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melisa1 [442]
3 years ago
14

Can someone please help Solve. 2a+3=9

Mathematics
2 answers:
dedylja [7]3 years ago
8 0

Answer:

a = 3

Step-by-step explanation:

9-3=6

6/2=3

Ksju [112]3 years ago
8 0
Answer a=3

Solver by taking away 3 from both sides
2a = 6
Then divide both sides by 2
a=3
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Sebastian rides his bike 2,000 meters in 5 minutes. How many meters does he bike in 1 minute?
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Answer:400 meters

Step-by-step explanation:

2000/5=400

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A 748-N man stands in the middle of a frozen pond of radius 4.0 m. He is unable to get to the other side because of a lack of fr
Ber [7]

Answer:

The man will take 64 seconds to reach to the south shore of the frozen pond.

Step-by-step explanation:

Given:

Weight of the man = 748 N      Mass of the man,(m)= \frac{W}{g} = \frac{748}{9.8} = 76.32 kg

Radius of the pond (r) = 4 m

Mass of the textbook = 1.2 kg

Velocity at which the textbook is thrown = 4 ms^1

We have to find the velocity of the man after the throw.

Let the velocity is V_m .

Now using law of conservation of momentum we can find the V_m value.

m_(_b_)V_b_(_i_) +m_(_m_)V_m_(_i_) =m_(_b_)V_b_(_f_)+m_(_m_) V_m_(_f_)

Considering V_m_(_f_)=V_m

And initial velocity of both the man and book i.e V_b_(_i_)=0,\ V_m_(i_)=0

So,

⇒ 0 =m_(_b_)V_b_(_f_)+m_(_m_) V_m

⇒ Plugging the values.

⇒ V_m=-\frac{m_(_b_)V_b_(_f_)}{m_(_m_)}

⇒ V_m=-\frac{1.2\times 4}{76.32}

⇒ V_m=-0.062 ms^-1

Here the negative velocity is meant for opposite direction of the throw.

Numerically we will write, V_m = 0.062

With this velocity the man will move towards south.

We have to calculate the time taken by the man to move to its south shore.

And we know velocity(v)\times time(t) = distance(d)

Let the time taken be t and v\times t = d and d=r then, V_m\times t=r

Then

⇒ t=\frac{radius\ (r)}{V_m}

⇒ Plugging the values.

⇒ t=\frac{4}{0.062}

⇒ t =64 sec

The man will take 64 seconds to reach to the south shore of the frozen pond (circular).

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3 years ago
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Mademuasel [1]

Answer:

idk

Step-by-step explanation:

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HELP PLEASE <br> Write the inequality that models the number granola bars (12) you need to buy.
Goshia [24]
The correct question in the attached figure

Let
x-------------> <span>the number of granola bars 
y-------------> the pounds of fruit

we know that

if 12 bars------------> cost $12
 1 bars--------------> X
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if 9 pounds of fruit----------> cost $36
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</span><span>expression for the total cost=(1)*x+(4)*y----------> x+4y
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<span>an inequality that compares
the total cost with the amount you have to spend is
x+4y<=48
</span>
using a graph tool see the attached figure

<span>the inequality that models the number of granola bars you need to buy is
</span>
x<=12  the solution for the number of granola bars is the interval [0,12]

7 0
3 years ago
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