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Arada [10]
3 years ago
8

Four more than -3 times a number is equal to 8 more than -4 times the same number

Mathematics
1 answer:
postnew [5]3 years ago
6 0

Answer:

The equation is 4 + ( − 3 x ) = 8 + ( − 4 x ) and the answer is x=4

Explanation:

Let us call the number  

x

and write our condition as:

4 + ( − 3 x ) = 8 + ( − 4 x )

rearranging: 4 x − 3 x = 8 − 4

x = 4

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Please read below. Thank you.
storchak [24]

2+3=5cm

Step-by-step explanation:

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3 years ago
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The mosquito population is a function of rainfall, and can be approximated by the formula N(x)=−x3+45x2+1000 where x is the numb
KiRa [710]

Answer:

Therefore the population will be maximum when x=30 inches.

Step-by-step explanation:

Given that, the mosquito population is a function of rainfall and can be approximated by the formula

N(x)= -x^3+45x^2+1000

where x is the number of inches of rainfall.

N(x)= -x^3+45x^2+1000

Differentiating with respect to x

N'(x)= -3x^2+90x

Again differentiating with respect to x

N''(x)=-6x+90

Now we set N'(x)=0

-3x^2+90x=0

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\Rightarrow x=0,30

N''(0)=-6.0+90=90>0

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Since at x=30, N''(x)<0, So at x=30, N(x) has maximum value.

Therefore the population will be maximum when x=30 inches.

5 0
3 years ago
The area of a rectangular vegetable patch is 42 square meters. It is 7 meters long. How wide is it?
Lyrx [107]
42÷7=6 meters

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3 years ago
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Answer:

6. (Second page)

A. 1/4 of 24 = 6

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The answer is A 3/10 because there is 3 blue marbles and all together there is 10
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3 years ago
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