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WITCHER [35]
3 years ago
7

Need help please?!?!?! Extra points!!!

Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0

Answer:

4.19

Step-by-step explanation:

just use the formula 2pir^2

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$17,818 is invested, part at 11% and the rest at 6%. If the interest earned from the amount invested at 11% exceeds the interest
erma4kov [3.2K]

Answer:We know the total amount of money invested. $17818

x+y=17818,

We know that the difference in interest earned by the two accounts is $490.33

0.11*x-0.06*y=490.33

x=17818-y

We substitute for x

0.11*(17818-y)-0.06*y=490.33

We multiply out

1959.98-0.11y-0.06*y=490.33

We combine like terms.

1469.65=0.17*y

Isolate y

y=1469.65/0.17

y=8645 at 6%

Calculate x

x=17818-8645

x=9173 at 11%

Check

0.11*9173-0.06*8645=490.33

interest earned at 11%=1009.03

interest earned at 6%=518.70

1009.03-518.7=490.33

490.33=490.33

Since this statement is TRUE and neither amount is negative then all is well.We know the total amount of money invested. $17818

x+y=17818,

We know that the difference in interest earned by the two accounts is $490.33

0.11*x-0.06*y=490.33

x=17818-y

We substitute for x

0.11*(17818-y)-0.06*y=490.33

We multiply out

1959.98-0.11y-0.06*y=490.33

We combine like terms.

1469.65=0.17*y

Isolate y

y=1469.65/0.17

y=8645 at 6%

Calculate x

x=17818-8645

x=9173 at 11%

Check

0.11*9173-0.06*8645=490.33

interest earned at 11%=1009.03

interest earned at 6%=518.70

1009.03-518.7=490.33

490.33=490.33

Since this statement is TRUE and neither amount is negative then all is well.

8 0
3 years ago
2,250 watts to horsepower (Round answer to the nearest thousandth.
alexgriva [62]

Answer: 3.017hp

Step-by-step explanation: 745.7watts = 1hp

2250watts will be (2250/745.7)hp

i.e 3.017watts

6 0
3 years ago
josiah is ready to purchase a new watch. it is regularly priced at $480.77. the sale price is $380.54. what is the mark down on
dem82 [27]
20.8478066 (or 20.85%)
you do 480.77 minus 380.54 and it comes out to 100.23 and then you do 100.23/480=x/100 (discount/original=percent/100) and you multiply 100.23 by 100 and it comes to 10023 and you do 10023 divided by 480.77 and it comes out to 20.8478066 or 20.85%
6 0
3 years ago
What is equivalent to 8a-7-29a-8<br> A. 65a+80<br> B. -21a-15<br> C. 3a<br> D. 37a+15
Reptile [31]

Answer:

B. -21a-15

Step-by-step Explanation:

8a-7-29a-8 \\  \\  = 8a - 29a - 7 - 8 \\  \\  =  - 21a - 15

7 0
3 years ago
Describe the transformations that will map triangle A to triangle B and illustrate the similarity between the two triangles.
Rus_ich [418]
Honestly I’m not for sure but I’m think it’s either a or b
6 0
2 years ago
Read 2 more answers
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