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Vera_Pavlovna [14]
3 years ago
7

It takes a boat going upstream 5 hours to cover the same distance, as it would cover in 3 hours going downstream. What is the sp

eed of the boat if the speed of the current is 2 kilometers per hour?
Mathematics
1 answer:
Vaselesa [24]3 years ago
8 0

Answer: 15 kilometers per hour

Step-by-step explanation:

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What is the missing value? (-4, 6) and (p, 7) = -1/2
Westkost [7]

Answer: perhaps a rectangle with length L=6

if so , then P = 12 + 2w ---> (P-12)/2 = 2

and area A = 6w ---> w = A/6

IF i get it wrong im swwy ❤️✨

Step-by-step explanation:

5 0
3 years ago
HELP! I NEED TO GET THIS DONE QUICK!! PLEASE!<br> I need help with 3, 7, 8, and 12!
monitta
The answer to the question

5 0
3 years ago
4/5x = -16
Sveta_85 [38]
<h2>Hello!</h2>

The answers are:

1  x=-20

2  x=-9

3 x=-5 

4  r=-2

5  x=-4.5

<h2>Why?</h2>

To know the solution of the problems, we need to isolate each variable.

Remember that:

- If we have an equality: if the number is subtracting (negative sign), and if you need to move it to the other side of the equality, its sign changes to positive.

- If we have an equality: if the number is adding (positive sign), and if you need to move it to the other side of the equality, its sign changes to negative.

- If we have  an equality:  if the number is part of a product , and if you need to move it to the other side of the equality, the same number will be dividing the factors of the side. On the opposite, if the number is dividing, it will be multiplying on the other side of the equality.

So,

1 - Solving for "x"

\frac{4}{5}x=-16\\x=\frac{-16}{\frac{4}{5} }=-16*\frac{5}{4}=-20\\x=-20

2 - Solving for "x"

-3x+4=31\\-3x=31-4=27\\x=\frac{27}{-3}=-9

3 - Solving for "x"

2x+(-12)=-22\\2x-12=-22\\2x=-22+12=-10\\\\2x=-10\\x=\frac{-10}{2}=-5

4  - Finding the solution

25=15-5r\\25-15=-5r\\-5r=10\\r=\frac{10}{-5}=-2

5 - Finding the solution

12.5+5x=-10\\5x=-10-12.5=-22.5\\5x=-22.5\\x=\frac{-22.5}{5}=-4.5

Have a nice day!

8 0
4 years ago
Read 2 more answers
Express the area of the entire rectangle.
11111nata11111 [884]

Answer:

5m^6 - 10m^5 - 5m^4

Step-by-step explanation:

<em><u>All you need to do is distribute the </u></em>5m^4<em><u> to (</u></em>m^2-2m - 1<em><u>), like so:</u></em>

(m^2-2m - 1)(5m^4)

5m^6 - 10m^5 - 5m^4

8 0
3 years ago
URGENT! <br><br> What is the value of x?<br><br> Enter your answer in the box.
tiny-mole [99]
The calue of x is 55
6 0
4 years ago
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