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marin [14]
3 years ago
11

There is enough grass to feed 10 cows for 8 days.

Mathematics
1 answer:
Ludmilka [50]3 years ago
7 0

Answer:

40 days

Step-by-step explanation:

10 cows multiplied by 8 days equals 80

10 × 8 = 80

that means 80 is the total amount of days if there was only one cow. Divide 80 days by 2 cows and get 40 days for each cow

80 ÷ 2 = 40

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Setler79 [48]
Let w = number of weeks.

In week w,
Laura has: 720 + 30w
Taylor has: 1200 - 30w

Set the two amounts equal and solve for w, the number of weeks.

720 + 30w = 1200 - 30w

60w = 480

w = 8

They will have the same amount of money in 8 weeks.

Laura will have in 8 weeks:
720 + 30w = 720 + 30 * 8 = 720 + 240 = 960

Taylor will have in 8 weeks:
1200 - 30w = 1200 - 30 * 8 = 1200 - 240 = 960

They will both have $960 in 8 weeks.
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3 years ago
Determine the discriminant of x2 = 4. <br><br> A. 17 <br> B. 16 <br> C. -15 <br> D. -10
tino4ka555 [31]
The discriminant is b<span>²-4ac
We can rewrite x</span>² = 4 to x<span>² + 0x - 4 = 0
So a = 1, b = 0, c = -4
</span>Δ = 0 - 4 * 1 * -4
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The answer is B
6 0
3 years ago
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MAVERICK [17]
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Answer:

True

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