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raketka [301]
2 years ago
13

Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which sta

tement comparing the two swimmers is accurate?
1 mile 1,609 meters

Alina swims about 0.7 miles per hour faster than Talia.
Talia swims about 0.7 miles per hour faster than Alina.
Alina swims about 1.5 miles per hour faster than Talia.
Talia swims about 1.5 miles per hour faster than Alina.
Mathematics
1 answer:
Inessa05 [86]2 years ago
7 0

Answer: A/ alina swims about 0.7 miles per hour

Step-by-step explanation:

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Melanie is making lemonade and finds a recipe that calls for 1 part lemon juice, 2 parts sugar, and 8 parts water. She juices 2
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12 tablespoons of sugar and 3 cups of water (48 tablespoons)
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1 year ago
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A searchlight is shaped like a paraboloid of revolution. If the light source is located 2 feet from the base along the axis of s
zhenek [66]

Answer:

3 ft.

Step-by-step explanation:

We have that the parabola formula has the following general equation:

x ^ 2 = 4py

p would come being the distension of the vertex until the focus.

They tell us that this value is 3, that is to say p = 3. Replacing we have:

x ^ 2 = 4 * 3 * y

x ^ 2 = 12 * y

reorganizing for and, we are left with:

y = (1/12) * x ^ 2

We know that the opening is 12 feet wide, therefore, the parabola, being symmetry, must be distributed in the same way, in two equal parts, that is, 12/2 = 6. Therefore, being vertical on the x axis must take values of (-6, y), (6, y).

Which means that the value of x is 6 or -6. (it doesn't matter which of the two is when it is squared)

Replacing in the equation obtained:

y = (1/12) * (6 ^ 2)

y = 3

Therefore the depth is equal to 3 ft.

6 0
2 years ago
Mariana writes the equation below to represent a problem. Which problem could the
Nataly_w [17]

Answer:

Mariana uses 6 boxes of fertilizer each box weighs 15 ounces How much fertilizer does she use in all

Step-by-step explanation:

6 0
2 years ago
20 POINTS!!!
agasfer [191]

Answer:

<u>A. Probability of Russell = 12/37 or 32.4% (Rounding to the next tenth)</u>

<u>B. Probability of Peter = 5/74 or 6.8% (Rounding to the next tenth)</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

               Guard Forward Center Totals

Over 6 feet 25     30        30        85

Under 6 feet 130 120      35        285

Totals           155 150      65        370

2. Russell is 5'9". What is the probability he is a forward?

Probability = Number of forwards under 6 feet/Total number of players

Probability = 120/370

Probability = 12/37 or 32.4% (Rounding to the next tenth)

3. Peter is 6'2". What is the probability he is a guard?

Probability = Number of guards over 6 feet/Total number of players

Probability = 25/370

Probability = 5/74 or 6.8% (Rounding to the next tenth)

5 0
2 years ago
Maureen spent sh 207 to buy 7 exercise books and 4 pens while Sharon spent sh 165 to buy 5 exercise books and 5 pens of same typ
Umnica [9.8K]

Answer:

  book 25; pen 8

Step-by-step explanation:

If we let b and p represent the cost of a book and a pen, respectively, then the two purchases can be written as ...

  7b +4p = 207

  5b +5p = 165

Multiply the second equation by 4/5 and subtract the result from the first equation:

  (7b +4p) -4/5(5b +5p) = (207) -4/5(165)

  3b = 75 . . . . simplify

  b = 25 . . . . . divide by 3

Dividing the second equation by 5 gives ...

  b + p = 33

Solving for p, we have ...

  p = 33 -b = 33 -25 = 8

The cost of an exercise book is 25; the cost of a pen is 8.

3 0
1 year ago
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