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Lostsunrise [7]
3 years ago
9

Sunflower seeds selling for 70 cents per pounde are mixed with finch food selling for 90 cents per pound to create a 13.5 pound

mixture worth $11.05. How many pounds of each seed should be used to make the mixture
Mathematics
1 answer:
Natalka [10]3 years ago
5 0

Answer:

13.5 pounds for each seed.

Step-by-step explanation:

0.7$ of sunflower seed per pound 0.9$ of finch seed per pound

Because 1 $ = 100 cent

So 0.7 * 5.5 = 3.85 $

3.85$ sunflower seed add 5.5 pound

0.9 * 8 = 7.2$ finch seed add 8 pound

8 + 5.5 = 13.5

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Given the Arithmetic sequence A1,A2,A3,A4 53, 62, 71, 80 What is the value of A38?
Murrr4er [49]

Answer:

A_{38}  = 350

Step-by-step explanation:

The 5th term of the arithmetic sequence is 53. We can write the equation:

a + 4d = 53...(1)

The 6th term of the arithmetic sequence is 62. We can write the equation:

a + 5d = 62...(2)

Subtract the first equation from the second one to get:

5d - 4d = 62 - 53

d = 9

The first term is

a + 4(9) = 53

a + 36 = 53

a = 53 - 36

a = 17

The 38th term of the sequence is given by:

A_{38} = a + 37d

A_{38}  = 17+ 37(9)

A_{38}  = 350

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3 years ago
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Can someone tell me<br> How to solve this and a explanation?
Evgesh-ka [11]

Answer:

C

Step-by-step explanation:

Okay so on Saturday there is a 30% sale plus she comes early so +10% and that makes 40% off.

10% of 400=40

multiply by 4 to get 40%, 40*4=40%

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Hope this helps

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3 years ago
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Solve for all possible values of x.<br> √60 8x = x - 9
umka2103 [35]

The possible values of x are 3 and 7

<h3>Solving rational expressions</h3>

Given the rational expression below;

√60-8x = x - 9

Square both sides to have:

(60-8x)² = (x-9)²

60-8x = x²-18x+81

Equate to zero to have;

x²-18x+81 - 60 + 8x = 0

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x² -3x-7x +21 = 0

x(x-3)-7(x-3) = 0

x = 3 and 7

Hence the possible values of x are 3 and 7

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uranmaximum [27]

Answer:

x=1

Step-by-step explanation:

To solve this question we will have to open the bracket first

So let's solve the question

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Bracket first

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