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kvasek [131]
3 years ago
13

Sam's recipe calls for 2 1/2 cups of flour. Pete's recipe calls for 2 1/4 times the amount of flour in Sam's recipe.

Mathematics
2 answers:
lys-0071 [83]3 years ago
5 0
The answer is A. Sam's recipe uses less flour than Pete's becuase Pete is using 2 1/4 multiplied by 2 1/2 (Sam's) so it will be more than Sam's.

andreev551 [17]3 years ago
3 0
A) the amount of petes recipe is equal to 2.5 times 2.25 and every time you multiply you get a bigger number
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Solve each expression 2n^2+3n-2
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Simple, solve straight across, its either 4n or 2n
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Sun, a kayaker, paddles 8 miles upstream (against the current) in 2 hours. Returning to her original location, she paddles downs
Virty [35]

Answer: a=8 and b=1


Step-by-step explanation:

If x represents the paddling speed, and y represents the speed of the current.

Then Relative speed in upstream =x-y

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When she paddles upstream then distance covered by her=speed\times\ time

⇒8=(x-y)2 or 2(x-y)=8

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When she paddles downstream then distance covered by her=speed\times\ time

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3 years ago
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Maurinko [17]

Answer:

P(X is greater than 30) = 0.06

Step-by-step explanation:

Given that:

Sample proportion (p) = 0.5

Sample size = 30

The Binomial can be approximated to normal with:

\mu = np = 50 \times 0.5 \\ \\ \mu= 25

\sigma = \sqrt{np(1-p) } \\ \\  \sigma = \sqrt{50 \times (0.5)(1-0.5) } \\ \\ \sigma = 3.536

To find:

P(X> 30)

So far we are approximating a discrete Binomial distribution using the continuous normal distribution. 30 lies between 29.5 and 30.5

Normal distribution:

x = 30.5, \mu = 25, \sigma = 3.536

Using the z test statistics;

z = \dfrac{x - \mu}{\sigma}

z = \dfrac{30.5 - 25}{3.536}

z = \dfrac{5.5}{3.536}

z = 1.555

The p-value for P(X>30) = P(Z > 1.555)

The p-value for P(X>30) = 1 - P (Z< 1.555)

From the z tables;

P(X> 30) = 1 - 0.9400

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P(X is greater than 30) = 0.06

7 0
3 years ago
Find the slope of the line passing through the points (-7,-7) and (4,-7)
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Answer:

it it negative

Step-by-step explanation:

6 0
3 years ago
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Alana and Petra go to a used book sale, where every book is the same price. Alana buys 4 books and Petra buys 2 books. They run
galben [10]

Answer:

each book is 2 dollars

Step-by-step explanation:

x=price per book

angus=16x-15

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2=x

tadaa!!

your very welcome

3 0
2 years ago
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