2 years ago

Solving a System of Linear Equations: Substitution

Mathematics

1 answer:

CaHeK987 [17]2 years ago

3 0

Answer:

where is the picture of the tables

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The sum of two numbers is -8. The difference of the two numbers is -50. What are the two numbers?

ICE Princess25 [194]

Answer:

42 and -50

Step-by-step explanation:

42+ (-50)= -8

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2 years ago

a gardener has 322 tulip bulbs she wants to plant rows of 15 bulbs how many bulbs can be planted how many bulbs will she have le

Elden [556K]

Answer:315 bulbs planted and 7 left over

Step-by-step explanation:322/15 = 21.44

Roughly around 21 rows.

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2 years ago

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The volume of number three is 63.7

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2 years ago

A sphere rolls up an inclined plane of inclination angle 30 degree. At the bottom of the incline the center of mass of the spher

Zigmanuir [339]

Answer: The sphere is 0.002548 cm travel up the plane.

Step-by-step explanation:

Since we have given that

Inclination angle = 30°

Translational speed = 0.25 m/s

As we know that

$KE=0.5\times lw^2=PE$

and

Length of solid sphere is given by

$l=\dfrac{2Mr^2}{5}$

So, it becomes,

$KE=0.5\times \dfrac{2Mr^2}{5}w^2=Mgd\sin \theta$

And $0.25\ m/sv=rw$

So, it becomes,

$1\times (0.25)^2=5\times d\times 9.81\times \sin 30^\circ\\\\0.0625=49.05d\times \dfrac{1}{2}\\\\\dfrac{0.125}{49.05}=d\\\\d=0.002548$

Hence, the sphere is 0.002548 cm travel up the plane.

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2 years ago

How would I add the fractions?<br><br> <img src="https://tex.z-dn.net/?f=-2%2F5%20%2B%202%2F3p%20%2B1%2F3p%20%3D%202p%20-%2016%2

LiRa [457]

$\bf -\cfrac{2}{5}+\cfrac{2}{3}p+\cfrac{1}{3}p=2p-\cfrac{16}{5}\implies \stackrel{\textit{LCD of 15}}{-\cfrac{2}{5}+\cfrac{2p}{3}+\cfrac{p}{3}}=\stackrel{\textit{LCD of 5}}{2p-\cfrac{16}{5}}
\\\\\\
\cfrac{(3\cdot -2)+(5\cdot 2p)+(5\cdot p)}{15}=\cfrac{(5\cdot 2p)-16}{5}
\\\\\\
\cfrac{-6+10p+5p}{15}=\cfrac{10p-16}{5}\impliedby \textit{now we cross-multiply}
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-30+50p+25p=150p-240\implies -30+240=150p-75p
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210=75p\implies \cfrac{210}{75}=p\implies \cfrac{14}{5}=p$

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2 years ago