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Inga [223]
3 years ago
5

A scientist uses a submarine to study ocean life she begins at sea level which is at an elevation of 0 ft she travels straight d

own for 70 seconds at a speed of 3.6 ft per second she travels directly up for 50 seconds at a speed of 2.5 ft per second
after this 120 second period how much time, in seconds, will it take for the scientist to travel to sea level at the submarine's max speed of 4.5 ft per second
round answer to nearest tenth of a second
Mathematics
1 answer:
Marat540 [252]3 years ago
8 0
3.6*70 is 252 50*2.5 is 125 252-125 is 127 127/4.5 is 28.2 so 28.2 seconds
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Step-by-step explanation:

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A bakery can make 230 bagels in 2 hours. How many bagels can they bake in 16 hours ? What’s the rate per hour ?
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AB = 3 + x
ICE Princess25 [194]

The given quadrilateral ABCD is a parallelogram since the opposite sides are of same length AB and DC is 4 and AD and BC is 2.

<u>Step-by-step explanation</u>:

ABCD is a quadrilateral with their opposite sides are congruent (equal).

The both pairs of opposite sides are given as AB = 3 + x , DC = 4x , AD = y + 1 , BC = 2y.

  • AB and DC are opposite sides and have same measure of length.
  • AD and BC are opposite sides and have same measure of length.

<u>To find the length of AB and DC :</u>

AB = DC

3 + x = 4x

Keep x terms on one side and constant on other side.

3 = 4x - x

3 = 3x

x = 1

Substiute x=1 in AB and DC,

AB = 3+1 = 4

DC = 4(1) = 4

<u>To find the length of AD and BC :</u>

AD = BC

y + 1 = 2y

Keep y terms on one side and constant on other side.

2y-y = 1

y = 1

Substiute y=1 in AD and BC,

AD = 1+1 = 2

BC = 2(1) = 2

Therefore, the opposite sides are of same length AB and DC is 4 and AD and BC is 2. The given quadrilateral ABCD is a parallelogram.

6 0
4 years ago
Lillian invests money in an account paying a simple interest of 6.6% per year. If she invests $160 and no money will be added or
denis-greek [22]

Answer:

Lillian will have $170.56 in one year

Step-by-step explanation:

First we have to figure out what is 6.6% of 160.

160 * 6.6% = 10.56

Now we just add 160 with the 6.6% to figure out the answer.

160 + 10.56 = 170.56

So, the answer is 170.56 dollars.

Hope this helps! :)

૮ ・ﻌ・ა

4 0
3 years ago
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