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3 years ago

5

Mr perez buys 3 sets of cards. Each set comes with 18 striped cards & 12 polka dot cards. He uses 49 cards. How many cards d

oes he have left?

1 answer:

klasskru [66]3 years ago

3 0

Answer:

Step-by-step explanation:

Step 1: 3 times ((18 + 12) times 2)

Step 2: 180 is the answer for the step in step 1. 180-49=131

Step 3: The answer is 131.

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Ramon is a waiter. He waits on a table of 4 whose bill comes to $99.69. If Ramon receives a 20% tip, approximately how much will

vlabodo [156]

99.69/100=.9969
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3 years ago

80 Hundreds = ____ Thousandths

allsm [11]

The answer would be 0.8, because 800 hundreds go into 8 thousandths, but there is only 80 hundreds, so the answer is 0.8 thousandths.
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4 years ago

Number of passengers who arrive at the platform in an amtrack train station for the 2 pm train on a saturday is a random variabl

alexgriva [62]

Assuming a normal distribution we find the standardized z scores for a:-

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z2 = (280-180) / 25 = 4
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b
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4 years ago

Using the traditional formula, a 95% CI for p1 − p2 is to be constructed based on equal sample sizes from the two populations. F

inn [45]

Answer:

49

Step-by-step explanation:

Given:

Width = 0.4

Let's take the z value of 95% which is = 1.96

Let's assume population proportion p1 and p2 = 0.5

For margin of error E, the relation between the width and margin of error is 2E.

i.e 2E = 0.4

E = 0.2

To find the sample size, n, let's use the formula :

$n= \frac{z^2*(p_1(1-p_1) + p_2(1-p_2))}{E^2}$

$= \frac{1.96^2(0.5(1-0.5)+0.5(1-0.5))}{0.2^2}$

= 48.02

≈ 49

8 0

4 years ago

Someone please help asap, I will mark as brainliest. Thank you!!

defon

Answer:

the answer is c go ahead and click it

Step-by-step explanation:

8 0

2 years ago