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lora16 [44]
3 years ago
13

A boat travels 475 miles in 30

Mathematics
1 answer:
Sholpan [36]3 years ago
7 0

Answer:

approx 15.5 hours

Step-by-step explanation:

475/30 = 15.83 miles per hour

245 = 15.83·t

t = 245/15.83

t = 15.5 hours

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Find the 38th term of the sequence. 359, 352, 345
Neporo4naja [7]

Answer:

93

Step-by-step explanation:

each term is being subtracted by 7

knowing that if we multiply 7 by 38 then we will find how much to subtract 359 by , which is 266, to find the 38th term

that's my way of finding the solution

4 0
3 years ago
What is the perfect cubes between 1000 and 3000 that are even numbers
Bogdan [553]
<span>12^3 = 1728 and 14^3 = 2744 First, let's reduce the range of numbers to check. The cube root of 1000 is 10 and the cube root of 3000 is 14.4225. So we need to look at the numbers 11, 12, 13, and 14. Not looking at 10 since the question states "BETWEEN 1000 and 3000". Now the only way you're going to get an odd number when multiplying 2 numbers is if both numbers are odd. And since we're looking for perfect cubes, that would imply that we're cubing an even number. So the answers will be 12^3 = 1728 and 14^3 = 2744</span>
8 0
4 years ago
Is it possible to build a triangle with lengths of 5 7 12
Marysya12 [62]

Answer:

No

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

8 0
3 years ago
In a class test of 15 questions, (+4) marks are given for every correct answer, (– 2) marks are
romanna [79]

If he answered 3 questions correctly, then the number of questions is got wrong is 7 and the number of questions that he did not attempt is 5.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

In a class test of 15 questions, (+4) marks are given for every correct answer, (– 2) marks are given for every incorrect answer, and 0 marks are given for questions that are not attempted. Punit scored (– 2) marks.

If he answered 3 questions correctly, then the number of the question are got wrong and the number of the question that he did not attempt.

Let x be the correct question and y be the incorrect question, z be the number of questions that he did not attempt, and A be the number of the total score. Then we have

4x – 2z = A

x + y + z = 15

If A = -2 and x = 3, then we have

4 × 3 – 2z = -2

      12 + 2 = 2z

              z = 7

Then the value of y will be

3 + y + 7 = 15

           y = 5

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

3 0
2 years ago
Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
scoundrel [369]

Answer:

8(15 – m)

Step-by-step explanation:

Just Did The Test

7 0
3 years ago
Read 2 more answers
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