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Elis [28]
3 years ago
9

The price of gold has a mean of $1243 per ounce. The price per ounce has a normal distribution, with a standard deviation of $21

. What range of values represents the middle 95% for the price per ounce of gold?
(1222, 1264)

(1201, 1285)

(1222, 1306)

(1201, 1265)

(1180, 1306)
Mathematics
1 answer:
igomit [66]3 years ago
7 0
Sorry idk I need points :(
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Allison is making fruit drinks for her friends.
Svetllana [295]

The number of cups of fruit Allison will need is = 4 ⅘ cups of fruits

<h3>Calculation of total quantity of fruits</h3>

The quantity of strawberries needed for each fruit drink= 3/5 cup

The quantity of blueberries needed for each fruit drink = 1/5 cup

Therefore the total quantity of fruits needed for each drink = 3/5 + 1/5

= 4/5

If 4/5 = 1 fruit drink

X = 6 fruit drinks

Make X the subject of formula,

X = 4/5 × 6

X = 24/5

X= 4 ⅘

Therefore, the number of cups of fruit Allison will need is = 4 ⅘ cups of fruits

Learn more about calculation of total quantity here:

brainly.com/question/13864606

7 0
2 years ago
4. A video rental store rents movies at $3.95 for the first night, plus $1.25 for each additional night. When you return your mo
Umnica [9.8K]

Answer:

3 nights

Step-by-step explanation:

Set up an equation that represents the problem:

y = 1.25x + 3.95

Where y is the total cost and x is the number of additional nights you rent the movie

Substitute:

7.70 = 1.25x + 3.95

Subtract 3.95 on both sides:

7.70 = 1.25x + 3.95

-3.95              -3.95

3.75 = 1.25x

Divide by 1.25 on both sides:

3.75 = 1.25x

/1.25    /1.25

3 = x

Therefore, you kept the movie for 3 additional nights.

5 0
3 years ago
Read 2 more answers
How much change will you get back if you bought 3 $0.99 chocolate bars and paid with $5 bill
Molodets [167]
You will get $2.03 back in change 
4 0
3 years ago
Factorise 14e-16<br> Please explain
rosijanka [135]

The expression 14e - 16 is an algebraic expression, and the factored expression is 2(7e - 8)

<h3>How to factor the expression 14e - 16?</h3>

The expression is given as:

14e - 16

Express both terms as a product of 2

14e - 16 = 2 * 7e - 2 * 8

Factor out 2 in the expression

14e - 16 = 2 * (7e - 8)

Remove the product sign

14e - 16 = 2(7e - 8)

Hence, the factored expression of 14e - 16 is 2(7e - 8)

Read more about factored expressions at:

brainly.com/question/723406

5 0
2 years ago
WILL GIVE BRAINLIEST!
yKpoI14uk [10]

Answer:

50 A and 50 B

Step-by-step explanation:

A》20

B》10

A + B》100 (for pants)

A + 3B》200 (for shirts)

A = 20

A + 3B = 200

3B = 180

B = 60

(20,60)

B = 10

A + B = 100

A = 90

(90,10)

A + B = 100

A = 100 - B

A + 3B = 200

100 - B + 3B = 200

2B = 100

B = 50

A = 100 - 50 = 50

(50,50)

Revenue:

30A + 50B

(20,10): 30(20) + 50(20)

= 1,100

(20, 60): 30(20) + 50(60)

= 3,600

(90,10): 30(90) + 50(10)

= 3,200

(50,50): 30(50) + 50(50)

= 4,000

8 0
3 years ago
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