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koban [17]
2 years ago
11

steve baked 5 1/2 batches of cookies in one and one half hours. Vondra baked 3 1/3 batches of cookies in 11/12 hour. Which baker

made cookies at a greater rate of batches per hour?
Mathematics
1 answer:
zepelin [54]2 years ago
4 0

Answer:

Step-by-step explanation:

Steve 11/2 batches / 3/2 hrs = 11/2(2/3) = 11/3 = 3 2/3 = 3 22/33 batches/hr

Vondra 10/3 batches / 11/12 hr = 10/3(12/11) = 120/33 = 3 21/33 batches/hr

Steve had a very slightly faster batch rate by only 1/33 batch/hr

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1. What is the greatest number that can be rounde<br>to the nearest thousands?​
Xelga [282]

Answer:

10000.

Step-by-step explanation:

i think.. i may be wrong.

4 0
3 years ago
in a coin jar, there are 45 nickles. the number of pennies and nickles together equal the number of dimes. there are 2 quarters
fredd [130]

Answer:

45 nickels

30 quarters

60 dimes

15 pennies

Step-by-step explanation:

Quarters:

45÷3=15

15×2=30

Dimes:

30×2=60

Pennies:

60-45=15

HOPE THIS HELPS!!!!!:)

3 0
3 years ago
The heights (in inches) and pulse rates (in beats per minute) for a sample of 40 women were measured. Using technology with the
Viktor [21]

Answer:

There is not sufficient evidence  to support the claim that there is a linear correlation between the heights and pulse rates of women

Step-by-step explanation:

The correlation coefficient between the variables h(height in inches) and pulse rates (in beats per minute) is 0.202

Sample size n=40

Level of significane alpha = 0.01

Create null and alternate hypothesis as:

H0: r=0

Ha: r not equal 0

(Two tailed test at 1% significance level)

Sample r = 0.202

r difference = 0.202

test statistic t = \frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{0.202(\sqrt{38} )}{\sqrt{0.9592} } \\=\frac{1.25}{0.9794} \\=1.271

df =n-2 =38

t critical value for 0.01 and df =38 is 2.704

Since our test statistic lies below 2.704, we accept null hypothesis

There is not sufficient evidence  to support the claim that there is a linear correlation between the heights and pulse rates of women

7 0
3 years ago
Anita sees in her nutrition book that a 7.5-ounce piece of cake has 900 calories. how many calories will she save if she takes o
Marianna [84]
\bf \begin{array}{ccll}&#10;\stackrel{cake}{oz}&calories\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;7.5&900\\&#10;2.5&x&#10;\end{array}\implies \cfrac{7.5}{2.5}=\cfrac{900}{x}\implies x=\cfrac{2.5\cdot 900}{7.5}

so, the 2.5oz cake will be "x" calories, pheeew, she'll be taking in 900 - x less calories.
8 0
3 years ago
How many different triangles can you make if you are given the measurements for two Angles and the length of a side that is not
nordsb [41]

Answer:

  c.  2

Step-by-step explanation:

Defining two angles of a triangle means you know the values of all of the angles. When all angles are known and the side opposite one of them is known, then the triangle is completely determined.

In this case, the angle opposite the given side can be either of the two given angles, so two triangles are possible.

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If the two angles have the same measure, then only one triangle is possible.

6 0
3 years ago
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