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yan [13]
3 years ago
15

A boat has a speed of 5 mph in calm water. It takes the boat 3 hours to travel updtream but only 2 hours to travel the same dist

ance downstream. Using the data in the table, what is the value of c, the speed current?
Mathematics
1 answer:
N76 [4]3 years ago
8 0
<span>
2(5+c)=3(5-c) 
solve for c 
10+2c=15-3c 
5c=5
c=1</span>
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Show the work please
igor_vitrenko [27]

Answer:

10/11

Step-by-step explanation:

At first we have to swap the fractions to make those fractions into a normal number. Because it will become a multiplication.

4 × (x + 5) < 5 × (3x + 2)

We will multiply the numbers by the brackets.

4x + 20 < 15x + 10

Now we swap the constant and values from left to right side.

4x - 15x < 10 - 20

or, - 11x < -10

If we divide the inequality by a negative number, say - 11, the inequality becomes reverse.

Therefore,

[-11x ÷ (-11)] > [(-10) ÷ (-11)]

or, x > (10/11)

8 0
3 years ago
Expand completely using the Binomial Theorem<br> (3y - x)^4
AleksAgata [21]

Answer:

In standard form it is x^4 - 12x^3y + 54x^2y^2 - 108x y^3 + 81y^4.

Step-by-step explanation:

(3y)^4 + 4C1(3y)^3(-x) + 4C2(3y)^2(-x)^2 + 4C3(3y)(-x)^3  + (-x)^4

= 81y^4 - 108y^3x + 54y^2x^2 - 12yx^3 + x^4

4 0
3 years ago
HELP ME ASAP!!!!!!!!
Natali5045456 [20]
#9
99 cent for 100 paper
4.29 for 500 paper

multiply 100 and 5=500
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the better deal would be $4.29 for 500 paper

3 0
3 years ago
72,500/2=?<br> 72,500/4=?<br> 72,500/6=?<br> Add all.<br> =?
Kamila [148]

Answer:

66458.33

Step-by-step explanation:

72,500/2 = 36250

72,500/4 = 18125

72,500/6 = 12083.33

All added together your total is 66458.33

6 0
4 years ago
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How I find total surface area
maks197457 [2]

Answer:

there's this site called ixl.com that I use to help me it works very good  I highly recommend it !

Step-by-step explanation:

4 0
3 years ago
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