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Bad White [126]
3 years ago
15

A boat takes 5hrs to go 25miles upstream. It can go 50miles downstream at the same time.

Mathematics
1 answer:
zaharov [31]3 years ago
3 0
We are told that the boat can travel 25 miles upstream in 5 hours.  That comes to

25 miles
------------ = 5 mph.
 5 hours

In the same 5 hours, that boat can travel 50 miles downstream.  That comes to

50 miles
------------ = 10 mph
 5 hours

Was there more to this question than the above?

Note:  "It can go 50 miles downstream IN the same time (5 hours)."
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Margarita [4]

Answer: 19

Step-by-step explanation:

The angles are supplementary, so

9x-4+x+14=180\\10x-10=180\\10x=190\\x=19

3 0
2 years ago
I need help with this problem please!
kramer

Answer:

585m³

Step-by-step explanation:

Multiply all of the numbers together

13 × 5 × 9 = 585

5 0
4 years ago
Complete the square x^2+7x+11=0
Alona [7]
X^2+7x+49/4=-11+49/4
(X+7/2)^2=5/4
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6 0
3 years ago
?/5 =8/10 type the missing number that makes this fraction equal
SOVA2 [1]
<h2>- - - - - - - - - - - - - - - - - - </h2><h3>\frac{?}{5}  =  \frac{8}{10}</h3><h3>Let's take the missing number as x.</h3>

<h3>\frac{x}{5}  =  \frac{8}{10}</h3><h3>Means = Extremes </h3><h3>x \times 10 = 5 \times 8</h3><h3>x =  \frac{5 \times 8}{10}</h3><h2>___</h2><h3>(Cancel by 2 table)</h3><h3>x =  \frac{5 \times4 }{5}</h3><h2>___</h2><h3>(Cancel by 5 table, So that we cancel 5 in the denominator and numerator)</h3><h3>x = 4</h3><h2>- - - - - - - - - - - - - - - - - -</h2>

<h2>Therefore, The missing number is 4. </h2>
5 0
2 years ago
Read 2 more answers
A right triangle with side a being 7 and the hypotenuse is 8. Find the measure of the missing side length. Round your answer to
Virty [35]

Answer:

4

Step-by-step explanation:

use the Pythagoras' theorem

formula for an ABC triangle( right angled)

AB is height

BC is hypotenuse

CA is length

BC^{2} = AB^{2} + CA^{2}

in your case

AB is 7

BC is 8

CA is unknown so we write x

8^{2}=7^{2}+x^{2}

64=49+x^{2}

64-49=x^{2}

15=x^{2}

\sqrt{15} =x

3.87=x

4=x

7 0
3 years ago
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