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NeTakaya
3 years ago
8

Georgia makes $20 doing lawn work for four hours each week he wants to buy a $2500 use car he has been saving this money 430 wee

ks how much has he saved
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
6 0

430*20 is how much he has saved

8600  he has more than enough for the used car

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How many different triangles can be constructed with three sides each measuring 5 cm
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Answer:

only one triangle can be constructed with three sides each measuring 5cm

Step-by-step explanation:

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How many solutions does the following system of equations have? y=5/2x+2 and 2y=5x+8
Harman [31]
None they are parallel lines - same slope different y intercept
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A home gardener estimates that 24 apple trees will have an average yield of 104 apples per tree. But because of the size of the
d1i1m1o1n [39]

Answer:

The farmer should plant 14 additional trees, for maximum yield.

Step-by-step explanation:

Given

Trees = 24

Yield = 104

x \to additional\ trees

So, we have:

Trees = 24 + x

Yield = 104 - 2x

Required

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The function is:

f(x) = Trees * Yield

f(x) = (24 + x) * (104 - 2x)

Open bracket

f(x) = 24 * 104 + 104x - 24 * 2x - x * 2x

f(x) = 2796 + 104x - 48x - 2x^2

f(x) = 2796 + 56x - 2x^2

Rewrite as:

f(x) = - 2x^2 + 56x + 2796

Differentiate

f'(x) = -4x + 56

Equate f'(x) = -4x + 56 to 0 and solve for x to get the maximum of x

-4x + 56 = 0

-4x =- 56

Divide by -4

x =14

The farmer should plant 14 additional trees, for maximum yield.

5 0
3 years ago
Every even number,except 2,is composite
Degger [83]
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IrinaK [193]

Answer:

2

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d.

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c.

20x4= 80

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= 48

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3 0
2 years ago
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