im sorry.
Step-by-step explanation:
Two adults and one child go to a movie and pay $26. One adult and 3 children pay
$28. How much would it cost for one adult and one child to see the movie?
Answer:
adults pay $10
children pay $6
Step-by-step explanation:
x = adult
y = child
2x + y = 26
x + 3y = 28
you want to cancel out x or y
multiply -2 with (x + 3y = 28) which is -2x -6y = -56
2x + y = 26
-2x -6y = -56
-5y = -30
y = 6
put y back into an equation
2x + y = 26 is
2x + 6 = 26
x = 10
check the answer
Two adults and one child go to a movie and pay $26
20 + 6 = 26 : checks
One adult and 3 children pay $28
10 + 18 = 28 : checks
Karen started painting the walls at 9:25 am, and she said that she would finish the job at 2:35 pm. Her mother said that three fourths of that time was enough to paint the walls. However, when Karen finished the job, they noticed that it actually took her 2/3 of an hour longer than the time predicted by the mother. How much longer did Karen predict it would take then the time it actually took her to complete the job (what part of an hour)?
Answer:
She predicted it would take her 2/3 of an hour less than it actually took her.
Step-by-step explanation:
Answer:
2/3 of an hour less than it actually took her.
Step-by-step:
Not the Karen's hahahaha
1/8 expressed as a percentage is
Answer:
The answer is 12.5%
Step-by-step explanation:
Hope this helped!
Answer:
12.5%
Step-by-step explanation:
Divide 1 by . Therefore, the fraction 18 is equivalent to 12.5% .
f(x) = x4 +x - 5, find f(0).
Answer:
f(0) = -5
Step-by-step explanation:
f(x) = x^4 +x - 5
Let x=0
f(0) = 0^4 +0 - 5
= -5
This week, max worked 15 hours and made $ 131.25. last week, he made $157.50. How many hours did he work ?
Max worked hours.
will mark brainlest
Answer:
18
Step-by-step explanation:
131.25/15=8.75
8.75x18=157.50
Answer:he worked 18 hours
Step-by-step explanation: if he made 131.25 in 15 hours ( 131.25 divided by 15= 8.75) so 8.75$ is how much he makes an hour so 157.50 divided by 8.75 = 18 so max worked 18 hours and made 157.50$
The grocery store makes a 32% profit on deli foods. The profit for the
deli last month was $640. What was the total sales for the deli last
month?
Answer:
$2000
Step-by-step explanation:
The profit is the money earned by the store, meaning in this case, it's 32%. 32 percent of an amount is equal to 640. Set up an equation: 0.32(x) = 640, where x is the total money earned including the profit. x is solved to be 2000 dollars.
Need help with this only 25 minutes
-31.25 + 19.70
explanation:
change in account = withdraw amount + amount deposited
change in account:
-31.25 + 19.70
note: withdrawal will be negative and deposited positive
Please help me I do not understand
Answer:
x = 12
Step-by-step explanation:
x⁹ = 12² • 12⁷
x⁹ = 12²+⁷
x⁹ = 12⁹
x = 12
You have 12 coins. Some quarters and dimes. You have a total of $2.40, how many of each coin do you have?
Answer:
8 quarters and 4 dimes
Step-by-step explanation:
4 quarters = 1 dollars
4 quarters = 1 dollars
4 dimes = 40 cents
2.40$
============================================
Work Shown:
d = number of dimes
q = number of quarters
1 dime = 10 cents
d dimes = 10d cents
1 quarter = 25 cents
q quarters = 25q cents
d+q = 12 since we have 12 coins total
q = -d+12 after solving for q
10d+25q = total value in cents
10d+25q = 240
10d+25(-d+12) = 240 ... plug in q = -d+12
10d-25d+300 = 240
-15d+300 = 240
-15d = 240-300
-15d = -60
d = -60/(-15)
d = 4
q = -d+12
q = -4+12
q = 8
Since d = 4 and q = 8, this means we have 4 dimes and 8 quarters
-----------------------------
Check:
4 dimes = 4*10 = 40 cents
8 quarters = 8*25 = 200 cents
(4 dimes) + (8 quarters) = (40 cents) + (200 cents) = 240 cents
240 cents = 240/100 = $2.40
We have 4+8 = 12 coins total
The answers are confirmed
BRAINLIEST AND 100 POINTS, I NEED THIS ANSWER IMMEDIATLY.
