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Ilya [14]
4 years ago
9

It takes Andre four minutes to swim five laps how many laps per minute is that and how many minutes per lap is that?

Mathematics
1 answer:
svp [43]4 years ago
6 0

Answer:

It takes him 1 minute and 25 seconds

Step-by-step explanation:

5 divided 4

4 times 1 = 4

5-4=1

put the decimal and make 1=10                           Ans.: 1.25

4 times 2 = 8

10-8=2

put the 0 = 20

4 times 5 =20

20-20=100

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What is the following is the solution to the equation 25^(z+2) = 125
maksim [4K]

First, rewrite the equation 25^{z+2} = 125 with the base equal to 5. Note that:

  • 25=5^2;
  • 125=5^3;
  • 25^{z+2}=(5^2)^{z+2}=5^{2\cdot (z+2)}.

Then

5^{2\cdot (z+2)}=5^3.

Since the bases are equal, you have that powers are equal too:

2\cdot (z+2)=3,\\ \\2z+4=3,\\ \\2z=3-4,\\ \\2z=-1,\\ \\z=-\dfrac{1}{2}.

Answer: z=-\dfrac{1}{2}.


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4 years ago
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qwelly [4]

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Step-by-step explanation:

4 0
3 years ago
I need help with this pls
Vilka [71]
Each chore he completed he gets $3

so 5 x 3 = 15

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8 0
4 years ago
Read 2 more answers
7275 in scientific notation
storchak [24]
I’m 98% sure it’s 7.275*10^0
3 0
3 years ago
For every 6 children there is 1 adult so if there’s 66 children how many adults are there?
tresset_1 [31]

Answer:

11

Step-by-step explanation:

6 : 1

66 : X

X/66 = 1/6

X = 11

4 0
3 years ago
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