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Bond [772]
3 years ago
11

ACT scores have a mean of 21.5 and 26 percent of the scores are above 24. The scores have a distribution that is approximately n

ormal. Find the
standard deviation. Round your answer to the nearest tenth, if necessary.
Mathematics
1 answer:
lutik1710 [3]3 years ago
7 0

Answer:

5

Step-by-step explanation:

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Find the area of each triangle.<br> 1.) Show your work.
WARRIOR [948]

Answer:

24

Step-by-step explanation:

The base of a triangle 6

The height of the triangle 8

The face of a triangle=(6*8)/2

(6*8)/2=24

4 0
2 years ago
PLEASE HELP 12 POINTS
stealth61 [152]
Basically subtract 59 from 709 which is 650 , halve 650 which is 325 and then add 59 to the other 325 that u have to add to the first 325 to make 650 so
709-59= 650
650\2= 325
325 + 59= 384
So 384 cheeseburgers were sold and 325 hamburgers
384+325= 709
8 0
2 years ago
I rent a gym for $150 for 30 students another time I rent the gym for $270 for 70 students I need to find a fixed rate
kirza4 [7]

Answer:

Fixed rate is $60.

Step-by-step explanation:

Let us consider per student charge be 'x'.

Let us consider fixed rate be 'b'

Given:

I rent a gym for $150 for 30 students.

So we can say that;

Total amount is equal to sum of number of students multiplied by per student charge and fixed rate.

framing in equation form we get;

30x+b=150 \ \ \ \ equation \ 1

Also Given:

another time I rent the gym for $270 for 70 students.

So we can say that;

Total amount is equal to sum of number of students multiplied by per student charge and fixed rate.

framing in equation form we get;

70x+b=270 \ \ \ \ equation \ 2

Now we will subtract equation 1 from equation 2 we get;

70x+b-(30x+b)=270-150\\\\70x+b-30x-b=120\\\\40x=120

Dividing both side by 40 we get;

\frac{40x}{40}=\frac{120}{40}\\\\x=\$3

Now we will substitute the value of x in equation 1 we get;

30x+b=150\\\\30\times3+b=150\\\\90+b=150\\\\b=150-90 =\$60

So we can say that the equation can be written as;

y =3x+60

Hence we can say that fixed rate is $60 and per student charge is $3.

3 0
3 years ago
Read 2 more answers
What is the value of (x+1) in 13(6x − 5) − x = 13 − 2(x + 1)
yKpoI14uk [10]
The answer is -2x+11 for sure is the answer
5 0
2 years ago
mm not really a question but here to check up on people who are rlly stressed rn , how are you feeling mentally? you also might
NikAS [45]
I’m ok thinks for checking up on me and I did drink water I have been stressed a lot with school lately. And yes we can be friends I would love to be study buddies. How are you? And have a nice day!
5 0
3 years ago
Read 2 more answers
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