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3 years ago

A=bx+cx/2 please help

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

5 0

Answer:

I'm too tired to explain, here's some digital work on a site called Symbolab:

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A bee flies at 9 feet per second directly to a flower bed from its hive. The bee stays at the flowerbed for 15 minutes, and then

Ivan

Complete question is;

A bee flies at 9 feet per second directly to a flower bed from its hive. The bee stays at the flowerbed for 15 minutes, and then flies directly back to the hive at 6 feet per second. It is away from the hive for a total of 18 minutes.

a. What equation can you use to find the distance of the flowerbed from the hive?

b. How far is the flowerbed from the hive?

Answer:

A) (d/9) + 900 + (d/6) = 1080

B) d = 648 ft

Step-by-step explanation:

A) We are told that A bee flies at 9 feet per second directly to a flower bed from its hive.

Time taken is given as;

t = distance/speed

If distance is d from the hive to the flower bird.

Then, t1 = d/9

The bee stays at the flowerbed for 15 minutes. Thus, time spent at the flowerbird in seconds is; t2 = 15 × 60 = 900 seconds.

We are told that the bee flew directly back to the hive at 6 feet per second.

Thus,time is;

t3 = d/6

Since total time spent away from hive is 18 minutes, then converting to seconds, we have; t = 18 × 60 = 1080 s

Thus;

(d/9) + 900 + (d/6) = 1080

B) Since we have derived;

(d/9) + 900 + (d/6) = 1080

Then we can find d.

Multiply through by 18 to get;

2d + (900 × 18) + 3d = 1080 × 18

2d + 16200 + 3d = 19440

5d = 19440 - 16200

5d = 3240

d = 3240/5

d = 648 ft

4 0

3 years ago

Please help me answer what letter

Leona [35]

Answer:

3/2

Step-by-step explanation:

Basically just multiply 1/2 by numbers.

1/2 * 2 = 1

1/2 * 3 = 3/2

1/2 * 4 = 2

1/2 * 5 = 5/2

And so on.

3 0

3 years ago

Plz help me with this

Mkey [24]

Answer: B) A = 750(1.04)ⁿ

Step-by-step explanation:

The formula for compounded annually is: A = P(1 + r)ⁿ where

A (amount accrued) = unknown
P (amount invested) = $750
r (interest rate) = 4% -->(0.04)
t (time in years) = unknown

A = 750(1 + 0.04)ⁿ

= 750(1.04)ⁿ

8 0

3 years ago

Which expression represents the ratio of the difference of the two means to Sidney's mean absolute deviation

prohojiy [21]

Answer:

The ratio of the difference of the two means to Sidney's mean absolute deviation = $\frac{4}{3.28}$ = 1.2195

Step-by-step explanation:

P.S - The exact question is -

Given - The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below.

Sidney’s Grades Phil’s Grades

Mean 82 78

Mean Absolute Deviation 3.28 3.96

To find - Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?

Proof -

Given that Mean of Sidney Grades = 82

Mean of Phil's Grades = 78

So,

The difference of two means = 82 - 78 = 4

Also,

Given, Mean Absolute Deviation of Sydney = 3.28

Now,

The ratio of the difference of the two means to Sidney's mean absolute deviation = $\frac{4}{3.28}$ = 1.2195

4 0

3 years ago

Please help and show work!!

Paladinen [302]

B. Because 20 is greter than 18.

6 0

4 years ago

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