Answer:
- 1/4 ( 1 + 2y)
Step-by-step explanation:
Ms. Watson's age is 5 years more than 2 1/2 times her son's age. She is 55 years old. How old is her son, in years?
Plzz hurry
Answer:
20 years old
Step-by-step explanation:
Let us assume that the son's age is x.
Therefore,
2.5x = 55 - 5
2.5x = 50
x = 20 years old
hope this helps :)
Given: 5x + 3 > 4x + 7.
Choose the graph of the solution set.
[tex]\boxed{\boxed{\pink{\bf \leadsto Option \ A \ is \ correct . }}}[/tex]
Step-by-step explanation:For the number line refer to the attachment :
A linear inequality is given to us . And we need to find the correct number line. So the given linear inequality is :-
[tex]\bf \implies 5x + 3 > 4x + 7 \\\\\bf\implies 5x - 4x > 7 - 3 \\\\\bf\implies \boxed{\red{\bf x > 4 }}[/tex]
This implies that the value of x is Greater than 4 . That is the inequality can have all the values more than 4. So when we see the given number lines we see that the first number line represents all values greater than 4 .
Hence the first graph of the solution set represents the given linear inequality.Answer: B is correct
Step-by-step explanation: Tried a on the test, got it wrong, then tried b and got it right.
I need help now :)
...........
Step-by-step explanation:
-2x² + 5x - 3 - (-7 - 9x + 5x²)
= -2x² + 5x - 3 + 7 + 9x - 5x²
= -7x² + 14x + 4.
Hence the coefficient of the x term is 14.
I’m not entirely sure with this question! Giving brainliest answer. :)
3a+7
Step-by-step explanation:
Today Olivia has $127 in her savings account. She will deposit $5 into the account each week given x < 0 whitch function represents the amount in Olivias savings account after x weeks
Answer:
y = 127 + 5x
Step-by-step explanation:
Today Olivia has $127 in her savings account. She will deposit $5 into the account each week given x < 0
Let x = number of weeks Olivia deposits money.
y = Total pint of money that Olivia has in her account after x weeks
Hence, the function represents the amount in Olivias savings account after x weeks is ;
y = $127 + $5 × x
x < 0
y = 127 + 5x
how many solutions does the system of equations have?(1 point)
3x=-12y+15 and x+4y=5
A-one
B-two
C-infinitely many
D-none
Answer:
c
Step-by-step explanation:
First, I'll isolate the x in x+4y=5 to match with the other equation.
The new equation would be x= -4y+5
Next, we will multiply one equation by 3 and the other by -1 for both to match with the other.
-1(-12y + 15 = 3x )
3(-4y + 5 = x)
The new equations would be :
12y - 15 = -3x
-12y + 15 = 3x
Add the equations and you get
0 = 0
The equation has an infinite amount of solutions
The planet mercury makes its circuit around the sun in 88 days. Venus takes 225 days to complete it's circuit. Venus's travel time is what percent of Mercury's travel time?
Answer:
255.682%
Step-by-step explanation:
From the above question:
The planet mercury makes its circuit around the sun in 88 days.
Venus takes 225 days to complete it's circuit.
Venus's travel time is what percent of Mercury's travel time?
This is calculated as:
(Number of days Mercury take to complete it's circuit/Number of days Venus takes to complete it's circuit) × 100
= 225/88 × 100
= 2.5568181818181817 × 100
= 255.68181818%
Approximately = 255.682%
Venus's travel time is 255.682 percent of Mercury's travel time
Gravitational potential energy and kinetic energy make up what type of energy?
A. mechanical
B. chemical
C. electrical
D. sound
Answer:
A
Step-by-step explanation:
i hope this is right
Hi please help me thank you!
THe correct option is the 3rd option
Will give brainliest
Answer:a,cd,and h
Step-by-step explanation:
Determine the value for x and y
I’ll give brainliest pls help
Answer:
x = 10 and
[tex]y = 2 \sqrt{29} [/tex]
Step-by-step explanation:
see the explanation in attachment.
Alexandra worked 5 hours on Monday, 4.5 hours on Tuesday, and 2.5 hours on Wednesday. Which is closest to the mean number of hours she worked over the three-day period?
