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Andrew [12]
4 years ago
11

Use a model to divide 8 by 2/3 and find the quotient

Mathematics
1 answer:
marissa [1.9K]4 years ago
4 0
\frac{8}{2/3}= 12
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On a trip you had to change your money from dollars to British pounds. You got 560 pounds for 800 dollars. How many pounds will
guapka [62]

Answer:

B. 210

Step-by-step explanation:

800/560 = 1.42857142857

300/1.42857142857= 210

7 0
3 years ago
The heights​ (in inches) and pulse rates​ (in beats per​ minute) for a sample of 1111 women were measured. Using technology with
Snowcat [4.5K]

Answer:

There is evidence to support the claim that there is a linear correlation between the heights and pulse rates of​ women

Step-by-step explanation:

given that the heights​ (in inches) and pulse rates​ (in beats per​ minute) for a sample of 11 women were measured.

correlation coefficient r = 0.7200

H_0 : r=0\\H_a: r \neq 0

(two tailed test at 5% significance level)

r difference = 0.7200

Std error of r = \sqrt{\frac{1-r^2}{n-2} } \\=\sqrt{\frac{0.4816}{9} } \\=0.2313

Test statistic t = r difference/std error = 3.1128

df =9

p value=0.012458

since p <alpha, we reject H0

There is evidence to support the claim that there is a linear correlation between the heights and pulse rates of​ women

3 0
4 years ago
In a lottery game, a player picks 5 numbers from 1 to 46. If 4 of the 5 numbers match those drawn, the player wins second prize.
Umnica [9.8K]

Answer:

Step-by-step explanation:

given that in a lottery game, a player picks 5 numbers from 1 to 46

If 4 of the 5 numbers match those drawn, the player wins second prize.

Assuming the numbers are chosen without repitition we find that the player can choose 5 numbers in 46C5 ways.

To win the prize he must choose 4 numbers form the 5 numbers in the prize and remaining 1 number any other number.

i.e. no of ways to get II price = choosing 4 numbers out of 5, and one number from 41

= 5C4*41C1 = 205

Probability of winning this prize

=\frac{205}{46C5} \\= \frac{205*5(4)(3)(2)1}{46*45*44*43*42} \\=\frac{41*5*2*3}{46*9*22*43*21} \\=\frac{205}{1370754}

6 0
3 years ago
The difference of two numbers is 6. their sum is 20, what are the numbers?
yanalaym [24]
13 and 7 are the correct numbers
5 0
4 years ago
Read 2 more answers
Good points get them easy!!!
ale4655 [162]

Answer:

x = 7

Step-by-step explanation:

These angles are corresponding angles which mean that they're equal to each other:

7x - 4 = 5x + 10

7x - 5x = 10 + 4

2x = 14

x = 14/2

x = 7

8 0
3 years ago
Read 2 more answers
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