Answer:
the 20 +2
Step-by-step explanation:
What is the value of (1)³ ?
Step-by-step explanation:
the value of 1³ is 1* 1*1 = 1
Hope it will help :)
Pls help me I’ll make brainliest
Answer:
60 cents for 1 pound
Step-by-step explanation:
2 pounds = $1.20
1 pound = 60 cents
A group of students were surveyed to find out if they like playing video games on a console/PC or on a phone/tablet. The results of the survey are shown below:
80 students like playing video games on a console/PC
20 students like playing video games on a console/PC but do not like playing on a phone/tablet
90 students like playing video games on a phone/tablet
40 students do not like playing video games on a console/PC
Make a two-way table to represent the data and use the table to answer the following questions.
Part A: What percentage of the total students surveyed like both playing video games on a console/PC and on a phone/tablet? Show your work and/or explain your thinking. (5 points)
Part B: What is the probability that a student who does not like playing video games on a console/PC also does not like playing on a phone/tablet? Explain your answer. (5 points)
Hey! Here is my answer for part A! I dont know part B, but i have Part A!
------------------------------------------------------------------------------------------------------∪ω∪
74% (Rounded)
I made a total of all the students, i added all of them and got 230 students in total. Then I took students who liked playing PC and Phone/Tablet, and added them which got me 170 (90 + 80). I used a calculator to find out what is the percentage for 170/230. Therefore, I rounded my conclusion to 74%.
Every hour, a research assistant removes half the mass of a bacteria culture originally weighing 4,800 micrograms to observe under a microscope. The research assistant will stop this process once the mass is equal to 300 micrograms.
Which equation represents this situation, and after how many hours will the research assistant stop removing half the mass of the bacteria culture?
Answer:
Step-by-step explanation:
4,800 mcg × 0.5^t = 300 mcg
0.5^t = 1/16 = (1/2)⁴
t = 4
Answer:
[tex]4,800\left(\frac{1}{2}\right)^{t} \, = \, 300; \ 3 \ \text{hours}[/tex]
Step-by-step explanation:
Every hour, the research assistant is removing half the mass from the original 4,800 micrograms of the bacteria culture. So, the mass remaining after t hours can be represented by an exponential expression, a(b)t, where a is the initial mass of the bacteria culture and b is the base of the exponent that represents the decay factor. Since half of the mass of bacteria is being removed every hour, half of the mass remains. So, b = [tex]\frac{1}{2}[/tex]. The exponential expression for this situation is [tex]4,800\left(\frac{1}{2}\right)^{t}[/tex].
The research assistant will stop removing half the mass from the original bacteria culture after the original bacteria culture has a mass of 300 micrograms. Hence, set the expression for the mass remaining after t hours equal to 300.
[tex]4,800\left(\frac{1}{2}\right)^{t} \, = \, 300[/tex]
In order to solve this equation for t, the base needs to be isolated. Divide both sides of the inequality by 4,800.
[tex]\begin{array}{rclC40C40} 4,800\left(\frac{1}{2}\right)^{t} &=& 300\\ \left(\frac{1}{2}\right)^{t} &=& \frac{1}{16} \end{array}[/tex]
Next, rewrite the base of [tex]\frac{1}{16}[/tex] as a power of [tex]\frac{1}{2}[/tex]. Then, set the exponents equal to each other to solve for t.
[tex]\begin{array}{rclC40C40C30} \left(\frac{1}{2}\right)^{t} &=& \frac{1}{16} \\ \left(\frac{1}{2}\right)^{t} &=& \left(\frac{1}{2}\right)^{4} \\ t &=& 4 \end{array}[/tex]
So, after 4 hours the research assistant will stop removing half the mass of the bacteria culture.
between x=2 and x=3, which function has a greater average rate of change than f(x)=2^x has?
Answer: f(3)
Step-by-step explanation:
First find the formula for the rate of change by taking the derivative of 2^x. Let f(x) equal some hypothetical y-value, then take the natural log of both sides.
[tex]y=2^x\\\ln(y)=x \ln(2)[/tex]
Implicitly differentiate the left side and take the derivative of the right side
[tex]\frac{y'}{y} =\ln(2)[/tex]
Multiply both sides by 'y' which was defined as 2^x
[tex]y'=\ln(2)*2^x[/tex]
Plug in x = 2 and x = 3 to see which slope is larger
[tex]y'=\ln(2)*2^2=4\ln(2)\\y'=\ln(2)*2^3=8\ln(2)[/tex]
Your cousin borrows $1125 to repair her car. The simple annual interest rate is 10%. She makes equal monthly payments of $25. How many years will it take to pay off the loan?PLEASE EXPLAIN. I know interest =. principal times rate times time
Answer:
neat
Step-by-step explanation:
can yoy please help solve yhis problem.2/5b+1=11
Answer:
(2/5)*b+1 = -11 // + 11
(2/5)*b+1+11 = 0
2/5*b+12 = 0 // - 12
2/5*b = -12 // : 2/5
b = -12/2/5
b = -30
b = -30
Step-by-step explanation:
hope this helped :)
Step-by-step explanation: First: Multiply 2/5 by 2. 5x2=10. 10 then turns into o a whole number +1=11.
