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Karolina [17]
3 years ago
7

On Monday, Dalaya had $15. On Tuesday, she bought a t-shirt for $12. On Wednesday, she found $5.50 on the street. On Friday, she

found $3 in her pocket, and then she spent $8 on a cheeseburger for lunch.
Write an addition problem to represent the changing amounts of money Dalaya has.
Find the amount of money Dalaya has by the end of Friday. Show your work to justify your answer.
Mathematics
2 answers:
Oduvanchick [21]3 years ago
6 0

Answer:

15-12+5.50+3-8=27.50

Step-by-step explanation:

You write the equation first and then find the answer.

charle [14.2K]3 years ago
3 0

Answer:

15-12+5.5+3-8

 

Step-by-step explanation:

15-12=3

3+5.5=8.5

8.5+3=11.5

11.5-8=3..5

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Which equation matches the graph shown below?
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Given that the graph shows tha the functión at x = 0 is below the y-axis, the constant term of the function has to be negative. This leaves us two possibilities:

y = 8x^2 + 2x - 5 and y = 2x^2 + 8x - 5

To try to discard one of them, let us use the vertex, which is at x = -2.

With y = 8x^2 + 2x - 5, you get y = 8(-2)^2 + 2(-2) - 5 = 32 - 4 - 5 = 23 , which is not the y-coordinate of the vertex of the curve of the graph.

Test the other equation, y = 2x^2 + 8x - 5 = 2(-2)^2 + 8(-2) - 5 = 8 - 16 - 5 = -13, which is exactly the y-coordinate of the function graphed.

Then, the answer is 2x^2 + 8x  -5
8 0
3 years ago
Karen and James both had 30 stocking stuffer items on their shopping list. After black Friday shopping Karen had finished 35% of
mihalych1998 [28]

Answer: 7.5 items

Step-by-step explanation:

Both Karen and James had 30 stocking items.

Karen bought 35% of her items;

= 35% * 30

= 10.5 items

James has bought 60%;

= 60% * 30

= 18 items

= 18 - 10.5

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Problem 11-3 blair & rosen, inc. (b&r) is a brokerage firm that specializes in investment portfolios designed to meet th
Artyom0805 [142]

Linear programming which shows the best investment strategy for the client is Max Z=0.12I +0.09B and subject to constraints are :I+ B<=25000,

0.005 I +0.004B<=250.

Given maximum investment client can make is $55000, annual return= 9%, The investment advisor requires that at most $25,000 of the client's funds should be invested in the internet fund. The internet fund, which is the more risky of the two investment alternatives, has a risk rating of 5 per thousand dollars invested. the blue chip fund has a risk rating of 4 per thousand dollars invested.

We have to make a linear programming problem.

Let

I= Internet fund investment in thousands.

B=Blue chip fund  investment in thousands.

Objective function:

Max Z=0.12I+0.09B

subject to following constraints:

Investment amount: I+ B<=25000

Risk Rating: 5/100* I+4/100*B<=250 or 0.005 I +0.004B<=250

I,B>=0.

Hence the objective function is Max Z=0.12 I+ 0.09 B.

Learn more about LPP at brainly.com/question/25828237

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3 0
2 years ago
Determine if side lengths 24, 21.5, and 55.5 make a triangle. If so, classify the type of triangle it creates.
valentina_108 [34]

Answer

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Step-by-step explanation:

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