100 POINTS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Rachel found that the time it takes for her to make her favorite desert decreases the more times she makes its. The time is takes in minutes(M) can be modeled by: M=72-0.75n, where n is the number of times that rachel has made the desert.
A. how long will it take rachel to make her desert the fifth time?

B. after how many times will rachel be able to make her desert in 63 minutes?

C. How long will it take rachel to make her desert the 40th time? Do you think this is reasonable?

Answers

Answer 1

Answer:

A: 68.25 minutes

B: 12 times

C: 42 mins and you decide this part I actually don't know. But I think it could be reasonable, after 40 times someone should get pretty good at it.

Step-by-step explanation:

a: 72 -0.75*5 = 68.25

b: M=63=72-0.75n

subtract 72 from each side: -9 = -0.75n

divide each side by -0.75: n = 12

so 12 times

c: 72 - 0.75(40) = 42 minutes. Now this could be is reasonable, but we don't know what their desert is. But 40 times is a lot of practice.


Related Questions

Plz plz ans this with explanation

Answers

Answer:

8750

Step-by-step explanation:

Since the random sample contained 125 out of 500 people who voted for the dog park that is about 25%. since 25% of 500 is 125. If we scale that up to 25% of 3500 it would be 8750 people.

Answer:

The answer would be 8,750

Step-by-step explanation:

Out of a group of 500 from the 35,000, 125 people wanted a dog park. So find out how many groups of 500 are in 35,000. Which is 70 groups of 500. Since there's 70, you multiply 70 groups by 125

Help ill mark brainliest if its right

Answers

Answer:

1.

<1 and <8

2.

<6

3.

corresponding angles

4.

vertical angles

5.

<t and <x

May someone please help me??

Answers

7.5, 25, and 14.1

I believe

Answer:

1: 7.5 2: 25 3: 14.2

Step-by-step explanation:

For all of these, you want to use the Pythagorean Theorem, which is a^2+b^2=c^2

1. you would have to plug in 13 for b, and 15 for c, because 15 is the hypotenuse

a^2+13^2=15^2

now, solve for a

a^2+169=225

225-169=56

a^2=56

to undo a squared, you have to take the square root of both sides

sqrt(56) is about 7.5

to check, you would have to plug in 7.5 for a

2. you would start off the same way, but this time we are solving for c

15^2+20^2=c^2

225+400=c^2

625=c^2

take the square root of 625

25 is your answer

if you want to check, plug in 25 for c

3. we are trying to find the hypotenuse again, so we are solving for c

5.1^2+13.2^2=c^2

26.01+174.24=200.25

200.25=c^2

take the square root once again

it is approximately 14.2

if you want to check, plug in 14.2 for c

have a great day!

(95+78+89+98)÷4=90 written in a inequality equation

Answers

Answer:

90 ≥ (95+78+89+98) ÷ 4

Step-by-step explanation:

It shows that to get 90, it has to be greater than or equal to (95+78+89+98) ÷ 4

one soccer team played 45 games throughout their entire season if this soccer team won 35 of those games than what percentage of their games did they win?

Answers

they won 77% because you do 35/45 and get .777
I think the answer is 77%

Please help me if you can thank you. For question A the answer is 5000 brochures. My question is how did they get that answer?

pls NO links or spam comments it’s really annoying

Answers

Answer:

By writing an equation 0.50x + 900 = 0.38x + 1500 and solving (you can also write a system of equations)

Step-by-step explanation:

The equation for company A's price is y = 0.50x + 900 ($0.50 per brochure plus flat fee of $900)

The equation for company B's price is y = 0.38x + 900 ($0.38 per brochure plus flat fee of $1500)

The goal is for the cost (y) to be the same so these equations would both have to be equal to each other. Once solving for x you will get 5000 brochures.

ALSO

you realize its bots making the links right?

plz help i dont understand

Answers

Answer:

You just multiply the 3 values

Step-by-step explanation:

3/2 times 3/2 times 3/2 is 27/8

pls mark brainliest I need it to move up a rank

U have to multiply all three fractions

Suppose that there are 20 numbers in a data set and that they are all different. How many of the values in this data set are between the first quartile and the median?

Answers

Answer:

4

Step-by-step explanation:

Since the first quartile is at 25%, 25% of 20 is 5. The median is the 50% mark of the set, and 50% of 20 is 10. So, there are 4 numbers between the 5th data point and the 10th, which are the 6th,7th,8th, and 9th data points.

