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Anni [7]
3 years ago
6

Isabel ran around the track 6 times at the same rate of speed . It took her 24 minutes to run. John took 3 minutes to run around

the track once. Which student ran faster? Please explain .
Mathematics
2 answers:
Natali [406]3 years ago
8 0
John, since 24/6=4, and 3<4. 
You need to divide 24 by 6 so that you can find how long she took for each lap. no complex math is needed for John since they tell you how long he took for the one lap he ran.
Hope this helps!
Tcecarenko [31]3 years ago
3 0
She ran 6 times 
1 time is 24/6=4 min
John ran the fastest because 3 is faster than 4
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3 years ago
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Factor 26r3s + 52r5 – 39r2s4.
algol [13]

Answer:

13r²(2rs + 4r³ - 3s⁴)

Step-by-step explanation:

In equation 26r³s + 52r⁵ - 39r²s⁴;

The GCF of 26, 52, and 39 = 13

The GCF of r³, r⁵ and r² = r²

The GCF of s, (no "s"), and s⁴ = no "s" (Since one of the number doesn't have "s")

Now we can factor out 13r² from all three expressions;

26r³s + 52r⁵ - 39r²s⁴

=> <em>13r²(2rs) + 13r²(4r³) - 13r²(3s⁴)</em>

To factor it all together;

<u>13r²(2rs + 4r³ - 3s⁴)</u>

Hope this helps!

7 0
2 years ago
–12.3 – 14.2 <br><br> A. 0.9 <br> B. 26.5 <br> C. –0.9 <br> D. –26.5
IrinaK [193]

Answer:

-26.5

Step-by-step explanation:

-12.3 - 14.2 =

in addition or subtraction, if the signs are alike, u add them and keep the same sign

so, -12.3 - 14.2 = - 26.5

but dont get this rule confused with multiplying or dividing...because those have different rules

3 0
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40 April Sales = 20 March Sales
So this means that for every March sale you would have 2 April sales. 40/20 = 2 
7 0
3 years ago
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