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saul85 [17]
3 years ago
14

John wrote 1/5 of a paper in 1/4 of an hour how long did it take him to write an entire paper?\

Mathematics
1 answer:
MatroZZZ [7]3 years ago
7 0

Answer:

1\frac{1}{4}\ hours

Step-by-step explanation:

we know that

using proportion

\frac{(1/4)}{(1/5)}\frac{hour}{paper}=\frac{x}{1}\frac{hour}{paper} \\ \\x=5/4\ hours

covert to mixed number

5/4\ hours=1\frac{1}{4}\ hours

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Let x be a random variable that represents hemoglobin count (hc) in grams per 100 milliliters of whole blood. then x has a distr
Zolol [24]
<span>Answer: Calculating the t test statistic t = (xbar - mu)/(s/sqrt(n)) t = (4.40-4.66)/(0.28/sqrt(6)) t = -2.27452618972722 t = -2.275 The t test statistic is approximately -2.275</span>
4 0
3 years ago
The manager at a concert venue keeps track of the number of adult tickets and student tickets sold each day and the total money
poizon [28]

Answer: the number of adult and student tickets sold are (45, 29)

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of student tickets that were sold.

On Wednesday, a total of 74 tickets were sold. This means that

x + y = 74

x = 74 - y- - - - - - - - - - - - - - 1

If adult tickets are sold for $15 and student tickets are sold for $11 and the money collected was $994, it means that

15x + 11y = 994- - - - - - - - - - - - - - 2

Substituting equation 1 into equation 2, it becomes

15(74 - y) + 11y = 994

1110 - 15y + 11y = 994

- 15y + 11y = 994 - 1110

- 4y = - 116

y = - 116/ - 4

y = 29

Substituting y = 29 into equation 1, it becomes

x = 74 - 29 = 45

6 0
3 years ago
A restaurant sells sandwiches and will deliver for an additional cost. To have three sandwiches delivered, it costs $20. To have
zimovet [89]

Answer:

12 sandwiches

Step-by-step explanation:

If 3 sandwiches cost $20

Then x sandwiches cost $80

3----20

x----80

20x=3 x 80

20x=240

x=240/20

x=12 sandwiches

7 0
2 years ago
Mary has a cone that has a radius of 5cm and height of 10cm. James has a square pyramid with base length of 10cm and height of 5
lukranit [14]

Answer: The cone has a larger volume.

Step-by-step explanation:

Volume of a cone = ⅓πr²h

where, radius = 5cm

height = 10cm

Volume = ⅓ × 3.142 × 5² × 10

Volume of cone = 261.83cm³

Volume of square pyramid = A(h/3)

where, A = 10 × 10 = 100cm²

Volume = 100 × (5/3)

Volume of square pyramid = 166.67cm³

Therefore, the cone has a larger volume.

5 0
3 years ago
PLEASE HELP ME ASAP! Is my answer correct?
Rudik [331]
Yes it is ABATE ok it is correct
6 0
3 years ago
Read 2 more answers
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