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dexar [7]
3 years ago
13

The rain caused the river to rise a total of 6 2/3 inches. The river was rising at an average of 2/3 of an inch each hour. How m

any hours did it rain?
Mathematics
1 answer:
Rzqust [24]3 years ago
4 0
= 6 2/3 / 2/3
= 20/3 / 2/3
= 20/3 x 3/2
= 60/6
=10

It rained for 10 hours.
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A single ball is taken at random from an urn containing 13 balls numbered 1 through 13. What is the probability of obtaining the
Maslowich
The probability of obtaining a 1 is 1/13, so the probability of not getting a 1, that is, the probability of getting a ball different from 1, is 1- (1/13)=12/13, which is 0.923
7 0
3 years ago
Simplify 3a - 2(8 +4a)
tigry1 [53]

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

Let's simplify step-by-step.

3a − 2 ( 8 + 4a )

Distribute:

= 3a + ( −2 ) ( 8 ) + ( −2 ) ( 4a )

= 3a + −16 + −8a

Combine Like Terms:

= 3a + −16 + −8a

= ( 3a + −8a ) + ( −16 )

Answer:

= −5a − 16

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4 0
3 years ago
Translate the algebraic expression below into a written expression.
miskamm [114]

Answer:

b is the anwer of youre question

4 0
3 years ago
Read 2 more answers
Divide of a right angle into two parts such that the number of English minutes in one to the
stira [4]

Answer:

  • π/3 radians, 3600 English minutes
  • π/6 radians, 333,333 1/3 French seconds

Step-by-step explanation:

An English minute is (1/60)(π/180) radian = π/10800 radian.

A French second is (1/100)(1/100)(π/200) radian = π/2000000 radian.

So, the ratio of angle sizes in common units will be ...

  27(π/10800) : 2500(π/2000000) = (2/800) : (1/800) = 2 : 1

Since the total of these ratio units is 2+1 = 3, we need to divide the right angle into 3 parts. The English part will be 2 of those; the French part will be 1 of them. A 1/3 part of a right angle is π/6 radians, so the right angle division will be ...

  English : French = π/3 radians : π/6 radians

  = 3600 English minutes : 333,333 1/3 French seconds

  = 27 : 2500

5 0
3 years ago
What function represents this graph??
mr Goodwill [35]

The required piecewise function that represents the graph is given as:

f(x)=\left \{ {{y = -3x-10} \atop y=-\frac{1}{2}x-3 } \atop y=-2x-6 }} \right.

<h3>Piecewise functions</h3>

The graph consists of 3 lines with different equations and slopes. In order to determine the function it represents, we will create a piecewise function.

For the line crossing the negative x-axis

Using the coordinate points (-4, 2) and (-2, -4)

Slope = -6/2

Slope = -3

2 = -3(-4) + b
2 - 12 = b

b = -10

The equation of the line will be y = -3x-10

For the line crossing the negative y-axis

Using the coordinate points (-2, -4) and  (2,-2)

Slope = 2/4

Slope = 1/2

-2 = 1/2(2) + b
-2 - 1 = b

b = -3

The equation of the line will be y = -1/2x-3

For the line crossing the positive x-axis

Using the coordinate points (2, -2) and (3, 0)

Slope = 2/1

Slope = 2

0 = 2(3) + b
0 - 6 = b

b = -6

The equation of the line will be y = 2x-6

The required piecewise function that represents the graph is given as:

f(x)=\left \{ {{y = -3x-10} \atop y=-\frac{1}{2}x-3 } \atop y=-2x-6 }} \right.

Learn more on piecewise function here: brainly.com/question/18499561

#SPJ1

3 0
2 years ago
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