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spayn [35]
2 years ago
8

Jane paid $40 for an item after she received a 20% discount. Jane's friend says this means that the original price of the item w

as $48. Determine if Jane's friend is correct about the original price of the item.
Mathematics
2 answers:
atroni [7]2 years ago
6 0

Answer:

Jane's friend's assumption about the original price was incorrect.

Step-by-step explanation:

A price of $40 after being given a 20% discount would end up being $50 instead of $48. This is because 20% of $50 is $10, and that is what was deducted from the price to make it $40.

Hope I helped! ☺

Alika [10]2 years ago
3 0

Answer:

she is incorrect because if she was given a 20% discount the amount she would have to pay is 38.4

Step-by-step explanation:

48 x .2 = 9.6

48 - 9.6 = 38.4 not 40

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What is the slipe of (-1,3) and (1,3) ?
Minchanka [31]

Answer:

0 theres no slope lol cause

3-3= 0

1--1=2

7 0
3 years ago
A 6000​-seat theater has tickets for sale at ​$28 and ​$40. How many tickets should be sold at each price for a sellout performa
solniwko [45]

Answer:

Manu tickets should $68 for 12

6 0
3 years ago
Write the equation of a circle for which the endpoints of a diameter are (-2,-2) and (4,-10)
Maurinko [17]

Answer:

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

Step-by-step explanation:

Given:

End point of Diameter be

point A( x₁ , y₁) ≡ ( -2 ,-2 )

point B( x₂ , y₂) ≡ ( 4 , -10 )

To Find:

Equation of a circle =?

Solution:

When end points of the Diameter are A( x₁ , y₁) , B( x₂ , y₂). then the Equation of Circle is given as

(x-x_{1})(x-x_{2})+(y-y_{1})(y-y_{2})=0

Substituting the end point are

(x-(-2))(x-4)+(y-(-2))(y-(-10))=0\\(x+2))(x-4)+(y+2))(y+10))=0\\

Applying Distributive Property we get

x^{2} -2x-8+y^{2}+12y+20 =0\\\\x^{2}+y^{2}-2x+12y+12=0

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

6 0
3 years ago
If the 7th of an AP is equal to 11 times the 11th term, find the 18th term
Zina [86]

Answer:

-33 or 33

Step-by-step explanation:

The seventh term of an AP is written as:

a + 6d

The eleventh term of an AP is written as:

a + 10d

If the 7th term is 11 times the 11th term, then;

a + 6d = 11(a + 10d)

Expand to get:

a + 6d = 11a + 110d

11a - a = 6d - 110d

10a =  - 104d

\frac{a}{d}  = -   \frac{104}{10}

\frac{a}{d}  = -   \frac{52}{5}

We must have a=-52 and d=5

Or

a=52 and d=-5

For the first case, the 18th term is :

- 52 + 5 \times 17 = 33

For the second case,

52 - 5 \times17 =  - 33

3 0
3 years ago
Jordan has 3 blue marbles and 8 red marbles. What is the ratio of blue marbles to red marbles?
fenix001 [56]

Answer:

The ratio of blue to red marbles is 3 to 8.

Hope this helps :) have a good day!

8 0
3 years ago
Read 2 more answers
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