Potatoes
lommon core performance assessment
selling potatoes
ms. sacksteader owns a grocery store. she buys
272 pounds of potatoes for $99. she wants to sell
them for twice as much. she makes 9 bags containing
10 pounds each and puts the rest in 5-pound bags.
her family will eat any of the leftover potatoes.
ms. sacksteader wants to know how many 5-pound
bags of potatoes she can sell.
3. mp.1 make sense and persevere what hidden
question do you need to answer first?
each 5-pound bag of
potatoes sells for $4.
4. mp.2 reasoning how does the answer to the hidden
question relate to the original question?
5. mp.4 model with math how can you use an equation to
represent and find how many 5-pound bags of potatoes
ms. sacksteader can sell?
6. mp.6 be precise how much money will ms. sacksteader
make for the 5-pound bags? write and solve an equation
to show you computed accurately.

ik how do do this just give me a few minutes and i will give it to

a

b

d

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places