Please, tell me the answer, AND what to shade.
Answer:
10 centimeters = 0.1 meters
Step-by-step explanation:
Question
How many meters are in 10 centimeters?
There are 100 centimeters in 1 meter.
Therefore, 1 centimeter = 1 ÷ 100 meters
= 0.01 meters
So if 1 centimeter = 0.01 meters
Then 10 centimeters = 0.01 × 10 = 0.1 meters
there are 880 student in a school . if 75% of students passed the final exam find the number of passed and failed student
The function is defined as follows for the domain given.
f(x)=3x+2, domain = (-2,-1,0, 1}
What is the range?
Answer:
just go to Khan academy, they explain how to get it there. that way you'll learn how to do it while also getting the answer
As part of a science experiment, Sam recorded the four values shown in the table, but one of them got smudged on his paper. He remembers that the sum of the trials was −1. What was the value that was smudged?
Trials
−9
12
(smudged)
−8
A) 2
B) −2
C) −4
D) 4
Answer:
C
Step-by-step explanation:
ok so sam started with 0 and got -9 then he got 12 then the next known number is -8 so those three numbers together are -5 and the end result was -1 so -1 minus -5 is -4 therefore the anser is C
Which place is in the thousand place in 4,968,123
Answer:
The "8"
Step-by-step explanation:
Here's a simplified reason why:
When you start from the 3, that should be the one digit.
The 2 shall be tens
The 1 shall be hundreds
AND FINALLY, THE 8 which is the thousands place.
Combine like terms. 5y - 8 - y
hence the combination=
[tex] \bold {4y - 8}[/tex]
All the best !
Answer:
4(y-8)
Step-by-step explanation:
5y-y (1) = 4y-8
4 (y-8)
Moving to another question will save this response.
Question 1
Solve the equation for X.
4(3x + 2) = 68
Answer:
x=5
Step-by-step explanation:
1. Open the parenthesis:
12x+8=68
2. Subtract 8 from both sides
12x=60
3. Solve for x:
x=60/12
x=5
Answer:
x=5
Step-by-step explanation:
4(3x+2=68
x=5
this is the answer
In which number is the digit 8 ten times larger than it is in the number 18?
Answer:
387 contains 80 and 8 x 10 = 80
Solve for x 64^x^2 = 256^x
Answer:
x = 0, 1.333333...
Step-by-step explanation:
1) Convert both sides to the same base.
[tex]16^{1.5x^{2} } =16^{2x}[/tex]
2) Cancel the base of 16 on both sides.
[tex]1.5x^{2} =2x[/tex]
3) Move all terms to one side.
[tex]1.5x^{2} -2x=0[/tex]
4) Factor out the common term x.
[tex]x(1.5x-2)=0[/tex]
5) Solve for x.
1 - Ask: When will x(1.5x-2) equal zero?
When x = 0 or 1.5x - 2 = 0
2 - Solve each of the 2 equations above.
x = 0, 1.333333...
Factor the trinomial.
x² - 2- 8
Please Help
Which expressions are equivalent to 7(-4/3 x -3)? Select two options.
Answer:
Step-by-step explanation:
7(-3/4x-3) is the same as
7(-3/4x)-7(3) and
-5 1/4x-21
Let me explain this a little bit more.
If you take the 7 times the first part or -3/4x you get 7(-3/4x) You take 7 times the second part you get -7(3)
When you actually solve them:
7(-3/4x) = -5 1/4x and -7(3) = -21.
hope this helps.
Aunt Jane weighs 45 newtons. What is her mass in kilograms?
Answer:
45 newtons = 10.1164024 pounds/force
Step-by-step explanation:
Hope this helps!!!
The required mass of Aunt jane is given as 4.5 kilograms.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
Given that, Aunt Jane weighs 45 newtons.
So,
F = 45
Since F = Mg,
Mg = 45
M(10) = 45
N = 4.5 kilograms,
Thus, the required mass of Aunt jane is given as 4.5 kilograms.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ2
How do you graph the function y=1/5x+4
You substitute x or y values and then plot the solution point that you find. You should plot at least three solution points. For example, here is a solution table that can be used to graph this function.
x | y
___
5 | 5
10 | 6
15 | 7
1st person to answer you get brainest