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matrenka [14]
3 years ago
11

Ivan has 4 hours of music on his mp3 player. Jazz makes up ¹/6 of the total time. how many hours of jazz are on Ivan's mp3 playe

r?
Mathematics
1 answer:
valkas [14]3 years ago
7 0
.66 is the answer that i got.                     
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A pension fund invests $55,400 in utility stocks and earns 14% per year on the investment. How much money is earned per year?
mixer [17]

In this question , it is given that

A pension fund invests $55,400 in utility stocks and earns 14% per year on the investment.

We have to find amount of money earned per year and for that we have to find 14% of 55400 which is

=0.14*55400 = $7756

So he earner $7756 per year by investing $55,400 in utility stocks .

8 0
3 years ago
In triangle $DEF,$ $\angle D = 30^\circ,$ $\angle F = 60^\circ,$ and $EF = 6.$ Find $DE + DF.$ [asy] unitsize(2 cm); pair D, E,
lesya692 [45]

Answer:

The answer is below

Step-by-step explanation:

In triangle DEF, ∠D = 30°, ∠F = 60° and EF = 6. Find DE + DF.

Solution:

A triangle is a polygon with three sides. There are different types of triangles such as isosceles triangle, scalene triangle equilateral triangle, right angled triangle.

In triangle DEF:

∠D + ∠E + ∠F = 180° (sum of angles in a triangle)

30 + ∠E + 60 = 180

∠E + 90 = 180

∠E = 180 - 90

∠E = 90°

This is a right angled triangle since one angle = 90° (∠E).

Using sine rule:

\frac{|EF|}{sin(D)}=\frac{|DE|}{sin(F)}  \\\\\frac{6}{sin(30)}=\frac{|DE|}{sin(60)}  \\\\|DE|=10.39\\\\\frac{|EF|}{sin(D)}=\frac{|DF|}{sin(E)}  \\\\\frac{6}{sin(30)}=\frac{|DF|}{sin(90)}  \\\\|DF|=12\\\\

Hence DE + DF = 12 + 10.39 = 22.39

6 0
3 years ago
PLEASE HELP ME! I DON'T UNDERSTAND THIS
Marrrta [24]
Answer: 
The system is composed of these two inequalities combined
y <= -x+4
y >= (1/3)x

-----------------------------------------------------------------------

Explanation:

The solid line has the boundary equation y = -x+4
This line goes through (0,4) and (4,0). Using the slope formula, we find that m = -1. Plugging m = -1 and (x,y) = (0,4) into y = mx+b leads to y = -x+4

The shading is below the solid line so we change the equal sign to a "less than or equal to" sign, which leads us to y <= -x+4

That takes care of the first inequality. We must use "or equal to" as part of the inequality to ensure the boundary is solid

------------

The second inequality is y > (1/3)x as the boundary line is y = (1/3)x. This line goes through (0,0) and (3,1). The slope is 1/3 and y intercept is 0

The boundary is a dashed line. This means we don't have "or equal to" as part of the inequality


7 0
3 years ago
I need answer plz, I would appreciate if someone can help me
Anni [7]

Answer:

(0,b) from a formula y=mx+b

(0,y) from a graph

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The distance by rail from Leicester to Londonis 100 miles.
Zarrin [17]

The arrival time in london of a train that leaves Leicester to london at 11:50 A.M is 13:05 pm.

To calculate the arrival time in london of a train that leaves Leicester to london at 11:50 A.M, use use the formula below.

Formula:

  • Ta = [(d/s)+11:50]....... Equation 1

Where:

  • Ta = Arrival time
  • d = distance from Leicester to London
  • s = Speed

From the question,

Given:

  • d = 100 miles
  • s = 80 mph

Substitute these values into equation 1

  • Ta = [(100/80)+11:50]
  • Ta = 1.25h+11:50
  • Ta = 1 hours 15 minutes +11:50
  • Ta = 13:05 pm

Hence, the arrival time in london of a train that leaves Leicester to london at 11:50 A.M is 13:05 pm.

Learn more about time here: brainly.com/question/4931057

5 0
2 years ago
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