10+1=11
Help ASAP!!!! Will mark you brainliest
Answer:
OK so... I know the answer to x(4)+4x(3)+5x(2)-4x-4 = -4
The part i don't understand is the f(x)=k=1 part.
Step-by-step explanation:
So overall the only answer I know is -4 Sry i couldn't help more.
Brainliest?
8k - 6 = 10k + 6
No idea how to figure this out
8k - 6 = 10k + 6
K= -6
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
8*k-6-(10*k+6)=0
Step by step solution :
STEP
1
:
Pulling out like terms
1.1 Pull out like factors :
-2k - 12 = -2 • (k + 6)
Equation at the end of step
1
:
STEP
2
:
Equations which are never true:
2.1 Solve : -2 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solving a Single Variable Equation:
2.2 Solve : k+6 = 0
Subtract 6 from both sides of the equation :
Which gives k = -6
Answer: K = -6
Step-by-step explanation:
When you add or subtract on one side, you have to do the same to the other side. You also have to get all the numbers with vairables on one side, and the ones without on the other side.
When you have a positive number, if you want to bring it to the other side, you have to subtract it. For example, if you want to bring 8k from the left side onto the right side, you have to subtract 8k from a number on the right side.
For this equation, lets bring all the numbers with vairables onto one side, and the ones without vairables on the other side. The ones with vairables will be on the left, and the numbers without will be on the right.
To bring 10k from the right side to the left, we have to subtract 10k from 8k. 8k - 10k = -2k.
Now we have to bring the -6 from the left side onto the right side. Since -6 is a negative number, we have to make it into a positive number to swap it to the other side. So it because 6. We add 6 to -6, and 6 to 6. The leaves the left side to be -2k, and the right side to be 12.
Now we have to divide. 12 ÷ -2 = -6. Therefore, k = -6. I hope this helps, and good luck on whatever you're doing :D
40 + [(5x 3) + (5 - 2)]
Answer:
58
Step-by-step explanation:
PEMDAS
50 points! I only want mhanifa to help me so no one else answer unless you actually know how to do it
Answer:
Bbc
Step-by-step explanation:
Which one goes in the box ? Pls help I’ll mark you brainly
Answer:
5 is co efficient
8x is term
9 is constant
Step-by-step explanation:
In a student council election, Kyle receives 54 votes for president. If Kyle receives 60% of the votes, how many students vote in the election?
Answer:
90
Step-by-step explanation:
60%-> 54
100%-> 90
There are 90 students vote in the election.
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
To Calculate the percent of a number , divide the number by whole number and multiply by 100
Given that
In a student council election, Kyle receives 54 votes for president.
Now,
Let total student votes in election = x
Hence we can formulate
60% of x = 54
60/100 × x = 54
60x = 5400
x = 90
Therefore, There are 90 student votes in the election.
Learn more about the percent visit:
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The average cost for vacation is $1050 if a family borrows money for the vacation at an interest rate of 11.9% for six months what is the total cost of the vacation including the interest on the loan
Solve.
5(a – 1) – 15 = 3(a + 2) + 4
Enter your answer in the box.
X
a = 15
5 (a - 1) - 15 = 3 (a + 2) + 4
Solution :[tex] \sf \dashrightarrow \: 5 (a - 1) - 15 = 3 (a + 2) + 4 [/tex]
[tex]\sf \dashrightarrow \: 5 \times a - 5 \times 1 - 15 = 3 \times a + 3 \times 2 + 4 [/tex]
[tex]\sf \dashrightarrow \: 5 a - 5 - 15 = 3 a + 6 + 4 [/tex]
[tex]\sf\dashrightarrow \: 5 a - 20 = 3 a + 10 [/tex]
[tex]\sf\dashrightarrow \: 5 a - 20 - 3a - 10 = 0 [/tex]
[tex]\sf\dashrightarrow \: 2 a - 30 = 0 [/tex]
[tex]\sf\dashrightarrow \: 2 a = 30[/tex]
[tex]\sf\dashrightarrow \: a = \cancel\dfrac{30}{2} [/tex]
[tex]\sf\dashrightarrow \: a = 15[/tex]
[tex] \Large \underline{\boxed{\tt{a = 15 }}}[/tex]
Hence, value of a = 15.3(2k-5)=6(k-4)+9
Determine whether the equation has one solution, no solution, or infinitely many solutions
Answer:
many solutions
Step-by-step explanation:
3×2k=????
3×5=??
6×k=??
6×4=??
then put all those together in a 2 step equation and then add 9 to the answer
The equation 3(2k-5)=6(k-4)+9 has infinitely many solutions.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
3(2k-5)=6(k-4)+9
In the given equation k is the variable
Now apply distributive property to the RHS and LHS wherever it is required
6k-15=6k-24+9
6k-15=6k-15
Shift all terms to one side
6k-15-6k+15=0
0=0
Hence the equation 3(2k-5)=6(k-4)+9 has infinitely many solutions.
