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3 years ago

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the average monthly precipitation for dallas for oct, nov, and dec is 3.47 in. If 2.88 in. falls in oct and 3.13 in. falls in no

v, how many inches must fall in dec so that the average monthly precipitation for these months exceeds 3.47 in.? SOLVE Pls

1 answer:

saveliy_v [14]3 years ago

4 0

Answer:

3

Step-by-step explanation:

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Can any one solve this

Sindrei [870]

Y=x-8----equation 1
2x+3y=1------equation 2
2x+3(x-8)
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5x=24
x=24/5
x=~5
substitute for X in equation 1
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vaieri [72.5K]

Answer:

11.6666666667

Step-by-step explanation:

First you multiply 7 by 5

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3 years ago

Solve for x. 7(x - 3) 3(4 - x) = -8 x = 1/4 x = 25/10 x = -16/19 x = -41/10

Ann [662]

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3 years ago

Solve the question below, please.

Ne4ueva [31]

Answer:

Adam: 52.26°

Step-by-step explanation:

Use Cosine Rule, $Cos(C) = \frac{a^2 + b^2 - c^2}{2ab}$ , to find the angle of both players.

✔️Angle of Carlos:

Let the angle be C,

a = 50 ft

b = 40 ft

c = 24 ft

Plug in the values into the equation

$Cos(C) = \frac{50^2 + 40^2 - 24^2}{2*50*40}$

$Cos(C) = \frac{3,524}{4,000}$

$C = Cos^{-1}(\frac{3,524}{4,000})$

C = 28.24° (nearest hundredth)

✔️Angle of Adam:

Let the angle be C,

a = 30 ft

b = 22 ft

c = 24 ft

Plug in the values into the equation

$Cos(C) = \frac{30^2 + 22^2 - 24^2}{2*30*22}$

$Cos(C) = \frac{808}{1,320}$

$C = Cos^{-1}(\frac{808}{1,320)}$

C = 52.26° (nearest hundredth)

6 0

3 years ago