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Nataliya [291]
3 years ago
11

WILL GIVE BRAINLIEST FOR A CORRECT ANSWER:

Mathematics
2 answers:
guapka [62]3 years ago
7 0

Answer:

Solution:

the boat's speed in still water: x

The speed with current: (x+3)

The speed against current: (x-3)

The equation is

3(x+3) = 4(x-3)

x = 21 mph

The distance = 3*(21+3)= 72 miles

I  choose (A)

Step-by-step explanation:

dlinn [17]3 years ago
3 0

Answer:

72 Miles

Step-by-step explanation:

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Answer: 4/9

Step-by-step explanation:

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3 years ago
What is the GCF of 27w^4, 45w^2, 18w^5​
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Step-by-step explanation:

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Finger [1]
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3 0
3 years ago
X – 7y = –11<br> 5x + 2y = -18
laiz [17]

Answer:

hope this help you

Step-by-step explanation:

Simplifying

X + -7y = -11

Solving

X + -7y = -11  

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '7y' to each side of the equation.

X + -7y + 7y = -11 + 7y

Combine like terms: -7y + 7y = 0

X = -11 + 7y

Simplifying

X = -11 + 7y

------------------------------------------------------------------------------------------------------------

Solving

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Solving for variable 'x'.

Add '-2y' to each side of the equation.

5x + 2y + -2y = -18 + -2y

Combine like terms: 2y + -2y = 0

5x = -18 + -2y

Divide each side by '5'.

x = -3.6 + -0.4y

Simplifying

x = -3.6 + -0.4y

4 0
3 years ago
Simplify -3x^2- 5x^2(4x^3 – x^2)^2
Lunna [17]
The answer is A :).
7 0
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