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MrRissso [65]
3 years ago
15

Add.3/2a+5/2a PLease help!

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
5 0
The expression 4/a your welcome

Wittaler [7]3 years ago
4 0
The answer should be 4a

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A small motorboat travels 12mph in still water. It takes 2 hours longer to travel 46 miles going upstream than it does going dow
Natasha_Volkova [10]

Using the relation between velocity, distance and time, it is found that the rate of the current is of 3.33 mph.

<h3>What is the relation between velocity, distance and time?</h3>

Velocity is distance divided by time, hence:

v = d/t

A small motorboat travels 12mph in still water. With the current, upstream, 46 miles are traveled in t hours, hence:

12 + r = 46/t

r = 46/t - 12

Downstream, the time is of t + 2 hours, hence:

12 - r = 46/(t + 2)

r = 12 - 46/(t + 2)

Hence, equaling the values for r:

46/t - 12 = 12 - 46/(t + 2)

46/t + 46/(t + 2) = 24

\frac{46t + 92 + 46t}{t(t + 2)} = 24

92t + 92 = 24t² + 48t

24t² - 44t - 92 = 0

Using a quadratic equation calculator, the solution is t = 3. Hence the rate is found as follows:

r = 46/t - 12 = 46/3 - 12 = 3.33 mph.

More can be learned about the relation between velocity, distance and time at brainly.com/question/28155966

#SPJ1

4 0
2 years ago
Solve and graph the inequality. −x4−6≥−8 {"version":"1.1","math":"-x4-6≥-8"} Question 6 options: x ≤ 8 x &lt; –4 x &gt; 8 x ≥ –8
anastassius [24]

Answer:

x \geq  -4

Step-by-step explanation:

The given inequality is

-x(4-6) \geq -8

To solve this inequality, we just have to isolate x

-x(-2) \geq -8

2x\geq -8\\x\geq \frac{-8}{2}\\ x\geq -4

Therefore, the solutions for this inequality is x \geq  -4.

If we graph this inequality, the solution would be like the image attached.

4 0
3 years ago
Read 2 more answers
Help please!!!!!
tiny-mole [99]
<span>A is the correct answer for this</span>
7 0
3 years ago
Read 2 more answers
Can you help me with question 6 please
Licemer1 [7]
I'm pretty sure the answer is 24
4 0
3 years ago
Magalie brings 48 ounces of soda to her daughter's birthday party. She wants to divide allof her soda evenly among the 9 people
Talja [164]

Answer:

Each person will get 5.34 ounces of soda.

Step-by-step explanation:

In order to find out how many ounces of soda each person gets we need to take the total amount of soda Magalie brought to the party and divide it by the number of people that will drink the soda. In this case we have:

amount per person = 48/9 = 5.34 ounces

Each person will get 5.34 ounces of soda.

7 0
3 years ago
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