All categories

2 years ago

71 cards 5 cards in each box 71 ÷5 with leftover How many boxes are needed for all the cards

Mathematics

2 answers:

Allisa [31]2 years ago

8 0

15 boxes are needed because 70÷5=14
with 1 remainder so you will need another box for that one

Fofino [41]2 years ago

7 0

Answer:

15 boxes

Step-by-step explanation:

Because 71 divided by 5 equals to 14.2, you know that you need at least 14 boxes. However, you cannot have 14.2 boxes, because that implies that you have a fifth of a box, which cannot happen. But because each box can only hold up to 5 cards max, you need to get a 15th box for the last card.

You might be interested in

Let the sample size of leg strengths to be 7 and the sample mean and sample standard deviation be 630 watts and 32 watts, respec

Colt1911 [192]

Answer:

a. There is_<u><em>sufficient</em></u> evidence that the leg

C. 0.010 < P-value < 0.025

b. Power of test = 1- β=0.2066

c. So the sample size is 88

Step-by-step explanation:

We formulate the null and alternative hypotheses as

H0 : u1= u2 against Ha : u1 > u2 This is a right tailed test

Here n= 7 and significance level ∝= 0.005

Critical value for a right tailed test with 6 df is 1.9432

Sample Standard deviation = s= 32

Sample size= n= 7

Sample Mean =x`= 630

Degrees of freedom = df = n-1= 7-1= 6

The test statistic used here is

Z = x- x`/ s/√n

Z= 630-600 / 32 / √7

Z= 2.4797= 2.48

P- value = 0.0023890 > ∝ reject the null hypothesis.

so it lies between 0.010 < P-value < 0.025

b) Power of test if true strength is 610 watts.

For a right tailed test value of z is = ± 1.645

P (type II error) β= P (Z< Z∝-x- x`/ s/√n)

Z = x- x`/ s/√n

Z= 610-630 / 32 / √7

Z=0.826

P (type II error) β= P (Z< 1.645-0.826)

= P (Z> 0.818)

= 0.7933

Power of test = 1- β=0.2066

(c)

true mean = 610

hypothesis mean = 600

standard deviation= 32

power = β=0.9

Z∝= 1.645

Zβ= 1.282

Sample size needed

n=( (Z∝ +Zβ )*s/ SE)²

n= ((1.645+1.282) 32/ 10)²

Putting the values and solving we get 87.69

So the sample size is 88

5 0

3 years ago

Mark mowed 3 lawns in 1 hour how many lanws could he mow in 4 hour

Bond [772]

He can mow 12 lawns in 4 hours.
to get the answer you just multiply the amounts of lawns he mowed by the hours it’s asking.

6 0

3 years ago

Read 2 more answers

What is the volume of a rectangular prism with a length of 4 yards, width of 3 yards and height of 6 yards?

Lunna [17]

Volume= Length*Width*Height
V=(4)(3)(6)
V=72 yards cubed
The answer is A.

4 0

3 years ago

Which graph represents x

Maurinko [17]

The answer is the second graph.

$\frac{x}{3} \leq 2$
You need to isolate x, in order to do this you need to multiply both sides by 3, or 3/1
2*3 = 6
x/3 * 3 = x
Your equation should now be
$x \leq 6$

So the circle should be filled in and pointing towards the left starting from 6

4 0

3 years ago

Read 2 more answers

A jet flew from new york to london in 7 hours the average speed was 499.4 miles an hour how many miles was the trip

DENIUS [597]

499.4 x 7 = 3495.8 miles

4 0

3 years ago