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Salsk061 [2.6K]
3 years ago
14

My friend sets out walking at a speed of 3 miles per hour. I set out behind her 5 minutes later at 4 miles per hour. For how man

y minutes will my friend have been walking when I catch up to her?
Mathematics
1 answer:
Vsevolod [243]3 years ago
6 0
Hints: how far behind her will you be when you start (miles, not just hours). What equation then describes your position and your friend's position.
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Bowser ate 4 1/2 pounds of dog food.That amount is 3/4 of the entire bog of dog food. How many pounds of dog food were originall
Molodets [167]

Answer:

because it is 3/4 of the entire bag, there has to be a Ratio:

3:4 = 4.5:w

\frac{3}{4}   \frac{4.5}{w}

cross mult.

3w= 4.5(4)

3w = 18

divide 3 both sided

18/3=6

w=6

6lbs of food.

Therefore, your ans is 6lbs of dog food

Step-by-step explanation:


4 0
3 years ago
If x-1/x=5 find x^3+1/x^3=?
ipn [44]

\dfrac{x-1}{x}=5\ \ \ \ /x\neq0\\\\\dfrac{x-1}{x}=\dfrac{5}{1}\ \ \ \ |\text{cross multiply}\\\\5x=x-1\ \ \ \ |-x\\\\5x=1\ \ \ \ |:5\\\\x=0.2\\\\\dfrac{x^3+1}{x^3}=\dfrac{x^3}{x^3}+\dfrac{1}{x^3}=1+\dfrac{1}{x^3}\to1+\dfrac{1}{0.2^3}=1+\dfrac{1}{0.008}\\\\=1+\dfrac{1}{\frac{8}{1,000}}=1+\dfrac{1,000}{8}=1+125=126\\\\\text{Answer:}\ \dfrac{x^3+1}{x^3}=126

5 0
3 years ago
Read 2 more answers
Please answer this question now
alisha [4.7K]

Answer:

If it's not too late by now, the answer is 19.9 mm^{2}

3 0
3 years ago
Find all of the zeros
noname [10]

Answer:

{-3, -1, 1}

Step-by-step explanation:

Zeros refer to x-intercepts. X-intercepts are x values when y = 0. You can tell where they are by looking at where the line passes the x-axis.

Therefore, {-3, -1, 1} are the zeros.

3 0
3 years ago
Please help me 10 points will give crown
Lubov Fominskaja [6]
A,d,b, and then c ,basically least to greatest
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3 years ago
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