Least to greatest -4.3, -82.5, -41 4/5, -13 1/8

A total of d dollars was donated to 4 charities. Each charity received $375. Which equation can be solved to find the total amou

lidiya [134]

Answer:

If each charity has received $375 and there is 4 charities, the equation should look like this...

$375 x 4 = d

If you are looking how much was donated all together, the answer is:

$1500 dollars in total was donated.

6 0

2 years ago

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. David invested $220

S_A_V [24]

Answer:

The answer is 23 years.

Step-by-step explanation:

We will use the formula :

$A=P(1+r)^{t}$

Here P = 220

r = 3%

A = 400

Putting these values in the formula we get,

$400=200(1+0.03)^{t}$

$2=1.03^{t}$

Taking log on both sides,

ln(1.03)t=ln 2

$t=\frac{ln(2)}{ln(1.03)}$

t=23.44 or rounding to nearest, t=23 years

The graph of the function can be shown as below.

3 0

2 years ago

Read 2 more answers

"Consider the probability distribution of X, where X is the number of job applications completed by a college senior through the

Citrus2011 [14]

Answer:

Option b

Step-by-step explanation:

Given that the probability distribution of X, where X is the number of job applications completed by a college senior through the school’s career center.

Expected observed Diff

x p(x) p(x)*1000

0 0.002 2

1 0.011 11 14 -3

2 0.115 115 15 100

3 0.123 123 130 -7

4 0.144 144

5 0.189 189

6 0.238 238

7 0.178 178

1 1000

We find that there is a large difference in 2 job application

Hence option b is right.

4 0

1 year ago

Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean len

Marina86 [1]

Answer:

Step-by-step explanation:

Hello!

You need to construct a 95% CI for the population mean of the length of engineering conferences.

The variable has a normal distribution.

The information given is:

n= 84

x[bar]= 3.94

δ= 1.28

The formula for the Confidence interval is:

x[bar]± $Z_{1-\alpha/2}$ *(δ/n)

Lower bound(Lb): 3.698

Upper bound(Ub): 4.182

Error bound: (Ub - Lb)/2 = (4.182-3.698)/2 = 0.242

I hope it helps!

6 0

2 years ago

An investment of $500 increases at a rate of 12.5% per year. What is the value of the investment after 30 years? Round to the ne

NemiM [27]

Here's the equation:
0.125(500) + 500
But because it is 30 years:
30(0.125(500)) + 500
3.75(500) + 500
We can make it simpler:
4.75(500)
2375
You will have $2375

7 0

2 years ago