Answer: 165
Step-by-step explanation:
1/4=5/20=25/100
1/5=4/20=20/100
25+20=55%=0.55
0.55 * 300= 165
I'm confused on this
The water level at a pier is modeled by the function y= 2.5 cos(2pi/12.5) +12, where y represents the water level measured in meters, and x represents the number of hours since the last high tide. After how many hours is the water first expected to reach a depth of 12 meters? Round to the nearest tenth of an hour.
ANSWER CHOICES
1.6 hours
3.1 hours
14.4 hours
19.6 hours
Answer: 3.1 hours
Step-by-step explanation: Just took the quiz on edg.
Water will reach a depth of 12 meters after 3.1 hours approximately.
Function representing the level of water by 'y' and number of hours by 'x' is,
[tex]y=2.5\text{cos}(\frac{2\pi x}{12.5})+12[/tex]For y = 12 meters, (Substitute the value of y)
[tex]12=2.5\text{cos}(\frac{2\pi x}{12.5})+12[/tex]
[tex]12-12=2.5\text{cos}(\frac{2\pi x}{12.5})[/tex]
[tex]\text{cos}(\frac{2\pi x}{12.5})=0[/tex]
[tex]\frac{2\pi x}{12.5}=\frac{\pi }{2}[/tex] (Since, [tex]\text{cos}(\frac{\pi }{2})=0[/tex])
[tex]\frac{\pi x}{12.5}=\frac{\pi }{4}[/tex]
[tex]x=\frac{\pi }{4}\times \frac{12.5}{\pi}[/tex]
[tex]x=3.125[/tex]
[tex]x\approx3.1[/tex] hours
Therefore, water will reach a depth of 12 meters after 3.1 hours approximately.
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1,4,5,9,14,23 what a situation
Answer:
If you are asking for the median, it's 9.
explanation:
Find the middle number and round it up. That is how to find median.
Find the product 3 2/5 and 5/8. Express answer in simplest form
Answer:
2 1/8
Step-by-step explanation:
Hope this helps!!
Answer: 2.125
Step-by-step explanation: 3.4 x 5/8 = 2.125
Assume that when adults with smartphones are randomly selected,41 % use them in meetings or classes. If 5 adult smartphone users are randomly selected, find the probability that exactly 2 of them use their smartphones in meetings or classes.
Answer:
0.345
Step-by-step explanation:
Use binomial probability:
P = nCr pʳ qⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
p is the probability of success,
and q is the probability of failure (1−p).
n = 5, r = 2, p = 0.41, and q = 0.59.
P = ₅C₂ (0.41)² (0.59)⁵⁻²
P = 0.345
need help with geometry problem
Answer:
D, B, C
Step-by-step explanation:
Because even though this is not a right triangle, it's super close. Therefore we can call side DC the SL, meaning angle C is larger. Angle D is largest, then B, then C.
Determine whether the given number is a solution of the given equation.
Is 9 a solution of x-11 = - 2?
Answer:
Substituting x with 9
9-11
= -2
Yes, it is a solution.
help please!
The graph shows two accounts with the same principal and annual interest rate. Use the graph to estimate the answer to each question.
About how much more compound interest than simple interest is earned after 35 years? Remember to show your work.
About how much more compound interest than simple interest is earned after 45 years?
Remember to show your work.
After 35 years the simple interest is $600 while the compound interest is $860, while after 45 years the simple interest is $700 while the compound interest is $1160
What is interest?
Interest is the amount of money made from investing a particular amount of time over a certain period of time. Interest can either be simple or compound.
From the graph given below:
After 35 years the simple interest is $600 while the compound interest is $860, while after 45 years the simple interest is $700 while the compound interest is $1160
Find out more on interest at: https://brainly.com/question/25545513
What is the volume I need some help
your answer is 64cm
thats it
Solve 6x<90. Graph the solution
Answer:
image is attached (shaded area is where x could be)
Step-by-step explanation:
[tex]6x < 90[/tex]
divide both sides by 6
[tex]x < 15[/tex]
this means x is strictly less than 15
3 people share 7 brownies how many brownies should each person get? Pls show your work
=> 3 people share 7 brownies
=> 7 ÷ 3
=> 2.3333333
=> 2.3
Therefore, each person takes 2 1/3
Answer:
2 ⅓
Step-by-step explanation:
division is the same as a fraction
the dividend is the numerator and the divisor is the denominator
7÷3 is the same as 7/3
change 7/3 into a mixed number which is 2 ⅓
4pounds of tomatoes for 6 dollars what was the cost per pound of tomatoes
Answer:
$1.50
Step-by-step explanation:
Answer:
x = $1.50; The cost per pound of tomatoes is $1.50
Step-by-step explanation:
We can the cross method.
