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astra-53 [7]
3 years ago
9

A flyer for Hubbard’s Food Mart lists some cereals on sale this week at 10% off. If the regular price of Rice Cereal is $3.99, w

hat would the sale price be? Round your answer to the nearest cent. Answer: $
Mathematics
1 answer:
Reika [66]3 years ago
8 0
 <span>the sale price is 10% 

so you pay 90% of the actual price...</span><span>90% = .9 

.9*(actual) = .9 *(3.99) = $3.59 </span><span>sale price is 3.99 -0.40 = $3.59 </span>
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30% of number A is 10 more than 20% of number B. 30% of number B is 35 more than 20% of number A. Find the numbers A and B.
anygoal [31]

Answer:

A = 76.85

B =65.28

Step-by-step explanation:

(30/100)A = 10 + (20/100)B

0.3A - 0.2B = 10 ...... equation (i)

(30/100)B + 35 = (20/100)A

0.2A - 0.3B = 35 ........ equation (ii)

From equation (i)

0.3A = 10 - 0.2B

A = (10 - 0.2b) / 0.3

A = 33.33 - 0.67B ........equation (iii)

Put equation (iii) into equation (ii)

0.2(33.33 - 0.67B) - 0.3B = 35

6.67 - 0.134B - 0.3B = 35

0.434B = 35 - 6.67

B = 28.33 / 0.434

B = 65. 275 = 65.28

Put B = 65.28 into equation (i)

0.3A - 0.2B = 10

0.3A - 0.2(65.28) = 10

0.3A - 13.056 = 10

0.3A = 10 + 13.056

A = 23.056/ 0.3

A = 76.85

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3 years ago
Find the volume of the pyramid
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Answer:

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Step-by-step explanation:

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Answer:

The answer is -3

Step-by-step explanation:

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Answer:

4n+2

Step-by-step explanation:

  1. add all sides =9n+3
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