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Lorico [155]
3 years ago
8

What is the value of​ x?

Mathematics
1 answer:
faust18 [17]3 years ago
4 0

Answer:

4.5

Step-by-step explanation:

There is a formula for the Intersection of chords

10*x = 9*5

here.

so....   x = 45/10 = 4.5

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The retail cost of a tv is 45% more than its wholesale cost. Therefore the the retail cost is how many times the wholesale cost
vichka [17]
Let the retail cost be x and the wholesale cost be y. From the first statement, we can formulate the equation written below:

x = y + 0.45y
x = 1.45y
Therefore, the retail cost is 1.45 times greater than the wholesale cost.
5 0
3 years ago
Read 2 more answers
Line a is formed by using the points -1,6 and 3,-2 Line B is formed by using the point -3,0 and 5,4.What linear equations can be
emmasim [6.3K]

Answer:

y  =  -x  + 5

y  =  x/2  + 3/2

Step-by-step explanation:

First we calculate the slope as difference between coordinates

a) P₁ ( -1 , 6 )   P₂  ( 3 , 2 )

m =  Δy/Δx      ⇒  m  =  (  y₂ - y₁ ) / ( x₂ - x₁ )  ⇒  m = (2 -6 ) / (3 -(-1))

m =  -4 /4  

m = -1

Now we have:

y - y₁  = m ( x - x₁ )    ⇒  y  -  6  = (-1) ( x - (-1))

y  -  6  =  -1 * ( x + 1 )   ⇒  y  -  6  =  - x - 1

y  =  -x  + 5

In the second case

Q₁  ( -3 , 0 )  Q₂  ( 5  , 4 )

Again we calculate the slope

m  =  Δy / Δx    ⇒  m  =  ( 4 - 0 ) / ( 5 - (-3))    ⇒  m =  4 / 8   ⇒ m = 1/2

m  = 1/2  or  x = 0,5

And

y - y₁  = 1/2 ( x - x₁ )   ⇒  y  -  y₁  = 1/2 ( x - (-3))   ⇒   y  - 0 = 1/2 * x + 3/2

y  =  x/2  + 3/2

6 0
3 years ago
Larry and Donna bought a sofa at the sale price of $1,344. The original price of the sofa was $1,920. Find the discount rate
velikii [3]

Answer:

30% discount

Step-by-step explanation:

To find the percent discount write a proportion.

\frac{1344}{1920}=\frac{x}{100}

Cross multiply numerator with denominator of each fraction to solve for x.

1344(100) = 1920(x)

134400 = 1920x

70 = x

This means you pay 70% of the price. The discount was 30%.

8 0
3 years ago
Subtract the following polynomials, then place the answer in the proper location on the grid.
adelina 88 [10]

Answer:

3x^{2}-5x+12-(5x^{2}+x-11)=-2x^{2}-6x+23

7 0
3 years ago
Jerri was using a recipe for a large cake that required one-fourth of a tablespoon of cinnamon. Instead of making one large cake
Sergeeva-Olga [200]

Im pretty sure you would put 1/12 tablespoon of cinnamon in the cakes individually. You would divide 1/4 by 3. It's pretty simple. If that's not the answer I apologize dearly!

8 0
3 years ago
Read 2 more answers
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