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Nonamiya [84]
3 years ago
13

Fran brings home $225 per week working 15 hours of which she is able to save $40. Fran wants to have $1,400 saved at the end of

20 weeks. She may work up to 18 hours per week if she wants. She can save all of the money earned working the extra hours. Which of the following statements is true? a. Fran must work at least 15 hours per week to meet her goal. b. Fran must work at least 17 hours per week to meet her goal. c. Fran must work at least 18 hours per week to meet her goal. d. Fran will not be able to reach her goal.
Mathematics
2 answers:
8_murik_8 [283]3 years ago
8 0

Answer:

225+40+1,400=?

Step-by-step explanation:

AlladinOne [14]3 years ago
5 0

Answer: Its B

Step-by-step explanation:

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A cone has radius 9 and height 12. A frustum of this cone has height 4.
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Step-by-step explanation:

In the figure attached below, ABC represents the cone cross-section while the BCDE represents frustum cross-section

As given in the figure radius and height of the cone are 9 and 12 respectively

Similarly, the height of the frustum is 4

Hence the height of the complete cone= 4+12= 16 (height of frustum+ height of cone)

We can see that ΔABC is similar to ΔADE

Using the similarity theorem

AC/AE=BC/DE

Substituting the values  

12/16=9/DE

∴ DE= 16*9/12= 12

Hence the radii of the frustum is 12  

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