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A bird of species? A, when? diving, can travel six times as fast as a bird of species B top speed. If the total speeds for these two birds is 224 miles per hour​

User Doug S
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1 Answer

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Answer:

Maximum speed of bird A is
192\,\,(mi)/(h)

Maximum speed of bird B is
32\,\,(mi)/(h)

Explanation:

This is a problem with two unknowns: Max speed of bird A (we name that "A"), and max speed of bird B (we call that "B"). Now we can create two equations with these two unknowns, based on the info provided:

Equation 1): based on the phrase "bird A can travel six times as fast as bird B" we write:


A=6\,*\, B\\A=6B

Equation 2): based on the phrase; "the total speeds for these two birds is 224 miles per hour​", we write:


A+B=224\,\,(mi)/(h)

Now, we use the first equation to substitute A in the second equation, ad then solve for the unknown B:


A+B=224\,\,(mi)/(h)\\(6B)+B=224\,\,(mi)/(h)\\7B=224\,\,(mi)/(h)\\B=(224)/(7) \,\,(mi)/(h)\\B=32\,\,(mi)/(h)

Now we can solve for the other unknown "A" using the substitution equation and the value of B we just found:


A=6B\\A=6\,(32\,\,(mi)/(h))\\A=192\,\,(mi)/(h)

User Benpalmer
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