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3 years ago

8

A system of two linear equations is graphed on a coordinate grid. The lines intersect at one point. Which statement about the sy

stem of equations is True or False (; I will Give you the Brainliest.

1 answer:

jasenka [17]3 years ago

5 0

True I hope this helps

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A lay came to the market to sell eggs . We first customer bought 1/2 of all her eggs and 1/2 of an egg. Her second customer boug

Bezzdna [24]

Given:

First customer bought 1/2 of all eggs of lady seller and 1/2 of an egg.

Her second customer bought 1/2 of all the remaining eggs and 1/2 of an egg.

At this point she had sold all her eggs.

To find:

The number of egg the lady have when she came to the market.

Solution:

Let x be the number of egg that the lady have when she came to the market.

First customer bought 1/2 of all eggs of lady seller and 1/2 of an egg. So, the number of remaining eggs after first customer is

$x-\dfrac{1}{2}x-\dfrac{1}{2}=\dfrac{x}{2}-\dfrac{1}{2}$

Her second customer bought 1/2 of all the remaining eggs and 1/2 of an egg. So, the number of remining egg after second customer is

$\text{Remaining eggs}=\dfrac{x}{2}-\dfrac{1}{2}-(\dfrac{x}{2}-\dfrac{1}{2})\times \dfrac{1}{2}-\dfrac{1}{2}$

$=\dfrac{x}{2}-\dfrac{1}{2}-\dfrac{x}{4}+\dfrac{1}{4}-\dfrac{1}{2}$

$=(\dfrac{x}{2}-\dfrac{x}{4})+(-\dfrac{1}{2}+\dfrac{1}{4}-\dfrac{1}{2})$

$=(\dfrac{2x-x}{4})+(\dfrac{-2+1-2}{4})$

$=\dfrac{x}{4}-\dfrac{3}{4}$

At this point she had sold all her eggs. It means the remining eggs is 0.

$\dfrac{x}{4}-\dfrac{3}{4}=0$

$\dfrac{x}{4}=\dfrac{3}{4}$

Multiply both sides by 4.

$x=3$

Therefore, the lady came to the market is with 3 eggs.

8 0

3 years ago

HELP PICTURE IS SHOWN

Triss [41]

The picture of graph c would be the right one.

4 0

3 years ago

A figure skating school offers introductory lessons at $50 per session. There is also a registration fee of $75.

erica [24]

Answer:

Step-by-step explanation:

a. Y=50x+75

b. Y=50(7)+75

y=350+75

y=425

Yes, you will have enough if you use the 465 certificate. You will have $40 (465-425) left on the gift certificate.

8 0

3 years ago

A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 1

TEA [102]

Answer:

The correct answer will be "0.3043".

Step-by-step explanation:

The given values are:

$\mu = 15$

$n=41$

$\sigma^2=25$

then,

$\sigma=5$

If researchers know representative sample n > 30 and default deviation those who use z-test

∴ $P(x>15.4)$

⇒ $1-P(x$

⇒ $1-P(\frac{x-\mu}{\frac{\sigma}{\sqrt{n} } }$

⇒ $1-P(Z$

⇒ $1-0.695762$

⇒ $0.3043$

6 0

3 years ago

When simplifying x3. x2, the exponents are added together.<br> True<br> False

gladu [14]

When simplifying x3. X2, the exponents are added together true of false
Your answer is true

5 0

2 years ago