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AnnZ [28]
3 years ago
12

Jason and Melvin are swimming across a lake that is 4 miles long. Jason swam 2.5 miles in 2 hours and Melvin swam 4 miles in 2.5

hours. What is the average rate, in miles per hour, that Jason swam?
3.25

1.25

2.00

1.60
Mathematics
1 answer:
andre [41]3 years ago
3 0

Answer:

1.25 miles

Step-by-step explanation:

Since Jason swam 2.5 miles in 2 hours - divide the miles/time (2.5/2 = 1.25)

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Elanso [62]

The simplification of a³ - 1000b³ and 64a³ - 125b³ is (a - 10b) × (a² + 10ab + 100b²) and 4a - 5b) • (16a² + 20ab + 25b²) respectively.

<h3>Simplification</h3>

Question 1: a³ - 1000b³

a³ - b³

= (a-b) × (a² +ab +b²)

  • 1000 is the cube of 10
  • a³ is the cube of a¹
  • b³ is the cube of b¹

So,

(a - 10b) × (a² + 10ab + 100b²)

Question 2: 64a³ - 125b³

a³ - b³

= (a-b) × (a² +ab +b²)

  • 64 is the cube of 4
  • 125 is the cube of 5
  • a³ is the cube of a¹
  • b³ is the cube of b¹

So,

(4a - 5b) • (16a² + 20ab + 25b²)

Learn more about simplification:

brainly.com/question/723406

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8 0
2 years ago
Y<br> 10<br> 3<br> 1<br> 6.<br> 1<br> 19<br> 3<br> linear or non linear
Julli [10]

Answer:

Non-linear.

Step-by-step explanation:

3 0
3 years ago
Name the three factors that determine simple interest​
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7 0
3 years ago
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The number of students in an school building that have the flu after t days is given by the function
gulaghasi [49]

Step-by-step explanation:

p(0) =  \frac{800}{1 + 49 {e}^{ - 0.2 \times 0} }  =  \frac{800}{1 + 49}  =  \frac{800}{50}  = 16

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6 0
3 years ago
What is the unknown fraction?
daser333 [38]

Answer:

A. 31/100

Step-by-step explanation:

Change 3/10 to hundreds:

3/10 × 10/10 = 30/100

The denominator (the bottom number) must be 100.

61 - 30 is 31.

The missing number is 31/100. See image.

4 0
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