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2 years ago

if Amanda hikes at an average speed of 2.72 miles per hour, how long will it take her to hike 6.8 miles

2 answers:

7 0

It will take Amanda 2 hours and 30 minutes because 2.72 is an hour and 1.36 is half an hour (30 minutes) so if you multiply 2.72 by 2 you get 5.44 then you add 1.36 and you will end up with 6.80 so the answer is 2 hours and 30 minutes.

kompoz [17]2 years ago

3 0

Speed times time=distance
distance=6.8
speed=2.72
time=?

2.72 times ?=6.8
divide both sides by 2.72
?=2.5

answer si 2.5 hours

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shepuryov [24]

A, the first one only, this parabola only has a minimum and no maximum. the other statements are also just false

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1 year ago

Help please!! 20 point question!! Which equation represents the general form a circle with a center at (-2, -3) and a diameter o

Ivan

Answer:

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Step-by-step explanation:

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1 year ago

With food prices becoming a great issue in the world; wheat yields are even more important. Some of the highest yielding dry lan

Rzqust [24]

Answer:

Option E) 61.6

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100 bushels per acre

Standard Deviation, σ = 30 bushels per acre

We assume that the distribution of yield is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(X>x) = 0.90

We have to find the value of x such that the probability is 0.90

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 100}{30})=0.90$

$= 1 -P( z \leq \displaystyle\frac{x - 100}{30})=0.90$

$=P( z \leq \displaystyle\frac{x - 100}{30})=0.10$

Calculation the value from standard normal table, we have,

$P(z$

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Hence, the yield of 61.6 bushels per acre or more would save the seed.

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1 year ago

A tailor cuts a piece of thread One-half of an inch long from a piece Nine-sixteenths of an inch long. What is the length of the

lukranit [14]

Answer:

The length of the remaining piece of thread is $\frac{1}{16}.$

Step-by-step explanation:

Given:

A tailor cuts a piece of thread One-half of an inch long from a piece Nine-sixteenths of an inch long.

Now, to find the length of the remaining piece of thread.

Total thread = $\frac{9}{16} \ inch.$

Tailor cuts a piece of thread = $\frac{1}{2}\ inch.$

Now, to get the length of the remaining piece of thread by subtracting tailor cuts a piece of thread from the total thread:

$\frac{9}{16} -\frac{1}{2} \\\\=\frac{9-8}{16} \\\\=\frac{1}{16}$

Therefore, the length of the remaining piece of thread is $\frac{1}{16}.$

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1 year ago

If 153=2(z+z)n153=2(z+z)n153, equals, 2, left parenthesis, z, plus, z, right parenthesis, n, then what is the value of 2n(2z)-19

Nostrana [21]

What you must do for this case is to rewrite the first expression to find its value.
We have then:
153 = 2 (z + z) n
Rewriting:
153 = 2n2z
Then,
2n (2z) -193
Substituting
153-193 = -40
Answer:
the value of 2n (2z) -193 is
-40

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1 year ago