4 pounds = $6
1 pound = x
4x = 6*1
4x=6
4x/4 = 6/4
x= 1 1/2 or $1.50
x = $1.50
The cost per pound of tomatoes is $1.50
Hope this helps!
If x = 5 and y = 7, evaluate the following expression:
100 – 3(3y - 4x)
100 - 3(3 x 7 - 4 x 5)
Simplify
97(21 - 20)
Simplify
97(1)
Now, multiply.
97 x 1 = 97
So the answer to the equation above, is 97.
Find the volume of the triangular prism?
Answer:
i not understand this question plase ask full question
consider the line y=7-7x what is the slope of a line parallel to this line
Answer:
Step-by-step explanation:
Slope of the given line = -7
parallel: slope = -7
perpendiculr: slope = -1/(-7) = 1/7
Frederick, Josiah, and Shawnda each had 2 rolls of raffle tickets with 12 tickets in each roll.
Josiah hands out half of his tickets and Shawnda hands out one fourth of her tickets.
How many tickets do they have left altogether?
Answer:
they all have 52 left altogether
Step-by-step explanation:
they all have 2 rolls with 12 so that means they all have 24 if josiah hands out half of his tickets he would have 12 tickets left
If shawnda hands out 1 fourth of her tickets she will have 18 tickets
24 + 12 + 18 =54
pls answer this right now i need it so much i'll give you brainleist and follow you thank you so much.
6. Which of the following statements is correct? A. An algebraic equation is a mathematical sentence with an equal sign.
B. An algebraic equation is a series of mathematical operation.
C. An algebraic expression consist of one operation.
D.
An algebraic expression variable is always
letter
7. Mang Cadio when asked about his age, replies,"1 am six years older than thrice the age of my youngest child." Express his age in algebraic expression if his age now is 66.
A. 3n + 6 = 66
B. 3n - 6 = 66
C. 3n + 6n = 66
D. 3n - 6n = 66
8-Mayah is 2 years younger than her sister who is 4 years younger than their brother. Their total age together is 26 years. How old is Mayah's sister?
A. 3n+2=26
C. n=26-2
B. 3n-2=26
D. n=26+2
9.The phrase "Five less than twice a number" is equal to
A. 5-2n
B. (5-2n)
C. 2n-5
D. 2(n-5)
10. Which algebraic equation on the phrase " Twice a number decreased by six is equal to sixteen.
A. 2b-6=16 B. 16-2b-16
C. 2b-16-6
D.
2b-16= 8
11 A number increased by 5 is 12. What is the number?
A. 6
C. 8
B. 7
D. 9
12. What is c in the equation, c +18=29.
A. 9
C. 13
B. 11
D. 15
13. Solve for h, in the equation h=8.
5
A. 10
B. 25
C. 40
D.
41
14. Mang Andoy is an egg dealer. He needs to sell 1000 dozens of eggs every 2 weeks for him to meet the quota requirement. On the first week, he sold 453 dozens of eggs. On the third day of the second week, he delivered again and sold 364 dozens. How many more dozens of eggs does Mang Ambo needs to sell to meet the quota?
A. 183
C. 98
B. 120
D. 79
15. If thrice a number is increased by 11, the result is 35.
What is the number?
A. 24
C. 12
B. 18
D. 8
Answer:
6. A
7. A
8. A
9. C.
10. A.
11. B.
12. B.
13. C.
14. A.
15. D.
Step-by-step explanation:
6. An algebraic equation is a mathematical sentence with an equal sign.
7. 3n + 6 = 66
8. Let n = Mayah's sister's age
let m = Mayah's age
let b = Mayah's brother's age
m = n - 2
b = n + 4
m + b + n = 26
⇒ n - 2 + n + 4 + n = 26
⇒ 3n + 2 = 26
9. 2n - 5
10. 2b - 6 = 16
11. n + 5 = 12
⇒ n = 7
12. c + 18 = 29
⇒ c = 29 - 18 = 11
13. h = 8 · 5 = 8 × 5 = 40
14. 453 + 364 + n = 1000
⇒ n = 1000 - 453 - 364
⇒ n = 183
15. 3n + 11 = 35
⇒ 3n = 35 - 11
⇒ n = 24 ÷ 3
⇒ n = 8
Suppose a dilation of ΔUVW by scale factor of 1 4 , centered at the origin. Which new vertices are correct? A) U′(−2, −1) B) U′(−1, −2) C) V′(1, −1) D) V′(−1, 1) E) W′(−2, 2)
Answer:
you probably already have it. the answer is : A,C,E
Step-by-step explanation:
Trust me-
Jennifer had to finish 3 assignments during the week.
