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Levart [38]
3 years ago
6

Select the value for “a” that makes this equation true: 45 = 2a +4a + 3

Mathematics
2 answers:
vova2212 [387]3 years ago
7 0

Answer:

Step-by-step explanation:

Here!

lisov135 [29]3 years ago
4 0

Answer:

<em>4</em><em>5</em><em>=</em><em>2</em><em>a</em><em>+</em><em>4</em><em>a</em><em>+</em><em>3</em>

<em>or</em><em>,</em><em>4</em><em>5</em><em>=</em><em>6</em><em>a</em><em>+</em><em>3</em>

<em>or</em><em>,</em><em>4</em><em>5</em><em>-</em><em>3</em><em>=</em><em>6</em><em>a</em>

<em>or</em><em>,</em><em>4</em><em>2</em><em>=</em><em>6</em><em>a</em>

<em>or</em><em>,</em><em>4</em><em>2</em><em>/</em><em>6</em><em>=</em><em>a</em>

<em>or</em><em>,</em><em>7</em><em>=</em><em>a</em>

<em>therefore</em><em>,</em><em>valaue</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>is</em><em> </em><em>7</em><em>.</em><em>.</em>

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Oduvanchick [21]

Answer:

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Step-by-step explanation:

3X6=18

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4 0
3 years ago
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juin [17]

Answer:

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8 0
3 years ago
The expressions a(8x+7) and 4x+3.5 are equivalent. What is the value of a?
valentina_108 [34]

Answer:

a=1/2

Step-by-step explanation:

From the question, the expression a(8x+7) is equivalent to 4x+3.5

     Which means that multiplying 8x by a gives 4x and multiplying 7 by a gives 3.5

So, we can write the following to find the value of a

a(8x+7)\equiv 4x+3.5

we can write the following

8ax=4x

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4 0
4 years ago
WILL GIVE BRAINLIEST
Papessa [141]
<span>the particle's initial position is at t=0, x = 0 - 0 + 4 = 4m

velocity is rate of change of displacement = dx/dt = d(t^3 - 9t^2 +4)/dt
= 3t^2 - 18t

acceleration is rate of change of velocity = d(3t^2 -18t)/dt
= 6t - 18

</span><span>the particle is stationary when velocity = 0, so 3t^2 - 18t =0
</span>3t*(t - 6) = 0
t = 0 or t = 6s

acceleration = 6t - 18 = 0
t = 3s
at t = 3s, velocity = 3(3^2) -18*3 = -27m/s
displacement = 3^3 - 9*3^2 +4 = -50m


6 0
4 years ago
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The height of a 12 year old boy increased by 17% last year and by 12% this year. What is the total increase in percent terms?
OverLord2011 [107]
He increased by 29% because you just add up the percentage 


3 0
3 years ago
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