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Serjik [45]
3 years ago
12

Mark owes his sister $15. He earned $20. He gave 1/5 of his earnings to a local charity and then he paid his sister. Does Mark h

ave enough to repay his sister the full amount? Why or why not?
Mathematics
2 answers:
ehidna [41]3 years ago
7 0

Answer:

Yes, Mark has $16 left and only has to pay his sister $15.

Step-by-step explanation:

1/5=x/20

use cross multiplication to find (x),which represents 20% of 20.

x/20=1/5 (cross multiply)

20=5x (divide by 5 on both sides)

x=4

This tells you that Mark gave $4 to the local charity.

20-4=16

Subtracting 4 from his original amount, he now has $16 left.

irina [24]3 years ago
3 0

Answer: yes

Step-by-step explanation:

Mark gave 1/5 of 20 = $4 to local charity. He has $16 left. He paid his sister $15. He still has $16 - $15 =$1 left

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Answer:

9343620

Step-by-step explanation:

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3 years ago
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34kurt

Answer:

x = 37/3 = 12.333

Step-by-step explanation:

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  15x - 185  =   5 • (3x - 37)

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

2.1      Solve :    5   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

2.2      Solve  :    3x-37 = 0

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Divide both sides of the equation by 3:

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4 0
3 years ago
the graph of f(x) can be compressed vertically and shifted to the left to produce the graph of g(x). if f(x)=x^3 which of the fo
Paul [167]

Answer:

Example: g(x) = 0.5(x+2)^3

Step-by-step explanation:

The correct answer choice should match the following:

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5 0
2 years ago
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To find slope, you do (y2-y1)/(x2-x1).
When substituting in the variables, you get (0-5)/(10-0), which is -5/10, which is simplified to -1/2. Of course, that is when the warehouse is Quadrant II. If you look at it from another point of view, the slope will be positive so your answer is A) 1/2.
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3 0
2 years ago
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Answer:

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Step-by-step explanation:

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7 0
2 years ago
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