For Questions 28–37, refer to the following: From years of experience, a bagel shop has determined that at a price of p = $ 2.50 , they will sell x = 450 bagels each week. If they lower the price to p = $ 2.00 , they will sell x = 550 bagels each week. The revenue generated by selling these bagels is the product of the price p times the number of bagels sold, x. Write an equation that represents revenue by substituting your result from above into the equation R = x p .
For Questions 28–37, refer to the following: From years of experience, a bagel shop has determined that at a price of p = $ 2.50 , they will sell x = 450 bagels each week. If they lower the price to p = $ 2.00 , they will sell x = 550 bagels each week. The revenue generated by selling these bagels is the product of the price p times the number of bagels sold, x. Write an equation that represents revenue by substituting your result from above into the equation R = x p .
Solution Summary: The author calculates the equation for revenue in the form of R=xp.
For Questions 28–37, refer to the following: From years of experience, a bagel shop has determined that at a price of
p
=
$
2.50
, they will sell
x
=
450
bagels each week. If they lower the price to
p
=
$
2.00
, they will sell
x
=
550
bagels each week.
The revenue generated by selling these bagels is the product of the price p times the number of bagels sold, x. Write an equation that represents revenue by substituting your result from above into the equation
R
=
x
p
.
For Exercises 49–52, rewrite the equation so that the coefficient on x is positive.
QUESTION 1
The list price of a motorcycle is RM5630 and the price after trade discounts x%, 17% and 5% is
RM3551.40. Find the value of x.
America is getting older. The graph shows the projected elderly U.S. population for ages 65–84 and for ages 85 and older.The formula E = 5.8√x + 56.4 models the projected number of elderly Americans ages 65–84, E, in millions, x years after 2020.a. Use the formula to find the projected increase in the number of Americans ages 65–84, in millions, from 2030 to 2060. Express this difference in simplified radicalform.b. Use a calculator and write your answer in part (a) to the nearest tenth. Does this rounded decimal overestimate or underestimate the difference in the projected data shown by the bar graph ? By how much?
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