The answer for this one is 4

Natalie plays a video game in which she tries to catch three different prizes
as they fall. Identify the sample space (the list of possible outcomes) for her
results
S = success, F = fail
The notation SFS means she caught the first prize, missed the second prize,
and caught the third prize,
A. (SSS, SFS, FFF).
B. {SSSS, SFSF FFFF}
C. {SS, FF SE FS}
D. (SSS, SSF, SFS, SFF, FSS, FSF FFS, FFF}

Answers

Answer:

D

Step-by-step explanation:

I hope this helps :)

Answer:

D.

Step-by-step explanation:

Who can solve this? Ima give brainliest to the best answer

Answers

Answer:

32 possible outcomes

Step-by-step explanation:

one coin has 2 possible outcomes, heads or tails, as do each of the others coins. So the number of outcomes is 2^5=32

(1) HTTTT

(2)THTTT

(3)TTHTT

(4)TTTHT

(5)TTTTH

A spinner is divided into four equal sections. Which situation can be represented using this simulation?

A.
picking a red rose from a vase with two red, two pink, two yellow, and two white roses
B.
picking a peach from a bowl with two peaches, three apples, and four mangoes
C.
picking a shoelace from a bag with six shoelaces and four ribbons
D.
picking a black puppy from a litter of three brown and two black puppies

Answers

Answer:

A. picking a red rose from a vase with two red, two pink, two yellow, and two white roses

Step-by-step explanation:

please mark this answer as brainlest

The table shows the different birds Kevin has received for fixing the sprinklers and trimming the bushes and trees. What it the average bird?

Answers

D

You will add all so,

$(180.47+160.16+210.50+260.00+200.37)=$1011.5

You then divide by total number of bids(5)

so,$1011.5÷5=$202.30

Pls help me ASAP!!! Tickets for a concert cost $7.50 for students and $15 for adults. 150 ticket are sold, and $1612.50 is collected. How many student tickets were sold? How many adult tickets?

Answers

Answer: 85 student tickets, 65 adult tickets.
Let's say the # of students is x and the # of adults is y. The two equations we get are 7.50x + 15y = 1612.50 and x + y = 150
x = 150 - y
7.5(150-y) + 15y = 1612.5
1125-7.5y+15y=1612.5
7.5y=487.5
y=65

x=150-65
x=85

Hope this helps!

A data set has a mean of 7, a median of 5, and a mode of 8. Which of the numbers (7, 5, or 8) must be in the data set?


If possible, please explain in words, thank you. :)

Answers

5 must be in the data set: median means it’s the middle number in the set. so if the data was [2,3,5,6,7], 5 is the median.
8 has to be in the data set because 8 had to be there to be a mode were you can have 5 as the median if the set was like this 234678 because 4&6 both are in the middle so you have to do the middle of that which is 5 so that’s the median without having the number 5.

The question is in the picture!

Answers

i think the answer is wanting us to write a equation. perimeter is where you add you on the outside so in this case it would be, x + x + x

Answer:

82 or 5.3

Step-by-step explanation:

As you know a whole triangle is 180° so if you subtract 16 from 180 you get 164 so then you just divide it by three and you get 54.3.

Or if that is wrong try dividing 16 into three and you get 5.3.

I'm really sorry if neither one of these are right!

Need help with this question

Answers

B) 4/9 is correct

Mark with crown!
There is 4 even numbers and 9 numbers in total, would you divide 9 by 4 get 0.44 repeating and turn that into a fraction

PLZZZZZ HELP and plz no Links

Answers

Answer:

5 1/7

Step-by-step explanation:

First, make both numbers into a fraction

9/1 x 4/7

multiply top and bottom

36/7

simplyfy- 7 goes into 36 five times with 1 left over.

5 1/7

The third one would be correct

EXPERT HELP I'LL GIVE BRAINLIEST IF YOU EXPLAIN THE ANSWER

Answers

Answer:

bro it's C obviously because the questoun ask about the outcome having '' more than one male" A,B, and D have two females and a male so it has to be C

Step-by-step explanation:

The answer is c. MFM

BRAINLIEST PLZ JACOB HELP MEE

Answers

Answer:

Step-by-step explanation:

red is 20%

yellow is 5

green is 55% and 25

Can sum1 give me the right answer pls like seriously

Answers

The person above me is incorrect.
ANSWER: -77 5/8

A random sample of dogs at different animal shelters in a city shows that 12 of the 65 dogs are puppies. The city's animal shelters collectively house 1,690 dogs each year. About how many dogs in all of the city's animal shelters are puppies?

