Answer:
We can rewrite this expression like this:
And we can use the quadratic formula given by:
Where 
And replacing we got:
And solving we got:
And since the value can't be negative the answer would be x = 32.75 and the value of y = 32.75+10 =42.75
Step-by-step explanation:
For this case we know that we have a rectangular playground and the area can be founded with this formula:
Where x represent the width and y the length. From the problem we know that A =1400 m^2 and the heigth is 10m longer than the wide so we can write this condition as:
And replacing this formula into the area we got:
We can rewrite this expression like this:
And we can use the quadratic formula given by:
Where
And replacing we got:
And solving we got:
And since the value can't be negative the answer would be x = 32.75 and the value of y = 32.75+10 =42.75
<h2>
Answer:</h2>
<u>Question 19:</u>
Option A:
40 x 19 = 760
Option B:
A: 9,500 x 8 = 76,000
76,000 ÷ 100 = 760
B: 4,750 x 8 = 38,000
38,000 ÷ 100 = 380
C: 760 x 8 = 6,080
6,080 ÷ 100 = 60.8
D: 320 x 8 = 2,560
2,560 ÷ 100 = 25.6
<em>Answer:</em> $9,500
<u>Question 20:</u>
5.5 x 30 = 165
165 ÷ 100 = 1.65
1.65 + 5.5 = 7.15
Commission: 7.15%
382,000 x 7.15 = 2,731,300
2,731,300 ÷ 100 = 27,313
<em>Answer:</em> The agent earns $27,313 in commissions.
Answer:
It would be <u>1/7</u>
Because since it’s 2/7, half of 2 is one
250 units would be demanded when price is $11.67.
<h3>What is price elasticity of demand?</h3>
Price elasticity of demand measures the responsiveness of quantity demanded to changes in price of the good.
Price elasticity of demand = percentage change in quantity demanded / percentage change in price
<h3>What is the price?</h3>
Percentage change in the quantity demanded = (250 / 200) - 1 = 25%
Percentage change in price = 25% / 1.5 = 16.67
Price = (1 + 0.1667) x 10 = 11.67
To learn more about price elasticity of demand, please check: brainly.com/question/18850846
Answer:
(9, 27 )
Step-by-step explanation:
Since the dilatation is centred at the origin, multiply each of the coordinates of the original point by the scale factor of 3
(3, 9 ) → (3(3), 3(9)) → (9, 27 )