5 + 4.5 + 2.5 = 12 ÷ 3 = 4
how I know mean is when you add each together then divide it by how many things you added together so we added 3 things together so just divide your answer by 3.
please help me answer this question its urgent
Answer:
Step-by-step explanation:
1). [tex]\frac{2}{3}n-\frac{3}{4}n+\frac{1}{6}n+2\frac{2}{9}n[/tex]
= [tex]\frac{2}{3}n-\frac{3}{4}n+\frac{1}{6}n+(2+\frac{2}{9})n[/tex]
= [tex](\frac{2}{3}-\frac{3}{4}+\frac{1}{6})n+(2+\frac{2}{9})n[/tex]
= [tex](\frac{8}{12}-\frac{9}{12}+\frac{2}{12})n+(2+\frac{2}{9})n[/tex]
= [tex]\frac{(8-9+2)}{12}n+(2+\frac{2}{9})n[/tex]
= [tex]\frac{1}{12}n+(2+\frac{2}{9})n[/tex]
= [tex](\frac{1}{12}+2+\frac{2}{9})n[/tex]
= [tex](\frac{3}{36}+\frac{72}{36}+\frac{8}{36})n[/tex]
= [tex]\frac{83}{36}n[/tex]
= [tex]2\frac{11}{36}n[/tex]
2). [tex]\frac{2}{5}g-\frac{1}{6}-g+\frac{3}{10}g-\frac{4}{5}[/tex]
= [tex](\frac{2}{5}-1+\frac{3}{10})g-(\frac{1}{6}+\frac{4}{5})[/tex]
= [tex](\frac{4}{10}-\frac{10}{10}+\frac{3}{10})g-(\frac{5}{30}+ \frac{24}{30})[/tex]
= [tex](\frac{4-10+3}{10})g-(\frac{5+24}{30})[/tex]
= [tex]\frac{-3}{10}g-\frac{29}{30}[/tex]
= [tex]-\frac{3}{10}g-\frac{29}{30}[/tex]
3). [tex]i+6i-\frac{3}{7}i+\frac{1}{3}h+\frac{1}{2}i-h+\frac{1}{4}h[/tex]
= [tex]7i-\frac{3}{7}i+\frac{1}{2}i+\frac{1}{3}h-h+\frac{1}{4}h[/tex]
= [tex](7-\frac{3}{7}+\frac{1}{2})i+(\frac{1}{3}-1+\frac{1}{4})h[/tex]
= [tex](\frac{98}{14} -\frac{6}{14}+\frac{7}{14})i+(\frac{4}{12}-\frac{12}{12}+\frac{3}{12})h[/tex]
= [tex](\frac{98-6+7}{14})i+(\frac{4-12+3}{12})h[/tex]
= [tex]\frac{99}{14}i-\frac{5}{12}h[/tex]
2. Lorena is trying to choose between two different savings accounts at H-Town Bank. She will deposit $3,500 dollars and will leave the money in the account for 12 years. There will be no additional money deposited or withdrawn from the account.
Answer:
First of all, this question is not complete. So, we will be hypothetically create two accounts and try to choose the one with the greater profit.
Choice 1 = X = Final Amount after 12 years = $5600
Choice 2 = Y = Final Amount after 12 years = $6285.50
Hence, Lorena should choose choice 2, as it gives more profit over than choice 1.
Step-by-step explanation:
First of all, this question is not complete. So, we will be hypothetically create two accounts and try to choose the one with the greater profit.
Initial Deposit Amount = $3500
Time period = 12 years
Let's Suppose Lorena has two X and Y choices of accounts at H-town Bank.
X = simple interest of 5% over the initial amount for 12 years.
Y = Compound interest 5% over the initial amount for 12 years.
Solution:
Let's calculate the profit for choice 1 = X
Simple interest = 5%
Initial amount = $3500
Time period = 12 years
Formula = A = P (1 + rt)
where, A = Final amount after 12 years
t = time period in years = 12
P = initial amount to be deposited = $3500
r = annual interest rate = 5%
Plug in the values to get the total amount.
A = 3500(1+0.05x12)
A = $5600 = final amount Lorena will get after 12 years.
Let's calculate the profit for choice 2 = Y
Compound interest = 5%
Initial amount = $3500
Time period = 12 years
Formula = A = P [tex](\frac{r}{n} + 1)^{nt}[/tex]
where,
A = Final amount after 12 years
t = time period in years = 12
P = initial amount to be deposited = $3500
r = annual interest rate = 5%
n = number of times interest rate is applied or compounded. = 12
Plug in the values to get the total amount.
A = P [tex](\frac{r}{n} + 1)^{nt}[/tex]
A = $6285.50
Hence, Lorena should choose choice 2, as it gives more profit over than choice 1.
What’s the slope of this ?
Step-by-step explanation:
The two given equations have slope -1/2 and 2 and are perpendicular lines.
The lines on the graph are different from the equations at left.
Their slopes are 2 and 1/2. Since they are not opposite reciprocals, they are not perpendicular.
