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adoni [48]
3 years ago
9

5v + 7f =28.70 if f is 2.85

Mathematics
2 answers:
Mrac [35]3 years ago
6 0

5v+7(2.85)=28.70

5v+19.95 = 28.70

5v = 8.75

v = 1.75

adell [148]3 years ago
3 0
Hey!

First, let's write the problem.
5v+7\left(2.85\right)=28.7
Multiply 7 with 2.85.
5v+19.95=28.7
Subtract 19.95 from both sides.
5v+19.95-19.95=28.7-19.95
5v=8.75
Divide both sides by 5.
\frac{5v}{5}=\frac{8.75}{5}
v=1.75

Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish
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Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

\frac{dP}{dt} =4.058e^{1.6t}

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Where k is a constant of Integration.

At t=0, P(t)=36

36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19

Therefore:

P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560

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The angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum o
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Step-by-step explanation:

It is given that the angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum of 540.

<u>Let me define the each terms.</u>

1. We know that each angle in a triangle is 60°, So there is a three angle in a regular triangle.

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2. We know that each angle in a rectangle, is 90°, So there is a four angle in a regular rectangle.

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Similarly,

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So, sum of the angles of an octagon = 135° × 8

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Therefore, the required sum of the angles of an octagon is 1080°

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Answer:

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Step-by-step explanation:

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1.3n-0.03=-9 (solve for n) grade lvl. 7
bazaltina [42]

Hello from MrBillDoesMath!

Answer:

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Discussion:  

1.3n - 0.03 = -9     =>              multiply both sides by 100

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Thank you,

MrB

4 0
3 years ago
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