Determine the circumference of a circle with a radius of 4 units.

Your school’s band decides to sell cookie dough kits to raise money for a spring field trip. There is a Family Times Cookie Doug

nikitadnepr [17]

Answer:

Step-by-step explanation:

let the Cookie Dough kit be x

and Baker’s Delight kit be y

cost of Cookie Dough kit= $7

cost of Baker’s Delight= $15

so

x+y=220------------1

7x+15y=2100------2

solve for x and y we have

multiply eqn 1 by 7 and subtract

7x+7y=1540---------3

- 7x+15y=2100-------2

0x-8y=-560

8y=560

divide both sides by 8 we have

y=560/8

y=70

put y=70 in eqn 1 we have

x+70=220

x=220-70

x=150

x=220-70

x=150

A. How many of each type of kit should your band purchase to raise the most money

Cookie Dough kit= 150

Baker’s Delight= 70

B. What is the most money that your band can raise?

Cookie Dough kit profit= selling price-cost price= 12-7= $5

Baker’s Delight profit= selling price-cost price= 25-15= $10

Amount made for Cookie Dough = 150*5=$750

Amount made for Baker’s Delight = 70*10=$700

total= 750+700= $1450

3 0

3 years ago

I cant get this. its really hard. skskskskssksksksksksskks help

TEA [102]

Answer:

32

Step-by-step explanation:

12+13=25, 25+1=26, 26+6=32

7 0

3 years ago

Can someone help me with this question?

belka [17]

Answer:

The required probability is 0.0155.

Step-by-step explanation:

We are given that the one-year survival rate for pancreatic cancer is 20%.

Of 12 people diagnosed with pancreatic cancer at one hospital, 6 survived one year.

The above situation can be represented through binomial distribution;

$P(X=r) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r} ; x = 0,1,2,3,......$

where, n = number of trials (samples) taken = 12 people

r = number of success = 6 survived

p = probability of success which in our question is probability of

one-year survival rate for pancreatic cancer, i.e; p = 20%

Let X = Number of people survived one year

So, X ~ Binom(n = 12 , p = 0.20)

Now, the probability that 6 survived one year is given by = P(X = 6)

P(X = 6) = $\binom{12}{6} \times 0.20^{6} \times (1-0.20)^{12-6}$

= $924 \times 0.20^{6} \times 0.80^{6}$

= 0.0155

5 0

4 years ago

How do you find a angel when you know the sides?

alina1380 [7]

Answer:

Lets say its a right angle : we know that it is 90 degrees

Since triangles are congruent to each triangle, each triangle has half as many degrees, namely 180. So this is true for any right triangle.

3 0

3 years ago

Read 2 more answers

The ages Edna, and Elsa are consecutive integers. The sum of their ages is 114. What are their ages?

OLEGan [10]

Answer:

Edna = 56.5

Elsa = 57.5

Step-by-step explanation:

Represent Edna age with x; Elsa age will be x + 1

So,

$x + x + 1 = 114$

$2x + 1 = 114$

Make 2x the subject

$2x = 114 - 1$

$2x = 113$

Solve for x

$x = 113/2$

$x = 56.5$

Elsa age is calculated as thus;

$Elsa = x + 1$

$Elsa = 56.5 + 1$

$Elsa = 57.5$

3 0

3 years ago