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3 years ago

15

The average SAT score for freshmen entering a particular university is 1100 with a standard deviation of 95. What is the probabi

lity that the mean SAT score for a random sample of 50 of these freshmen will be anywhere from 1075 to 1110?

1 answer:

meriva3 years ago

3 0

Answer:

Babalpufa

Step-by-step explanation:

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When renting a limo for prom, the number of people varies inversely with the cost per person. Originally there were 12 people an

pashok25 [27]

The answer would be $10.

8 0

3 years ago

Jack and Julio each improved their yards by planting daylilies and geraniums. They bought their supplies from the same store.

o-na [289]

Cost of one daylily is $2 and cost of one geranium is $4.

Step-by-step explanation:

Let,

Cost of one daylily = x

Cost of one geranium = y

According to given statement;

x+5y=22 Eqn 1

13x+y=30 Eqn 2

From Eqn 1;

x=22 - 5y

Putting this value of x in Eqn 2;

$13(22-5y)+y=30\\286-65y+y=30\\-64y=30-286\\-64y=-256$

Dividing both sides by -64

$\frac{-64y}{-64}=\frac{-256}{-64}\\y=4$

Putting y=4 in Eqn 1

$x+5(4)=22\\x+20=22\\x=22-20\\x=2$

Cost of one daylily is $2 and cost of one geranium is $4.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

4 0

3 years ago

What is the measure of a third angle of this triangle

8_murik_8 [283]

All triangles add up to 180 so it’s 20°

7 0

2 years ago

What is the value of ?<br> 2<br> 3 <br> 4<br> 5

Fed [463]

Answer:

idk what your asking but assuming u mean multiplying the answer is 120

Step-by-step explanation:

8 0

3 years ago

I will give brainliest<br> -50-c=5c-2<br> Show work pleasee

Lilit [14]

Answer:

- 8

Step-by-step explanation:

Step 1:

- 50 - c = 5c - 2 Equation

Step 2:

- 50 = 6c - 2 Add c on both sides

Step 3:

- 48 = 6c Add 2 on both sides

Step 4:

- 48 ÷ 6 Divide

Answer:

c = - 8

Hope This Helps :)

6 0

3 years ago

Read 2 more answers