She completed the first assignment in 3 1/2 hours. The
second assignment took 1/2 hours lesser while the third
assignment took 2 1/2 hours more than the first. How
much time did it take her to complete the
assignments.
Answer:
6 1/2 hours
Step-by-step explanation:
3 1/2 + 1/2 + 2 1/2
4 + 2 1/2
6 1/2
First add the 3 1/2 and the 1/2 together to get 4. Then you add the 2 1/2 to the 4 to get 6 1/2. :)
Hope this helped!
Have an amazing day!!
PLEASE RATE!!
Answer: 12hrs 30mins
Step-by-step explanation: 3hrs 30mins + 3hrs + 6hrs = 12hrs 30mins
Hope that helps!
Jack has 24 game cards. He divides them between his brother, his sister, and himself in the ratio 2:1:5.
How many cards does each get?
Answer:
brother gets 6 cards
sister gets 3 cards
he gets 15 cards
Step-by-step explanation:
this can be rewritten as
2x + x + 5x = 24
combine like terms
8x = 24
divide both sides by 8
x = 24/8
x = 3
now, multiply x by each part of the ratio.
his brother = 2 * 3 = 6
his sister = 1 * 3 = 3
himself = 5 * 3 = 15
Translate verbal phrases into mathematical expressions
1. The difference of gross sales and total sales
2. The sum of two numbers of less 11
3. Three fourths of 500
Thankyouuuuu !
Answer:
see i do not know 1st so i am not answer for it
Step-by-step explanation:
2nd) let 1st number be x
and second number be y
so x+y>11 or x+y<11 or x+y=11
this three can be i am not sure about this so just verify from any other source too
3rd) the ans is 500 upon(divided) by 4=125
so 125 multiply by 3 is 375
the correct ans is 375
Which graph represents -3x+5y=-15?
Answer:
It's a straight line
Step-by-step explanation:
The line has a slope of 3/5 and a y-axis crossing of -3
There are 30 flowers 2/5 are daisies 1/6 are roses the rest are carnations may many carnations are in the vase
Answer:
14
Step-by-step explanation:
If you add 2/5 of 30 (12) to 1/6 of 30 (5) you get 16. You then subtract 30-16! I hope this helps, and have a great day!
The denominator for the improper fraction represented by the shaded area is .....
Answer:
4/3 is the fraction / the denomonator would then be 3
Step-by-step explanation:
4 shaded on the top and 3 shaded on the bottom. The numerator is on the top and the denomonator is on the bottom.
How do you graph y=-1x+4
Step-by-step explanation:
You will put the y-intercept at (0,4) and the slope will be -1
Here are some points on the line you can graph: (0,4) (1,3) (2,2) etc.
Simplify.
240−−−√
6/40−−√
10/24−−√
2/30−−√
4/15−−√
Answer:
4/15
Step-by-step explanation:
Which choice is the equation of the line that passes through the point (5, 19) and has a slope of m =12 and is written in slope-intercept form?
Answer: y = 12x - 41
Step-by-step explanation:
The choices are not given, but you can figure this out.
Slope intercept form is y = mx + b
Substitute the y and x-values into the equation to calculate b, the y-intercept.
19 = 12(5) + b
19 = 60 + b
-60 + 19 =b
-41 = b
Write the equation with y and x, include the given slope and the calculated y-intercept:
y = 12x + 41
Please help ASAP PLEASE I NEED HELP
Answer:
4/9
Step-by-step explanation:
find common denominator which is 9
1/9 + 3/9 (I change the numerator because since we multiplied the bottom you do the top)
now add
1/9 + 3/9 = 4/9
hope that helps and makes since
Answer: 4/9
Step-by-step explanation: 1/9 + 1/3(which is 3/9) = 4/9.
Amy and Zach each have 24 feet of fencing for their rectangular gardens. Amy makes her fence 6 feet long. Zach makes his fence 8 feet long. Whose garden has the greater area? How much greater?
Answer:
Amy by 4 feet
Step-by-step explanation:
Look above for explanation
jackson wants to divide a 3/4 - pound box of trail mix into small bags will hold 1/12 pound of trail mix. how many bags of trail mix can jackson fill?
Answer:
9 bags of trail mix
Step-by-step explanation: