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larisa86 [58]
3 years ago
15

Melissa needs to buy some pencils. Brand A has a pack of 24 penals for $8.77. Brand B has a pack of 26 pencils for $9.54

Mathematics
1 answer:
almond37 [142]3 years ago
3 0

Answer:

Brand A is the better buy.

Step-by-step explanation:

You can use proportions to set up and solve this problem.

24 1

----- = ------

8.77 $.365 is the unit price for Brand A

26 1

----- = ----

9.54 $.366 is the unit price for Brand B

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An army base in the desert is located at the origin, O of an x-y coordinate system. A soldier at point P needs to determine his
Nutka1998 [239]

Answer/step-by-step explanation

The soldier at point P lie on a parabola because he determined his position and distances from towns A and B through measurement of the difference in timing (phase) of radio signals received from the two towns.

This analysis of the signal time difference gives the difference in distance of the soldier at P, from the towns.

This process is known as hyperbolic navigation.

These distances of point P from towns A and B is estimated by the soldier at point P, by measuring the delay localizes the receiver to a hyperbolic line on a chart.

Two hyperbolic lines will be drawn by taking timing measurements from the

towns A and B .

Point P will be at the intersection of the lines.

These distances of point P(The soldier's positions) from town A and town B were determined using the timing of the signals received from the two towns, due to the fact that point P was on a certain hyperbola.

8 0
3 years ago
Help me please I need it
marusya05 [52]

Answer:

he gets 11 per week

Step-by-step explanation:

mark brainly pls

8 0
2 years ago
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Which of the following is 10 times what the 5 represents in 8,145
Alexxx [7]

Answer:

A

Step-by-step explanation:

5 in 8145 is in the ones place. Hence 10 times of that

= 10 × 5

= 50

Hence answer is <u>A</u><u>.</u>

7 0
2 years ago
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HELP The minute hand of a clock is 5 inches long. to the the nearest tenth of an inch, how far does the tip of the minute hand t
faltersainse [42]

Answer:

18.326 inches

Step-by-step explanation:

The question is basically asking us to find the arc length that the tip of the minute hand travels. The formula for an arc length is S=θr. So we need th find the angle that the minute hand passes through. We know that there is 360 degrees in a cicle and there is 12 stops around a clock, so divide 360 by 12 to find the degrees the minute hand travels every 5 minutes. We ge that every 5 minutes the hand travels 30 degrees, and 35 minutes is 7*5 so we multiple 30*7 to find the angular displacement, and we get 210 degrees. This equation uses radians though so we have to convert, which can be done doing \frac{210}{1} *\frac{\pi }{180}, and we ge that θ is \frac{7\pi }{6} so (\frac{7\pi }{6})(5)= 18.326 inches

3 0
2 years ago
50 Points!!
charle [14.2K]

1. 2\cdot(8-3)-6=2\cdot5-6=4

2. 14c-6=22\implies14c=28\implies c=2

3. 2x+18=5x\implies 3x=18\implies x=6

4. 18-c+9c+6=24+8c

5. 8x=-56\implies x=-7

Hope this helps :)

3 0
2 years ago
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