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saw5 [17]
3 years ago
8

The ratio of Sally’s CDs to Ray’s CDs is 2: 7. Ray has 49 CDs. If Ray gives Sally 21 CDs, what will be the new ratio of Sally’s

CDs to Ray’s?
Mathematics
1 answer:
densk [106]3 years ago
3 0
Sally's CDs to Ray's CDs = 2:7
2 + 7 = 9
Ray's Cds to all CDs is 7:9

2x + 7x = 9x

2x + 49 = 9x

-7x = -49

x = 7

Ray has 7x = 49
Sally has 2x = 14

14:49 is the same as 2:7

Ray has 49 CDs. Sally had 14 CDs.
Ray gives 21 CDs to Sally.

Ray: 49 - 21 = 28
Sally: 14 + 21 = 35

Sally's CDs to Ray's CDs = 35:28 = 5:4
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First, set them up as (4x-6) - (8x +2).

Then simplify.

4x-6-8x-2

4x-8x-6-2

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A school theater can sell 87 tickets for show. if 9 have been sold how many tickets are still left to be sold
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78 tickets left to be sold

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Please help due at 10:00!!!!!!!!!
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<em>9 sheep and 5 goats</em>

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s + g = 14

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3 years ago
If the graphs of the linear equations in a system are parallel,what does that mean about the possible solution (s) of the system
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On march 24, 1989, the exxon valdez oil tanker ran aground and leaked millions of gallons of oil into prince william sound. the
Alja [10]

hours did it take for oil to cover the area  = 592

The correct option is B.

<h3>What is geometrical figure?</h3>

Geometrical shapes are the shapes that depict the shapes of various items. Various figures have two dimensions, while others have three. Only the x and y axes are used for two-dimensional figures, whereas the x, y, and z axes are used for three-dimensional shapes.

<h3>According to the given information:</h3>

Given,

Area = 11000m²

Radius = .10m/h

We know the area of the circle:

Area = πr²

The relation between parameter:

Area = πr²

11000 = 3.14 * (0.10t)²

Dividing both side by 3.14

11000/3.14 = (3.14 * (0.10t)²)/3.14

by solving this we get:

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dividing both side by 0.10

t  = 59.187/.10

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To know more about geometrical figure visit:

brainly.com/question/17321335

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