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marissa [1.9K]
3 years ago
15

Pilar and her sister Marisol live near the beach. Pilar has 80 seashells in her collection when Marisol started collecting seash

ells. Marisol started with zero seashells in her collection.•Pilaradds 10 seashells to her collection each week for x weeks.•Marisoladds 20 seashells to her collection each week for xweeks.(a)Write an inequality to represent the situation when the number of seashells in Marisol's collection is greater than the number of seashells in Pilar's collection.(b)Solve the inequality in part (a) for the x. Show your work and explain your answer.
Mathematics
2 answers:
umka2103 [35]3 years ago
7 0

Answer:

a. 20x > 10x + 80

b.  •20x > 10x + 80

• Subtract 10x from both sides: 20x -10x > 10x + 80 - 10x

• Simplify: 10x > 80

• Divide both sides by 10:   10x/10 > 80/10

• Simplify: x > 8

Step-by-step explanation:

10x + 80 = number of seashells Pilar has.

20x = number of seashells Marisol has.  

answer for a:  20x > 10x + 80

answer for b: 20x > 10x + 80

• Subtract 10x from both sides: 20x -10x > 10x + 80 - 10x

• Simplify: 10x > 80

• Divide both sides by 10:   10x/10 > 80/10

• Simplify: x > 8

Tems11 [23]3 years ago
4 0

Answer:

You can always try socratic the app

Step-by-step explanation:

The best way  to find many resources and answers is to use the App Socratic.

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A car is driving at a speed of 40 mi/h. What is the speed of the car in feet per minute? a. 2,400 ft/min b. 211,200 ft/min c. 3,
SCORPION-xisa [38]

Answer:

  3520 ft/min

Step-by-step explanation:

40 mi/h = (40 mi/h)×(5280 ft/mi)×(1 h)/(60 min) = 3520 ft/min

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Each conversion factor has a value of 1 (numerator = denominator), so changes the units without changing the speed.

3 0
3 years ago
please help: What is the equation of a line parallel to -5x + y= 2 that passes through the point with coordinates (-2, 1)?
weqwewe [10]

Answer:

  • y = 5x + 11 or -5x + y = 11

Step-by-step explanation:

<u>Given line:</u>

  • -5x + y = 2

<u>In slope-intercept form:</u>

  • y = 5x + 2

<u>The parallel line has the same slope and will look as:</u>

  • y = 5x + b

<u>This line passes through the point (-2, 1), substitute:</u>

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<u>So the line is:</u>

  • y = 5x + 11

or

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3 0
3 years ago
Laura retired from her job recently, and she has saved about $427,595.00 over the course of her career. She plans to withdraw
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Answer:

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Step-by-step explanation:

8 0
3 years ago
8/10x 1 3/5 =? would be what?
Aleonysh [2.5K]
8/10 x 1 3/5 = ?
first u need to find the mixed fraction is 8/5: 1 3/5 = 8/5
8/10 x 8/5 = 64/50 
64/50 in simplest form: 32/25 
32/25 equals to 1 7/25
so the answer is 1 and 7/25

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%2B1%7D%20%2B%20%5Cfrac%7B4%7D%7Bx%2B4%7D%20-%20%5Cfrac%7B5%7D%7Bx%2B5%3C
Anna11 [10]
[ ( x + 4 )( x + 5 ) + 4( x + 1 )( x +  5) - 5( x + 1 )( x + 4 ) ] / [( x + 1 )( x +  4)( x + 5 )] = ( x^2 + 9x + 20 + 4x^2 + 24x +20 - 5x^2 - 25x - 20) / [( x + 1 )( x +  4)( x + 5 )] =
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4 0
3 years ago
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