Answers

65 because you add then subtract so the you go back to 65
1690 divided by 65 = 26
26 x 12 = 312

The second hand on a clock is 8 cm long.

What is the distance the tip of the second travels in 10 minutes?

Give correct answer I will give you Branist

Answers

Answer:8

Step-by-step explanationesporq eñ relokrr co:

Answer:

This is just a guess. I think .4 feet.

It says it all on the added attachment.

Answers

to find the surface area of a figure, you find the area of each side and add it together
so the triangular shape would be
.5(6) * 8 = 24
.5(14) * 8 = 56
14 * 12 = 168
then you add 168 + 56 + 56 + 24 + 24 = 328
the surface area of the triangular shape is 328

the surface area of the rectangular prism
29 * 21 = 609
35 * 29 = 1015
21 * 35 = 735
735 + 735 + 1015 + 1015 + 609 + 609 = 3808
therefor the rectangular prism has a greatest surface area than the triangular shape because 3808 is greater than 328

Erin made a mistake when writing a transformation rule to translate points two units up and four units to the left. Transformation Rule: (x, y) (x + 2, y— 4) a. What is wrong with Erin's transformation rule? b. What is the correct transformation rule?

Pls just answer it for me, i have been having a horrible day like so bad, been working on this for like hours and hours. My mind might explode.

Answers

a. Erin basically put 2 units to the right and 4 units down. Since x would be going left or right and y up or down, Erin did not write the rule correctly.

b. The correct transformation rule would be (x, y) (x - 4, y + 2). When going to the left, you would be subtracting and going up would be adding, hope this helped!

The correct transformation rule to translate points two units up and four units to the left is,

(x, y) → (x - 4, y + 2)

We have to given that,

Erin made a mistake when writing a transformation rule to translate points two units up and four units to the left.

Here, Transformation Rule:

(x, y) → (x + 2, y - 4)

Since, We know that,

The correct transformation rule to translate points two units up and four units to the left is,

(x, y) → (x - 4, y + 2)

As, for 2 units up we add 2 in y - coordinate and 4 units left we subtract 4 in x - coordinates.

Learn more about the transformation visit:

https://brainly.com/question/30097107

#SPJ6

A school district created the following two-way frequency table to show the participation of their students in extracurricular activities.

Extracurricular Participation

Band Athletics Drama
Club Chorus Debate
Team Total
River High School 131 174 78 58 53 494
Bay High School 116 159 38 68 53 434
Total 247 333 116 126 106 928

What percentage of Bay High School extracurricular participants compete in athletics?
A.
35.88%

Answers

Answer:

Step-by-step explanation:

I can not set up a 2 way table online but what they want is a collom of the information neatly laid out...

With the 9th graders in one collom and the 10th graders in the other

like this

                          9th grader   10th grader

# of students          32                      40

# of participated    32                      18

Draw this out with lines and it will be correct.

I hope this helps GOOD LUCK...this is tough math for a middle schooler.

Ahmad's mom prepares a plate with 5 peaches and 4 apples for the 6 students in his study group. What is the ratio of fruit to students?​

Answers

9:6 is the ratio of fruits to students
Add 5 + 4 = 9; there are 9 pieces of fruit in all. There are 6 students. The ratio of fruit to students is 9 to 6. The ratio can also be written as 9:6 and 9/6.

You don't have to explain

Answers

DONT BE SO NEGATIVE..............

need this for work plz help me

Answers

5. 38.6 - 2.1 = 36.5. Michelle scuba dives 36.5 meters in 6.25 minutes. 36.5/6.25 = 5.84 meters. The average change in Michelle's position each minute is 5.84 meters.

6. 2/3 of 6 = 4. Bob would use 4 cups of sugar to make 2/3 of a batch of cookies.

1. Consider the surface area of the following pyramid.

Calculate the total surface area of the pyramid. PLZZZZ SHOW YOURE WORK!

Answers

Answer:

94.8

Step-by-step explanation:

you add all the fours an 3 an then what ever it adds up to make that number mutlipe 2.24 yw

Gotcha just give me a sec
T.S.A of pyramid = 12pl+B
P stands for perimeter of base l stands for slant height and B stands for area of base now u can put in values by finding each of the above

and this is the last one

Answers

Answer:

330.5 and 42

Step-by-step explanation:

NUMBER 1

7 * 24 = 168

12.5 * 13 = 162.5

= 330.5

NUMBER 2

25+ 18 = 42

The answer is 330.5 and 42 !!
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