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3 years ago

5. Mrs. Perkins hosts a birthday party for her son and 7 guests. She orders 2 cookies and a

Mathematics

2 answers:

Katarina [22]3 years ago

8 0

Answer:

$1.375

Step-by-step explanation:

7guests + 1son = 8children

8 (children) x 2.75 (dollars-per-cupcake) = 22

46 (total cost) - 22 (dollars spend on cupcakes) = 24

24 (left) / 16 (number of cookies needed (each child gets two)) = 1.375

Ivenika [448]3 years ago

7 0

Answer:

Below.

Step-by-step explanation:

In total there are 8 kids. Each cupcake is 2.75 so 8x2.75= 22 now the total is 46.00 So? 46-22 = 24. 24 divided by 2 = 12.

I Divided by 12 because they said cost of each individual cookie.

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a taxi cab in myrtle beach charges $2 per mile and $1 for every person. if a taxi cab ride for two people cost $12, how far did

Fiesta28 [93]

Answer:

5 miles

Step-by-step explanation:

If there is 2 people and it costs 12 dollars you will first subtract 2 dolars for each person leaving you with 10 dollars. After that you will divide 10 by 2 for the miles because each mile costs 2 bucks. that will get you to 5 miles

4 0

3 years ago

Read 2 more answers

If the acceleration of an object is given by dv/dt = −2v, Find the position function s(t) if v(0) = 7 and s(0) = 0.

kirill [66]

Answer:

Step-by-step explanation:

Given that acceleration of an object is

$\frac{dv}{dt} =-2v\\\frac{dv}{v} =-2dt\\ln v = -2t+C\\$

is the solution to the differential equation

Since v(0) =7

we get ln 7 = C

Hence $lnv = -2t+ln 7\\v=7e^{-2t}$

since velocity is rate of change of distance s we have

$v=\frac{ds}{dt} =7e^{-2t}\\s= [tex]s(t) =\frac{-7}{2} (e^{-2t})+C)[$

substitute t=0 and s=0

$C=7/2$

So solution for distance is

$s(t) =\frac{-7}{2} (e^{-2t}-1)$

4 0

3 years ago

The distribution of scores on a recent test closely followed a Normal Distribution with a mean of 22 points and a standard devia

maksim [4K]

6.68% of the students scored at least 19 points on this test while the 85 percentile has a test score of 24.08 points

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma} \\\\where\ \mu=mean.\sigma=standard\ deviation, x=raw\ score\\\\Given\ that\ mean(\mu)=22,standard \ deviation (\sigma)=2\\\\For\ x>19:\\\\z=\frac{22-19}{2}=1.5$

P(x > 19) = P(z > 1.5) = 1 - P(z < 1.5) = 1 - 0.9332 = 0.0668

6.68% of the students scored at least 19 points on this test

b) 85 percentile corresponds to a z score of 1.04

$z=\frac{x-\mu}{\sigma}\\\\1.04 =\frac{x-22}{2} \\\\2.08=x-22\\\\x=24.08$

The 85 percentile has a test score of 24.08

Find out more at: brainly.com/question/25012216

7 0

3 years ago

Plz find the volume of this figure i really need help

DiKsa [7]

Answer:

to find volume you have to multiply l x w x h

Step-by-step explanation:

just put the l, w, and height in the comment section so i can give you the answer

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2 years ago

What is the smallest of three consecutive positive integers if the product of the smaller two integers is 10 more than 4 times t

r-ruslan [8.4K]

The smallest is 6
Three consecutive integers
X. Smallest 6
X+1. 7
X+2. Largest 8

X(X+1)= 4(X+2)+10
X^2+X= 4x+8+10
X^2+X-4x-18=0
X^2-3x-18=0

( X+3)(X-6)
X=-3. X=6
Don't use the negative

Check 6(7)= 4(8)+10
42=42

8 0

3 years ago