3 years ago

Arnold can do 65 push-ups in 5 minutes. how many push-ups can he do in 1 minute?

1 answer:

8 0

65 push-ups in 5 minutes.
Divide 65 by 5
65÷5=13
Arnold can do 13 push ups in 1 minutes.

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mezya [45]

ok thanks for letting me know you need help

4 0

2 years ago

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

Hence, the value of the test statistic = 0.84

6 0

3 years ago

faltersainse [42]

Since A is (-7,-4) and C is (7,3) for the x value from a to c is 14 for the y value from a to c is 7

Do 14 x 2/7 which is 4

Do 7 x 2/7 which is 2

then add (-7+4,-4+2) which is (-3,-2)

7 0

3 years ago

Pavlova-9 [17]

Answer:Coach Herrera needs to buy 23 cans of balls

Step-by-step explanation:You do 92 divided by 4 because c next to a number means multiply and the opposite of multiply is divide

3 0

3 years ago

nikdorinn [45]

4 / (1/4 - 5/2)

4 / (1/4 -10/4)

4 / (-9/4)

4 x (-4/9) = -16/9

8 0

2 years ago