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Dimas [21]
3 years ago
5

Quadrilateral DEFG has vertices at D(−2,2), E(−1,4), F(2,3), and G(−1,−2). Find the vertices of the quadrilateral after a dilati

on with scale factor 3.5.
Mathematics
1 answer:
dangina [55]3 years ago
7 0

Answer: D(-7,7),E(-3.5,14),F(7,10.5), and G(-3.5, -7)

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A local drama production sold tickets for a play. Adult tickets sold for $10 each and child tickets sold for $5
Nezavi [6.7K]

Answer:

a) The total cost will therefore be :

$10x + $5y = $1750

(ii) The total number of people will therefore be written as:

x + y = 225

(b) Adult ticket = 125 , children = 100

Step-by-step explanation:

Let x represent the total number of adult and let y represent the total number of children.

The cost of ticket for 1 adult = $10 , therefore:

The cost ticket for x adults = $10x

The cost of ticket for a child = $5 , therefore :

the cost of ticket for y children = $5y

This means that

(a) The total cost will therefore be :

$10x + $5y = $1750

(ii) The total number of people will therefore be written as:

x + y = 225

(b) combining the two equations together , we will have

10x + 5y = 1750 ............................... equation 1

x + y = 225 ....................................... equation 2

solving the resulting linear equations by elimination method, from equation 2, make x the subject of formula, equation 2 then becomes

x = 225 - y ....................... equation 3

substitute x = 225 - y into equation 1 , equation 1 then becomes

10 ( 225 - y ) + 5y = 1750

expanding , we have

2250 - 10y + 5y = 1750

2250 - 5y = 1750

2250 - 1750 = 5y

500 = 5y

divide through by 5

y = 100

substitute y = 100 into equation 3 to find the value of x

x = 225 - 100

x = 125

Therefore : 125 adults ticket were sold and 100 children tickets were sold

(c) check : we will substitute the number of each tickets sold into the equation

10x + 5y = 1750

x = 125 , y = 100

10 ( 125 ) + 5 (100)

1250 + 500

= 1750

Also

x + y = 225

125 + 100 = 225

8 0
3 years ago
Based on his salary, Kevin knows that he will have $336.00 withheld from his paycheck for federal income tax. He would like to h
lakkis [162]

Answer:

b. 21% of federal tax

Step-by-step explanation:

70/336 × 100% ≈ 20.83% ≈ 21%

If Kevin is choosing a percentage of federal income tax, then 21% would be the appropriate choice.

_____

<em>Comment on the question</em>

Most withholding forms allow the choice of a percentage or a fixed dollar amount. It might be appropriate for Kevin to choose the amount of $70, rather than a percentage of income or federal tax.

7 0
3 years ago
Read 2 more answers
Which equation describes the line graphed above?​
VikaD [51]
The answer is b yw
have a nice day
6 0
3 years ago
There were 8 pizzas at the pizza party for two families. The Houston family ate 2 2/3 pizzas.
ollegr [7]

Answer:2 pizzas

Step-by-step explanation:

2 2/3 and 2 5/6 can both be rounded to 3. Double that and you get 6. Since there were 8 pizzas originally,subtract 6 from 8 to get 2 remaining pizzas.

6 0
3 years ago
Read 2 more answers
A recipe for sparkling water juice calls for 1 1/2 quarts of sparkling water and 3/4 quart of grape juice
Alexxx [7]

Answer:

You would need 18 quarts of sparkling water to mix with 9 quarts of grape juice

Step-by-step explanation:

1 1/2 ---------> 3/4

x --------------> 9

We clear the value of x:

x = ((9) / (3/4)) * (1 1/2)

Rewriting we have:

x = ((9) * (4/3)) * (1 1/2)

x = (36/3) * (1 1/2)

x = (12) * (1 1/2)

x = (12) * (3/2)

x = 18

7 0
2 years ago
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