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2 years ago

Someone please help me with this

Mathematics

1 answer:

WINSTONCH [101]2 years ago

6 0

Answer:

<h2>download the app PHOTOMATH and right your solution</h2>

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Which equation represents a constant rate of change of 25?

densk [106]

Answer:

B) 25x = y

Step-by-step explanation:

This is cause it's in the place of the slope which is also the constant rate of change.

Hope that helps and have a great day!

5 0

3 years ago

Read 2 more answers

A motorboat takes 5 hours to travel 150 miles going upstream. The return trip takes 3 hours going downstream. What is the rate o

lys-0071 [83]

Answer:

The rate of the boat in still water is 40 miles per hour

The rate of the current is 10 miles per hour

Step-by-step explanation:

we know that

The speed or rate is equal to divide the distance by the time

Let

x ----> the rate of the current (miles per hour)

y ----> the rate of the boat in still water (miles per hour)

we have that

<em>going upstream </em>

$y-x=\frac{150}{5}$

$y-x=30$ ----> equation A

<em>going downstream </em>

$y+x=\frac{150}{3}$

$y+x=50$ ----> equation B

Solve the system of equations by elimination

Adds equation A and equation B

$y-x=30\\y+x=50\\------\\y+y=30+50\\2y=80\\y=40$

<em>Find the value of x </em>

$y+x=50$

$40+x=50$

$x=10$

therefore

The rate of the boat in still water is 40 miles per hour

The rate of the current is 10 miles per hour

8 0

2 years ago

Can someone pls help me with this question?

JulsSmile [24]

Answer:

Step-by-step explanation:

I think so I might not be right but I'm sure it's c

8 0

3 years ago

Henry is giving a 5.5% tip on his bill ,b and his final cost is $60. Which of the following represents that

Nikitich [7]

Answer:

Step-by-step explanation:

8 0

2 years ago

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HELP ASAP Three generous friends, each with some cash, redistribute their money as follows: Ami gives enough money to Jan and To

DENIUS [597]

Answer:

$252

Step-by-step explanation:

This is quite a neat question, with no fixed equation. Given that each person gives the other two enough money to double their cash, if Toy had 36 dollars beginning, and 36 at the end - presumably the cash of each person, ( their starting and original ) should be the same as well. Respectively each should be a multiple of 36 dollars.

Jan's " give away " = Ami + 36, Jan - 108, Toy + 72

Toy's " give away " = Ami + 72, Jan + 36, Toy - 108

Therefore, we can conclude that Ami = 144 at the start, presuming he gave away 108 dollars, with a remaining 36. Jan, having 144 dollars ( after having his 72 dollars doubled by Ami ) gives 36 to Ami to double his amount, and 72 to double Toy's doubled amount, remaining with 36 dollars. Now Ami has 72 dollars, Jan has 36, and Toy has 144. Then, Toy double's Ami and Jan's amount, giving away 72 and 36 dollars, remaining with 36 dollars himself. Therefore, Ami has 144 dollars, Jan has 72 dollars, and Toy has 36 dollars both at the beginning and end.

144 + 72 + 36 = 252 dollars ( in total )

6 0

2 years ago