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serious [3.7K]
2 years ago
8

The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 5 h

ours for a car moving at 44 mph. What is the speed of a car that makes the trip in 11 hours?
Mathematics
1 answer:
kogti [31]2 years ago
7 0

v=d/t

44=d/5

d=220 mile

v=220/11

v=20 mph

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Pls help me
gizmo_the_mogwai [7]

Answer:

no

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Step-by-step explanation:

not 100% but it should be right

3 0
2 years ago
If I cut 2/3 of a pie and put the big piece on my plate. Then eat 1/4 of the piece. What fraction of the original pie did I eat.
Hunter-Best [27]
If you took \frac{2}{3} of a pie then only ate \frac{1}{4} of that slice, you ate \frac{1}{4} of \frac{2}{3}.

\frac{2}{3} * \frac{1}{4} = \frac{2}{12}

Simplify.

\frac{2}{12} = \frac{1}{6}

So, you ate 1/6 of the pie.
6 0
3 years ago
Read 2 more answers
A very large book is numbered to 1 to 11521 How many digits are used to print all these page numbers
stealth61 [152]

Answer:

46,499 digits

Step-by-step explanation:

Total pages of book = 11,521

9 pages numbered 1 - 9 that need 1 digit each = 9 × 1

= 9 digits

90 pages numbered 10 - 99 that need 2 digits each = 90 × 2

= 180 digits

900 pages numbered 100 - 999 that need 3 digits each = 900 × 3

= 2,700 digits

9000 pages numbered 1000 - 9999 that need 4 digits each = 9000 × 4

= 36,000 digits

1522 pages numbered 1000 - 11521 that need 5 digits each = 1522 × 5

= 7,610 digits

Total digits needed = 9 digits + 180 digits + 2,700 digits + 36,000 digits + 7,610 digits

= 46,499 digits

5 0
3 years ago
(k + 3)by the power of 3​
kolezko [41]
Your answer is: 3k + 9
7 0
2 years ago
The manufacturer of a fertilizer guarantees that, with the aid of the fertilizer, 80% of planted seeds will germinate. Suppose t
olga nikolaevna [1]

The Probability of that more than 7 of them germinate is 0.2948.

<h3>What is Probability?</h3><h3>Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1.</h3>

We are to determine the probability that more than 7 of 10 seeds (i.e. 8, 0r 9 0r 10) germinate.

The probability that all 10 seeds germinate is equal 0.80¹⁰= 0.1073 = 10.73%.

The probability that only the first (only the second, etc ) seed does not germinate is equal 0.20 X 0.80⁹= 0.0268 = 2.68%.

The probability that 6 seeds germinate is the sum of the probabilities that only the first seed does not germinate, only the second one does not germinate, etc, and equals to 10 X 0.0268  = 0.268 = 26.8%.

The total probability that more than 7 of 10 seeds germinate is the sum of the probabilities that 10 seeds germinate and that 7 seeds germinate, i.e. 2.68 % + 26.8 % = 29.48 %.

Thus, The Probability of that more than 7 of them germinate is 0.2948.

Learn more about Probability from:

brainly.com/question/11234923

#SPJ1

3 0
2 years ago
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