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Bezzdna [24]
3 years ago
6

HELP PLS I NEED TO TURN IT IN MONDAY!

Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0

Terri can swim 3 laps in 2.5 minutes. To find how long it takes to swim 20 laps, you can make a proportion.

\frac{Lap}{Time}

Put the amount of laps on the top and the time(minutes) at the bottom.

\frac{3}{2.5} = \frac{20}{x}

Cross multiply:

20 \times 2.5 = 50

Divide by 3:

50 \div 3 = 16 \frac{2}{3} \rightarrow 16.67

It would take Terri 16 \frac{2}{3} OR 16.67 minutes to run 20 laps.

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PLS HELP AND EXPLAIN IT IS PROBABILITY :) oops sorry for caps
Taya2010 [7]

Answer:

1/18 or 0.0555... or %5.555...

Step-by-step explanation:

<u>Step 1:  Find the probability of choosing a 1</u>

1 out of 6 → 1/6

<u>Step 2:  Find the probability of choosing a blue chip.</u>

2 out of 6 → 2/6 → 1/3

<u>Step 3:  Multiply it</u>

1/6 * 1/3

1/18

Answer: 1/18 or 0.0555... or %5.555...

3 0
4 years ago
Which expression is a factor of 12x2 +29x -8
Temka [501]

Answer:

Dear user,

Answer to your query is provided below

(4x−1)(3x+8) is a factor of 12x^2+29x-8

8 0
3 years ago
One factor of x^3+x^2-14x-24 is x-4. Finding the remaining factors and it’s not -3
iren2701 [21]

Step-by-step explanation:

x³ + x² − 14x − 24

x³ + x² − 20x + 6x − 24

x (x² + x − 20) + 6 (x − 4)

x (x + 5) (x − 4) + 6 (x − 4)

(x (x + 5) + 6) (x − 4)

(x² + 5x + 6) (x − 4)

(x + 2) (x + 3) (x − 4)

The other two factors are x + 2 and x + 3.

4 0
3 years ago
The lengths of Brian's isopods were 16 mm, 14 mm, 6 mm,
Ilia_Sergeevich [38]

Answer:

<u>72 mm total and 10.29 mm average.</u>

Step-by-step explanation:

16 mm  

14 mm  

6 mm  

3 mm  

18 mm  

5 mm  

<u>10</u> <u>mm </u>

<u>72</u> mm total length

Divide by 7:  72/7 = <u>10.29</u> mm

6 0
3 years ago
Strat time 3:30 pm end time 7:00 pm what is the elapsed time.
Sergeeva-Olga [200]

Answer:

3 hrs. 30 mins.

Step-by-step explanation:

7:00 - 3:30

4 0
3 years ago
Read 2 more answers
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