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anzhelika [568]
3 years ago
12

15q – 4r = 62 5q + 8r = 86

Mathematics
1 answer:
KIM [24]3 years ago
3 0

Answer:

q = 6; r = 7

Step-by-step explanation:

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At princess lake there are 100 ducks. if the number of ducks at the lake doubles every 6 months, how many ducks will there be in
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I guess 1600
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If a person measures 42in in height what does the person measure in feet. I got the answer correct which is 3ft 6in but I need t
faust18 [17]
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For a specific species of fish in a pond, a wildlife biologist wants to build a regression equation to predict the weight of a f
sashaice [31]

Answer: First of all, we will add the options.

A. Yes, because 3 inches falls above the maximum value of lengths in the sample.

B. Yes, because the regression equation is based on a random sample.

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D. No, because 3 inches falls above the maximum value of lengths in the sample.

E. No, because there may not be any 3-inch fish of this species in the pond.

The correct option is D.

Step-by-step explanation: It would not be appropriate to use the model to predict the weight of species that is 3 inches long because 3 inches falls above the maximum value of lengths in the sample.

As we can see from the question, the model only accounts for species that are within the range of 0.75 to 1.35 inches in length, and species smaller or larger than that length have not been taken into consideration. Therefore the model can not be used to predict the weights of fishes not with the range accounted for.

3 0
3 years ago
If x is a positive integer and y is a negative integer than x + y is a rational number.
romanna [79]

Answer:

Yes

Step-by-step explanation:

An integer is a whole number so if x is positive and y is negative then the equation would just be x plus negative y. But x+-y is an odd equation so the simplified version is x-y so it is a rational number, since a rational number is a number that can be rewritten as a simple fraction.

5 0
3 years ago
DONT ANSWER UNLESS I KNOW YOU!!!
Vsevolod [243]

Since Area equals length times width

A=L x W


And its asking twice its width

The height is 15 so if you add it its 30


So to get the answer you multiply 30 times 15 and you will get 450


Hope this helped you :D


Tobey Snaps

6 0
3 years ago
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