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2 years ago

11

Hill can make 2/5 a dozen cookies in 1/3 hour, what is his rate per hour

1 answer:

Setler [38]2 years ago

3 0

Answer:1 1/5 dozen cookies a hour

Step-by-step explanation: hope it helps

You might be interested in

Is 7n equivalent to 15n-8n

Lemur [1.5K]

Answer:

Yes.

Step-by-step explanation:

Yes. When we simplify 15n-8n, it equals 7n.

5 0

2 years ago

A rectangle has a length four more than

torisob [31]

L ≥ 5w + 4
2(L+w) ≥ 32

L+w ≥ 16

6w + 4 ≥ 16
6w ≥ 12
w ≥ 2

L ≥ 5w + 4
L ≥ 14

If L = 14 and w = 2 then the perimeter is 32.
These are the smallest dimensions that fit the criteria.

Note: If we raise the width by 1 to w = 3
then the length is at least 19. At 19 by 3 we have P = 44
Like would be appreciated!!

8 0

11 months ago

A bathtub empties at 15 gallons per minute. What is this in liters per second?

Serjik [45]

Answer:

Step-by-step explanation:

approximately 0.94625 liters per second

7 0

2 years ago

I need to know x . if you could also explain that would be nice

defon

Answer:

x = 7.5

Step-by-step explanation:

Since the midsegment and the third segment of the triangle are parallel to each other, therefore,

$\frac{8 + 10}{8} = \frac{6 + x}{6}$

$\frac{18}{8} = \frac{6 + x}{6}$

$\frac{9}{4} = \frac{6 + x}{6}$

Cross multiply

$9*6 = 4(6 + x)$

$54 = 24 + 4x$

Subtract 24 from each side

54 - 24 = 4x

30 = 4x

Divide both sides by 4

30/4 = x

7.5 = x

x = 7.5

4 0

2 years ago

It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose we are interested i

lidiya [134]

Answer:

Step-by-step explanation:

We are given that 30% of California residents have adequate earthquake supplies.

a) Ramon variable X denotes the number of the california residents that have adequate earthquake insurance

B) x can take value 1 ,2 ,3 ......

C)The distribution of random variable is geometric distribution with parameter p=0.3

The pmf of geometric distribution is

$P(X=x)=0.3(1-0.3)^{x-1} , x=1,2,3...$

D)P(X=1) or P(X=2)=P(X=1)+P(X=2)

P(X=1) or P(X=2)= $0.3(1-0.3)^{1-1}+0.3(1-0.3)^{2-1}=0.51$

E)

$P(X \geq 3)=1-P(X$

F)

$E(X)=\frac{1}{p}$

p is the resident who does not have adequate earthquake supplies.

p = 1-0.3 = 0.7

$E(X)=\frac{1}{0.7}=1.42$

G) $E(X)=\frac{1}{q}=\frac{1}{0.3}=3.33$

8 0

3 years ago