To learn more on Equation:
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Which of the following statements is true? A square is ALWAYS a rectangle. A rectangle is ALWAYS a square. A rectangle is NEVER a square. A square is NEVER a rectangle.
Answer:
A square is always a rectangle
Step-by-step explanation:
Suppose you buy 2 marbles for $0.16 each. You pay for it with 4 quarters. How much change should you get back? Enter your answer.
Answer: You should get 0.68 back
Step-by-step explanation: I just did a test and got 100%
Answer:
3 $0.16 = $0.48
or
4 $0.25 = $1.00 hope this helps
Step-by-step explanation:
PLEASE ANSWER FAST I HAVE 30MINS!!!!!! Which graph shows the result of dilating this figure by a factor of 4 about the origin? On a coordinate plane, rectangle A B C D has points (negative 1, 1), (3, 1), (3, negative 1), (negative 1, negative 1). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 4, 4), (12, 4), (12, negative 4), (negative 4, negative 4). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 2, 2), (6, 2), (6, negative 2), (negative 2, negative 2). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 0.25, 0.25), (0.75, 0.25), (0.75, negative 0.25). (negative 0.25, negative 0.25). On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 0.5, 0.5), (1.5, 0.5), (1.5, negative 0.5), (negative 0.5, negative 0.5).
Answer:
2
Step-by-step explanation:
abshxhdbxbjsbxbsbxnd
Pls help I have today to finish this
Answer:
50
Step-by-step explanation:
because 50 pints
Answer:
50
Step-by-step explanation:
Suppose that a loan of $8000 is given at an interest rate of 13% compounded each year.
Assume that no payments are made on the loan.
Follow the instructions below. Do not do any rounding.
(a) Find the amount owed at the end of 1 year.
si
(b) Find the amount owed at the end of 2 years.
Answer:
9040
10215.20
Step-by-step explanation:
compound interest that compounds yearly works as follows
PV(1+i)^n
just plug in the numbers
8000(1.13)^1= 9040
8000(1.13)^2=10215.20
pls help me on this........
Answer: M is the coefficient
Step-by-step explanation:
Brandi is the star of her school's volleyball team. In the first game of the season she had 9 "kills". Then she had the
same number of kills in each of the next 4 games. She had 49 kills in the five games. How many did she get per game
in the the last 4 games?
write and solve an equation
Answer: 36
Step-by-step explanation:
I'm not sure if this is 100% right this question was kinda messing with my brain , but if it's like asking how much she had in the 4 games all you had to do was add 9+9+9+9 or to make it easier you can just multiply 9 times 4 but I hope this is right.
please help on this one.
Answer:
it's A
Step-by-step explanation:
look at the bolded line, it's after 4.4 which would mean z> 4.4
Answer:
A
Step-by-step explanation:
so we have a less than sign, which immediately tells us this going to be going left as 4.4 is greater. and obviously since the number is 4.4, the graph will have targeted that number. Hope this helps!
Please help ASAP really need this
Answer:
[tex]21.79 + c \leq 25[/tex]
Joshua can spend up to 3.21 on a card.
Step-by-step explanation:
[tex]21.79 + c \leq 25[/tex] is the correct equation because Joshua is spending 21.79 on flowers, a certain amount on the card, and the maximum he can spend is 25. That is why you use the less than or equal to sign.
To solve, first subtract 21.79 from both sides to get: [tex]c \leq 3.21[/tex]. This means that Joshua can spend up to 3.21 on a card.
Hope it helps!
Select the prime number.
30(A)
31(B)
32(C)
33(D)
Answer:
31 as it has only 2 factors which is 1 and 31
Answer:
B
Step-by-step explanation:
When paying for a restaurant order, a customer's total for food was $30.00. What is a 18% tip for that total?
Answer:When paying for a restaurant order, a customer's total for food was $30.00. What is a 18% tip for that total? I WILL GIVE BRAINLEIST PLEASE
Step-by-step explanation:
The answer is 5.40 and also like they said you can round if you need too
6/q= k/27
what is q?
what is k?
Which expression is equivalent to 3x + 3 x + 3x
3x3
9x
9x3
27x
Barbara has a part-time lawn-mowing job. The table below shows the amount of money Barbara earned for different numbers of hours of work:
Barbara's Earnings from Lawn Mowing
Number of Hours Worked Money Earned (dollars)
5 40
6 48
8
56
Part A: What are the missing numbers in the table? Show your work.
Part B: Barbara also works part time at a theme park. The ratio of the number of hours Barbara works at the park to the money she earns in dollars is 1:9. Create a table to show the money earned by Barbara for 5, 6, and 8 hours of work at the theme park.
Part C: How many more dollars does Barbara earn working at the theme park for 5 hours than mowing lawns for 5 hours? Show your work.
Answer:
Part A: 5-40
6-48
8-64
7-56
Part b:
1-9
5-45
6-54
8-72
Part c:
Theme park
5-45
Mowing lawns
5-40
$5
Step-by-step explanation:
Part A: 5x8=40
6x8=48
8x8=64
56/7=8
Part C: Every 5 hours working at the theme park she earns 45 dollars, when mowing lawns she earns 40 dollars 45-40 equal $5 extra dollars at the theme park.