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Marina CMI [18]
2 years ago
5

The equation d = 22.5n + 27.5 represents the amount of money, in dollars, that Kathryn earns for each sale she makes. The variab

le n represents the number of items sold, and the variable d represents the total amount of money earned.
What is the number of items Kathryn must sell in order to earn $500?




A)10


B)17


C)21


D)23
Mathematics
2 answers:
BartSMP [9]2 years ago
5 0
The answer is C)21
You subtract 500-27.5 and dived by 22.5 and get 21
k0ka [10]2 years ago
4 0

Answer:i think its 21

Step-by-step explanation:

22.5 x 21=472.5 then u have to add 27.5 so 472.5 + 27.5=500

Step-by-step explanation:

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Two numbers have a sum of 49, and 4 TIMES the first number MINUS the second number is EQUAL to 141. What are the two numbers?
Annette [7]

Answer:

I got 38 and 11

Step-by-step explanation:

3 0
3 years ago
HELP ME PLEASE HURRY: Wade has claims that quadrilateral ABCD is a square because he has found that all four sides are congruent
RUDIKE [14]

Answer:

At first we should know that:

<u>The properties of the square are:</u>

  1. It has four equal sides.
  2. All angles are right angles or equal to 90º.
  3. The sum of its all angles is 360º
  4. It has two pairs of perpendicular lines.
  5. It has two pairs of parallel lines.

<u>The properties of Rhombus</u>

  1. It has equal four sides.
  2. The opposite sides are of the same length.
  3. It has two acute angles and two obtuse angles.
  4. The sum of its all angles is 360º
  5. It has zero pairs of perpendicular lines.
  6. It has two pairs of parallel lines.

So, Wade is incorrect because the quadrilateral may be <u>Rhombus</u>

And the quadrilateral to be a square, she needs to show that It has two pairs of perpendicular lines.

6 0
3 years ago
Math help please FAST
Tasya [4]

Answer:

180

60

40

Step-by-step explanation:

Angles in a triangle add up to equal 90 degrees

Equilateral - has all congruent angles and congruent sides

If a triangle has 3 angles and the angles add up to equal 180 then the measure of one angle in an equilateral = 180 / 3 = 60

Bisect means to split into to equal parts

So if you bisect an 80 degree angles you will have two 40 degree angles. ( Because 80/2 = 40 )

3 0
3 years ago
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Help me please!!!!!!!!!!!!!!!!!
Usimov [2.4K]

Answer:

69

Step-by-step explanation:

8 0
3 years ago
Solve the equation for the unknown variable b³ = 5,832
Llana [10]
All you would need to do for this equation is take the cubed root of 5,832

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8 0
3 years ago
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