3. A bag contains 46 blue ballons, 30 red ballons, and 24 purple ballons.
What is the probability of choosing a red ballon as a fraction in lowest
terms ? *
A 3 out of 10
B 3 out of 7
C 1 out of 3
D 1 out of 4
What is the slope intercept in equation y = x-4
Answer:
Y = x - 4
Step-by-step explanation:
it’s already in y = Mx + b form
Evaluate |-15| - |-9|
Answer:
6
Step-by-step explanation:
|-15| - |-9|
15 - 9 = 6
The expression is an illustration of absolute values and signs.
The result of evaluating |-15| - |-9| is 6
Given
[tex]|-15| - |-9|[/tex]
Remove absolute brackets
[tex]|-15| - |-9| = 15 - 9[/tex]
Evaluate the expression 15 - 9
[tex]|-15| - |-9| = 6[/tex]
Hence, the evaluation of |-15| - |-9| is 6
Read more about absolute values at:
https://brainly.com/question/1301718
Solve the system of equations.
Answer:
x = -2y
Step-by-step explanation:
Step 1. x + 2y = 0
Step 2. x + 0 = -2y
Step 3. x = -2y
Hello I’m davine and I have a question
some of you might even know me from tïktök though
Answer:
C. 8
the answer is eight or C whatever
What is the value of X?
The answer is x = 11/36
lt is 100% right
i need help plsssssssss
Answer:
Step-by-step explanation:
A number went into this machine and 57 came out.
What number went in?
Answer:
47.5
Step-by-step explanation:
47.5=100%
57=120%
The input value is 47.5 when the output is 57.
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.
Given:
When the output is 120%, the input is 100%.
And the output is 1.2 times the input.
So, we have the output 57.
To find the input number:
Use division process,
The required number = 57 /1.2
The required number = 47.5.
Therefore, the number is 47.5.
To learn more about the division;
https://brainly.com/question/13263114
#SPJ2
HELP PLSPLS QUICKPLSSSSSSSSSSSS
Answer:
Step-by-step explanation:
11/12 - 5/8 = ? Make the denominator the same (multiply the first term by 2 and the second term by 3).
22/24 - 15/24 = ? Just simplify/solve. 22-15=7.
7/24
OPTION A = 7/24
0.625 divided by 0.56
Answer:
1.116071429
Step-by-step explanation:
This is an irrational number, but if you round it, it should be about 1 or 1.12. You can put this in the calculator btw :)
giving BRAINLEST PLEASE HELP!
Answer:
The answer to the first one should be $27.32 is what the full bill costs with tax.
The answer to the second one they added an 18% tip ontop.
Step-by-step explanation:
The explanation for the second one is 27.32*.18=4.92+27.32=32.24 meaning they gave an 18% tip.
2(5x+3) ? what is the question
Hey there!
“2 (5x + 3)”
• FIRST and ONLY STEP: DISTRIBUTE 2 to ALL OF YOUR NUMBERS in the parentheses
2(5x) + 2(3)
2(5x) = 10x ⬅️ FRONT number
2(3) = 6 ⬅️ BACK number
BOTH OF YOUR NUMBERS ARE POSITIVE SO WE DON’T HAVE TO CHANGE ANYTHING
Answer: 10x + 6 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Answer:
10x+6
Step-by-step explanation:
you have to multiply 2 times 5 then 2 times 3 then multiply 10 times x and write 6 beside it.
Question 4 (1 point)
A ball is thrown from a mountain 960 feet high, into the air with an upward velocity of 64 ft/s. When did the ball hit the
ground? And What was the max height it reached?
Answer:
The ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Step-by-step explanation:
Height of a mountain, h = 90 feet
Upward velocity of a ball, u = 64 ft/s
Its height as a function of time can be written by using the second equation of motion as follows :
[tex]f(x) = -16t^2 + 64t + 960[/tex] .....(1)
When it will hit the ground, f(x) = 0
[tex]-16t^2 + 64t + 960=0\\\\16(-t^2+4t+60)=0\\\\-t^2+4t+60=0[/tex]
It is quadratic equation.
t = -6 s and t = 10 s
Neglecting -6 seconds, the ball will hit the ground at 10 seconds.
For maximum height,
Put f'(x) = 0
[tex]-32t+64=0\\\\\\t=\dfrac{64}{32}\\\\t=2\ s[/tex]
Put t = 2 in equation (1)
[tex]f(2) = -16(2)^2 + 64(2) + 960\\\\=1024\ \text{feet}[/tex]
Hence, the ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Need help thanks .....
Solve the literal equation for y.
2x – xy = 3
Answer:
Step-by-step explanation:
2x-xy=3
-xy=3-2x
y=3-2x/x
Answer:
[tex]y = - \frac{3}{ x} + 2[/tex]
Step-by-step explanation:
So we want y to be on a side by itself.
2x-xy=3
Subtract 2x from each side
-xy=3-2x
divide each side by -x
[tex]y = \frac{3}{ - x} + 2[/tex]
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!