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nirvana33 [79]
3 years ago
11

A runner ran 2/3 of a race in 21 minutes. They ran the entire race at a constant speed How long did it take to run the entire ra

ce?
Mathematics
1 answer:
Elenna [48]3 years ago
8 0

Answer:

31.5 minutes

Step-by-step explanation:

21 / 2 = 10.5

10.5 x 3 = 31.5

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at the convince store, 24 pack of water bottles are selling for $3.99 for 1 pack, or $9.99 for 3 packs. hiw much money per pack
Fantom [35]

Answer:

you would save .66 per pack so .66×3=1.98

Step-by-step explanation:

9.99÷3=3.33, 3.99-3.33=.66

7 0
2 years ago
N two years, Linda will be half as old as her mother. Her mother is 38 years old now.
Ksenya-84 [330]
I'm not sure about the formula.
But since 38/2=19
19-2=17
Linda is 17 years old.
a possible formula could be:
L=38/2-2
3 0
3 years ago
What is the area of the figure, pls hurry 100 points
valentinak56 [21]

Answer:

<h2>25 1/6 square yards</h2>

Step-by-step explanation:

I am assuming you mean the area of the shaded figure.

So, let's do it this way.

Let's subtract the total area from the unshaded area:

7 1/4 x 6 = 43 1/2

Area of non-shaded = 18 1/3

Area of shaded = 43 1/2 - 18 1/3 = 25 1/6

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

3 0
3 years ago
A coin is tossed 7 times. What is the probability that the number of heads obtained will be between 2 and 7 inclusive? Express y
Marina CMI [18]

Answer:

0.9375

Step-by-step explanation:

Given the following :

Number of coin tosses = 7

Probability that number of heads obtained will be between 2 and 7 inclusive?

x = 2,3,4,5,6,7

Probability (P) = number of required outcomes / total possible outcomes

For a coin toss = 1 Head (H), 1 tail (T)

P(H) = 1 / 2

P(X) = C(7,x) * (1/2)^7

P(X) = C(7, x) / 0.5^-7

P(X) = [C(7,2) + C(7, 3)+ C(7,4) +C(7,5) + C(7,6) +C(7,7)] / 128

P(X) = (21 + 35 + 35 + 21 + 7 + 1) / 128

P(X) = 120 / 128

P(X) = 0.9375

5 0
3 years ago
Trisha had a bowling score of 126 for the first game. She had a score of 97 for the second game.
NeTakaya

Answer:

23% decrease

Step-by-step explanation:

:)

3 0
3 years ago
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