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never [62]
2 years ago
9

Kali left school and traveled toward her friend’s house at an average speed of 40

Mathematics
1 answer:
ioda2 years ago
3 0
Matt needs to travel 3 hours. 
If 40km=1 hour
   400km=? But there are two distances
200/40*1=5 hours
Therefore Kali needs to travel 5 hours to be 200 km away from the house.
If 50km=1 hour
200km=?
200/50*1hr=4hrs Therefore Matt needs to travel 4hrs to be 200 km away from the house. But Kali traveled 1hr earlier than Matt. 4hrs-1hr=3hrs
Therefore Matt has to travel for 3 hours to be 400km away from Kali.
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Scott wanted to bjy a sofa which originally cost $500.Store A was selling it for 20% off plus 6.5% sales tax.Store B was selling
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Answer:

Store A offers the least amount for the sofa

Step-by-step explanation:

Cost of sofa =$500

For store A

Discount =20% off

The amount of the discount is

=20/100*500

=0.2*500

=$100

6.5% sales tax

The amount of tax is

=6.5/100*500

=0.065*500

=$32.5

Total cost of the sofa

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=400+32.5

=$432.5

For store B

Discount =30% off

The amount of the discount is

=30/100*500

=0.3*500

=$150

Shipping fee $85

Total cost of sofa

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=350+85

=$435

3 0
2 years ago
Elizabeth runs a farm stand that sells apples and raspberries. Each pound of apples sells for $2.25 and each pound of raspberrie
mixas84 [53]

Answer:

Im confused?

Step-by-step explanation:

3 0
1 year ago
Match the following guess solutions yp for the method of undetermined coefficients with the second-order nonhomogeneous linear e
qaws [65]

Answer:

Step-by-step explanation:

For each of the yp(x) we can deduce the characteristic polynomial of the differential equation

A.

yp(x)=Ax^2+Bx+C\\m^2=0\\y''=0

B.

yp(x)=Ae^{2x}\\(m-2)m=0\\m^2-2m=0\\y''-2y=0

C.

yp(x)=Acos2x+Bsin2x\\m_1=2i\\m_2=-2i\\y''+4=0

D.

yp(x)=(Ax+B)cos2x+(Cx+D)sin2x\\yp(x)=xcos4x

hope this helps!!

8 0
2 years ago
the table shows the sales of admission tickets to a science museum. A table labeled Science Museum Admission Revenue. It contain
Margarita [4]
<span>It costs $9.75 per ticket for admission to the art museum

</span><span>Art museum tickets are more expensive than science museum tickets.
</span>
This is confirmed as I did the test.

3 0
2 years ago
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The following length measurements were taken by students using several different measuring devices. Find . the average of the me
marissa [1.9K]
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3 0
2 years ago
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