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dem82 [27]
3 years ago
14

Santosh spent $200, before tax, on a DVD player and DVDs. The player cost $120, new DVDs cost $15 and used DVDs cost $5. Santosh

purchased the same number of new and uses DVDs. Write and solve an equation to find the number of each type of DVD Santosh purchased.
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

Santosh purchased 4 new and 4 used DVDs.

Step-by-step explanation:

From the information given, as you know that Santosh spent $200 and that the DVD player cost $120, you can say that the new and used DVDs cost $80, which can be expressed as:

15x+5y=80, where:

x refers to the number of new DVDs

y refers to the number of used DVDs

Now, as the statement indicates that Santosh purchased the same number of new and used DVDs, this means that x is equal to y and you can replace y with x and solve for x:

15x+5x=80

20x=80

x=80/20

x=4

According to this, the answer is that Santosh purchased 4 new and 4 used DVDs.

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Help^0^
jonny [76]

Answer:

180 ml oil

240 g onions

1.35 kg potatoes

1.8 l milk

Step-by-step explanation:

The recipe makes 6 portions and you need 18 portions. Since 6 is 3 times smaller than what you need, just times everything you've been given by 3.

<em>*you can choose to convert into the correct units of measurement before or after dividing. I converted after dividing. Either way works fine though.</em>

1) 60 x 3 = 180 ml

2) 80 x 3 = 240 g

3) 450 x 3 = 1350 g

<em>They want it in kilograms, so divide it by 1,000 to convert. this gives you 1.35 kg.</em>

4) 600 x 3 = 1800 ml

<em>They want it in l, so divide it by 1,000 to convert. this gives you 1.8 l.</em>

Hope this helped : )

5 0
4 years ago
What is the GCF of 100xyz and 25xz
kvv77 [185]

Answer:

25

Step-by-step explanation:

25 goes into 100 4 times, 25 goes into 25 once  i think not sure

6 0
3 years ago
HELP NEED HELP!<br> Choose the similar triangles that have a hypotenuse defined by the equation
77julia77 [94]
Don’t click the link
7 0
3 years ago
Three valid names for an octagon
netineya [11]
Remmeber that an octagon is a polygon formed by chain of 8 straight line segments.

The first valid name for a polygon of eight sides is octagon (from greek oktagonon, which means eight angles) 

The second valid name for a polygon of eight sides is eight-sided polygon.

The third valid name of a polygon of eight sides is 8-gon. After 6 sides, mathematicians usually refer to these polygons as n-gons, so an eight-sided polygon will be an 8-gon.

We can conclude that the three valid names for an octagon are: octagon, eight-sided polygon, and 8-gon.
7 0
3 years ago
(2 1/2)× -8=what is 2 1/2 * -8 equal to
Jlenok [28]
It is -20. try doing it on a calculator!
3 0
3 years ago
Read 2 more answers
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