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Svetllana [295]
3 years ago
10

Q1: Gabbi purchased a 30 lb. bag of dog food. Gabbi has 3 dogs that each eat 20 ounces of dog food per day. How many days will t

he bag of dog food last? ​(1 pound = 16 ounces)
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
3 0

Answer:

x=8

Step-by-step explanation:

First multiply 30 and 16 to find out how many ounces are in the 30 lb. bag of dog food.

30 x 16=480

Since the 3 dogs eat 20 ounces of food, we can make a equation.

3(20x)=480

20 x 3=60

60x=480

x=8

<u>Final answer</u>

8 days

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1. Mr. Jones's class collected tissue boxes. The
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420 inches of space in all equal length width and height

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3 years ago
Does this matrix have an inverse?why or why not ?
Ierofanga [76]

Answer:

C. No, because it's determinant is zero

Step-by-step explanation:

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8 0
3 years ago
You observe a portfolio for five years and determine that its average annual return is 13% and the standard deviation of its ret
horrorfan [7]

Answer:

There is a 95% probability that the portfolio would not loose more than 30% of its value.

Step-by-step explanation:

The confidence interval for proportions (<em>p</em>) is:

CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

The information provided is:

\hat p = 0.13\\\sqrt{\frac{\hat p(1-\hat p}{n}} =0.21

For 95% confidence level the critical value of <em>z</em> is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

The 95% confidence interval for average annual return is:

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The lower limit of the 95% confidence interval is -28%.

This implies that the portfolio would not loose more than 28% of its value.

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6 0
3 years ago
To make a bakery's signature chocolate muffins, a baker needs 2.5 ounces of chocolate for each muffin. how many pounds of chocol
arsen [322]
We know that

to make 1 muffin-------------> needs 2.5 ounces of chocolate
  48 muffin-----------------------> X
X=48*2.5------> x=120 ounces of chocolate

if  1 pound-------------> 16 ounces
  X------------------> 120 ounces
x=120/16-----> x=7.5 pounds

the answer is
7.5 pounds
7 0
3 years ago
Read 2 more answers
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